Version 0.9.5

So that rest-server can be started as non-root user.  You can choose
which port to expose, anyway.

.gitignore

@@ -1,5 +1 @@
-*~
-\#*\#
-.\#*
-
 /rest-server

.travis.yml

@@ -3,13 +3,14 @@ sudo: false
 language: go
 
 go:
-  - 1.7.6
-  - 1.8.3
-  - tip
+  - 1.7.x
+  - 1.8.x
+  - 1.9.x
+  - master
 
 matrix:
   allow_failures:
-    - go: tip
+    - go: master
 
 branches:
   only:

Dockerfile

@@ -0,0 +1,16 @@
+FROM alpine:3.6
+
+ENV DATA_DIRECTORY /data
+ENV PASSWORD_FILE /data/.htpasswd
+
+RUN apk add --no-cache --update apache2-utils
+
+COPY rest-server docker/*_user /usr/bin/
+
+VOLUME /data
+
+EXPOSE 8000
+
+COPY docker/entrypoint.sh /entrypoint.sh
+
+CMD [ "/entrypoint.sh" ]

Gopkg.lock

@@ -0,0 +1,41 @@
+# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
+
+
+[[projects]]
+  name = "github.com/gorilla/handlers"
+  packages = ["."]
+  revision = "a4043c62cc2329bacda331d33fc908ab11ef0ec3"
+  source = "https://github.com/gorilla/handlers"
+  version = "v1.2.1"
+
+[[projects]]
+  name = "github.com/inconshreveable/mousetrap"
+  packages = ["."]
+  revision = "76626ae9c91c4f2a10f34cad8ce83ea42c93bb75"
+  version = "v1.0"
+
+[[projects]]
+  branch = "master"
+  name = "github.com/spf13/cobra"
+  packages = ["."]
+  revision = "7b2c5ac9fc04fc5efafb60700713d4fa609b777b"
+
+[[projects]]
+  name = "github.com/spf13/pflag"
+  packages = ["."]
+  revision = "e57e3eeb33f795204c1ca35f56c44f83227c6e66"
+  version = "v1.0.0"
+
+[[projects]]
+  name = "goji.io"
+  packages = [".","internal","middleware","pat","pattern"]
+  revision = "0d89ff54b2c18c9c4ba530e32496aef902d3c6cd"
+  source = "https://github.com/goji/goji"
+  version = "v2.0"
+
+[solve-meta]
+  analyzer-name = "dep"
+  analyzer-version = 1
+  inputs-digest = "ded9eeab22bffb0bbc4513634907b9399f964d8de2276e18e00363245f980c55"
+  solver-name = "gps-cdcl"
+  solver-version = 1

Gopkg.toml

@@ -0,0 +1,9 @@
+[[constraint]]
+  name = "github.com/gorilla/handlers"
+  source = "https://github.com/gorilla/handlers"
+  version = "1.2.0"
+
+[[constraint]]
+  name = "goji.io"
+  source = "https://github.com/goji/goji"
+  version = "2.0.0"

Makefile

@@ -0,0 +1,35 @@
+# Copyright © 2017 Zlatko Čalušić
+#
+# Use of this source code is governed by an MIT-style license that can be found in the LICENSE file.
+#
+
+DOCKER_IMAGE ?= restic/rest-server
+
+.PHONY: default rest-server install uninstall docker_build docker_push clean
+
+default: rest-server
+
+rest-server:
+	@go run build.go
+
+install: rest-server
+	sudo /usr/bin/install -m 755 rest-server /usr/local/bin/rest-server
+
+uninstall:
+	sudo rm -f /usr/local/bin/rest-server
+
+docker_build:
+	docker pull golang:1.9.1-alpine
+	docker run --rm -it \
+		-v $(CURDIR):/go/src/github.com/restic/rest-server \
+		-w /go/src/github.com/restic/rest-server \
+		golang:1.9.1-alpine \
+		go run build.go
+	docker pull alpine:3.6
+	docker build -t $(DOCKER_IMAGE) .
+
+docker_push:
+	docker push $(DOCKER_IMAGE):latest
+
+clean:
+	rm -f rest-server

README.md

@@ -6,37 +6,66 @@
 [![License](https://img.shields.io/badge/license-BSD%20%282--Clause%29-003262.svg?maxAge=2592000)](https://github.com/restic/rest-server/blob/master/LICENSE)
 [![Powered by](https://img.shields.io/badge/powered_by-Go-5272b4.svg?maxAge=2592000)](https://golang.org/)
 
-Rest Server is a high performance HTTP server that implements restic's [REST backend
-API](https://github.com/restic/restic/blob/master/doc/rest_backend.rst).  It provides secure and efficient way to backup
-data remotely, using [restic](https://github.com/restic/restic) backup client.
+Rest Server is a high performance HTTP server that implements restic's [REST backend API](http://restic.readthedocs.io/en/latest/100_references.html#rest-backend).  It provides secure and efficient way to backup data remotely, using [restic](https://github.com/restic/restic) backup client via the [rest: URL](http://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#rest-server).
 
 ## Requirements
 
-Rest Server requires Go 1.7 or higher to build.  The only tested compiler is the official Go compiler.  Building server
-with gccgo may work, but is not supported.
+Rest Server requires Go 1.7 or higher to build.  The only tested compiler is the official Go compiler.  Building server with gccgo may work, but is not supported.
 
-The required version of restic backup client to use with rest-server is
-[v0.6.1](https://github.com/restic/restic/releases/tag/v0.6.1) or higher, due to some
-[changes](https://github.com/restic/restic/commit/1a538509d0232f1a532266e07da509875fe9e0d6) in the REST backend API and
-performance [improvements](https://github.com/restic/restic/commit/04b262d8f10ba9eacde041734c08f806c4685e7f).
+The required version of restic backup client to use with Rest Server is [v0.7.1](https://github.com/restic/restic/releases/tag/v0.7.1) or higher.
+
+If you have a local repository created with an older version of restic client, which you would now like to serve via Rest Server, you need to first create missing subdirectories in the data directory.  Run this simple one-liner in the repository directory:
+
+```for i in {0..255}; do mkdir -p $(printf "data/%02x" $i); done```
 
 ## Installation
 
-Run ```go run build.go```, afterwards you'll find the binary in the current directory.  You can move it anywhere you
-want.  There's also an [example systemd service
-file](https://github.com/restic/rest-server/blob/master/etc/rest-server.service) included, so you can get it up &
-running as a proper service in no time.  Of course, you can also test it from the command line.
+### From source
+
+#### Build
+
+```make```
+
+or
+
+```go run build.go```
+
+If all goes well, you'll find the binary in the current directory.
+
+Alternatively, you can compile and install it in your $GOBIN with a standard `go install ./cmd/rest-server`.  But, beware, you won't have version info built into binary when compiled that way!
+
+#### Install
+
+```make install```
+
+Installs the binary as `/usr/local/bin/rest-server`.
+
+Alternatively, you can install it manually anywhere you want.  It's a single binary, there are no dependencies.
+
+### Docker
+
+#### Build image
+
+```make docker_build```
+
+#### Pull image 
+
+```docker pull restic/rest-server```
+
+## Usage
+
+To learn how to use restic backup client with REST backend, please consult [restic manual](http://restic.readthedocs.io/en/latest/030_preparing_a_new_repo.html#rest-server).
 
 ```
-% go run build.go
+rest-server --help
 
-% ./rest-server --help
 Run a REST server for use with restic
 
 Usage:
   rest-server [flags]
 
 Flags:
+      --append-only         enable append only mode
       --cpuprofile string   write CPU profile to file
       --debug               output debug messages
   -h, --help                help for rest-server
@@ -46,41 +75,78 @@ Flags:
       --tls                 turn on TLS support
 ```
 
-Alternatively, you can compile and install it in your $GOBIN with a standard `go install`.  But, beware, you won't have
-version info built into binary, when compiled that way.
-
-## Getting started
-
 By default the server persists backup data in `/tmp/restic`.  Start the server with a custom persistence directory:
 
 ```
-% rest-server --path /user/home/backup
+rest-server --path /user/home/backup
 ```
 
-The server uses an `.htpasswd` file to specify users.  You can create such a file at the root of the persistence
-directory by executing the following command.  In order to append new user to the file, just omit the `-c` argument.
+The server uses an `.htpasswd` file to specify users.  You can create such a file at the root of the persistence directory by executing the following command.  In order to append new user to the file, just omit the `-c` argument.
 
 ```
-% htpasswd -s -c .htpasswd username
+htpasswd -s -c .htpasswd username
 ```
 
-By default the server uses HTTP protocol.  This is not very secure since with Basic Authentication, username and
-passwords will travel in cleartext in every request.  In order to enable TLS support just add the `-tls` argument and
-add a private and public key at the root of your persistence directory.
+By default the server uses HTTP protocol.  This is not very secure since with Basic Authentication, username and passwords will travel in cleartext in every request.  In order to enable TLS support just add the `-tls` argument and add a private and public key at the root of your persistence directory.
 
-Signed certificate is required by the restic backend, but if you just want to test the feature you can generate unsigned
-keys with the following commands:
+Signed certificate is required by the restic backend, but if you just want to test the feature you can generate unsigned keys with the following commands:
 
 ```
-% openssl genrsa -out private_key 2048
-% openssl req -new -x509 -key private_key -out public_key -days 365
+openssl genrsa -out private_key 2048
+openssl req -new -x509 -key private_key -out public_key -days 365
 ```
 
-Rest Server uses exactly the same directory structure as local backend, so you should be able to access it both locally
-and via HTTP, even simultaneously.
+Append only mode allows creation of new backups but prevents deletion and modification of existing backups. This can be useful when backing up systems that have a potential of being hacked.
 
-To learn how to use restic backup client with REST backend, please consult [restic
-manual](https://restic.readthedocs.io/en/latest/manual.html#rest-server).
+Rest Server uses exactly the same directory structure as local backend, so you should be able to access it both locally and via HTTP, even simultaneously.
+
+### Systemd
+
+There's an example [systemd service file](https://github.com/restic/rest-server/blob/master/etc/rest-server.service) included with the source, so you can get Rest Server up & running as a proper Systemd service in no time.  Before installing, adapt paths and options to your environment.
+
+### Docker
+
+By default, image uses authentication.  To turn it off, set environment variable `DISABLE_AUTHENTICATION` to any value.
+
+Persistent data volume is located to `/data`.
+
+#### Start server
+
+```
+docker run -p 8000:8000 -v /my/data:/data --name rest_server restic/rest-server
+```
+
+It's suggested to set a container name to more easily manage users (see next section).
+
+You can set environment variable `OPTIONS` to any extra flags you'd like to pass to rest-server.
+
+#### Manage users
+
+##### Add user
+
+```
+docker exec -it rest_server create_user myuser
+```
+
+or
+
+```
+docker exec -it rest_server create_user myuser mypassword
+```
+
+##### Delete user
+
+```
+docker exec -it rest_server delete_user myuser
+```
+
+## Why use Rest Server?
+
+Compared to the SFTP backend, the REST backend has better performance, especially so if you can skip additional crypto overhead by using plain HTTP transport (restic already properly encrypts all data it sends, so using HTTPS is mostly about authentication).
+
+But, even if you use HTTPS transport, the REST protocol should be faster and more scalable, due to some inefficiencies of the SFTP protocol (everything needs to be transferred in chunks of 32 KiB at most, each packet needs to be acknowledged by the server).
+
+Finally, the Rest Server implementation is really simple and as such could be used on the low-end devices, no problem.  Also, in some cases, for example behind corporate firewalls, HTTP/S might be the only protocol allowed.  Here too REST backend might be the perfect option for your backup needs.
 
 ## Contributors
 

VERSION

@@ -1 +1 @@
-0.9.2
+0.9.5

build.go

@@ -28,10 +28,10 @@ var config = struct {
 	Main      string
 	Tests     []string
 }{
-	Name:      "rest-server",                             // name of the program executable and directory
-	Namespace: "github.com/restic/rest-server",           // subdir of GOPATH, e.g. "github.com/foo/bar"
-	Main:      "github.com/restic/rest-server",           // package name for the main package
-	Tests:     []string{"github.com/restic/rest-server"}, // tests to run
+	Name:      "rest-server",                                   // name of the program executable and directory
+	Namespace: "github.com/restic/rest-server",                 // subdir of GOPATH, e.g. "github.com/foo/bar"
+	Main:      "github.com/restic/rest-server/cmd/rest-server", // package name for the main package
+	Tests:     []string{"github.com/restic/rest-server"},       // tests to run
 }
 
 // specialDir returns true if the file begins with a special character ('.' or '_').

cmd/rest-server/main.go

@@ -0,0 +1,87 @@
+package main
+
+import (
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+	"runtime"
+	"runtime/pprof"
+
+	restserver "github.com/restic/rest-server"
+	"github.com/spf13/cobra"
+)
+
+// cmdRoot is the base command when no other command has been specified.
+var cmdRoot = &cobra.Command{
+	Use:           "rest-server",
+	Short:         "Run a REST server for use with restic",
+	SilenceErrors: true,
+	SilenceUsage:  true,
+	RunE:          runRoot,
+}
+
+func init() {
+	flags := cmdRoot.Flags()
+	flags.StringVar(&restserver.Config.CPUProfile, "cpuprofile", restserver.Config.CPUProfile, "write CPU profile to file")
+	flags.BoolVar(&restserver.Config.Debug, "debug", restserver.Config.Debug, "output debug messages")
+	flags.StringVar(&restserver.Config.Listen, "listen", restserver.Config.Listen, "listen address")
+	flags.StringVar(&restserver.Config.Log, "log", restserver.Config.Log, "log HTTP requests in the combined log format")
+	flags.StringVar(&restserver.Config.Path, "path", restserver.Config.Path, "data directory")
+	flags.BoolVar(&restserver.Config.TLS, "tls", restserver.Config.TLS, "turn on TLS support")
+	flags.BoolVar(&restserver.Config.AppendOnly, "append-only", restserver.Config.AppendOnly, "enable append only mode")
+}
+
+var version = "manually"
+
+func runRoot(cmd *cobra.Command, args []string) error {
+	log.SetFlags(0)
+
+	log.Printf("rest-server %s compiled with %v on %v/%v\n", version, runtime.Version(), runtime.GOOS, runtime.GOARCH)
+	log.Printf("Data directory: %s", restserver.Config.Path)
+
+	if restserver.Config.CPUProfile != "" {
+		f, err := os.Create(restserver.Config.CPUProfile)
+		if err != nil {
+			return err
+		}
+		if err := pprof.StartCPUProfile(f); err != nil {
+			return err
+		}
+		log.Println("CPU profiling enabled")
+		defer pprof.StopCPUProfile()
+	}
+
+	mux := restserver.NewMux()
+
+	var handler http.Handler
+	htpasswdFile, err := restserver.NewHtpasswdFromFile(filepath.Join(restserver.Config.Path, ".htpasswd"))
+	if err != nil {
+		handler = mux
+		log.Println("Authentication disabled")
+	} else {
+		handler = restserver.AuthHandler(htpasswdFile, mux)
+		log.Println("Authentication enabled")
+	}
+
+	if !restserver.Config.TLS {
+		log.Printf("Starting server on %s\n", restserver.Config.Listen)
+		err = http.ListenAndServe(restserver.Config.Listen, handler)
+	} else {
+		privateKey := filepath.Join(restserver.Config.Path, "private_key")
+		publicKey := filepath.Join(restserver.Config.Path, "public_key")
+		log.Println("TLS enabled")
+		log.Printf("Private key: %s", privateKey)
+		log.Printf("Public key: %s", publicKey)
+		log.Printf("Starting server on %s\n", restserver.Config.Listen)
+		err = http.ListenAndServeTLS(restserver.Config.Listen, publicKey, privateKey, handler)
+	}
+
+	return err
+}
+
+func main() {
+	if err := cmdRoot.Execute(); err != nil {
+		log.Fatalf("error: %v", err)
+	}
+}

docker/create_user

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+if [ -z "$1" ]; then
+    echo "create_user [username]"
+    echo "or"
+    echo "create_user [username] [password]"
+    exit 1
+fi
+
+htpasswd -s $PASSWORD_FILE $1 $2

docker/delete_user

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+if [ -z "$1" ]; then
+    echo "delete_user [username]"
+    exit 1
+fi
+
+htpasswd -D $PASSWORD_FILE $1

docker/entrypoint.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -e
+
+if [ -z "$DISABLE_AUTHENTICATION" ]; then
+    if [ ! -f "$PASSWORD_FILE" ]; then
+        touch "$PASSWORD_FILE"
+    fi
+
+    if [ ! -s "$PASSWORD_FILE" ]; then
+        echo
+        echo "**WARNING** No user exists, please 'docker exec -it \$CONTAINER_ID create_user'"
+        echo
+    fi
+else
+    rm -f "$PASSWORD_FILE"
+fi
+
+exec rest-server --path "$DATA_DIRECTORY" $OPTIONS

glide.lock

@@ -1,25 +0,0 @@
-hash: 2a84da35c7f6887fc08d80cd20da4e38731a81ea9845e1f137f1ba9913d0268d
-updated: 2017-05-31T23:28:23.41107346+02:00
-imports:
-- name: github.com/gorilla/handlers
-  version: a4043c62cc2329bacda331d33fc908ab11ef0ec3
-- name: github.com/inconshreveable/mousetrap
-  version: 76626ae9c91c4f2a10f34cad8ce83ea42c93bb75
-- name: github.com/spf13/cobra
-  version: 8d4ce3549a0bf0e3569df3aae7423b7743cd05a9
-- name: github.com/spf13/pflag
-  version: e57e3eeb33f795204c1ca35f56c44f83227c6e66
-- name: goji.io
-  version: 0d89ff54b2c18c9c4ba530e32496aef902d3c6cd
-  repo: https://github.com/goji/goji
-  vcs: git
-  subpackages:
-  - internal
-  - middleware
-  - pat
-  - pattern
-- name: golang.org/x/net
-  version: 45e771701b814666a7eb299e6c7a57d0b1799e91
-  repo: https://github.com/golang/net
-  vcs: git
-testImports: []

glide.yaml

@@ -1,12 +0,0 @@
-package: github.com/restic/rest-server
-import:
-- package: goji.io
-  version: v2.0
-  repo: https://github.com/goji/goji
-  vcs: git
-- package: golang.org/x/net
-  version: 45e771701b814666a7eb299e6c7a57d0b1799e91
-  repo: https://github.com/golang/net
-  vcs: git
-- package: github.com/spf13/cobra
-- package: github.com/spf13/pflag

handlers.go

@@ -1,13 +1,15 @@
-package main
+package restserver
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"io/ioutil"
 	"log"
 	"net/http"
 	"os"
+	"path"
 	"path/filepath"
 	"strings"
 	"time"
@@ -20,12 +22,83 @@ func isHashed(dir string) bool {
 	return dir == "data"
 }
 
-func getRepo(r *http.Request) string {
-	if strings.HasPrefix(fmt.Sprintf("%s", middleware.Pattern(r.Context())), "/:repo") {
-		return filepath.Join(config.path, pat.Param(r, "repo"))
+func valid(name string) bool {
+	// taken from net/http.Dir
+	if strings.Contains(name, "\x00") {
+		return false
 	}
 
-	return config.path
+	if filepath.Separator != '/' && strings.ContainsRune(name, filepath.Separator) {
+		return false
+	}
+
+	return true
+}
+
+var validTypes = []string{"data", "index", "keys", "locks", "snapshots", "config"}
+
+func isValidType(name string) bool {
+	for _, tpe := range validTypes {
+		if name == tpe {
+			return true
+		}
+	}
+
+	return false
+}
+
+// join takes a number of path names, sanitizes them, and returns them joined
+// with base for the current operating system to use (dirs separated by
+// filepath.Separator). The returned path is always either equal to base or a
+// subdir of base.
+func join(base string, names ...string) (string, error) {
+	clean := make([]string, 0, len(names)+1)
+	clean = append(clean, base)
+
+	// taken from net/http.Dir
+	for _, name := range names {
+		if !valid(name) {
+			return "", errors.New("invalid character in path")
+		}
+
+		clean = append(clean, filepath.FromSlash(path.Clean("/"+name)))
+	}
+
+	return filepath.Join(clean...), nil
+}
+
+// getRepo returns the repository location, relative to Config.Path.
+func getRepo(r *http.Request) string {
+	if strings.HasPrefix(fmt.Sprintf("%s", middleware.Pattern(r.Context())), "/:repo") {
+		return pat.Param(r, "repo")
+	}
+
+	return "."
+}
+
+// getPath returns the path for a file type in the repo.
+func getPath(r *http.Request, fileType string) (string, error) {
+	if !isValidType(fileType) {
+		return "", errors.New("invalid file type")
+	}
+	return join(Config.Path, getRepo(r), fileType)
+}
+
+// getFilePath returns the path for a file in the repo.
+func getFilePath(r *http.Request, fileType, name string) (string, error) {
+	if !isValidType(fileType) {
+		return "", errors.New("invalid file type")
+	}
+
+	if isHashed(fileType) {
+		if len(name) < 2 {
+			return "", errors.New("file name is too short")
+		}
+
+		return join(Config.Path, getRepo(r), fileType, name[:2], name)
+	}
+
+	return join(Config.Path, getRepo(r), fileType, name)
 }
 
 // AuthHandler wraps h with a http.HandlerFunc that performs basic authentication against the user/passwords pairs
@@ -43,13 +116,18 @@ func AuthHandler(f *HtpasswdFile, h http.Handler) http.HandlerFunc {
 
 // CheckConfig checks whether a configuration exists.
 func CheckConfig(w http.ResponseWriter, r *http.Request) {
-	if config.debug {
+	if Config.Debug {
 		log.Println("CheckConfig()")
 	}
-	cfg := filepath.Join(getRepo(r), "config")
+	cfg, err := getPath(r, "config")
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+		return
+	}
+
 	st, err := os.Stat(cfg)
 	if err != nil {
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
@@ -61,14 +139,18 @@ func CheckConfig(w http.ResponseWriter, r *http.Request) {
 
 // GetConfig allows for a config to be retrieved.
 func GetConfig(w http.ResponseWriter, r *http.Request) {
-	if config.debug {
+	if Config.Debug {
 		log.Println("GetConfig()")
 	}
-	cfg := filepath.Join(getRepo(r), "config")
+	cfg, err := getPath(r, "config")
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+		return
+	}
 
 	bytes, err := ioutil.ReadFile(cfg)
 	if err != nil {
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
@@ -80,14 +162,18 @@ func GetConfig(w http.ResponseWriter, r *http.Request) {
 
 // SaveConfig allows for a config to be saved.
 func SaveConfig(w http.ResponseWriter, r *http.Request) {
-	if config.debug {
+	if Config.Debug {
 		log.Println("SaveConfig()")
 	}
-	cfg := filepath.Join(getRepo(r), "config")
+	cfg, err := getPath(r, "config")
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+		return
+	}
 
 	bytes, err := ioutil.ReadAll(r.Body)
 	if err != nil {
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
@@ -95,7 +181,7 @@ func SaveConfig(w http.ResponseWriter, r *http.Request) {
 	}
 
 	if err := ioutil.WriteFile(cfg, bytes, 0600); err != nil {
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
@@ -105,12 +191,23 @@ func SaveConfig(w http.ResponseWriter, r *http.Request) {
 
 // DeleteConfig removes a config.
 func DeleteConfig(w http.ResponseWriter, r *http.Request) {
-	if config.debug {
+	if Config.Debug {
 		log.Println("DeleteConfig()")
 	}
 
-	if err := os.Remove(filepath.Join(getRepo(r), "config")); err != nil {
-		if config.debug {
+	if Config.AppendOnly {
+		http.Error(w, http.StatusText(http.StatusForbidden), http.StatusForbidden)
+		return
+	}
+
+	cfg, err := getPath(r, "config")
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+		return
+	}
+
+	if err := os.Remove(cfg); err != nil {
+		if Config.Debug {
 			log.Print(err)
 		}
 		if os.IsNotExist(err) {
@@ -124,15 +221,19 @@ func DeleteConfig(w http.ResponseWriter, r *http.Request) {
 
 // ListBlobs lists all blobs of a given type in an arbitrary order.
 func ListBlobs(w http.ResponseWriter, r *http.Request) {
-	if config.debug {
+	if Config.Debug {
 		log.Println("ListBlobs()")
 	}
-	dir := pat.Param(r, "type")
-	path := filepath.Join(getRepo(r), dir)
+	fileType := pat.Param(r, "type")
+	path, err := getPath(r, fileType)
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+		return
+	}
 
 	items, err := ioutil.ReadDir(path)
 	if err != nil {
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
@@ -141,11 +242,11 @@ func ListBlobs(w http.ResponseWriter, r *http.Request) {
 
 	var names []string
 	for _, i := range items {
-		if isHashed(dir) {
+		if isHashed(fileType) {
 			subpath := filepath.Join(path, i.Name())
 			subitems, err := ioutil.ReadDir(subpath)
 			if err != nil {
-				if config.debug {
+				if Config.Debug {
 					log.Print(err)
 				}
 				http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
@@ -161,7 +262,7 @@ func ListBlobs(w http.ResponseWriter, r *http.Request) {
 
 	data, err := json.Marshal(names)
 	if err != nil {
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
@@ -173,20 +274,19 @@ func ListBlobs(w http.ResponseWriter, r *http.Request) {
 
 // CheckBlob tests whether a blob exists.
 func CheckBlob(w http.ResponseWriter, r *http.Request) {
-	if config.debug {
+	if Config.Debug {
 		log.Println("CheckBlob()")
 	}
-	dir := pat.Param(r, "type")
-	name := pat.Param(r, "name")
 
-	if isHashed(dir) {
-		name = filepath.Join(name[:2], name)
+	path, err := getFilePath(r, pat.Param(r, "type"), pat.Param(r, "name"))
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+		return
 	}
-	path := filepath.Join(getRepo(r), dir, name)
 
 	st, err := os.Stat(path)
 	if err != nil {
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
@@ -198,20 +298,19 @@ func CheckBlob(w http.ResponseWriter, r *http.Request) {
 
 // GetBlob retrieves a blob from the repository.
 func GetBlob(w http.ResponseWriter, r *http.Request) {
-	if config.debug {
+	if Config.Debug {
 		log.Println("GetBlob()")
 	}
-	dir := pat.Param(r, "type")
-	name := pat.Param(r, "name")
 
-	if isHashed(dir) {
-		name = filepath.Join(name[:2], name)
+	path, err := getFilePath(r, pat.Param(r, "type"), pat.Param(r, "name"))
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+		return
 	}
-	path := filepath.Join(getRepo(r), dir, name)
 
 	file, err := os.Open(path)
 	if err != nil {
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
@@ -224,21 +323,19 @@ func GetBlob(w http.ResponseWriter, r *http.Request) {
 
 // SaveBlob saves a blob to the repository.
 func SaveBlob(w http.ResponseWriter, r *http.Request) {
-	if config.debug {
+	if Config.Debug {
 		log.Println("SaveBlob()")
 	}
-	repo := getRepo(r)
-	dir := pat.Param(r, "type")
-	name := pat.Param(r, "name")
 
-	if isHashed(dir) {
-		name = filepath.Join(name[:2], name)
+	path, err := getFilePath(r, pat.Param(r, "type"), pat.Param(r, "name"))
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+		return
 	}
-	path := filepath.Join(repo, dir, name)
 
 	tf, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_EXCL, 0600)
 	if err != nil {
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
@@ -248,7 +345,7 @@ func SaveBlob(w http.ResponseWriter, r *http.Request) {
 	if _, err := io.Copy(tf, r.Body); err != nil {
 		tf.Close()
 		os.Remove(path)
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
@@ -258,7 +355,7 @@ func SaveBlob(w http.ResponseWriter, r *http.Request) {
 	if err := tf.Sync(); err != nil {
 		tf.Close()
 		os.Remove(path)
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
@@ -267,7 +364,7 @@ func SaveBlob(w http.ResponseWriter, r *http.Request) {
 
 	if err := tf.Close(); err != nil {
 		os.Remove(path)
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
@@ -277,19 +374,23 @@ func SaveBlob(w http.ResponseWriter, r *http.Request) {
 
 // DeleteBlob deletes a blob from the repository.
 func DeleteBlob(w http.ResponseWriter, r *http.Request) {
-	if config.debug {
+	if Config.Debug {
 		log.Println("DeleteBlob()")
 	}
-	dir := pat.Param(r, "type")
-	name := pat.Param(r, "name")
 
-	if isHashed(dir) {
-		name = filepath.Join(name[:2], name)
+	if Config.AppendOnly && pat.Param(r, "type") != "locks" {
+		http.Error(w, http.StatusText(http.StatusForbidden), http.StatusForbidden)
+		return
+	}
+
+	path, err := getFilePath(r, pat.Param(r, "type"), pat.Param(r, "name"))
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+		return
 	}
-	path := filepath.Join(getRepo(r), dir, name)
 
 	if err := os.Remove(path); err != nil {
-		if config.debug {
+		if Config.Debug {
 			log.Print(err)
 		}
 		if os.IsNotExist(err) {
@@ -303,10 +404,15 @@ func DeleteBlob(w http.ResponseWriter, r *http.Request) {
 
 // CreateRepo creates repository directories.
 func CreateRepo(w http.ResponseWriter, r *http.Request) {
-	if config.debug {
+	if Config.Debug {
 		log.Println("CreateRepo()")
 	}
-	repo := getRepo(r)
+
+	repo, err := join(Config.Path, getRepo(r))
+	if err != nil {
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+		return
+	}
 
 	if r.URL.Query().Get("create") != "true" {
 		http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
@@ -321,7 +427,11 @@ func CreateRepo(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	for _, d := range []string{"data", "index", "keys", "locks", "snapshots", "tmp"} {
+	for _, d := range validTypes {
+		if d == "config" {
+			continue
+		}
+
 		if err := os.MkdirAll(filepath.Join(repo, d), 0700); err != nil {
 			log.Print(err)
 			http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)

handlers_test.go

@@ -0,0 +1,39 @@
+package restserver
+
+import (
+	"path/filepath"
+	"testing"
+)
+
+func TestJoin(t *testing.T) {
+	var tests = []struct {
+		base, name string
+		result     string
+	}{
+		{"/", "foo/bar", "/foo/bar"},
+		{"/srv/server", "foo/bar", "/srv/server/foo/bar"},
+		{"/srv/server", "/foo/bar", "/srv/server/foo/bar"},
+		{"/srv/server", "foo/../bar", "/srv/server/bar"},
+		{"/srv/server", "../bar", "/srv/server/bar"},
+		{"/srv/server", "..", "/srv/server"},
+		{"/srv/server", "../..", "/srv/server"},
+		{"/srv/server", "/repo/data/", "/srv/server/repo/data"},
+		{"/srv/server", "/repo/data/../..", "/srv/server"},
+		{"/srv/server", "/repo/data/../data/../../..", "/srv/server"},
+		{"/srv/server", "/repo/data/../data/../../..", "/srv/server"},
+	}
+
+	for _, test := range tests {
+		t.Run("", func(t *testing.T) {
+			got, err := join(filepath.FromSlash(test.base), test.name)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			want := filepath.FromSlash(test.result)
+			if got != want {
+				t.Fatalf("wrong result returned, want %v, got %v", want, got)
+			}
+		})
+	}
+}

htpasswd.go

@@ -1,4 +1,4 @@
-package main
+package restserver
 
 /*
 Copied from: github.com/bitly/oauth2_proxy

main.go

@@ -1,154 +0,0 @@
-package main
-
-import (
-	"log"
-	"net/http"
-	"os"
-	"path/filepath"
-	"runtime"
-	"runtime/pprof"
-
-	"github.com/gorilla/handlers"
-	"github.com/spf13/cobra"
-	"goji.io"
-	"goji.io/pat"
-)
-
-// cmdRoot is the base command when no other command has been specified.
-var cmdRoot = &cobra.Command{
-	Use:           "rest-server",
-	Short:         "Run a REST server for use with restic",
-	SilenceErrors: true,
-	SilenceUsage:  true,
-	RunE:          runRoot,
-}
-
-var config = struct {
-	path       string
-	listen     string
-	tls        bool
-	log        string
-	cpuprofile string
-	debug      bool
-}{}
-
-func init() {
-	flags := cmdRoot.Flags()
-	flags.StringVar(&config.cpuprofile, "cpuprofile", "", "write CPU profile to file")
-	flags.BoolVar(&config.debug, "debug", false, "output debug messages")
-	flags.StringVar(&config.listen, "listen", ":8000", "listen address")
-	flags.StringVar(&config.log, "log", "", "log HTTP requests in the combined log format")
-	flags.StringVar(&config.path, "path", "/tmp/restic", "data directory")
-	flags.BoolVar(&config.tls, "tls", false, "turn on TLS support")
-}
-
-func debugHandler(next http.Handler) http.Handler {
-	return http.HandlerFunc(
-		func(w http.ResponseWriter, r *http.Request) {
-			log.Printf("%s %s", r.Method, r.URL)
-			next.ServeHTTP(w, r)
-		})
-}
-
-func logHandler(next http.Handler) http.Handler {
-	accessLog, err := os.OpenFile(config.log, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	return handlers.CombinedLoggingHandler(accessLog, next)
-}
-
-func setupMux() *goji.Mux {
-	mux := goji.NewMux()
-
-	if config.debug {
-		mux.Use(debugHandler)
-	}
-
-	if config.log != "" {
-		mux.Use(logHandler)
-	}
-
-	mux.HandleFunc(pat.Head("/config"), CheckConfig)
-	mux.HandleFunc(pat.Head("/:repo/config"), CheckConfig)
-	mux.HandleFunc(pat.Get("/config"), GetConfig)
-	mux.HandleFunc(pat.Get("/:repo/config"), GetConfig)
-	mux.HandleFunc(pat.Post("/config"), SaveConfig)
-	mux.HandleFunc(pat.Post("/:repo/config"), SaveConfig)
-	mux.HandleFunc(pat.Delete("/config"), DeleteConfig)
-	mux.HandleFunc(pat.Delete("/:repo/config"), DeleteConfig)
-	mux.HandleFunc(pat.Get("/:type/"), ListBlobs)
-	mux.HandleFunc(pat.Get("/:repo/:type/"), ListBlobs)
-	mux.HandleFunc(pat.Head("/:type/:name"), CheckBlob)
-	mux.HandleFunc(pat.Head("/:repo/:type/:name"), CheckBlob)
-	mux.HandleFunc(pat.Get("/:type/:name"), GetBlob)
-	mux.HandleFunc(pat.Get("/:repo/:type/:name"), GetBlob)
-	mux.HandleFunc(pat.Post("/:type/:name"), SaveBlob)
-	mux.HandleFunc(pat.Post("/:repo/:type/:name"), SaveBlob)
-	mux.HandleFunc(pat.Delete("/:type/:name"), DeleteBlob)
-	mux.HandleFunc(pat.Delete("/:repo/:type/:name"), DeleteBlob)
-	mux.HandleFunc(pat.Post("/"), CreateRepo)
-	mux.HandleFunc(pat.Post("/:repo"), CreateRepo)
-	mux.HandleFunc(pat.Post("/:repo/"), CreateRepo)
-
-	return mux
-}
-
-var version = "manually"
-
-func runRoot(cmd *cobra.Command, args []string) error {
-	log.SetFlags(0)
-
-	log.Printf("rest-server %s compiled with %v on %v/%v\n", version, runtime.Version(), runtime.GOOS, runtime.GOARCH)
-	log.Printf("Data directory: %s", config.path)
-
-	if config.cpuprofile != "" {
-		f, err := os.Create(config.cpuprofile)
-		if err != nil {
-			log.Fatal(err)
-		}
-		if err := pprof.StartCPUProfile(f); err != nil {
-			log.Fatal(err)
-		}
-		log.Println("CPU profiling enabled")
-		defer pprof.StopCPUProfile()
-	}
-
-	mux := setupMux()
-
-	var handler http.Handler
-	htpasswdFile, err := NewHtpasswdFromFile(filepath.Join(config.path, ".htpasswd"))
-	if err != nil {
-		handler = mux
-		log.Println("Authentication disabled")
-	} else {
-		handler = AuthHandler(htpasswdFile, mux)
-		log.Println("Authentication enabled")
-	}
-
-	if !config.tls {
-		log.Printf("Starting server on %s\n", config.listen)
-		err = http.ListenAndServe(config.listen, handler)
-	} else {
-		privateKey := filepath.Join(config.path, "private_key")
-		publicKey := filepath.Join(config.path, "public_key")
-		log.Println("TLS enabled")
-		log.Printf("Private key: %s", privateKey)
-		log.Printf("Public key: %s", publicKey)
-		log.Printf("Starting server on %s\n", config.listen)
-		err = http.ListenAndServeTLS(config.listen, publicKey, privateKey, handler)
-	}
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	return nil
-
-}
-
-func main() {
-	if err := cmdRoot.Execute(); err != nil {
-		log.Fatalf("error: %v", err)
-	}
-}

mux.go

@@ -0,0 +1,79 @@
+package restserver
+
+import (
+	"log"
+	"net/http"
+	"os"
+
+	goji "goji.io"
+
+	"github.com/gorilla/handlers"
+	"goji.io/pat"
+)
+
+var Config = struct {
+	Path       string
+	Listen     string
+	TLS        bool
+	Log        string
+	CPUProfile string
+	Debug      bool
+	AppendOnly bool
+}{
+	Path:       "/tmp/restic",
+	Listen:     ":8000",
+	AppendOnly: false,
+}
+
+func debugHandler(next http.Handler) http.Handler {
+	return http.HandlerFunc(
+		func(w http.ResponseWriter, r *http.Request) {
+			log.Printf("%s %s", r.Method, r.URL)
+			next.ServeHTTP(w, r)
+		})
+}
+
+func logHandler(next http.Handler) http.Handler {
+	accessLog, err := os.OpenFile(Config.Log, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
+	if err != nil {
+		log.Fatalf("error: %v", err)
+	}
+
+	return handlers.CombinedLoggingHandler(accessLog, next)
+}
+
+func NewMux() *goji.Mux {
+	mux := goji.NewMux()
+
+	if Config.Debug {
+		mux.Use(debugHandler)
+	}
+
+	if Config.Log != "" {
+		mux.Use(logHandler)
+	}
+
+	mux.HandleFunc(pat.Head("/config"), CheckConfig)
+	mux.HandleFunc(pat.Head("/:repo/config"), CheckConfig)
+	mux.HandleFunc(pat.Get("/config"), GetConfig)
+	mux.HandleFunc(pat.Get("/:repo/config"), GetConfig)
+	mux.HandleFunc(pat.Post("/config"), SaveConfig)
+	mux.HandleFunc(pat.Post("/:repo/config"), SaveConfig)
+	mux.HandleFunc(pat.Delete("/config"), DeleteConfig)
+	mux.HandleFunc(pat.Delete("/:repo/config"), DeleteConfig)
+	mux.HandleFunc(pat.Get("/:type/"), ListBlobs)
+	mux.HandleFunc(pat.Get("/:repo/:type/"), ListBlobs)
+	mux.HandleFunc(pat.Head("/:type/:name"), CheckBlob)
+	mux.HandleFunc(pat.Head("/:repo/:type/:name"), CheckBlob)
+	mux.HandleFunc(pat.Get("/:type/:name"), GetBlob)
+	mux.HandleFunc(pat.Get("/:repo/:type/:name"), GetBlob)
+	mux.HandleFunc(pat.Post("/:type/:name"), SaveBlob)
+	mux.HandleFunc(pat.Post("/:repo/:type/:name"), SaveBlob)
+	mux.HandleFunc(pat.Delete("/:type/:name"), DeleteBlob)
+	mux.HandleFunc(pat.Delete("/:repo/:type/:name"), DeleteBlob)
+	mux.HandleFunc(pat.Post("/"), CreateRepo)
+	mux.HandleFunc(pat.Post("/:repo"), CreateRepo)
+	mux.HandleFunc(pat.Post("/:repo/"), CreateRepo)
+
+	return mux
+}

vendor/github.com/spf13/cobra/.travis.yml

@@ -2,8 +2,8 @@ language: go
 
 matrix:
   include:
-    - go: 1.7.5
-    - go: 1.8.1
+    - go: 1.7.6
+    - go: 1.8.3
     - go: tip
   allow_failures:
     - go: tip

vendor/github.com/spf13/cobra/args.go

@@ -0,0 +1,98 @@
+package cobra
+
+import (
+	"fmt"
+)
+
+type PositionalArgs func(cmd *Command, args []string) error
+
+// Legacy arg validation has the following behaviour:
+// - root commands with no subcommands can take arbitrary arguments
+// - root commands with subcommands will do subcommand validity checking
+// - subcommands will always accept arbitrary arguments
+func legacyArgs(cmd *Command, args []string) error {
+	// no subcommand, always take args
+	if !cmd.HasSubCommands() {
+		return nil
+	}
+
+	// root command with subcommands, do subcommand checking
+	if !cmd.HasParent() && len(args) > 0 {
+		return fmt.Errorf("unknown command %q for %q%s", args[0], cmd.CommandPath(), cmd.findSuggestions(args[0]))
+	}
+	return nil
+}
+
+// NoArgs returns an error if any args are included
+func NoArgs(cmd *Command, args []string) error {
+	if len(args) > 0 {
+		return fmt.Errorf("unknown command %q for %q", args[0], cmd.CommandPath())
+	}
+	return nil
+}
+
+// OnlyValidArgs returns an error if any args are not in the list of ValidArgs
+func OnlyValidArgs(cmd *Command, args []string) error {
+	if len(cmd.ValidArgs) > 0 {
+		for _, v := range args {
+			if !stringInSlice(v, cmd.ValidArgs) {
+				return fmt.Errorf("invalid argument %q for %q%s", v, cmd.CommandPath(), cmd.findSuggestions(args[0]))
+			}
+		}
+	}
+	return nil
+}
+
+func stringInSlice(a string, list []string) bool {
+	for _, b := range list {
+		if b == a {
+			return true
+		}
+	}
+	return false
+}
+
+// ArbitraryArgs never returns an error
+func ArbitraryArgs(cmd *Command, args []string) error {
+	return nil
+}
+
+// MinimumNArgs returns an error if there is not at least N args
+func MinimumNArgs(n int) PositionalArgs {
+	return func(cmd *Command, args []string) error {
+		if len(args) < n {
+			return fmt.Errorf("requires at least %d arg(s), only received %d", n, len(args))
+		}
+		return nil
+	}
+}
+
+// MaximumNArgs returns an error if there are more than N args
+func MaximumNArgs(n int) PositionalArgs {
+	return func(cmd *Command, args []string) error {
+		if len(args) > n {
+			return fmt.Errorf("accepts at most %d arg(s), received %d", n, len(args))
+		}
+		return nil
+	}
+}
+
+// ExactArgs returns an error if there are not exactly n args
+func ExactArgs(n int) PositionalArgs {
+	return func(cmd *Command, args []string) error {
+		if len(args) != n {
+			return fmt.Errorf("accepts %d arg(s), received %d", n, len(args))
+		}
+		return nil
+	}
+}
+
+// RangeArgs returns an error if the number of args is not within the expected range
+func RangeArgs(min int, max int) PositionalArgs {
+	return func(cmd *Command, args []string) error {
+		if len(args) < min || len(args) > max {
+			return fmt.Errorf("accepts between %d and %d arg(s), received %d", min, max, len(args))
+		}
+		return nil
+	}
+}

vendor/github.com/spf13/cobra/bash_completions.go

@@ -92,7 +92,7 @@ __handle_reply()
                     cur="${cur#*=}"
                     ${flags_completion[${index}]}
                     if [ -n "${ZSH_VERSION}" ]; then
-                        # zfs completion needs --flag= prefix
+                        # zsh completion needs --flag= prefix
                         eval "COMPREPLY=( \"\${COMPREPLY[@]/#/${flag}=}\" )"
                     fi
                 fi
@@ -132,7 +132,10 @@ __handle_reply()
         declare -F __custom_func >/dev/null && __custom_func
     fi
 
-    __ltrim_colon_completions "$cur"
+    # available in bash-completion >= 2, not always present on macOS
+    if declare -F __ltrim_colon_completions >/dev/null; then
+        __ltrim_colon_completions "$cur"
+    fi
 }
 
 # The arguments should be in the form "ext1|ext2|extn"
@@ -460,14 +463,14 @@ func gen(buf *bytes.Buffer, cmd *Command) {
 }
 
 // GenBashCompletion generates bash completion file and writes to the passed writer.
-func (cmd *Command) GenBashCompletion(w io.Writer) error {
+func (c *Command) GenBashCompletion(w io.Writer) error {
 	buf := new(bytes.Buffer)
-	writePreamble(buf, cmd.Name())
-	if len(cmd.BashCompletionFunction) > 0 {
-		buf.WriteString(cmd.BashCompletionFunction + "\n")
+	writePreamble(buf, c.Name())
+	if len(c.BashCompletionFunction) > 0 {
+		buf.WriteString(c.BashCompletionFunction + "\n")
 	}
-	gen(buf, cmd)
-	writePostscript(buf, cmd.Name())
+	gen(buf, c)
+	writePostscript(buf, c.Name())
 
 	_, err := buf.WriteTo(w)
 	return err
@@ -478,24 +481,24 @@ func nonCompletableFlag(flag *pflag.Flag) bool {
 }
 
 // GenBashCompletionFile generates bash completion file.
-func (cmd *Command) GenBashCompletionFile(filename string) error {
+func (c *Command) GenBashCompletionFile(filename string) error {
 	outFile, err := os.Create(filename)
 	if err != nil {
 		return err
 	}
 	defer outFile.Close()
 
-	return cmd.GenBashCompletion(outFile)
+	return c.GenBashCompletion(outFile)
 }
 
 // MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag, if it exists.
-func (cmd *Command) MarkFlagRequired(name string) error {
-	return MarkFlagRequired(cmd.Flags(), name)
+func (c *Command) MarkFlagRequired(name string) error {
+	return MarkFlagRequired(c.Flags(), name)
 }
 
 // MarkPersistentFlagRequired adds the BashCompOneRequiredFlag annotation to the named persistent flag, if it exists.
-func (cmd *Command) MarkPersistentFlagRequired(name string) error {
-	return MarkFlagRequired(cmd.PersistentFlags(), name)
+func (c *Command) MarkPersistentFlagRequired(name string) error {
+	return MarkFlagRequired(c.PersistentFlags(), name)
 }
 
 // MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag in the flag set, if it exists.
@@ -505,20 +508,20 @@ func MarkFlagRequired(flags *pflag.FlagSet, name string) error {
 
 // MarkFlagFilename adds the BashCompFilenameExt annotation to the named flag, if it exists.
 // Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided.
-func (cmd *Command) MarkFlagFilename(name string, extensions ...string) error {
-	return MarkFlagFilename(cmd.Flags(), name, extensions...)
+func (c *Command) MarkFlagFilename(name string, extensions ...string) error {
+	return MarkFlagFilename(c.Flags(), name, extensions...)
 }
 
 // MarkFlagCustom adds the BashCompCustom annotation to the named flag, if it exists.
 // Generated bash autocompletion will call the bash function f for the flag.
-func (cmd *Command) MarkFlagCustom(name string, f string) error {
-	return MarkFlagCustom(cmd.Flags(), name, f)
+func (c *Command) MarkFlagCustom(name string, f string) error {
+	return MarkFlagCustom(c.Flags(), name, f)
 }
 
 // MarkPersistentFlagFilename adds the BashCompFilenameExt annotation to the named persistent flag, if it exists.
 // Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided.
-func (cmd *Command) MarkPersistentFlagFilename(name string, extensions ...string) error {
-	return MarkFlagFilename(cmd.PersistentFlags(), name, extensions...)
+func (c *Command) MarkPersistentFlagFilename(name string, extensions ...string) error {
+	return MarkFlagFilename(c.PersistentFlags(), name, extensions...)
 }
 
 // MarkFlagFilename adds the BashCompFilenameExt annotation to the named flag in the flag set, if it exists.

vendor/github.com/spf13/cobra/bash_completions_test.go

@@ -2,7 +2,6 @@ package cobra
 
 import (
 	"bytes"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"strings"
@@ -118,6 +117,8 @@ func TestBashCompletions(t *testing.T) {
 	// check for filename extension flags
 	check(t, str, `flags_completion+=("_filedir")`)
 	// check for filename extension flags
+	check(t, str, `must_have_one_noun+=("three")`)
+	// check for filename extension flags
 	check(t, str, `flags_completion+=("__handle_filename_extension_flag json|yaml|yml")`)
 	// check for custom flags
 	check(t, str, `flags_completion+=("__complete_custom")`)
@@ -181,15 +182,12 @@ func BenchmarkBashCompletion(b *testing.B) {
 	cmdEcho.AddCommand(cmdTimes)
 	c.AddCommand(cmdEcho, cmdPrint, cmdDeprecated, cmdColon)
 
-	file, err := ioutil.TempFile("", "")
-	if err != nil {
-		b.Fatal(err)
-	}
-	defer os.Remove(file.Name())
+	buf := new(bytes.Buffer)
 
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		if err := c.GenBashCompletion(file); err != nil {
+		buf.Reset()
+		if err := c.GenBashCompletion(buf); err != nil {
 			b.Fatal(err)
 		}
 	}

vendor/github.com/spf13/cobra/cobra.go

@@ -47,6 +47,15 @@ var EnablePrefixMatching = false
 // To disable sorting, set it to false.
 var EnableCommandSorting = true
 
+// MousetrapHelpText enables an information splash screen on Windows
+// if the CLI is started from explorer.exe.
+// To disable the mousetrap, just set this variable to blank string ("").
+// Works only on Microsoft Windows.
+var MousetrapHelpText string = `This is a command line tool.
+
+You need to open cmd.exe and run it from there.
+`
+
 // AddTemplateFunc adds a template function that's available to Usage and Help
 // template generation.
 func AddTemplateFunc(name string, tmplFunc interface{}) {

vendor/github.com/spf13/cobra/cobra/cmd/add.go

@@ -1,172 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package cmd
-
-import (
-	"fmt"
-	"os"
-	"path/filepath"
-	"unicode"
-
-	"github.com/spf13/cobra"
-)
-
-func init() {
-	addCmd.Flags().StringVarP(&parentName, "parent", "p", "RootCmd", "name of parent command for this command")
-}
-
-var parentName string
-
-var addCmd = &cobra.Command{
-	Use:     "add [command name]",
-	Aliases: []string{"command"},
-	Short:   "Add a command to a Cobra Application",
-	Long: `Add (cobra add) will create a new command, with a license and
-the appropriate structure for a Cobra-based CLI application,
-and register it to its parent (default RootCmd).
-
-If you want your command to be public, pass in the command name
-with an initial uppercase letter.
-
-Example: cobra add server -> resulting in a new cmd/server.go`,
-
-	Run: func(cmd *cobra.Command, args []string) {
-		if len(args) < 1 {
-			er("add needs a name for the command")
-		}
-		wd, err := os.Getwd()
-		if err != nil {
-			er(err)
-		}
-		project := NewProjectFromPath(wd)
-
-		cmdName := validateCmdName(args[0])
-		cmdPath := filepath.Join(project.CmdPath(), cmdName+".go")
-		createCmdFile(project.License(), cmdPath, cmdName)
-
-		fmt.Fprintln(cmd.OutOrStdout(), cmdName, "created at", cmdPath)
-	},
-}
-
-// validateCmdName returns source without any dashes and underscore.
-// If there will be dash or underscore, next letter will be uppered.
-// It supports only ASCII (1-byte character) strings.
-// https://github.com/spf13/cobra/issues/269
-func validateCmdName(source string) string {
-	i := 0
-	l := len(source)
-	// The output is initialized on demand, then first dash or underscore
-	// occurs.
-	var output string
-
-	for i < l {
-		if source[i] == '-' || source[i] == '_' {
-			if output == "" {
-				output = source[:i]
-			}
-
-			// If it's last rune and it's dash or underscore,
-			// don't add it output and break the loop.
-			if i == l-1 {
-				break
-			}
-
-			// If next character is dash or underscore,
-			// just skip the current character.
-			if source[i+1] == '-' || source[i+1] == '_' {
-				i++
-				continue
-			}
-
-			// If the current character is dash or underscore,
-			// upper next letter and add to output.
-			output += string(unicode.ToUpper(rune(source[i+1])))
-			// We know, what source[i] is dash or underscore and source[i+1] is
-			// uppered character, so make i = i+2.
-			i += 2
-			continue
-		}
-
-		// If the current character isn't dash or underscore,
-		// just add it.
-		if output != "" {
-			output += string(source[i])
-		}
-		i++
-	}
-
-	if output == "" {
-		return source // source is initially valid name.
-	}
-	return output
-}
-
-func createCmdFile(license License, path, cmdName string) {
-	template := `{{comment .copyright}}
-{{comment .license}}
-
-package {{.cmdPackage}}
-
-import (
-	"fmt"
-
-	"github.com/spf13/cobra"
-)
-
-// {{.cmdName}}Cmd represents the {{.cmdName}} command
-var {{.cmdName}}Cmd = &cobra.Command{
-	Use:   "{{.cmdName}}",
-	Short: "A brief description of your command",
-	Long: ` + "`" + `A longer description that spans multiple lines and likely contains examples
-and usage of using your command. For example:
-
-Cobra is a CLI library for Go that empowers applications.
-This application is a tool to generate the needed files
-to quickly create a Cobra application.` + "`" + `,
-	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("{{.cmdName}} called")
-	},
-}
-
-func init() {
-	{{.parentName}}.AddCommand({{.cmdName}}Cmd)
-
-	// Here you will define your flags and configuration settings.
-
-	// Cobra supports Persistent Flags which will work for this command
-	// and all subcommands, e.g.:
-	// {{.cmdName}}Cmd.PersistentFlags().String("foo", "", "A help for foo")
-
-	// Cobra supports local flags which will only run when this command
-	// is called directly, e.g.:
-	// {{.cmdName}}Cmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
-}
-`
-
-	data := make(map[string]interface{})
-	data["copyright"] = copyrightLine()
-	data["license"] = license.Header
-	data["cmdPackage"] = filepath.Base(filepath.Dir(path)) // last dir of path
-	data["parentName"] = parentName
-	data["cmdName"] = cmdName
-
-	cmdScript, err := executeTemplate(template, data)
-	if err != nil {
-		er(err)
-	}
-	err = writeStringToFile(path, cmdScript)
-	if err != nil {
-		er(err)
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/add_test.go

@@ -1,100 +0,0 @@
-package cmd
-
-import (
-	"errors"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"testing"
-)
-
-// TestGoldenAddCmd initializes the project "github.com/spf13/testproject"
-// in GOPATH, adds "test" command
-// and compares the content of all files in cmd directory of testproject
-// with appropriate golden files.
-// Use -update to update existing golden files.
-func TestGoldenAddCmd(t *testing.T) {
-	projectName := "github.com/spf13/testproject"
-	project := NewProject(projectName)
-
-	// Initialize the project at first.
-	initializeProject(project)
-	defer os.RemoveAll(project.AbsPath())
-
-	// Then add the "test" command.
-	cmdName := "test"
-	cmdPath := filepath.Join(project.CmdPath(), cmdName+".go")
-	createCmdFile(project.License(), cmdPath, cmdName)
-
-	expectedFiles := []string{".", "root.go", "test.go"}
-	gotFiles := []string{}
-
-	// Check project file hierarchy and compare the content of every single file
-	// with appropriate golden file.
-	err := filepath.Walk(project.CmdPath(), func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-
-		// Make path relative to project.CmdPath().
-		// E.g. path = "/home/user/go/src/github.com/spf13/testproject/cmd/root.go"
-		// then it returns just "root.go".
-		relPath, err := filepath.Rel(project.CmdPath(), path)
-		if err != nil {
-			return err
-		}
-		relPath = filepath.ToSlash(relPath)
-		gotFiles = append(gotFiles, relPath)
-		goldenPath := filepath.Join("testdata", filepath.Base(path)+".golden")
-
-		switch relPath {
-		// Know directories.
-		case ".":
-			return nil
-		// Known files.
-		case "root.go", "test.go":
-			if *update {
-				got, err := ioutil.ReadFile(path)
-				if err != nil {
-					return err
-				}
-				ioutil.WriteFile(goldenPath, got, 0644)
-			}
-			return compareFiles(path, goldenPath)
-		}
-		// Unknown file.
-		return errors.New("unknown file: " + path)
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Check if some files lack.
-	if err := checkLackFiles(expectedFiles, gotFiles); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestValidateCmdName(t *testing.T) {
-	testCases := []struct {
-		input    string
-		expected string
-	}{
-		{"cmdName", "cmdName"},
-		{"cmd_name", "cmdName"},
-		{"cmd-name", "cmdName"},
-		{"cmd______Name", "cmdName"},
-		{"cmd------Name", "cmdName"},
-		{"cmd______name", "cmdName"},
-		{"cmd------name", "cmdName"},
-		{"cmdName-----", "cmdName"},
-		{"cmdname-", "cmdname"},
-	}
-
-	for _, testCase := range testCases {
-		got := validateCmdName(testCase.input)
-		if testCase.expected != got {
-			t.Errorf("Expected %q, got %q", testCase.expected, got)
-		}
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/golden_test.go

@@ -1,77 +0,0 @@
-package cmd
-
-import (
-	"bytes"
-	"errors"
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"os/exec"
-)
-
-var update = flag.Bool("update", false, "update .golden files")
-
-func init() {
-	// Mute commands.
-	addCmd.SetOutput(new(bytes.Buffer))
-	initCmd.SetOutput(new(bytes.Buffer))
-}
-
-// compareFiles compares the content of files with pathA and pathB.
-// If contents are equal, it returns nil.
-// If not, it returns which files are not equal
-// and diff (if system has diff command) between these files.
-func compareFiles(pathA, pathB string) error {
-	contentA, err := ioutil.ReadFile(pathA)
-	if err != nil {
-		return err
-	}
-	contentB, err := ioutil.ReadFile(pathB)
-	if err != nil {
-		return err
-	}
-	if !bytes.Equal(contentA, contentB) {
-		output := new(bytes.Buffer)
-		output.WriteString(fmt.Sprintf("%q and %q are not equal!\n\n", pathA, pathB))
-
-		diffPath, err := exec.LookPath("diff")
-		if err != nil {
-			// Don't execute diff if it can't be found.
-			return nil
-		}
-		diffCmd := exec.Command(diffPath, pathA, pathB)
-		diffCmd.Stdout = output
-		diffCmd.Stderr = output
-
-		output.WriteString("$ diff " + pathA + " " + pathB + "\n")
-		if err := diffCmd.Run(); err != nil {
-			output.WriteString("\n" + err.Error())
-		}
-		return errors.New(output.String())
-	}
-	return nil
-}
-
-// checkLackFiles checks if all elements of expected are in got.
-func checkLackFiles(expected, got []string) error {
-	lacks := make([]string, 0, len(expected))
-	for _, ev := range expected {
-		if !stringInStringSlice(ev, got) {
-			lacks = append(lacks, ev)
-		}
-	}
-	if len(lacks) > 0 {
-		return fmt.Errorf("Lack %v file(s): %v", len(lacks), lacks)
-	}
-	return nil
-}
-
-// stringInStringSlice checks if s is an element of slice.
-func stringInStringSlice(s string, slice []string) bool {
-	for _, v := range slice {
-		if s == v {
-			return true
-		}
-	}
-	return false
-}

vendor/github.com/spf13/cobra/cobra/cmd/helpers.go

@@ -1,140 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package cmd
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"strings"
-	"text/template"
-)
-
-var cmdDirs = [...]string{"cmd", "cmds", "command", "commands"}
-var srcPaths []string
-
-func init() {
-	// Initialize srcPaths.
-	envGoPath := os.Getenv("GOPATH")
-	goPaths := filepath.SplitList(envGoPath)
-	if len(goPaths) == 0 {
-		er("$GOPATH is not set")
-	}
-	srcPaths = make([]string, 0, len(goPaths))
-	for _, goPath := range goPaths {
-		srcPaths = append(srcPaths, filepath.Join(goPath, "src"))
-	}
-}
-
-func er(msg interface{}) {
-	fmt.Println("Error:", msg)
-	os.Exit(1)
-}
-
-// isEmpty checks if a given path is empty.
-func isEmpty(path string) bool {
-	fi, err := os.Stat(path)
-	if err != nil {
-		er(err)
-	}
-	if fi.IsDir() {
-		f, err := os.Open(path)
-		if err != nil {
-			er(err)
-		}
-		defer f.Close()
-		dirs, err := f.Readdirnames(1)
-		if err != nil && err != io.EOF {
-			er(err)
-		}
-		return len(dirs) == 0
-	}
-	return fi.Size() == 0
-}
-
-// exists checks if a file or directory exists.
-func exists(path string) bool {
-	if path == "" {
-		return false
-	}
-	_, err := os.Stat(path)
-	if err == nil {
-		return true
-	}
-	if !os.IsNotExist(err) {
-		er(err)
-	}
-	return false
-}
-
-func executeTemplate(tmplStr string, data interface{}) (string, error) {
-	tmpl, err := template.New("").Funcs(template.FuncMap{"comment": commentifyString}).Parse(tmplStr)
-	if err != nil {
-		return "", err
-	}
-
-	buf := new(bytes.Buffer)
-	err = tmpl.Execute(buf, data)
-	return buf.String(), err
-}
-
-func writeStringToFile(path string, s string) error {
-	return writeToFile(path, strings.NewReader(s))
-}
-
-// writeToFile writes r to file with path only
-// if file/directory on given path doesn't exist.
-// If file/directory exists on given path, then
-// it terminates app and prints an appropriate error.
-func writeToFile(path string, r io.Reader) error {
-	if exists(path) {
-		return fmt.Errorf("%v already exists", path)
-	}
-
-	dir := filepath.Dir(path)
-	if dir != "" {
-		if err := os.MkdirAll(dir, 0777); err != nil {
-			return err
-		}
-	}
-
-	file, err := os.Create(path)
-	if err != nil {
-		return err
-	}
-	defer file.Close()
-
-	_, err = io.Copy(file, r)
-	return err
-}
-
-// commentfyString comments every line of in.
-func commentifyString(in string) string {
-	var newlines []string
-	lines := strings.Split(in, "\n")
-	for _, line := range lines {
-		if strings.HasPrefix(line, "//") {
-			newlines = append(newlines, line)
-		} else {
-			if line == "" {
-				newlines = append(newlines, "//")
-			} else {
-				newlines = append(newlines, "// "+line)
-			}
-		}
-	}
-	return strings.Join(newlines, "\n")
-}

vendor/github.com/spf13/cobra/cobra/cmd/init.go

@@ -1,234 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package cmd
-
-import (
-	"fmt"
-	"os"
-	"path"
-	"path/filepath"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/viper"
-)
-
-var initCmd = &cobra.Command{
-	Use:     "init [name]",
-	Aliases: []string{"initialize", "initialise", "create"},
-	Short:   "Initialize a Cobra Application",
-	Long: `Initialize (cobra init) will create a new application, with a license
-and the appropriate structure for a Cobra-based CLI application.
-
-  * If a name is provided, it will be created in the current directory;
-  * If no name is provided, the current directory will be assumed;
-  * If a relative path is provided, it will be created inside $GOPATH
-    (e.g. github.com/spf13/hugo);
-  * If an absolute path is provided, it will be created;
-  * If the directory already exists but is empty, it will be used.
-
-Init will not use an existing directory with contents.`,
-
-	Run: func(cmd *cobra.Command, args []string) {
-		wd, err := os.Getwd()
-		if err != nil {
-			er(err)
-		}
-
-		var project *Project
-		if len(args) == 0 {
-			project = NewProjectFromPath(wd)
-		} else if len(args) == 1 {
-			arg := args[0]
-			if arg[0] == '.' {
-				arg = filepath.Join(wd, arg)
-			}
-			if filepath.IsAbs(arg) {
-				project = NewProjectFromPath(arg)
-			} else {
-				project = NewProject(arg)
-			}
-		} else {
-			er("please enter the name")
-		}
-
-		initializeProject(project)
-
-		fmt.Fprintln(cmd.OutOrStdout(), `Your Cobra application is ready at
-`+project.AbsPath()+`.
-
-Give it a try by going there and running `+"`go run main.go`."+`
-Add commands to it by running `+"`cobra add [cmdname]`.")
-	},
-}
-
-func initializeProject(project *Project) {
-	if !exists(project.AbsPath()) { // If path doesn't yet exist, create it
-		err := os.MkdirAll(project.AbsPath(), os.ModePerm)
-		if err != nil {
-			er(err)
-		}
-	} else if !isEmpty(project.AbsPath()) { // If path exists and is not empty don't use it
-		er("Cobra will not create a new project in a non empty directory: " + project.AbsPath())
-	}
-
-	// We have a directory and it's empty. Time to initialize it.
-	createLicenseFile(project.License(), project.AbsPath())
-	createMainFile(project)
-	createRootCmdFile(project)
-}
-
-func createLicenseFile(license License, path string) {
-	data := make(map[string]interface{})
-	data["copyright"] = copyrightLine()
-
-	// Generate license template from text and data.
-	text, err := executeTemplate(license.Text, data)
-	if err != nil {
-		er(err)
-	}
-
-	// Write license text to LICENSE file.
-	err = writeStringToFile(filepath.Join(path, "LICENSE"), text)
-	if err != nil {
-		er(err)
-	}
-}
-
-func createMainFile(project *Project) {
-	mainTemplate := `{{ comment .copyright }}
-{{if .license}}{{ comment .license }}{{end}}
-
-package main
-
-import "{{ .importpath }}"
-
-func main() {
-	cmd.Execute()
-}
-`
-	data := make(map[string]interface{})
-	data["copyright"] = copyrightLine()
-	data["license"] = project.License().Header
-	data["importpath"] = path.Join(project.Name(), filepath.Base(project.CmdPath()))
-
-	mainScript, err := executeTemplate(mainTemplate, data)
-	if err != nil {
-		er(err)
-	}
-
-	err = writeStringToFile(filepath.Join(project.AbsPath(), "main.go"), mainScript)
-	if err != nil {
-		er(err)
-	}
-}
-
-func createRootCmdFile(project *Project) {
-	template := `{{comment .copyright}}
-{{if .license}}{{comment .license}}{{end}}
-
-package cmd
-
-import (
-	"fmt"
-	"os"
-
-	homedir "github.com/mitchellh/go-homedir"
-	"github.com/spf13/cobra"
-{{if .viper}}	"github.com/spf13/viper"{{end}}
-)
-
-{{if .viper}}var cfgFile string{{end}}
-
-// RootCmd represents the base command when called without any subcommands
-var RootCmd = &cobra.Command{
-	Use:   "{{.appName}}",
-	Short: "A brief description of your application",
-	Long: ` + "`" + `A longer description that spans multiple lines and likely contains
-examples and usage of using your application. For example:
-
-Cobra is a CLI library for Go that empowers applications.
-This application is a tool to generate the needed files
-to quickly create a Cobra application.` + "`" + `,
-	// Uncomment the following line if your bare application
-	// has an action associated with it:
-	//	Run: func(cmd *cobra.Command, args []string) { },
-}
-
-// Execute adds all child commands to the root command sets flags appropriately.
-// This is called by main.main(). It only needs to happen once to the rootCmd.
-func Execute() {
-	if err := RootCmd.Execute(); err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
-}
-
-func init() {
-{{if .viper}}	cobra.OnInitialize(initConfig){{end}}
-
-	// Here you will define your flags and configuration settings.
-	// Cobra supports persistent flags, which, if defined here,
-	// will be global for your application.{{ if .viper }}
-	RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.{{ .appName }}.yaml)"){{ else }}
-	// RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.{{ .appName }}.yaml)"){{ end }}
-
-	// Cobra also supports local flags, which will only run
-	// when this action is called directly.
-	RootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
-}{{ if .viper }}
-
-// initConfig reads in config file and ENV variables if set.
-func initConfig() {
-	if cfgFile != "" {
-		// Use config file from the flag.
-		viper.SetConfigFile(cfgFile)
-	} else {
-		// Find home directory.
-		home, err := homedir.Dir()
-		if err != nil {
-			fmt.Println(err)
-			os.Exit(1)
-		}
-
-		// Search config in home directory with name ".{{ .appName }}" (without extension).
-		viper.AddConfigPath(home)
-		viper.SetConfigName(".{{ .appName }}")
-	}
-
-	viper.AutomaticEnv() // read in environment variables that match
-
-	// If a config file is found, read it in.
-	if err := viper.ReadInConfig(); err == nil {
-		fmt.Println("Using config file:", viper.ConfigFileUsed())
-	}
-}{{ end }}
-`
-
-	data := make(map[string]interface{})
-	data["copyright"] = copyrightLine()
-	data["viper"] = viper.GetBool("useViper")
-	data["license"] = project.License().Header
-	data["appName"] = path.Base(project.Name())
-
-	rootCmdScript, err := executeTemplate(template, data)
-	if err != nil {
-		er(err)
-	}
-
-	err = writeStringToFile(filepath.Join(project.CmdPath(), "root.go"), rootCmdScript)
-	if err != nil {
-		er(err)
-	}
-
-}

vendor/github.com/spf13/cobra/cobra/cmd/init_test.go

@@ -1,74 +0,0 @@
-package cmd
-
-import (
-	"errors"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"testing"
-)
-
-// TestGoldenInitCmd initializes the project "github.com/spf13/testproject"
-// in GOPATH and compares the content of files in initialized project with
-// appropriate golden files ("testdata/*.golden").
-// Use -update to update existing golden files.
-func TestGoldenInitCmd(t *testing.T) {
-	projectName := "github.com/spf13/testproject"
-	project := NewProject(projectName)
-	defer os.RemoveAll(project.AbsPath())
-
-	os.Args = []string{"cobra", "init", projectName}
-	if err := rootCmd.Execute(); err != nil {
-		t.Fatal("Error by execution:", err)
-	}
-
-	expectedFiles := []string{".", "cmd", "LICENSE", "main.go", "cmd/root.go"}
-	gotFiles := []string{}
-
-	// Check project file hierarchy and compare the content of every single file
-	// with appropriate golden file.
-	err := filepath.Walk(project.AbsPath(), func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-
-		// Make path relative to project.AbsPath().
-		// E.g. path = "/home/user/go/src/github.com/spf13/testproject/cmd/root.go"
-		// then it returns just "cmd/root.go".
-		relPath, err := filepath.Rel(project.AbsPath(), path)
-		if err != nil {
-			return err
-		}
-		relPath = filepath.ToSlash(relPath)
-		gotFiles = append(gotFiles, relPath)
-		goldenPath := filepath.Join("testdata", filepath.Base(path)+".golden")
-
-		switch relPath {
-		// Know directories.
-		case ".", "cmd":
-			return nil
-		// Known files.
-		case "LICENSE", "main.go", "cmd/root.go":
-			if *update {
-				got, err := ioutil.ReadFile(path)
-				if err != nil {
-					return err
-				}
-				if err := ioutil.WriteFile(goldenPath, got, 0644); err != nil {
-					t.Fatal("Error while updating file:", err)
-				}
-			}
-			return compareFiles(path, goldenPath)
-		}
-		// Unknown file.
-		return errors.New("unknown file: " + path)
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// Check if some files lack.
-	if err := checkLackFiles(expectedFiles, gotFiles); err != nil {
-		t.Fatal(err)
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/license_agpl.go

@@ -1,684 +0,0 @@
-package cmd
-
-func initAgpl() {
-	Licenses["agpl"] = License{
-		Name:            "GNU Affero General Public License",
-		PossibleMatches: []string{"agpl", "affero gpl", "gnu agpl"},
-		Header: `{{.copyright}}
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU Affero General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Affero General Public License for more details.
-
-You should have received a copy of the GNU Affero General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.`,
-		Text: `                    GNU AFFERO GENERAL PUBLIC LICENSE
-                       Version 3, 19 November 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The GNU Affero General Public License is a free, copyleft license for
-software and other kinds of works, specifically designed to ensure
-cooperation with the community in the case of network server software.
-
-  The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works.  By contrast,
-our General Public Licenses are intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-them if you wish), that you receive source code or can get it if you
-want it, that you can change the software or use pieces of it in new
-free programs, and that you know you can do these things.
-
-  Developers that use our General Public Licenses protect your rights
-with two steps: (1) assert copyright on the software, and (2) offer
-you this License which gives you legal permission to copy, distribute
-and/or modify the software.
-
-  A secondary benefit of defending all users' freedom is that
-improvements made in alternate versions of the program, if they
-receive widespread use, become available for other developers to
-incorporate.  Many developers of free software are heartened and
-encouraged by the resulting cooperation.  However, in the case of
-software used on network servers, this result may fail to come about.
-The GNU General Public License permits making a modified version and
-letting the public access it on a server without ever releasing its
-source code to the public.
-
-  The GNU Affero General Public License is designed specifically to
-ensure that, in such cases, the modified source code becomes available
-to the community.  It requires the operator of a network server to
-provide the source code of the modified version running there to the
-users of that server.  Therefore, public use of a modified version, on
-a publicly accessible server, gives the public access to the source
-code of the modified version.
-
-  An older license, called the Affero General Public License and
-published by Affero, was designed to accomplish similar goals.  This is
-a different license, not a version of the Affero GPL, but Affero has
-released a new version of the Affero GPL which permits relicensing under
-this license.
-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-                       TERMS AND CONDITIONS
-
-  0. Definitions.
-
-  "This License" refers to version 3 of the GNU Affero General Public License.
-
-  "Copyright" also means copyright-like laws that apply to other kinds of
-works, such as semiconductor masks.
-
-  "The Program" refers to any copyrightable work licensed under this
-License.  Each licensee is addressed as "you".  "Licensees" and
-"recipients" may be individuals or organizations.
-
-  To "modify" a work means to copy from or adapt all or part of the work
-in a fashion requiring copyright permission, other than the making of an
-exact copy.  The resulting work is called a "modified version" of the
-earlier work or a work "based on" the earlier work.
-
-  A "covered work" means either the unmodified Program or a work based
-on the Program.
-
-  To "propagate" a work means to do anything with it that, without
-permission, would make you directly or secondarily liable for
-infringement under applicable copyright law, except executing it on a
-computer or modifying a private copy.  Propagation includes copying,
-distribution (with or without modification), making available to the
-public, and in some countries other activities as well.
-
-  To "convey" a work means any kind of propagation that enables other
-parties to make or receive copies.  Mere interaction with a user through
-a computer network, with no transfer of a copy, is not conveying.
-
-  An interactive user interface displays "Appropriate Legal Notices"
-to the extent that it includes a convenient and prominently visible
-feature that (1) displays an appropriate copyright notice, and (2)
-tells the user that there is no warranty for the work (except to the
-extent that warranties are provided), that licensees may convey the
-work under this License, and how to view a copy of this License.  If
-the interface presents a list of user commands or options, such as a
-menu, a prominent item in the list meets this criterion.
-
-  1. Source Code.
-
-  The "source code" for a work means the preferred form of the work
-for making modifications to it.  "Object code" means any non-source
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-is widely used among developers working in that language.
-
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-than the work as a whole, that (a) is included in the normal form of
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-"Major Component", in this context, means a major essential component
-(kernel, window system, and so on) of the specific operating system
-(if any) on which the executable work runs, or a compiler used to
-produce the work, or an object code interpreter used to run it.
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-such as by intimate data communication or control flow between those
-subprograms and other parts of the work.
-
-  The Corresponding Source need not include anything that users
-can regenerate automatically from other parts of the Corresponding
-Source.
-
-  The Corresponding Source for a work in source code form is that
-same work.
-
-  2. Basic Permissions.
-
-  All rights granted under this License are granted for the term of
-copyright on the Program, and are irrevocable provided the stated
-conditions are met.  This License explicitly affirms your unlimited
-permission to run the unmodified Program.  The output from running a
-covered work is covered by this License only if the output, given its
-content, constitutes a covered work.  This License acknowledges your
-rights of fair use or other equivalent, as provided by copyright law.
-
-  You may make, run and propagate covered works that you do not
-convey, without conditions so long as your license otherwise remains
-in force.  You may convey covered works to others for the sole purpose
-of having them make modifications exclusively for you, or provide you
-with facilities for running those works, provided that you comply with
-the terms of this License in conveying all material for which you do
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-for you must do so exclusively on your behalf, under your direction
-and control, on terms that prohibit them from making any copies of
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-  Conveying under any other circumstances is permitted solely under
-the conditions stated below.  Sublicensing is not allowed; section 10
-makes it unnecessary.
-
-  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
-
-  No covered work shall be deemed part of an effective technological
-measure under any applicable law fulfilling obligations under article
-11 of the WIPO copyright treaty adopted on 20 December 1996, or
-similar laws prohibiting or restricting circumvention of such
-measures.
-
-  When you convey a covered work, you waive any legal power to forbid
-circumvention of technological measures to the extent such circumvention
-is effected by exercising rights under this License with respect to
-the covered work, and you disclaim any intention to limit operation or
-modification of the work as a means of enforcing, against the work's
-users, your or third parties' legal rights to forbid circumvention of
-technological measures.
-
-  4. Conveying Verbatim Copies.
-
-  You may convey verbatim copies of the Program's source code as you
-receive it, in any medium, provided that you conspicuously and
-appropriately publish on each copy an appropriate copyright notice;
-keep intact all notices stating that this License and any
-non-permissive terms added in accord with section 7 apply to the code;
-keep intact all notices of the absence of any warranty; and give all
-recipients a copy of this License along with the Program.
-
-  You may charge any price or no price for each copy that you convey,
-and you may offer support or warranty protection for a fee.
-
-  5. Conveying Modified Source Versions.
-
-  You may convey a work based on the Program, or the modifications to
-produce it from the Program, in the form of source code under the
-terms of section 4, provided that you also meet all of these conditions:
-
-    a) The work must carry prominent notices stating that you modified
-    it, and giving a relevant date.
-
-    b) The work must carry prominent notices stating that it is
-    released under this License and any conditions added under section
-    7.  This requirement modifies the requirement in section 4 to
-    "keep intact all notices".
-
-    c) You must license the entire work, as a whole, under this
-    License to anyone who comes into possession of a copy.  This
-    License will therefore apply, along with any applicable section 7
-    additional terms, to the whole of the work, and all its parts,
-    regardless of how they are packaged.  This License gives no
-    permission to license the work in any other way, but it does not
-    invalidate such permission if you have separately received it.
-
-    d) If the work has interactive user interfaces, each must display
-    Appropriate Legal Notices; however, if the Program has interactive
-    interfaces that do not display Appropriate Legal Notices, your
-    work need not make them do so.
-
-  A compilation of a covered work with other separate and independent
-works, which are not by their nature extensions of the covered work,
-and which are not combined with it such as to form a larger program,
-in or on a volume of a storage or distribution medium, is called an
-"aggregate" if the compilation and its resulting copyright are not
-used to limit the access or legal rights of the compilation's users
-beyond what the individual works permit.  Inclusion of a covered work
-in an aggregate does not cause this License to apply to the other
-parts of the aggregate.
-
-  6. Conveying Non-Source Forms.
-
-  You may convey a covered work in object code form under the terms
-of sections 4 and 5, provided that you also convey the
-machine-readable Corresponding Source under the terms of this License,
-in one of these ways:
-
-    a) Convey the object code in, or embodied in, a physical product
-    (including a physical distribution medium), accompanied by the
-    Corresponding Source fixed on a durable physical medium
-    customarily used for software interchange.
-
-    b) Convey the object code in, or embodied in, a physical product
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-    written offer, valid for at least three years and valid for as
-    long as you offer spare parts or customer support for that product
-    model, to give anyone who possesses the object code either (1) a
-    copy of the Corresponding Source for all the software in the
-    product that is covered by this License, on a durable physical
-    medium customarily used for software interchange, for a price no
-    more than your reasonable cost of physically performing this
-    conveying of source, or (2) access to copy the
-    Corresponding Source from a network server at no charge.
-
-    c) Convey individual copies of the object code with a copy of the
-    written offer to provide the Corresponding Source.  This
-    alternative is allowed only occasionally and noncommercially, and
-    only if you received the object code with such an offer, in accord
-    with subsection 6b.
-
-    d) Convey the object code by offering access from a designated
-    place (gratis or for a charge), and offer equivalent access to the
-    Corresponding Source in the same way through the same place at no
-    further charge.  You need not require recipients to copy the
-    Corresponding Source along with the object code.  If the place to
-    copy the object code is a network server, the Corresponding Source
-    may be on a different server (operated by you or a third party)
-    that supports equivalent copying facilities, provided you maintain
-    clear directions next to the object code saying where to find the
-    Corresponding Source.  Regardless of what server hosts the
-    Corresponding Source, you remain obligated to ensure that it is
-    available for as long as needed to satisfy these requirements.
-
-    e) Convey the object code using peer-to-peer transmission, provided
-    you inform other peers where the object code and Corresponding
-    Source of the work are being offered to the general public at no
-    charge under subsection 6d.
-
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-from the Corresponding Source as a System Library, need not be
-included in conveying the object code work.
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-  A "User Product" is either (1) a "consumer product", which means any
-tangible personal property which is normally used for personal, family,
-or household purposes, or (2) anything designed or sold for incorporation
-into a dwelling.  In determining whether a product is a consumer product,
-doubtful cases shall be resolved in favor of coverage.  For a particular
-product received by a particular user, "normally used" refers to a
-typical or common use of that class of product, regardless of the status
-of the particular user or of the way in which the particular user
-actually uses, or expects or is expected to use, the product.  A product
-is a consumer product regardless of whether the product has substantial
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-and execute modified versions of a covered work in that User Product from
-a modified version of its Corresponding Source.  The information must
-suffice to ensure that the continued functioning of the modified object
-code is in no case prevented or interfered with solely because
-modification has been made.
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-specifically for use in, a User Product, and the conveying occurs as
-part of a transaction in which the right of possession and use of the
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-fixed term (regardless of how the transaction is characterized), the
-Corresponding Source conveyed under this section must be accompanied
-by the Installation Information.  But this requirement does not apply
-if neither you nor any third party retains the ability to install
-modified object code on the User Product (for example, the work has
-been installed in ROM).
-
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-adversely affects the operation of the network or violates the rules and
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-in accord with this section must be in a format that is publicly
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-source code form), and must require no special password or key for
-unpacking, reading or copying.
-
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-
-  "Additional permissions" are terms that supplement the terms of this
-License by making exceptions from one or more of its conditions.
-Additional permissions that are applicable to the entire Program shall
-be treated as though they were included in this License, to the extent
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-apply only to part of the Program, that part may be used separately
-under those permissions, but the entire Program remains governed by
-this License without regard to the additional permissions.
-
-  When you convey a copy of a covered work, you may at your option
-remove any additional permissions from that copy, or from any part of
-it.  (Additional permissions may be written to require their own
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-additional permissions on material, added by you to a covered work,
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-add to a covered work, you may (if authorized by the copyright holders of
-that material) supplement the terms of this License with terms:
-
-    a) Disclaiming warranty or limiting liability differently from the
-    terms of sections 15 and 16 of this License; or
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-
-    c) Prohibiting misrepresentation of the origin of that material, or
-    requiring that modified versions of such material be marked in
-    reasonable ways as different from the original version; or
-
-    d) Limiting the use for publicity purposes of names of licensors or
-    authors of the material; or
-
-    e) Declining to grant rights under trademark law for use of some
-    trade names, trademarks, or service marks; or
-
-    f) Requiring indemnification of licensors and authors of that
-    material by anyone who conveys the material (or modified versions of
-    it) with contractual assumptions of liability to the recipient, for
-    any liability that these contractual assumptions directly impose on
-    those licensors and authors.
-
-  All other non-permissive additional terms are considered "further
-restrictions" within the meaning of section 10.  If the Program as you
-received it, or any part of it, contains a notice stating that it is
-governed by this License along with a term that is a further
-restriction, you may remove that term.  If a license document contains
-a further restriction but permits relicensing or conveying under this
-License, you may add to a covered work material governed by the terms
-of that license document, provided that the further restriction does
-not survive such relicensing or conveying.
-
-  If you add terms to a covered work in accord with this section, you
-must place, in the relevant source files, a statement of the
-additional terms that apply to those files, or a notice indicating
-where to find the applicable terms.
-
-  Additional terms, permissive or non-permissive, may be stated in the
-form of a separately written license, or stated as exceptions;
-the above requirements apply either way.
-
-  8. Termination.
-
-  You may not propagate or modify a covered work except as expressly
-provided under this License.  Any attempt otherwise to propagate or
-modify it is void, and will automatically terminate your rights under
-this License (including any patent licenses granted under the third
-paragraph of section 11).
-
-  However, if you cease all violation of this License, then your
-license from a particular copyright holder is reinstated (a)
-provisionally, unless and until the copyright holder explicitly and
-finally terminates your license, and (b) permanently, if the copyright
-holder fails to notify you of the violation by some reasonable means
-prior to 60 days after the cessation.
-
-  Moreover, your license from a particular copyright holder is
-reinstated permanently if the copyright holder notifies you of the
-violation by some reasonable means, this is the first time you have
-received notice of violation of this License (for any work) from that
-copyright holder, and you cure the violation prior to 30 days after
-your receipt of the notice.
-
-  Termination of your rights under this section does not terminate the
-licenses of parties who have received copies or rights from you under
-this License.  If your rights have been terminated and not permanently
-reinstated, you do not qualify to receive new licenses for the same
-material under section 10.
-
-  9. Acceptance Not Required for Having Copies.
-
-  You are not required to accept this License in order to receive or
-run a copy of the Program.  Ancillary propagation of a covered work
-occurring solely as a consequence of using peer-to-peer transmission
-to receive a copy likewise does not require acceptance.  However,
-nothing other than this License grants you permission to propagate or
-modify any covered work.  These actions infringe copyright if you do
-not accept this License.  Therefore, by modifying or propagating a
-covered work, you indicate your acceptance of this License to do so.
-
-  10. Automatic Licensing of Downstream Recipients.
-
-  Each time you convey a covered work, the recipient automatically
-receives a license from the original licensors, to run, modify and
-propagate that work, subject to this License.  You are not responsible
-for enforcing compliance by third parties with this License.
-
-  An "entity transaction" is a transaction transferring control of an
-organization, or substantially all assets of one, or subdividing an
-organization, or merging organizations.  If propagation of a covered
-work results from an entity transaction, each party to that
-transaction who receives a copy of the work also receives whatever
-licenses to the work the party's predecessor in interest had or could
-give under the previous paragraph, plus a right to possession of the
-Corresponding Source of the work from the predecessor in interest, if
-the predecessor has it or can get it with reasonable efforts.
-
-  You may not impose any further restrictions on the exercise of the
-rights granted or affirmed under this License.  For example, you may
-not impose a license fee, royalty, or other charge for exercise of
-rights granted under this License, and you may not initiate litigation
-(including a cross-claim or counterclaim in a lawsuit) alleging that
-any patent claim is infringed by making, using, selling, offering for
-sale, or importing the Program or any portion of it.
-
-  11. Patents.
-
-  A "contributor" is a copyright holder who authorizes use under this
-License of the Program or a work on which the Program is based.  The
-work thus licensed is called the contributor's "contributor version".
-
-  A contributor's "essential patent claims" are all patent claims
-owned or controlled by the contributor, whether already acquired or
-hereafter acquired, that would be infringed by some manner, permitted
-by this License, of making, using, or selling its contributor version,
-but do not include claims that would be infringed only as a
-consequence of further modification of the contributor version.  For
-purposes of this definition, "control" includes the right to grant
-patent sublicenses in a manner consistent with the requirements of
-this License.
-
-  Each contributor grants you a non-exclusive, worldwide, royalty-free
-patent license under the contributor's essential patent claims, to
-make, use, sell, offer for sale, import and otherwise run, modify and
-propagate the contents of its contributor version.
-
-  In the following three paragraphs, a "patent license" is any express
-agreement or commitment, however denominated, not to enforce a patent
-(such as an express permission to practice a patent or covenant not to
-sue for patent infringement).  To "grant" such a patent license to a
-party means to make such an agreement or commitment not to enforce a
-patent against the party.
-
-  If you convey a covered work, knowingly relying on a patent license,
-and the Corresponding Source of the work is not available for anyone
-to copy, free of charge and under the terms of this License, through a
-publicly available network server or other readily accessible means,
-then you must either (1) cause the Corresponding Source to be so
-available, or (2) arrange to deprive yourself of the benefit of the
-patent license for this particular work, or (3) arrange, in a manner
-consistent with the requirements of this License, to extend the patent
-license to downstream recipients.  "Knowingly relying" means you have
-actual knowledge that, but for the patent license, your conveying the
-covered work in a country, or your recipient's use of the covered work
-in a country, would infringe one or more identifiable patents in that
-country that you have reason to believe are valid.
-
-  If, pursuant to or in connection with a single transaction or
-arrangement, you convey, or propagate by procuring conveyance of, a
-covered work, and grant a patent license to some of the parties
-receiving the covered work authorizing them to use, propagate, modify
-or convey a specific copy of the covered work, then the patent license
-you grant is automatically extended to all recipients of the covered
-work and works based on it.
-
-  A patent license is "discriminatory" if it does not include within
-the scope of its coverage, prohibits the exercise of, or is
-conditioned on the non-exercise of one or more of the rights that are
-specifically granted under this License.  You may not convey a covered
-work if you are a party to an arrangement with a third party that is
-in the business of distributing software, under which you make payment
-to the third party based on the extent of your activity of conveying
-the work, and under which the third party grants, to any of the
-parties who would receive the covered work from you, a discriminatory
-patent license (a) in connection with copies of the covered work
-conveyed by you (or copies made from those copies), or (b) primarily
-for and in connection with specific products or compilations that
-contain the covered work, unless you entered into that arrangement,
-or that patent license was granted, prior to 28 March 2007.
-
-  Nothing in this License shall be construed as excluding or limiting
-any implied license or other defenses to infringement that may
-otherwise be available to you under applicable patent law.
-
-  12. No Surrender of Others' Freedom.
-
-  If conditions are imposed on you (whether by court order, agreement or
-otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot convey a
-covered work so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you may
-not convey it at all.  For example, if you agree to terms that obligate you
-to collect a royalty for further conveying from those to whom you convey
-the Program, the only way you could satisfy both those terms and this
-License would be to refrain entirely from conveying the Program.
-
-  13. Remote Network Interaction; Use with the GNU General Public License.
-
-  Notwithstanding any other provision of this License, if you modify the
-Program, your modified version must prominently offer all users
-interacting with it remotely through a computer network (if your version
-supports such interaction) an opportunity to receive the Corresponding
-Source of your version by providing access to the Corresponding Source
-from a network server at no charge, through some standard or customary
-means of facilitating copying of software.  This Corresponding Source
-shall include the Corresponding Source for any work covered by version 3
-of the GNU General Public License that is incorporated pursuant to the
-following paragraph.
-
-  Notwithstanding any other provision of this License, you have
-permission to link or combine any covered work with a work licensed
-under version 3 of the GNU General Public License into a single
-combined work, and to convey the resulting work.  The terms of this
-License will continue to apply to the part which is the covered work,
-but the work with which it is combined will remain governed by version
-3 of the GNU General Public License.
-
-  14. Revised Versions of this License.
-
-  The Free Software Foundation may publish revised and/or new versions of
-the GNU Affero General Public License from time to time.  Such new versions
-will be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-  Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU Affero General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
-GNU Affero General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
-  If the Program specifies that a proxy can decide which future
-versions of the GNU Affero General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If your software can interact with users remotely through a computer
-network, you should also make sure that it provides a way for users to
-get its source.  For example, if your program is a web application, its
-interface could display a "Source" link that leads users to an archive
-of the code.  There are many ways you could offer source, and different
-solutions will be better for different programs; see section 13 for the
-specific requirements.
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU AGPL, see
-<http://www.gnu.org/licenses/>.
-`,
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/license_apache_2.go

@@ -1,237 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initApache2() {
-	Licenses["apache"] = License{
-		Name:            "Apache 2.0",
-		PossibleMatches: []string{"apache", "apache20", "apache 2.0", "apache2.0", "apache-2.0"},
-		Header: `Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.`,
-		Text: `
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
-
-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
-      (an example is provided in the Appendix below).
-
-      "Derivative Works" shall mean any work, whether in Source or Object
-      form, that is based on (or derived from) the Work and for which the
-      editorial revisions, annotations, elaborations, or other modifications
-      represent, as a whole, an original work of authorship. For the purposes
-      of this License, Derivative Works shall not include works that remain
-      separable from, or merely link (or bind by name) to the interfaces of,
-      the Work and Derivative Works thereof.
-
-      "Contribution" shall mean any work of authorship, including
-      the original version of the Work and any modifications or additions
-      to that Work or Derivative Works thereof, that is intentionally
-      submitted to Licensor for inclusion in the Work by the copyright owner
-      or by an individual or Legal Entity authorized to submit on behalf of
-      the copyright owner. For the purposes of this definition, "submitted"
-      means any form of electronic, verbal, or written communication sent
-      to the Licensor or its representatives, including but not limited to
-      communication on electronic mailing lists, source code control systems,
-      and issue tracking systems that are managed by, or on behalf of, the
-      Licensor for the purpose of discussing and improving the Work, but
-      excluding communication that is conspicuously marked or otherwise
-      designated in writing by the copyright owner as "Not a Contribution."
-
-      "Contributor" shall mean Licensor and any individual or Legal Entity
-      on behalf of whom a Contribution has been received by Licensor and
-      subsequently incorporated within the Work.
-
-   2. Grant of Copyright License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      copyright license to reproduce, prepare Derivative Works of,
-      publicly display, publicly perform, sublicense, and distribute the
-      Work and such Derivative Works in Source or Object form.
-
-   3. Grant of Patent License. Subject to the terms and conditions of
-      this License, each Contributor hereby grants to You a perpetual,
-      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
-      (except as stated in this section) patent license to make, have made,
-      use, offer to sell, sell, import, and otherwise transfer the Work,
-      where such license applies only to those patent claims licensable
-      by such Contributor that are necessarily infringed by their
-      Contribution(s) alone or by combination of their Contribution(s)
-      with the Work to which such Contribution(s) was submitted. If You
-      institute patent litigation against any entity (including a
-      cross-claim or counterclaim in a lawsuit) alleging that the Work
-      or a Contribution incorporated within the Work constitutes direct
-      or contributory patent infringement, then any patent licenses
-      granted to You under this License for that Work shall terminate
-      as of the date such litigation is filed.
-
-   4. Redistribution. You may reproduce and distribute copies of the
-      Work or Derivative Works thereof in any medium, with or without
-      modifications, and in Source or Object form, provided that You
-      meet the following conditions:
-
-      (a) You must give any other recipients of the Work or
-          Derivative Works a copy of this License; and
-
-      (b) You must cause any modified files to carry prominent notices
-          stating that You changed the files; and
-
-      (c) You must retain, in the Source form of any Derivative Works
-          that You distribute, all copyright, patent, trademark, and
-          attribution notices from the Source form of the Work,
-          excluding those notices that do not pertain to any part of
-          the Derivative Works; and
-
-      (d) If the Work includes a "NOTICE" text file as part of its
-          distribution, then any Derivative Works that You distribute must
-          include a readable copy of the attribution notices contained
-          within such NOTICE file, excluding those notices that do not
-          pertain to any part of the Derivative Works, in at least one
-          of the following places: within a NOTICE text file distributed
-          as part of the Derivative Works; within the Source form or
-          documentation, if provided along with the Derivative Works; or,
-          within a display generated by the Derivative Works, if and
-          wherever such third-party notices normally appear. The contents
-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
-          or as an addendum to the NOTICE text from the Work, provided
-          that such additional attribution notices cannot be construed
-          as modifying the License.
-
-      You may add Your own copyright statement to Your modifications and
-      may provide additional or different license terms and conditions
-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
-
-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "[]"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
-
-   Copyright [yyyy] [name of copyright owner]
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-`,
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/license_bsd_clause_2.go

@@ -1,72 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initBsdClause2() {
-	Licenses["freebsd"] = License{
-		Name: "Simplified BSD License",
-		PossibleMatches: []string{"freebsd", "simpbsd", "simple bsd", "2-clause bsd",
-			"2 clause bsd", "simplified bsd license"},
-		Header: `
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice,
-   this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGE.`,
-		Text: `{{ .copyright }}
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice,
-   this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-`,
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/license_bsd_clause_3.go

@@ -1,79 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initBsdClause3() {
-	Licenses["bsd"] = License{
-		Name:            "NewBSD",
-		PossibleMatches: []string{"bsd", "newbsd", "3 clause bsd", "3-clause bsd"},
-		Header: `
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice,
-   this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-3. Neither the name of the copyright holder nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGE.`,
-		Text: `{{ .copyright }}
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice,
-   this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-3. Neither the name of the copyright holder nor the names of its contributors
-   may be used to endorse or promote products derived from this software
-   without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-`,
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/license_gpl_2.go

@@ -1,377 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initGpl2() {
-	Licenses["gpl2"] = License{
-		Name:            "GNU General Public License 2.0",
-		PossibleMatches: []string{"gpl2", "gnu gpl2", "gplv2"},
-		Header: `{{.copyright}}
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.`,
-		Text: `                    GNU GENERAL PUBLIC LICENSE
-                       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users.  This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
-the GNU Lesser General Public License instead.)  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-this service if you wish), that you receive source code or can get it
-if you want it, that you can change the software or use pieces of it
-in new free programs; and that you know you can do these things.
-
-  To protect your rights, we need to make restrictions that forbid
-anyone to deny you these rights or to ask you to surrender the rights.
-These restrictions translate to certain responsibilities for you if you
-distribute copies of the software, or if you modify it.
-
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must give the recipients all the rights that
-you have.  You must make sure that they, too, receive or can get the
-source code.  And you must show them these terms so they know their
-rights.
-
-  We protect your rights with two steps: (1) copyright the software, and
-(2) offer you this license which gives you legal permission to copy,
-distribute and/or modify the software.
-
-  Also, for each author's protection and ours, we want to make certain
-that everyone understands that there is no warranty for this free
-software.  If the software is modified by someone else and passed on, we
-want its recipients to know that what they have is not the original, so
-that any problems introduced by others will not reflect on the original
-authors' reputations.
-
-  Finally, any free program is threatened constantly by software
-patents.  We wish to avoid the danger that redistributors of a free
-program will individually obtain patent licenses, in effect making the
-program proprietary.  To prevent this, we have made it clear that any
-patent must be licensed for everyone's free use or not licensed at all.
-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-                    GNU GENERAL PUBLIC LICENSE
-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
-  0. This License applies to any program or other work which contains
-a notice placed by the copyright holder saying it may be distributed
-under the terms of this General Public License.  The "Program", below,
-refers to any such program or work, and a "work based on the Program"
-means either the Program or any derivative work under copyright law:
-that is to say, a work containing the Program or a portion of it,
-either verbatim or with modifications and/or translated into another
-language.  (Hereinafter, translation is included without limitation in
-the term "modification".)  Each licensee is addressed as "you".
-
-Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope.  The act of
-running the Program is not restricted, and the output from the Program
-is covered only if its contents constitute a work based on the
-Program (independent of having been made by running the Program).
-Whether that is true depends on what the Program does.
-
-  1. You may copy and distribute verbatim copies of the Program's
-source code as you receive it, in any medium, provided that you
-conspicuously and appropriately publish on each copy an appropriate
-copyright notice and disclaimer of warranty; keep intact all the
-notices that refer to this License and to the absence of any warranty;
-and give any other recipients of the Program a copy of this License
-along with the Program.
-
-You may charge a fee for the physical act of transferring a copy, and
-you may at your option offer warranty protection in exchange for a fee.
-
-  2. You may modify your copy or copies of the Program or any portion
-of it, thus forming a work based on the Program, and copy and
-distribute such modifications or work under the terms of Section 1
-above, provided that you also meet all of these conditions:
-
-    a) You must cause the modified files to carry prominent notices
-    stating that you changed the files and the date of any change.
-
-    b) You must cause any work that you distribute or publish, that in
-    whole or in part contains or is derived from the Program or any
-    part thereof, to be licensed as a whole at no charge to all third
-    parties under the terms of this License.
-
-    c) If the modified program normally reads commands interactively
-    when run, you must cause it, when started running for such
-    interactive use in the most ordinary way, to print or display an
-    announcement including an appropriate copyright notice and a
-    notice that there is no warranty (or else, saying that you provide
-    a warranty) and that users may redistribute the program under
-    these conditions, and telling the user how to view a copy of this
-    License.  (Exception: if the Program itself is interactive but
-    does not normally print such an announcement, your work based on
-    the Program is not required to print an announcement.)
-
-These requirements apply to the modified work as a whole.  If
-identifiable sections of that work are not derived from the Program,
-and can be reasonably considered independent and separate works in
-themselves, then this License, and its terms, do not apply to those
-sections when you distribute them as separate works.  But when you
-distribute the same sections as part of a whole which is a work based
-on the Program, the distribution of the whole must be on the terms of
-this License, whose permissions for other licensees extend to the
-entire whole, and thus to each and every part regardless of who wrote it.
-
-Thus, it is not the intent of this section to claim rights or contest
-your rights to work written entirely by you; rather, the intent is to
-exercise the right to control the distribution of derivative or
-collective works based on the Program.
-
-In addition, mere aggregation of another work not based on the Program
-with the Program (or with a work based on the Program) on a volume of
-a storage or distribution medium does not bring the other work under
-the scope of this License.
-
-  3. You may copy and distribute the Program (or a work based on it,
-under Section 2) in object code or executable form under the terms of
-Sections 1 and 2 above provided that you also do one of the following:
-
-    a) Accompany it with the complete corresponding machine-readable
-    source code, which must be distributed under the terms of Sections
-    1 and 2 above on a medium customarily used for software interchange; or,
-
-    b) Accompany it with a written offer, valid for at least three
-    years, to give any third party, for a charge no more than your
-    cost of physically performing source distribution, a complete
-    machine-readable copy of the corresponding source code, to be
-    distributed under the terms of Sections 1 and 2 above on a medium
-    customarily used for software interchange; or,
-
-    c) Accompany it with the information you received as to the offer
-    to distribute corresponding source code.  (This alternative is
-    allowed only for noncommercial distribution and only if you
-    received the program in object code or executable form with such
-    an offer, in accord with Subsection b above.)
-
-The source code for a work means the preferred form of the work for
-making modifications to it.  For an executable work, complete source
-code means all the source code for all modules it contains, plus any
-associated interface definition files, plus the scripts used to
-control compilation and installation of the executable.  However, as a
-special exception, the source code distributed need not include
-anything that is normally distributed (in either source or binary
-form) with the major components (compiler, kernel, and so on) of the
-operating system on which the executable runs, unless that component
-itself accompanies the executable.
-
-If distribution of executable or object code is made by offering
-access to copy from a designated place, then offering equivalent
-access to copy the source code from the same place counts as
-distribution of the source code, even though third parties are not
-compelled to copy the source along with the object code.
-
-  4. You may not copy, modify, sublicense, or distribute the Program
-except as expressly provided under this License.  Any attempt
-otherwise to copy, modify, sublicense or distribute the Program is
-void, and will automatically terminate your rights under this License.
-However, parties who have received copies, or rights, from you under
-this License will not have their licenses terminated so long as such
-parties remain in full compliance.
-
-  5. You are not required to accept this License, since you have not
-signed it.  However, nothing else grants you permission to modify or
-distribute the Program or its derivative works.  These actions are
-prohibited by law if you do not accept this License.  Therefore, by
-modifying or distributing the Program (or any work based on the
-Program), you indicate your acceptance of this License to do so, and
-all its terms and conditions for copying, distributing or modifying
-the Program or works based on it.
-
-  6. Each time you redistribute the Program (or any work based on the
-Program), the recipient automatically receives a license from the
-original licensor to copy, distribute or modify the Program subject to
-these terms and conditions.  You may not impose any further
-restrictions on the recipients' exercise of the rights granted herein.
-You are not responsible for enforcing compliance by third parties to
-this License.
-
-  7. If, as a consequence of a court judgment or allegation of patent
-infringement or for any other reason (not limited to patent issues),
-conditions are imposed on you (whether by court order, agreement or
-otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot
-distribute so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you
-may not distribute the Program at all.  For example, if a patent
-license would not permit royalty-free redistribution of the Program by
-all those who receive copies directly or indirectly through you, then
-the only way you could satisfy both it and this License would be to
-refrain entirely from distribution of the Program.
-
-If any portion of this section is held invalid or unenforceable under
-any particular circumstance, the balance of the section is intended to
-apply and the section as a whole is intended to apply in other
-circumstances.
-
-It is not the purpose of this section to induce you to infringe any
-patents or other property right claims or to contest validity of any
-such claims; this section has the sole purpose of protecting the
-integrity of the free software distribution system, which is
-implemented by public license practices.  Many people have made
-generous contributions to the wide range of software distributed
-through that system in reliance on consistent application of that
-system; it is up to the author/donor to decide if he or she is willing
-to distribute software through any other system and a licensee cannot
-impose that choice.
-
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
-
-  8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
-
-  9. The Free Software Foundation may publish revised and/or new versions
-of the General Public License from time to time.  Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-Each version is given a distinguishing version number.  If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation.  If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
-
-  10. If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
-to ask for permission.  For software which is copyrighted by the Free
-Software Foundation, write to the Free Software Foundation; we sometimes
-make exceptions for this.  Our decision will be guided by the two goals
-of preserving the free status of all derivatives of our free software and
-of promoting the sharing and reuse of software generally.
-
-                            NO WARRANTY
-
-  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
-OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
-PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
-OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.
-
-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-convey the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
-
-    Gnomovision version 69, Copyright (C) year name of author
-    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type 'show c' for details.
-
-The hypothetical commands 'show w' and 'show c' should show the appropriate
-parts of the General Public License.  Of course, the commands you use may
-be called something other than 'show w' and 'show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary.  Here is a sample; alter the names:
-
-  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
-  'Gnomovision' (which makes passes at compilers) written by James Hacker.
-
-  <signature of Ty Coon>, 1 April 1989
-  Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs.  If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.
-`,
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/license_gpl_3.go

@@ -1,712 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initGpl3() {
-	Licenses["gpl3"] = License{
-		Name:            "GNU General Public License 3.0",
-		PossibleMatches: []string{"gpl3", "gplv3", "gpl", "gnu gpl3", "gnu gpl"},
-		Header: `{{.copyright}}
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.`,
-		Text: `                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The GNU General Public License is a free, copyleft license for
-software and other kinds of works.
-
-  The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works.  By contrast,
-the GNU General Public License is intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.  We, the Free Software Foundation, use the
-GNU General Public License for most of our software; it applies also to
-any other work released this way by its authors.  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-them if you wish), that you receive source code or can get it if you
-want it, that you can change the software or use pieces of it in new
-free programs, and that you know you can do these things.
-
-  To protect your rights, we need to prevent others from denying you
-these rights or asking you to surrender the rights.  Therefore, you have
-certain responsibilities if you distribute copies of the software, or if
-you modify it: responsibilities to respect the freedom of others.
-
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must pass on to the recipients the same
-freedoms that you received.  You must make sure that they, too, receive
-or can get the source code.  And you must show them these terms so they
-know their rights.
-
-  Developers that use the GNU GPL protect your rights with two steps:
-(1) assert copyright on the software, and (2) offer you this License
-giving you legal permission to copy, distribute and/or modify it.
-
-  For the developers' and authors' protection, the GPL clearly explains
-that there is no warranty for this free software.  For both users' and
-authors' sake, the GPL requires that modified versions be marked as
-changed, so that their problems will not be attributed erroneously to
-authors of previous versions.
-
-  Some devices are designed to deny users access to install or run
-modified versions of the software inside them, although the manufacturer
-can do so.  This is fundamentally incompatible with the aim of
-protecting users' freedom to change the software.  The systematic
-pattern of such abuse occurs in the area of products for individuals to
-use, which is precisely where it is most unacceptable.  Therefore, we
-have designed this version of the GPL to prohibit the practice for those
-products.  If such problems arise substantially in other domains, we
-stand ready to extend this provision to those domains in future versions
-of the GPL, as needed to protect the freedom of users.
-
-  Finally, every program is threatened constantly by software patents.
-States should not allow patents to restrict development and use of
-software on general-purpose computers, but in those that do, we wish to
-avoid the special danger that patents applied to a free program could
-make it effectively proprietary.  To prevent this, the GPL assures that
-patents cannot be used to render the program non-free.
-
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-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.
-`,
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/license_lgpl.go

@@ -1,187 +0,0 @@
-package cmd
-
-func initLgpl() {
-	Licenses["lgpl"] = License{
-		Name:            "GNU Lesser General Public License",
-		PossibleMatches: []string{"lgpl", "lesser gpl", "gnu lgpl"},
-		Header: `{{.copyright}}
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.`,
-		Text: `                   GNU LESSER GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-
-  This version of the GNU Lesser General Public License incorporates
-the terms and conditions of version 3 of the GNU General Public
-License, supplemented by the additional permissions listed below.
-
-  0. Additional Definitions.
-
-  As used herein, "this License" refers to version 3 of the GNU Lesser
-General Public License, and the "GNU GPL" refers to version 3 of the GNU
-General Public License.
-
-  "The Library" refers to a covered work governed by this License,
-other than an Application or a Combined Work as defined below.
-
-  An "Application" is any work that makes use of an interface provided
-by the Library, but which is not otherwise based on the Library.
-Defining a subclass of a class defined by the Library is deemed a mode
-of using an interface provided by the Library.
-
-  A "Combined Work" is a work produced by combining or linking an
-Application with the Library.  The particular version of the Library
-with which the Combined Work was made is also called the "Linked
-Version".
-
-  The "Minimal Corresponding Source" for a Combined Work means the
-Corresponding Source for the Combined Work, excluding any source code
-for portions of the Combined Work that, considered in isolation, are
-based on the Application, and not on the Linked Version.
-
-  The "Corresponding Application Code" for a Combined Work means the
-object code and/or source code for the Application, including any data
-and utility programs needed for reproducing the Combined Work from the
-Application, but excluding the System Libraries of the Combined Work.
-
-  1. Exception to Section 3 of the GNU GPL.
-
-  You may convey a covered work under sections 3 and 4 of this License
-without being bound by section 3 of the GNU GPL.
-
-  2. Conveying Modified Versions.
-
-  If you modify a copy of the Library, and, in your modifications, a
-facility refers to a function or data to be supplied by an Application
-that uses the facility (other than as an argument passed when the
-facility is invoked), then you may convey a copy of the modified
-version:
-
-   a) under this License, provided that you make a good faith effort to
-   ensure that, in the event an Application does not supply the
-   function or data, the facility still operates, and performs
-   whatever part of its purpose remains meaningful, or
-
-   b) under the GNU GPL, with none of the additional permissions of
-   this License applicable to that copy.
-
-  3. Object Code Incorporating Material from Library Header Files.
-
-  The object code form of an Application may incorporate material from
-a header file that is part of the Library.  You may convey such object
-code under terms of your choice, provided that, if the incorporated
-material is not limited to numerical parameters, data structure
-layouts and accessors, or small macros, inline functions and templates
-(ten or fewer lines in length), you do both of the following:
-
-   a) Give prominent notice with each copy of the object code that the
-   Library is used in it and that the Library and its use are
-   covered by this License.
-
-   b) Accompany the object code with a copy of the GNU GPL and this license
-   document.
-
-  4. Combined Works.
-
-  You may convey a Combined Work under terms of your choice that,
-taken together, effectively do not restrict modification of the
-portions of the Library contained in the Combined Work and reverse
-engineering for debugging such modifications, if you also do each of
-the following:
-
-   a) Give prominent notice with each copy of the Combined Work that
-   the Library is used in it and that the Library and its use are
-   covered by this License.
-
-   b) Accompany the Combined Work with a copy of the GNU GPL and this license
-   document.
-
-   c) For a Combined Work that displays copyright notices during
-   execution, include the copyright notice for the Library among
-   these notices, as well as a reference directing the user to the
-   copies of the GNU GPL and this license document.
-
-   d) Do one of the following:
-
-       0) Convey the Minimal Corresponding Source under the terms of this
-       License, and the Corresponding Application Code in a form
-       suitable for, and under terms that permit, the user to
-       recombine or relink the Application with a modified version of
-       the Linked Version to produce a modified Combined Work, in the
-       manner specified by section 6 of the GNU GPL for conveying
-       Corresponding Source.
-
-       1) Use a suitable shared library mechanism for linking with the
-       Library.  A suitable mechanism is one that (a) uses at run time
-       a copy of the Library already present on the user's computer
-       system, and (b) will operate properly with a modified version
-       of the Library that is interface-compatible with the Linked
-       Version.
-
-   e) Provide Installation Information, but only if you would otherwise
-   be required to provide such information under section 6 of the
-   GNU GPL, and only to the extent that such information is
-   necessary to install and execute a modified version of the
-   Combined Work produced by recombining or relinking the
-   Application with a modified version of the Linked Version. (If
-   you use option 4d0, the Installation Information must accompany
-   the Minimal Corresponding Source and Corresponding Application
-   Code. If you use option 4d1, you must provide the Installation
-   Information in the manner specified by section 6 of the GNU GPL
-   for conveying Corresponding Source.)
-
-  5. Combined Libraries.
-
-  You may place library facilities that are a work based on the
-Library side by side in a single library together with other library
-facilities that are not Applications and are not covered by this
-License, and convey such a combined library under terms of your
-choice, if you do both of the following:
-
-   a) Accompany the combined library with a copy of the same work based
-   on the Library, uncombined with any other library facilities,
-   conveyed under the terms of this License.
-
-   b) Give prominent notice with the combined library that part of it
-   is a work based on the Library, and explaining where to find the
-   accompanying uncombined form of the same work.
-
-  6. Revised Versions of the GNU Lesser General Public License.
-
-  The Free Software Foundation may publish revised and/or new versions
-of the GNU Lesser General Public License from time to time. Such new
-versions will be similar in spirit to the present version, but may
-differ in detail to address new problems or concerns.
-
-  Each version is given a distinguishing version number. If the
-Library as you received it specifies that a certain numbered version
-of the GNU Lesser General Public License "or any later version"
-applies to it, you have the option of following the terms and
-conditions either of that published version or of any later version
-published by the Free Software Foundation. If the Library as you
-received it does not specify a version number of the GNU Lesser
-General Public License, you may choose any version of the GNU Lesser
-General Public License ever published by the Free Software Foundation.
-
-  If the Library as you received it specifies that a proxy can decide
-whether future versions of the GNU Lesser General Public License shall
-apply, that proxy's public statement of acceptance of any version is
-permanent authorization for you to choose that version for the
-Library.`,
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/license_mit.go

@@ -1,63 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-func initMit() {
-	Licenses["mit"] = License{
-		Name:            "Mit",
-		PossibleMatches: []string{"mit"},
-		Header: `
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.`,
-		Text: `The MIT License (MIT)
-
-{{ .copyright }}
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-`,
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/licenses.go

@@ -1,114 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Parts inspired by https://github.com/ryanuber/go-license
-
-package cmd
-
-import (
-	"strings"
-	"time"
-
-	"github.com/spf13/viper"
-)
-
-// Licenses contains all possible licenses a user can choose from.
-var Licenses = make(map[string]License)
-
-// License represents a software license agreement, containing the Name of
-// the license, its possible matches (on the command line as given to cobra),
-// the header to be used with each file on the file's creating, and the text
-// of the license
-type License struct {
-	Name            string   // The type of license in use
-	PossibleMatches []string // Similar names to guess
-	Text            string   // License text data
-	Header          string   // License header for source files
-}
-
-func init() {
-	// Allows a user to not use a license.
-	Licenses["none"] = License{"None", []string{"none", "false"}, "", ""}
-
-	initApache2()
-	initMit()
-	initBsdClause3()
-	initBsdClause2()
-	initGpl2()
-	initGpl3()
-	initLgpl()
-	initAgpl()
-}
-
-// getLicense returns license specified by user in flag or in config.
-// If user didn't specify the license, it returns Apache License 2.0.
-//
-// TODO: Inspect project for existing license
-func getLicense() License {
-	// If explicitly flagged, use that.
-	if userLicense != "" {
-		return findLicense(userLicense)
-	}
-
-	// If user wants to have custom license, use that.
-	if viper.IsSet("license.header") || viper.IsSet("license.text") {
-		return License{Header: viper.GetString("license.header"),
-			Text: "license.text"}
-	}
-
-	// If user wants to have built-in license, use that.
-	if viper.IsSet("license") {
-		return findLicense(viper.GetString("license"))
-	}
-
-	// If user didn't set any license, use Apache 2.0 by default.
-	return Licenses["apache"]
-}
-
-func copyrightLine() string {
-	author := viper.GetString("author")
-	year := time.Now().Format("2006")
-
-	return "Copyright © " + year + " " + author
-}
-
-// findLicense looks for License object of built-in licenses.
-// If it didn't find license, then the app will be terminated and
-// error will be printed.
-func findLicense(name string) License {
-	found := matchLicense(name)
-	if found == "" {
-		er("unknown license: " + name)
-	}
-	return Licenses[found]
-}
-
-// matchLicense compares the given a license name
-// to PossibleMatches of all built-in licenses.
-// It returns blank string, if name is blank string or it didn't find
-// then appropriate match to name.
-func matchLicense(name string) string {
-	if name == "" {
-		return ""
-	}
-
-	for key, lic := range Licenses {
-		for _, match := range lic.PossibleMatches {
-			if strings.EqualFold(name, match) {
-				return key
-			}
-		}
-	}
-
-	return ""
-}

vendor/github.com/spf13/cobra/cobra/cmd/project.go

@@ -1,195 +0,0 @@
-package cmd
-
-import (
-	"os"
-	"path/filepath"
-	"runtime"
-	"strings"
-)
-
-// Project contains name, license and paths to projects.
-type Project struct {
-	absPath string
-	cmdPath string
-	srcPath string
-	license License
-	name    string
-}
-
-// NewProject returns Project with specified project name.
-// If projectName is blank string, it returns nil.
-func NewProject(projectName string) *Project {
-	if projectName == "" {
-		return nil
-	}
-
-	p := new(Project)
-	p.name = projectName
-
-	// 1. Find already created protect.
-	p.absPath = findPackage(projectName)
-
-	// 2. If there are no created project with this path, and user is in GOPATH,
-	// then use GOPATH/src/projectName.
-	if p.absPath == "" {
-		wd, err := os.Getwd()
-		if err != nil {
-			er(err)
-		}
-		for _, srcPath := range srcPaths {
-			goPath := filepath.Dir(srcPath)
-			if filepathHasPrefix(wd, goPath) {
-				p.absPath = filepath.Join(srcPath, projectName)
-				break
-			}
-		}
-	}
-
-	// 3. If user is not in GOPATH, then use (first GOPATH)/src/projectName.
-	if p.absPath == "" {
-		p.absPath = filepath.Join(srcPaths[0], projectName)
-	}
-
-	return p
-}
-
-// findPackage returns full path to existing go package in GOPATHs.
-// findPackage returns "", if it can't find path.
-// If packageName is "", findPackage returns "".
-func findPackage(packageName string) string {
-	if packageName == "" {
-		return ""
-	}
-
-	for _, srcPath := range srcPaths {
-		packagePath := filepath.Join(srcPath, packageName)
-		if exists(packagePath) {
-			return packagePath
-		}
-	}
-
-	return ""
-}
-
-// NewProjectFromPath returns Project with specified absolute path to
-// package.
-// If absPath is blank string or if absPath is not actually absolute,
-// it returns nil.
-func NewProjectFromPath(absPath string) *Project {
-	if absPath == "" || !filepath.IsAbs(absPath) {
-		return nil
-	}
-
-	p := new(Project)
-	p.absPath = absPath
-	p.absPath = strings.TrimSuffix(p.absPath, findCmdDir(p.absPath))
-	p.name = filepath.ToSlash(trimSrcPath(p.absPath, p.SrcPath()))
-	return p
-}
-
-// trimSrcPath trims at the beginning of absPath the srcPath.
-func trimSrcPath(absPath, srcPath string) string {
-	relPath, err := filepath.Rel(srcPath, absPath)
-	if err != nil {
-		er("Cobra supports project only within $GOPATH: " + err.Error())
-	}
-	return relPath
-}
-
-// License returns the License object of project.
-func (p *Project) License() License {
-	if p.license.Text == "" && p.license.Name != "None" {
-		p.license = getLicense()
-	}
-
-	return p.license
-}
-
-// Name returns the name of project, e.g. "github.com/spf13/cobra"
-func (p Project) Name() string {
-	return p.name
-}
-
-// CmdPath returns absolute path to directory, where all commands are located.
-//
-// CmdPath returns blank string, only if p.AbsPath() is a blank string.
-func (p *Project) CmdPath() string {
-	if p.absPath == "" {
-		return ""
-	}
-	if p.cmdPath == "" {
-		p.cmdPath = filepath.Join(p.absPath, findCmdDir(p.absPath))
-	}
-	return p.cmdPath
-}
-
-// findCmdDir checks if base of absPath is cmd dir and returns it or
-// looks for existing cmd dir in absPath.
-// If the cmd dir doesn't exist, empty, or cannot be found,
-// it returns "cmd".
-func findCmdDir(absPath string) string {
-	if !exists(absPath) || isEmpty(absPath) {
-		return "cmd"
-	}
-
-	if isCmdDir(absPath) {
-		return filepath.Base(absPath)
-	}
-
-	files, _ := filepath.Glob(filepath.Join(absPath, "c*"))
-	for _, file := range files {
-		if isCmdDir(file) {
-			return filepath.Base(file)
-		}
-	}
-
-	return "cmd"
-}
-
-// isCmdDir checks if base of name is one of cmdDir.
-func isCmdDir(name string) bool {
-	name = filepath.Base(name)
-	for _, cmdDir := range cmdDirs {
-		if name == cmdDir {
-			return true
-		}
-	}
-	return false
-}
-
-// AbsPath returns absolute path of project.
-func (p Project) AbsPath() string {
-	return p.absPath
-}
-
-// SrcPath returns absolute path to $GOPATH/src where project is located.
-func (p *Project) SrcPath() string {
-	if p.srcPath != "" {
-		return p.srcPath
-	}
-	if p.absPath == "" {
-		p.srcPath = srcPaths[0]
-		return p.srcPath
-	}
-
-	for _, srcPath := range srcPaths {
-		if filepathHasPrefix(p.absPath, srcPath) {
-			p.srcPath = srcPath
-			break
-		}
-	}
-
-	return p.srcPath
-}
-
-func filepathHasPrefix(path string, prefix string) bool {
-	if len(path) <= len(prefix) {
-		return false
-	}
-	if runtime.GOOS == "windows" {
-		// Paths in windows are case-insensitive.
-		return strings.EqualFold(path[0:len(prefix)], prefix)
-	}
-	return path[0:len(prefix)] == prefix
-
-}

vendor/github.com/spf13/cobra/cobra/cmd/project_test.go

@@ -1,24 +0,0 @@
-package cmd
-
-import (
-	"testing"
-)
-
-func TestFindExistingPackage(t *testing.T) {
-	path := findPackage("github.com/spf13/cobra")
-	if path == "" {
-		t.Fatal("findPackage didn't find the existing package")
-	}
-	if !hasGoPathPrefix(path) {
-		t.Fatalf("%q is not in GOPATH, but must be", path)
-	}
-}
-
-func hasGoPathPrefix(path string) bool {
-	for _, srcPath := range srcPaths {
-		if filepathHasPrefix(path, srcPath) {
-			return true
-		}
-	}
-	return false
-}

vendor/github.com/spf13/cobra/cobra/cmd/root.go

@@ -1,80 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package cmd
-
-import (
-	"fmt"
-
-	homedir "github.com/mitchellh/go-homedir"
-	"github.com/spf13/cobra"
-	"github.com/spf13/viper"
-)
-
-var (
-	// Used for flags.
-	cfgFile, userLicense string
-
-	rootCmd = &cobra.Command{
-		Use:   "cobra",
-		Short: "A generator for Cobra based Applications",
-		Long: `Cobra is a CLI library for Go that empowers applications.
-This application is a tool to generate the needed files
-to quickly create a Cobra application.`,
-	}
-)
-
-// Execute executes the root command.
-func Execute() {
-	rootCmd.Execute()
-}
-
-func init() {
-	initViper()
-
-	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.cobra.yaml)")
-	rootCmd.PersistentFlags().StringP("author", "a", "YOUR NAME", "author name for copyright attribution")
-	rootCmd.PersistentFlags().StringVarP(&userLicense, "license", "l", "", "name of license for the project (can provide `license` in config)")
-	rootCmd.PersistentFlags().Bool("viper", true, "use Viper for configuration")
-	viper.BindPFlag("author", rootCmd.PersistentFlags().Lookup("author"))
-	viper.BindPFlag("useViper", rootCmd.PersistentFlags().Lookup("viper"))
-	viper.SetDefault("author", "NAME HERE <EMAIL ADDRESS>")
-	viper.SetDefault("license", "apache")
-
-	rootCmd.AddCommand(initCmd)
-	rootCmd.AddCommand(addCmd)
-
-}
-
-func initViper() {
-	if cfgFile != "" {
-		// Use config file from the flag.
-		viper.SetConfigFile(cfgFile)
-	} else {
-		// Find home directory.
-		home, err := homedir.Dir()
-		if err != nil {
-			er(err)
-		}
-
-		// Search config in home directory with name ".cobra" (without extension).
-		viper.AddConfigPath(home)
-		viper.SetConfigName(".cobra")
-	}
-
-	viper.AutomaticEnv()
-
-	if err := viper.ReadInConfig(); err == nil {
-		fmt.Println("Using config file:", viper.ConfigFileUsed())
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/testdata/LICENSE.golden

@@ -1,202 +0,0 @@
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
-
-      "Object" form shall mean any form resulting from mechanical
-      transformation or translation of a Source form, including but
-      not limited to compiled object code, generated documentation,
-      and conversions to other media types.
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vendor/github.com/spf13/cobra/cobra/cmd/testdata/main.go.golden

@@ -1,20 +0,0 @@
-// Copyright © 2017 NAME HERE <EMAIL ADDRESS>
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package main
-
-import "github.com/spf13/testproject/cmd"
-
-func main() {
-	cmd.Execute()
-}

vendor/github.com/spf13/cobra/cobra/cmd/testdata/root.go.golden

@@ -1,88 +0,0 @@
-// Copyright © 2017 NAME HERE <EMAIL ADDRESS>
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package cmd
-
-import (
-	"fmt"
-	"os"
-
-	homedir "github.com/mitchellh/go-homedir"
-	"github.com/spf13/cobra"
-	"github.com/spf13/viper"
-)
-
-var cfgFile string
-
-// RootCmd represents the base command when called without any subcommands
-var RootCmd = &cobra.Command{
-	Use:   "testproject",
-	Short: "A brief description of your application",
-	Long: `A longer description that spans multiple lines and likely contains
-examples and usage of using your application. For example:
-
-Cobra is a CLI library for Go that empowers applications.
-This application is a tool to generate the needed files
-to quickly create a Cobra application.`,
-	// Uncomment the following line if your bare application
-	// has an action associated with it:
-	//	Run: func(cmd *cobra.Command, args []string) { },
-}
-
-// Execute adds all child commands to the root command sets flags appropriately.
-// This is called by main.main(). It only needs to happen once to the rootCmd.
-func Execute() {
-	if err := RootCmd.Execute(); err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
-}
-
-func init() {
-	cobra.OnInitialize(initConfig)
-
-	// Here you will define your flags and configuration settings.
-	// Cobra supports persistent flags, which, if defined here,
-	// will be global for your application.
-	RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.testproject.yaml)")
-
-	// Cobra also supports local flags, which will only run
-	// when this action is called directly.
-	RootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
-}
-
-// initConfig reads in config file and ENV variables if set.
-func initConfig() {
-	if cfgFile != "" {
-		// Use config file from the flag.
-		viper.SetConfigFile(cfgFile)
-	} else {
-		// Find home directory.
-		home, err := homedir.Dir()
-		if err != nil {
-			fmt.Println(err)
-			os.Exit(1)
-		}
-
-		// Search config in home directory with name ".testproject" (without extension).
-		viper.AddConfigPath(home)
-		viper.SetConfigName(".testproject")
-	}
-
-	viper.AutomaticEnv() // read in environment variables that match
-
-	// If a config file is found, read it in.
-	if err := viper.ReadInConfig(); err == nil {
-		fmt.Println("Using config file:", viper.ConfigFileUsed())
-	}
-}

vendor/github.com/spf13/cobra/cobra/cmd/testdata/test.go.golden

@@ -1,49 +0,0 @@
-// Copyright © 2017 NAME HERE <EMAIL ADDRESS>
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package cmd
-
-import (
-	"fmt"
-
-	"github.com/spf13/cobra"
-)
-
-// testCmd represents the test command
-var testCmd = &cobra.Command{
-	Use:   "test",
-	Short: "A brief description of your command",
-	Long: `A longer description that spans multiple lines and likely contains examples
-and usage of using your command. For example:
-
-Cobra is a CLI library for Go that empowers applications.
-This application is a tool to generate the needed files
-to quickly create a Cobra application.`,
-	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("test called")
-	},
-}
-
-func init() {
-	RootCmd.AddCommand(testCmd)
-
-	// Here you will define your flags and configuration settings.
-
-	// Cobra supports Persistent Flags which will work for this command
-	// and all subcommands, e.g.:
-	// testCmd.PersistentFlags().String("foo", "", "A help for foo")
-
-	// Cobra supports local flags which will only run when this command
-	// is called directly, e.g.:
-	// testCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
-}

vendor/github.com/spf13/cobra/cobra/main.go

@@ -1,20 +0,0 @@
-// Copyright © 2015 Steve Francia <spf@spf13.com>.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package main
-
-import "github.com/spf13/cobra/cobra/cmd"
-
-func main() {
-	cmd.Execute()
-}

vendor/github.com/spf13/cobra/cobra_test.go

@@ -36,6 +36,7 @@ var cmdHidden = &Command{
 
 var cmdPrint = &Command{
 	Use:   "print [string to print]",
+	Args:  MinimumNArgs(1),
 	Short: "Print anything to the screen",
 	Long:  `an absolutely utterly useless command for testing.`,
 	Run: func(cmd *Command, args []string) {
@@ -75,6 +76,7 @@ var cmdDeprecated = &Command{
 	Deprecated: "Please use echo instead",
 	Run: func(cmd *Command, args []string) {
 	},
+	Args: NoArgs,
 }
 
 var cmdTimes = &Command{
@@ -88,6 +90,8 @@ var cmdTimes = &Command{
 	Run: func(cmd *Command, args []string) {
 		tt = args
 	},
+	Args:      OnlyValidArgs,
+	ValidArgs: []string{"one", "two", "three", "four"},
 }
 
 var cmdRootNoRun = &Command{
@@ -105,6 +109,16 @@ var cmdRootSameName = &Command{
 	Long:  "The root description for help",
 }
 
+var cmdRootTakesArgs = &Command{
+	Use:   "root-with-args [random args]",
+	Short: "The root can run it's own function and takes args!",
+	Long:  "The root description for help, and some args",
+	Run: func(cmd *Command, args []string) {
+		tr = args
+	},
+	Args: ArbitraryArgs,
+}
+
 var cmdRootWithRun = &Command{
 	Use:   "cobra-test",
 	Short: "The root can run its own function",
@@ -176,6 +190,7 @@ func flagInit() {
 	cmdTimes.Flags().IntVarP(&flagi2, "inttwo", "j", 234, "help message for flag inttwo")
 	cmdTimes.Flags().StringVarP(&flags2b, "strtwo", "t", "2", strtwoChildHelp)
 	cmdTimes.PersistentFlags().StringVarP(&flags2b, "strtwo", "t", "2", strtwoChildHelp)
+	cmdTimes.LocalFlags() // populate lflags before parent is set
 	cmdPrint.Flags().BoolVarP(&flagb3, "boolthree", "b", true, "help message for flag boolthree")
 	cmdPrint.PersistentFlags().StringVarP(&flags3, "strthree", "s", "three", "help message for flag strthree")
 }
@@ -196,8 +211,8 @@ func initialize() *Command {
 	rootPersPre, echoPre, echoPersPre, timesPersPre = nil, nil, nil, nil
 
 	var c = cmdRootNoRun
-	flagInit()
 	commandInit()
+	flagInit()
 	return c
 }
 
@@ -205,8 +220,8 @@ func initializeWithSameName() *Command {
 	tt, tp, te = nil, nil, nil
 	rootPersPre, echoPre, echoPersPre, timesPersPre = nil, nil, nil, nil
 	var c = cmdRootSameName
-	flagInit()
 	commandInit()
+	flagInit()
 	return c
 }
 
@@ -458,6 +473,63 @@ func TestUsage(t *testing.T) {
 	checkResultOmits(t, x, cmdCustomFlags.Use+" [flags]")
 }
 
+func TestRootTakesNoArgs(t *testing.T) {
+	c := initializeWithSameName()
+	c.AddCommand(cmdPrint, cmdEcho)
+	result := simpleTester(c, "illegal")
+
+	if result.Error == nil {
+		t.Fatal("Expected an error")
+	}
+
+	expectedError := `unknown command "illegal" for "print"`
+	if !strings.Contains(result.Error.Error(), expectedError) {
+		t.Errorf("exptected %v, got %v", expectedError, result.Error.Error())
+	}
+}
+
+func TestRootTakesArgs(t *testing.T) {
+	c := cmdRootTakesArgs
+	result := simpleTester(c, "legal")
+
+	if result.Error != nil {
+		t.Errorf("expected no error, but got %v", result.Error)
+	}
+}
+
+func TestSubCmdTakesNoArgs(t *testing.T) {
+	result := fullSetupTest("deprecated", "illegal")
+
+	if result.Error == nil {
+		t.Fatal("Expected an error")
+	}
+
+	expectedError := `unknown command "illegal" for "cobra-test deprecated"`
+	if !strings.Contains(result.Error.Error(), expectedError) {
+		t.Errorf("expected %v, got %v", expectedError, result.Error.Error())
+	}
+}
+
+func TestSubCmdTakesArgs(t *testing.T) {
+	noRRSetupTest("echo", "times", "one", "two")
+	if strings.Join(tt, " ") != "one two" {
+		t.Error("Command didn't parse correctly")
+	}
+}
+
+func TestCmdOnlyValidArgs(t *testing.T) {
+	result := noRRSetupTest("echo", "times", "one", "two", "five")
+
+	if result.Error == nil {
+		t.Fatal("Expected an error")
+	}
+
+	expectedError := `invalid argument "five"`
+	if !strings.Contains(result.Error.Error(), expectedError) {
+		t.Errorf("expected %v, got %v", expectedError, result.Error.Error())
+	}
+}
+
 func TestFlagLong(t *testing.T) {
 	noRRSetupTest("echo", "--intone=13", "something", "--", "here")
 
@@ -672,9 +744,9 @@ func TestPersistentFlags(t *testing.T) {
 	}
 
 	// persistentFlag should act like normal flag on its own command
-	fullSetupTest("echo", "times", "-s", "again", "-c", "-p", "test", "here")
+	fullSetupTest("echo", "times", "-s", "again", "-c", "-p", "one", "two")
 
-	if strings.Join(tt, " ") != "test here" {
+	if strings.Join(tt, " ") != "one two" {
 		t.Errorf("flags didn't leave proper args remaining. %s given", tt)
 	}
 
@@ -839,6 +911,7 @@ func TestRootHelp(t *testing.T) {
 func TestFlagAccess(t *testing.T) {
 	initialize()
 
+	cmdEcho.AddCommand(cmdTimes)
 	local := cmdTimes.LocalFlags()
 	inherited := cmdTimes.InheritedFlags()
 
@@ -1094,11 +1167,18 @@ func TestGlobalNormFuncPropagation(t *testing.T) {
 	}
 
 	rootCmd := initialize()
+	rootCmd.AddCommand(cmdEcho)
+
 	rootCmd.SetGlobalNormalizationFunc(normFunc)
-	if reflect.ValueOf(normFunc) != reflect.ValueOf(rootCmd.GlobalNormalizationFunc()) {
+	if reflect.ValueOf(normFunc).Pointer() != reflect.ValueOf(rootCmd.GlobalNormalizationFunc()).Pointer() {
 		t.Error("rootCmd seems to have a wrong normalization function")
 	}
 
+	// Also check it propagates retroactively
+	if reflect.ValueOf(normFunc).Pointer() != reflect.ValueOf(cmdEcho.GlobalNormalizationFunc()).Pointer() {
+		t.Error("cmdEcho should have had the normalization function of rootCmd")
+	}
+
 	// First add the cmdEchoSub to cmdPrint
 	cmdPrint.AddCommand(cmdEchoSub)
 	if cmdPrint.GlobalNormalizationFunc() != nil && cmdEchoSub.GlobalNormalizationFunc() != nil {
@@ -1113,6 +1193,67 @@ func TestGlobalNormFuncPropagation(t *testing.T) {
 	}
 }
 
+func TestNormPassedOnLocal(t *testing.T) {
+	n := func(f *pflag.FlagSet, name string) pflag.NormalizedName {
+		return pflag.NormalizedName(strings.ToUpper(name))
+	}
+
+	cmd := &Command{}
+	flagVal := false
+
+	cmd.Flags().BoolVar(&flagVal, "flagname", true, "this is a dummy flag")
+	cmd.SetGlobalNormalizationFunc(n)
+	if cmd.LocalFlags().Lookup("flagname") != cmd.LocalFlags().Lookup("FLAGNAME") {
+		t.Error("Normalization function should be passed on to Local flag set")
+	}
+}
+
+func TestNormPassedOnInherited(t *testing.T) {
+	n := func(f *pflag.FlagSet, name string) pflag.NormalizedName {
+		return pflag.NormalizedName(strings.ToUpper(name))
+	}
+
+	cmd, childBefore, childAfter := &Command{}, &Command{}, &Command{}
+	flagVal := false
+	cmd.AddCommand(childBefore)
+
+	cmd.PersistentFlags().BoolVar(&flagVal, "flagname", true, "this is a dummy flag")
+	cmd.SetGlobalNormalizationFunc(n)
+
+	cmd.AddCommand(childAfter)
+
+	if f := childBefore.InheritedFlags(); f.Lookup("flagname") == nil || f.Lookup("flagname") != f.Lookup("FLAGNAME") {
+		t.Error("Normalization function should be passed on to inherited flag set in command added before flag")
+	}
+	if f := childAfter.InheritedFlags(); f.Lookup("flagname") == nil || f.Lookup("flagname") != f.Lookup("FLAGNAME") {
+		t.Error("Normalization function should be passed on to inherited flag set in command added after flag")
+	}
+}
+
+// Related to https://github.com/spf13/cobra/issues/521.
+func TestNormConsistent(t *testing.T) {
+	n := func(f *pflag.FlagSet, name string) pflag.NormalizedName {
+		return pflag.NormalizedName(strings.ToUpper(name))
+	}
+	id := func(f *pflag.FlagSet, name string) pflag.NormalizedName {
+		return pflag.NormalizedName(name)
+	}
+
+	cmd := &Command{}
+	flagVal := false
+
+	cmd.Flags().BoolVar(&flagVal, "flagname", true, "this is a dummy flag")
+	// Build local flag set
+	cmd.LocalFlags()
+
+	cmd.SetGlobalNormalizationFunc(n)
+	cmd.SetGlobalNormalizationFunc(id)
+
+	if cmd.LocalFlags().Lookup("flagname") == cmd.LocalFlags().Lookup("FLAGNAME") {
+		t.Error("Normalizing flag names should not result in duplicate flags")
+	}
+}
+
 func TestFlagOnPflagCommandLine(t *testing.T) {
 	flagName := "flagOnCommandLine"
 	pflag.String(flagName, "", "about my flag")

vendor/github.com/spf13/cobra/command.go

@@ -54,6 +54,9 @@ type Command struct {
 	// ValidArgs is list of all valid non-flag arguments that are accepted in bash completions
 	ValidArgs []string
 
+	// Expected arguments
+	Args PositionalArgs
+
 	// ArgAliases is List of aliases for ValidArgs.
 	// These are not suggested to the user in the bash completion,
 	// but accepted if entered manually.
@@ -122,8 +125,9 @@ type Command struct {
 	// Must be > 0.
 	SuggestionsMinimumDistance int
 
-	// name is the command name, usually the executable's name.
-	name string
+	// TraverseChildren parses flags on all parents before executing child command.
+	TraverseChildren bool
+
 	// commands is the list of commands supported by this program.
 	commands []*Command
 	// parent is a parent command for this command.
@@ -472,13 +476,14 @@ func argsMinusFirstX(args []string, x string) []string {
 	return args
 }
 
+func isFlagArg(arg string) bool {
+	return ((len(arg) >= 3 && arg[1] == '-') ||
+		(len(arg) >= 2 && arg[0] == '-' && arg[1] != '-'))
+}
+
 // Find the target command given the args and command tree
 // Meant to be run on the highest node. Only searches down.
 func (c *Command) Find(args []string) (*Command, []string, error) {
-	if c == nil {
-		return nil, nil, fmt.Errorf("Called find() on a nil Command")
-	}
-
 	var innerfind func(*Command, []string) (*Command, []string)
 
 	innerfind = func(c *Command, innerArgs []string) (*Command, []string) {
@@ -487,59 +492,98 @@ func (c *Command) Find(args []string) (*Command, []string, error) {
 			return c, innerArgs
 		}
 		nextSubCmd := argsWOflags[0]
-		matches := make([]*Command, 0)
-		for _, cmd := range c.commands {
-			if cmd.Name() == nextSubCmd || cmd.HasAlias(nextSubCmd) { // exact name or alias match
-				return innerfind(cmd, argsMinusFirstX(innerArgs, nextSubCmd))
-			}
-			if EnablePrefixMatching {
-				if strings.HasPrefix(cmd.Name(), nextSubCmd) { // prefix match
-					matches = append(matches, cmd)
-				}
-				for _, x := range cmd.Aliases {
-					if strings.HasPrefix(x, nextSubCmd) {
-						matches = append(matches, cmd)
-					}
-				}
-			}
-		}
 
-		// only accept a single prefix match - multiple matches would be ambiguous
-		if len(matches) == 1 {
-			return innerfind(matches[0], argsMinusFirstX(innerArgs, argsWOflags[0]))
+		cmd := c.findNext(nextSubCmd)
+		if cmd != nil {
+			return innerfind(cmd, argsMinusFirstX(innerArgs, nextSubCmd))
 		}
-
 		return c, innerArgs
 	}
 
 	commandFound, a := innerfind(c, args)
-	argsWOflags := stripFlags(a, commandFound)
-
-	// no subcommand, always take args
-	if !commandFound.HasSubCommands() {
-		return commandFound, a, nil
+	if commandFound.Args == nil {
+		return commandFound, a, legacyArgs(commandFound, stripFlags(a, commandFound))
 	}
-
-	// root command with subcommands, do subcommand checking
-	if commandFound == c && len(argsWOflags) > 0 {
-		suggestionsString := ""
-		if !c.DisableSuggestions {
-			if c.SuggestionsMinimumDistance <= 0 {
-				c.SuggestionsMinimumDistance = 2
-			}
-			if suggestions := c.SuggestionsFor(argsWOflags[0]); len(suggestions) > 0 {
-				suggestionsString += "\n\nDid you mean this?\n"
-				for _, s := range suggestions {
-					suggestionsString += fmt.Sprintf("\t%v\n", s)
-				}
-			}
-		}
-		return commandFound, a, fmt.Errorf("unknown command %q for %q%s", argsWOflags[0], commandFound.CommandPath(), suggestionsString)
-	}
-
 	return commandFound, a, nil
 }
 
+func (c *Command) findSuggestions(arg string) string {
+	if c.DisableSuggestions {
+		return ""
+	}
+	if c.SuggestionsMinimumDistance <= 0 {
+		c.SuggestionsMinimumDistance = 2
+	}
+	suggestionsString := ""
+	if suggestions := c.SuggestionsFor(arg); len(suggestions) > 0 {
+		suggestionsString += "\n\nDid you mean this?\n"
+		for _, s := range suggestions {
+			suggestionsString += fmt.Sprintf("\t%v\n", s)
+		}
+	}
+	return suggestionsString
+}
+
+func (c *Command) findNext(next string) *Command {
+	matches := make([]*Command, 0)
+	for _, cmd := range c.commands {
+		if cmd.Name() == next || cmd.HasAlias(next) {
+			return cmd
+		}
+		if EnablePrefixMatching && cmd.hasNameOrAliasPrefix(next) {
+			matches = append(matches, cmd)
+		}
+	}
+
+	if len(matches) == 1 {
+		return matches[0]
+	}
+	return nil
+}
+
+// Traverse the command tree to find the command, and parse args for
+// each parent.
+func (c *Command) Traverse(args []string) (*Command, []string, error) {
+	flags := []string{}
+	inFlag := false
+
+	for i, arg := range args {
+		switch {
+		// A long flag with a space separated value
+		case strings.HasPrefix(arg, "--") && !strings.Contains(arg, "="):
+			// TODO: this isn't quite right, we should really check ahead for 'true' or 'false'
+			inFlag = !hasNoOptDefVal(arg[2:], c.Flags())
+			flags = append(flags, arg)
+			continue
+		// A short flag with a space separated value
+		case strings.HasPrefix(arg, "-") && !strings.Contains(arg, "=") && len(arg) == 2 && !shortHasNoOptDefVal(arg[1:], c.Flags()):
+			inFlag = true
+			flags = append(flags, arg)
+			continue
+		// The value for a flag
+		case inFlag:
+			inFlag = false
+			flags = append(flags, arg)
+			continue
+		// A flag without a value, or with an `=` separated value
+		case isFlagArg(arg):
+			flags = append(flags, arg)
+			continue
+		}
+
+		cmd := c.findNext(arg)
+		if cmd == nil {
+			return c, args, nil
+		}
+
+		if err := c.ParseFlags(flags); err != nil {
+			return nil, args, err
+		}
+		return cmd.Traverse(args[i+1:])
+	}
+	return c, args, nil
+}
+
 // SuggestionsFor provides suggestions for the typedName.
 func (c *Command) SuggestionsFor(typedName string) []string {
 	suggestions := []string{}
@@ -624,6 +668,10 @@ func (c *Command) execute(a []string) (err error) {
 		argWoFlags = a
 	}
 
+	if err := c.ValidateArgs(argWoFlags); err != nil {
+		return err
+	}
+
 	for p := c; p != nil; p = p.Parent() {
 		if p.PersistentPreRunE != nil {
 			if err := p.PersistentPreRunE(c, argWoFlags); err != nil {
@@ -643,6 +691,9 @@ func (c *Command) execute(a []string) (err error) {
 		c.PreRun(c, argWoFlags)
 	}
 
+	if err := c.validateRequiredFlags(); err != nil {
+		return err
+	}
 	if c.RunE != nil {
 		if err := c.RunE(c, argWoFlags); err != nil {
 			return err
@@ -711,7 +762,12 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
 		args = c.args
 	}
 
-	cmd, flags, err := c.Find(args)
+	var flags []string
+	if c.TraverseChildren {
+		cmd, flags, err = c.Traverse(args)
+	} else {
+		cmd, flags, err = c.Find(args)
+	}
 	if err != nil {
 		// If found parse to a subcommand and then failed, talk about the subcommand
 		if cmd != nil {
@@ -723,6 +779,7 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
 		}
 		return c, err
 	}
+
 	err = cmd.execute(flags)
 	if err != nil {
 		// Always show help if requested, even if SilenceErrors is in
@@ -747,6 +804,32 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
 	return cmd, err
 }
 
+func (c *Command) ValidateArgs(args []string) error {
+	if c.Args == nil {
+		return nil
+	}
+	return c.Args(c, args)
+}
+
+func (c *Command) validateRequiredFlags() error {
+	flags := c.Flags()
+	missingFlagNames := []string{}
+	flags.VisitAll(func(pflag *flag.Flag) {
+		requiredAnnotation, found := pflag.Annotations[BashCompOneRequiredFlag]
+		if !found {
+			return
+		}
+		if (requiredAnnotation[0] == "true") && !pflag.Changed {
+			missingFlagNames = append(missingFlagNames, pflag.Name)
+		}
+	})
+
+	if len(missingFlagNames) > 0 {
+		return fmt.Errorf(`Required flag(s) "%s" have/has not been set`, strings.Join(missingFlagNames, `", "`))
+	}
+	return nil
+}
+
 // InitDefaultHelpFlag adds default help flag to c.
 // It is called automatically by executing the c or by calling help and usage.
 // If c already has help flag, it will do nothing.
@@ -767,28 +850,28 @@ func (c *Command) InitDefaultHelpFlag() {
 // It is called automatically by executing the c or by calling help and usage.
 // If c already has help command or c has no subcommands, it will do nothing.
 func (c *Command) InitDefaultHelpCmd() {
-	if c.helpCommand != nil || !c.HasSubCommands() {
+	if !c.HasSubCommands() {
 		return
 	}
 
-	c.helpCommand = &Command{
-		Use:   "help [command]",
-		Short: "Help about any command",
-		Long: `Help provides help for any command in the application.
-    Simply type ` + c.Name() + ` help [path to command] for full details.`,
-		PersistentPreRun:  func(cmd *Command, args []string) {},
-		PersistentPostRun: func(cmd *Command, args []string) {},
+	if c.helpCommand == nil {
+		c.helpCommand = &Command{
+			Use:   "help [command]",
+			Short: "Help about any command",
+			Long: `Help provides help for any command in the application.
+Simply type ` + c.Name() + ` help [path to command] for full details.`,
 
-		Run: func(c *Command, args []string) {
-			cmd, _, e := c.Root().Find(args)
-			if cmd == nil || e != nil {
-				c.Printf("Unknown help topic %#q\n", args)
-				c.Root().Usage()
-			} else {
-				cmd.InitDefaultHelpFlag() // make possible 'help' flag to be shown
-				cmd.Help()
-			}
-		},
+			Run: func(c *Command, args []string) {
+				cmd, _, e := c.Root().Find(args)
+				if cmd == nil || e != nil {
+					c.Printf("Unknown help topic %#q\n", args)
+					c.Root().Usage()
+				} else {
+					cmd.InitDefaultHelpFlag() // make possible 'help' flag to be shown
+					cmd.Help()
+				}
+			},
+		}
 	}
 	c.RemoveCommand(c.helpCommand)
 	c.AddCommand(c.helpCommand)
@@ -796,6 +879,7 @@ func (c *Command) InitDefaultHelpCmd() {
 
 // ResetCommands used for testing.
 func (c *Command) ResetCommands() {
+	c.parent = nil
 	c.commands = nil
 	c.helpCommand = nil
 	c.parentsPflags = nil
@@ -961,15 +1045,12 @@ func (c *Command) DebugFlags() {
 
 // Name returns the command's name: the first word in the use line.
 func (c *Command) Name() string {
-	if c.name == "" {
-		name := c.Use
-		i := strings.Index(name, " ")
-		if i >= 0 {
-			name = name[:i]
-		}
-		c.name = name
+	name := c.Use
+	i := strings.Index(name, " ")
+	if i >= 0 {
+		name = name[:i]
 	}
-	return c.name
+	return name
 }
 
 // HasAlias determines if a given string is an alias of the command.
@@ -982,7 +1063,21 @@ func (c *Command) HasAlias(s string) bool {
 	return false
 }
 
-// NameAndAliases returns string containing name and all aliases
+// hasNameOrAliasPrefix returns true if the Name or any of aliases start
+// with prefix
+func (c *Command) hasNameOrAliasPrefix(prefix string) bool {
+	if strings.HasPrefix(c.Name(), prefix) {
+		return true
+	}
+	for _, alias := range c.Aliases {
+		if strings.HasPrefix(alias, prefix) {
+			return true
+		}
+	}
+	return false
+}
+
+// NameAndAliases returns a list of the command name and all aliases
 func (c *Command) NameAndAliases() string {
 	return strings.Join(append([]string{c.Name()}, c.Aliases...), ", ")
 }
@@ -1122,6 +1217,9 @@ func (c *Command) LocalFlags() *flag.FlagSet {
 		c.lflags.SetOutput(c.flagErrorBuf)
 	}
 	c.lflags.SortFlags = c.Flags().SortFlags
+	if c.globNormFunc != nil {
+		c.lflags.SetNormalizeFunc(c.globNormFunc)
+	}
 
 	addToLocal := func(f *flag.Flag) {
 		if c.lflags.Lookup(f.Name) == nil && c.parentsPflags.Lookup(f.Name) == nil {
@@ -1146,6 +1244,10 @@ func (c *Command) InheritedFlags() *flag.FlagSet {
 	}
 
 	local := c.LocalFlags()
+	if c.globNormFunc != nil {
+		c.iflags.SetNormalizeFunc(c.globNormFunc)
+	}
+
 	c.parentsPflags.VisitAll(func(f *flag.Flag) {
 		if c.iflags.Lookup(f.Name) == nil && local.Lookup(f.Name) == nil {
 			c.iflags.AddFlag(f)
@@ -1179,6 +1281,10 @@ func (c *Command) ResetFlags() {
 	c.flags.SetOutput(c.flagErrorBuf)
 	c.pflags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
 	c.pflags.SetOutput(c.flagErrorBuf)
+
+	c.lflags = nil
+	c.iflags = nil
+	c.parentsPflags = nil
 }
 
 // HasFlags checks if the command contains any flags (local plus persistent from the entire structure).
@@ -1249,13 +1355,23 @@ func (c *Command) persistentFlag(name string) (flag *flag.Flag) {
 }
 
 // ParseFlags parses persistent flag tree and local flags.
-func (c *Command) ParseFlags(args []string) (err error) {
+func (c *Command) ParseFlags(args []string) error {
 	if c.DisableFlagParsing {
 		return nil
 	}
+
+	if c.flagErrorBuf == nil {
+		c.flagErrorBuf = new(bytes.Buffer)
+	}
+	beforeErrorBufLen := c.flagErrorBuf.Len()
 	c.mergePersistentFlags()
-	err = c.Flags().Parse(args)
-	return
+	err := c.Flags().Parse(args)
+	// Print warnings if they occurred (e.g. deprecated flag messages).
+	if c.flagErrorBuf.Len()-beforeErrorBufLen > 0 && err == nil {
+		c.Print(c.flagErrorBuf.String())
+	}
+
+	return err
 }
 
 // Parent returns a commands parent command.
@@ -1281,6 +1397,10 @@ func (c *Command) updateParentsPflags() {
 		c.parentsPflags.SortFlags = false
 	}
 
+	if c.globNormFunc != nil {
+		c.parentsPflags.SetNormalizeFunc(c.globNormFunc)
+	}
+
 	c.Root().PersistentFlags().AddFlagSet(flag.CommandLine)
 
 	c.VisitParents(func(parent *Command) {

vendor/github.com/spf13/cobra/command_test.go

@@ -120,7 +120,6 @@ func TestStripFlags(t *testing.T) {
 }
 
 func TestDisableFlagParsing(t *testing.T) {
-	as := []string{"-v", "-race", "-file", "foo.go"}
 	targs := []string{}
 	cmdPrint := &Command{
 		DisableFlagParsing: true,
@@ -128,14 +127,14 @@ func TestDisableFlagParsing(t *testing.T) {
 			targs = args
 		},
 	}
-	osargs := []string{"cmd"}
-	os.Args = append(osargs, as...)
+	args := []string{"cmd", "-v", "-race", "-file", "foo.go"}
+	cmdPrint.SetArgs(args)
 	err := cmdPrint.Execute()
 	if err != nil {
 		t.Error(err)
 	}
-	if !reflect.DeepEqual(as, targs) {
-		t.Errorf("expected: %v, got: %v", as, targs)
+	if !reflect.DeepEqual(args, targs) {
+		t.Errorf("expected: %v, got: %v", args, targs)
 	}
 }
 
@@ -298,3 +297,230 @@ func TestMergeCommandLineToFlags(t *testing.T) {
 	// Reset pflag.CommandLine flagset.
 	pflag.CommandLine = pflag.NewFlagSet(os.Args[0], pflag.ExitOnError)
 }
+
+// TestUseDeprecatedFlags checks,
+// if cobra.Execute() prints a message, if a deprecated flag is used.
+// Related to https://github.com/spf13/cobra/issues/463.
+func TestUseDeprecatedFlags(t *testing.T) {
+	c := &Command{Use: "c", Run: func(*Command, []string) {}}
+	output := new(bytes.Buffer)
+	c.SetOutput(output)
+	c.Flags().BoolP("deprecated", "d", false, "deprecated flag")
+	c.Flags().MarkDeprecated("deprecated", "This flag is deprecated")
+
+	c.SetArgs([]string{"c", "-d"})
+	if err := c.Execute(); err != nil {
+		t.Error("Unexpected error:", err)
+	}
+	if !strings.Contains(output.String(), "This flag is deprecated") {
+		t.Errorf("Expected to contain deprecated message, but got %q", output.String())
+	}
+}
+
+// TestSetHelpCommand checks, if SetHelpCommand works correctly.
+func TestSetHelpCommand(t *testing.T) {
+	c := &Command{Use: "c", Run: func(*Command, []string) {}}
+	output := new(bytes.Buffer)
+	c.SetOutput(output)
+	c.SetArgs([]string{"help"})
+
+	// Help will not be shown, if c has no subcommands.
+	c.AddCommand(&Command{
+		Use: "empty",
+		Run: func(cmd *Command, args []string) {},
+	})
+
+	correctMessage := "WORKS"
+	c.SetHelpCommand(&Command{
+		Use:   "help [command]",
+		Short: "Help about any command",
+		Long: `Help provides help for any command in the application.
+	Simply type ` + c.Name() + ` help [path to command] for full details.`,
+		Run: func(c *Command, args []string) { c.Print(correctMessage) },
+	})
+
+	if err := c.Execute(); err != nil {
+		t.Error("Unexpected error:", err)
+	}
+
+	if output.String() != correctMessage {
+		t.Errorf("Expected to contain %q message, but got %q", correctMessage, output.String())
+	}
+}
+
+func TestTraverseWithParentFlags(t *testing.T) {
+	cmd := &Command{
+		Use:              "do",
+		TraverseChildren: true,
+	}
+	cmd.Flags().String("foo", "", "foo things")
+	cmd.Flags().BoolP("goo", "g", false, "foo things")
+
+	sub := &Command{Use: "next"}
+	sub.Flags().String("add", "", "add things")
+	cmd.AddCommand(sub)
+
+	c, args, err := cmd.Traverse([]string{"-g", "--foo", "ok", "next", "--add"})
+	if err != nil {
+		t.Fatalf("Expected no error: %s", err)
+	}
+	if len(args) != 1 && args[0] != "--add" {
+		t.Fatalf("wrong args %s", args)
+	}
+	if c.Name() != sub.Name() {
+		t.Fatalf("wrong command %q expected %q", c.Name(), sub.Name())
+	}
+}
+
+func TestTraverseNoParentFlags(t *testing.T) {
+	cmd := &Command{
+		Use:              "do",
+		TraverseChildren: true,
+	}
+	cmd.Flags().String("foo", "", "foo things")
+
+	sub := &Command{Use: "next"}
+	sub.Flags().String("add", "", "add things")
+	cmd.AddCommand(sub)
+
+	c, args, err := cmd.Traverse([]string{"next"})
+	if err != nil {
+		t.Fatalf("Expected no error: %s", err)
+	}
+	if len(args) != 0 {
+		t.Fatalf("wrong args %s", args)
+	}
+	if c.Name() != sub.Name() {
+		t.Fatalf("wrong command %q expected %q", c.Name(), sub.Name())
+	}
+}
+
+func TestTraverseWithBadParentFlags(t *testing.T) {
+	cmd := &Command{
+		Use:              "do",
+		TraverseChildren: true,
+	}
+	sub := &Command{Use: "next"}
+	sub.Flags().String("add", "", "add things")
+	cmd.AddCommand(sub)
+
+	expected := "got unknown flag: --add"
+
+	c, _, err := cmd.Traverse([]string{"--add", "ok", "next"})
+	if err == nil || strings.Contains(err.Error(), expected) {
+		t.Fatalf("Expected error %s got %s", expected, err)
+	}
+	if c != nil {
+		t.Fatalf("Expected nil command")
+	}
+}
+
+func TestTraverseWithBadChildFlag(t *testing.T) {
+	cmd := &Command{
+		Use:              "do",
+		TraverseChildren: true,
+	}
+	cmd.Flags().String("foo", "", "foo things")
+
+	sub := &Command{Use: "next"}
+	cmd.AddCommand(sub)
+
+	// Expect no error because the last commands args shouldn't be parsed in
+	// Traverse
+	c, args, err := cmd.Traverse([]string{"next", "--add"})
+	if err != nil {
+		t.Fatalf("Expected no error: %s", err)
+	}
+	if len(args) != 1 && args[0] != "--add" {
+		t.Fatalf("wrong args %s", args)
+	}
+	if c.Name() != sub.Name() {
+		t.Fatalf("wrong command %q expected %q", c.Name(), sub.Name())
+	}
+}
+
+func TestTraverseWithTwoSubcommands(t *testing.T) {
+	cmd := &Command{
+		Use:              "do",
+		TraverseChildren: true,
+	}
+
+	sub := &Command{
+		Use:              "sub",
+		TraverseChildren: true,
+	}
+	cmd.AddCommand(sub)
+
+	subsub := &Command{
+		Use: "subsub",
+	}
+	sub.AddCommand(subsub)
+
+	c, _, err := cmd.Traverse([]string{"sub", "subsub"})
+	if err != nil {
+		t.Fatalf("Expected no error: %s", err)
+	}
+	if c.Name() != subsub.Name() {
+		t.Fatalf("wrong command %q expected %q", c.Name(), subsub.Name())
+	}
+}
+
+func TestRequiredFlags(t *testing.T) {
+	c := &Command{Use: "c", Run: func(*Command, []string) {}}
+	output := new(bytes.Buffer)
+	c.SetOutput(output)
+	c.Flags().String("foo1", "", "required foo1")
+	c.MarkFlagRequired("foo1")
+	c.Flags().String("foo2", "", "required foo2")
+	c.MarkFlagRequired("foo2")
+	c.Flags().String("bar", "", "optional bar")
+
+	expected := fmt.Sprintf("Required flag(s) %q, %q have/has not been set", "foo1", "foo2")
+
+	if err := c.Execute(); err != nil {
+		if err.Error() != expected {
+			t.Errorf("expected %v, got %v", expected, err.Error())
+		}
+	}
+}
+
+func TestPersistentRequiredFlags(t *testing.T) {
+	parent := &Command{Use: "parent", Run: func(*Command, []string) {}}
+	output := new(bytes.Buffer)
+	parent.SetOutput(output)
+	parent.PersistentFlags().String("foo1", "", "required foo1")
+	parent.MarkPersistentFlagRequired("foo1")
+	parent.PersistentFlags().String("foo2", "", "required foo2")
+	parent.MarkPersistentFlagRequired("foo2")
+	parent.Flags().String("foo3", "", "optional foo3")
+
+	child := &Command{Use: "child", Run: func(*Command, []string) {}}
+	child.Flags().String("bar1", "", "required bar1")
+	child.MarkFlagRequired("bar1")
+	child.Flags().String("bar2", "", "required bar2")
+	child.MarkFlagRequired("bar2")
+	child.Flags().String("bar3", "", "optional bar3")
+
+	parent.AddCommand(child)
+	parent.SetArgs([]string{"child"})
+
+	expected := fmt.Sprintf("Required flag(s) %q, %q, %q, %q have/has not been set", "bar1", "bar2", "foo1", "foo2")
+
+	if err := parent.Execute(); err != nil {
+		if err.Error() != expected {
+			t.Errorf("expected %v, got %v", expected, err.Error())
+		}
+	}
+}
+
+// TestUpdateName checks if c.Name() updates on changed c.Use.
+// Related to https://github.com/spf13/cobra/pull/422#discussion_r143918343.
+func TestUpdateName(t *testing.T) {
+	c := &Command{Use: "name xyz"}
+	originalName := c.Name()
+
+	c.Use = "changedName abc"
+	if originalName == c.Name() || c.Name() != "changedName" {
+		t.Error("c.Name() should be updated on changed c.Use")
+	}
+}

vendor/github.com/spf13/cobra/command_win.go

@@ -11,14 +11,8 @@ import (
 
 var preExecHookFn = preExecHook
 
-// enables an information splash screen on Windows if the CLI is started from explorer.exe.
-var MousetrapHelpText string = `This is a command line tool
-
-You need to open cmd.exe and run it from there.
-`
-
 func preExecHook(c *Command) {
-	if mousetrap.StartedByExplorer() {
+	if MousetrapHelpText != "" && mousetrap.StartedByExplorer() {
 		c.Print(MousetrapHelpText)
 		time.Sleep(5 * time.Second)
 		os.Exit(1)

vendor/github.com/spf13/cobra/doc/cmd_test.go

@@ -1,145 +0,0 @@
-package doc
-
-import (
-	"bytes"
-	"fmt"
-	"runtime"
-	"strings"
-	"testing"
-
-	"github.com/spf13/cobra"
-)
-
-var flagb1, flagb2, flagb3, flagbr, flagbp bool
-var flags1, flags2a, flags2b, flags3 string
-var flagi1, flagi2, flagi3, flagir int
-
-const strtwoParentHelp = "help message for parent flag strtwo"
-const strtwoChildHelp = "help message for child flag strtwo"
-
-var cmdEcho = &cobra.Command{
-	Use:     "echo [string to echo]",
-	Aliases: []string{"say"},
-	Short:   "Echo anything to the screen",
-	Long:    `an utterly useless command for testing.`,
-	Example: "Just run cobra-test echo",
-}
-
-var cmdEchoSub = &cobra.Command{
-	Use:   "echosub [string to print]",
-	Short: "second sub command for echo",
-	Long:  `an absolutely utterly useless command for testing gendocs!.`,
-	Run:   func(cmd *cobra.Command, args []string) {},
-}
-
-var cmdDeprecated = &cobra.Command{
-	Use:        "deprecated [can't do anything here]",
-	Short:      "A command which is deprecated",
-	Long:       `an absolutely utterly useless command for testing deprecation!.`,
-	Deprecated: "Please use echo instead",
-}
-
-var cmdTimes = &cobra.Command{
-	Use:              "times [# times] [string to echo]",
-	SuggestFor:       []string{"counts"},
-	Short:            "Echo anything to the screen more times",
-	Long:             `a slightly useless command for testing.`,
-	PersistentPreRun: func(cmd *cobra.Command, args []string) {},
-	Run:              func(cmd *cobra.Command, args []string) {},
-}
-
-var cmdPrint = &cobra.Command{
-	Use:   "print [string to print]",
-	Short: "Print anything to the screen",
-	Long:  `an absolutely utterly useless command for testing.`,
-}
-
-var cmdRootNoRun = &cobra.Command{
-	Use:   "cobra-test",
-	Short: "The root can run its own function",
-	Long:  "The root description for help",
-}
-
-var cmdRootSameName = &cobra.Command{
-	Use:   "print",
-	Short: "Root with the same name as a subcommand",
-	Long:  "The root description for help",
-}
-
-var cmdRootWithRun = &cobra.Command{
-	Use:   "cobra-test",
-	Short: "The root can run its own function",
-	Long:  "The root description for help",
-}
-
-var cmdSubNoRun = &cobra.Command{
-	Use:   "subnorun",
-	Short: "A subcommand without a Run function",
-	Long:  "A long output about a subcommand without a Run function",
-}
-
-var cmdVersion1 = &cobra.Command{
-	Use:   "version",
-	Short: "Print the version number",
-	Long:  `First version of the version command`,
-}
-
-var cmdVersion2 = &cobra.Command{
-	Use:   "version",
-	Short: "Print the version number",
-	Long:  `Second version of the version command`,
-}
-
-func flagInit() {
-	cmdEcho.ResetFlags()
-	cmdPrint.ResetFlags()
-	cmdTimes.ResetFlags()
-	cmdRootNoRun.ResetFlags()
-	cmdRootSameName.ResetFlags()
-	cmdRootWithRun.ResetFlags()
-	cmdSubNoRun.ResetFlags()
-	cmdRootNoRun.PersistentFlags().StringVarP(&flags2a, "strtwo", "t", "two", strtwoParentHelp)
-	cmdEcho.Flags().IntVarP(&flagi1, "intone", "i", 123, "help message for flag intone")
-	cmdTimes.Flags().IntVarP(&flagi2, "inttwo", "j", 234, "help message for flag inttwo")
-	cmdPrint.Flags().IntVarP(&flagi3, "intthree", "i", 345, "help message for flag intthree")
-	cmdEcho.PersistentFlags().StringVarP(&flags1, "strone", "s", "one", "help message for flag strone")
-	cmdEcho.PersistentFlags().BoolVarP(&flagbp, "persistentbool", "p", false, "help message for flag persistentbool")
-	cmdTimes.PersistentFlags().StringVarP(&flags2b, "strtwo", "t", "2", strtwoChildHelp)
-	cmdPrint.PersistentFlags().StringVarP(&flags3, "strthree", "s", "three", "help message for flag strthree")
-	cmdEcho.Flags().BoolVarP(&flagb1, "boolone", "b", true, "help message for flag boolone")
-	cmdTimes.Flags().BoolVarP(&flagb2, "booltwo", "c", false, "help message for flag booltwo")
-	cmdPrint.Flags().BoolVarP(&flagb3, "boolthree", "b", true, "help message for flag boolthree")
-	cmdVersion1.ResetFlags()
-	cmdVersion2.ResetFlags()
-}
-
-func initializeWithRootCmd() *cobra.Command {
-	cmdRootWithRun.ResetCommands()
-	flagInit()
-	cmdRootWithRun.Flags().BoolVarP(&flagbr, "boolroot", "b", false, "help message for flag boolroot")
-	cmdRootWithRun.Flags().IntVarP(&flagir, "introot", "i", 321, "help message for flag introot")
-	return cmdRootWithRun
-}
-
-func checkStringContains(t *testing.T, found, expected string) {
-	if !strings.Contains(found, expected) {
-		logErr(t, found, expected)
-	}
-}
-
-func checkStringOmits(t *testing.T, found, expected string) {
-	if strings.Contains(found, expected) {
-		logErr(t, found, expected)
-	}
-}
-
-func logErr(t *testing.T, found, expected string) {
-	out := new(bytes.Buffer)
-
-	_, _, line, ok := runtime.Caller(2)
-	if ok {
-		fmt.Fprintf(out, "Line: %d ", line)
-	}
-	fmt.Fprintf(out, "Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	t.Errorf(out.String())
-}

vendor/github.com/spf13/cobra/doc/man_docs.go

@@ -1,236 +0,0 @@
-// Copyright 2015 Red Hat Inc. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package doc
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"sort"
-	"strings"
-	"time"
-
-	"github.com/cpuguy83/go-md2man/md2man"
-	"github.com/spf13/cobra"
-	"github.com/spf13/pflag"
-)
-
-// GenManTree will generate a man page for this command and all descendants
-// in the directory given. The header may be nil. This function may not work
-// correctly if your command names have `-` in them. If you have `cmd` with two
-// subcmds, `sub` and `sub-third`, and `sub` has a subcommand called `third`
-// it is undefined which help output will be in the file `cmd-sub-third.1`.
-func GenManTree(cmd *cobra.Command, header *GenManHeader, dir string) error {
-	return GenManTreeFromOpts(cmd, GenManTreeOptions{
-		Header:           header,
-		Path:             dir,
-		CommandSeparator: "-",
-	})
-}
-
-// GenManTreeFromOpts generates a man page for the command and all descendants.
-// The pages are written to the opts.Path directory.
-func GenManTreeFromOpts(cmd *cobra.Command, opts GenManTreeOptions) error {
-	header := opts.Header
-	if header == nil {
-		header = &GenManHeader{}
-	}
-	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-			continue
-		}
-		if err := GenManTreeFromOpts(c, opts); err != nil {
-			return err
-		}
-	}
-	section := "1"
-	if header.Section != "" {
-		section = header.Section
-	}
-
-	separator := "_"
-	if opts.CommandSeparator != "" {
-		separator = opts.CommandSeparator
-	}
-	basename := strings.Replace(cmd.CommandPath(), " ", separator, -1)
-	filename := filepath.Join(opts.Path, basename+"."+section)
-	f, err := os.Create(filename)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	headerCopy := *header
-	return GenMan(cmd, &headerCopy, f)
-}
-
-// GenManTreeOptions is the options for generating the man pages.
-// Used only in GenManTreeFromOpts.
-type GenManTreeOptions struct {
-	Header           *GenManHeader
-	Path             string
-	CommandSeparator string
-}
-
-// GenManHeader is a lot like the .TH header at the start of man pages. These
-// include the title, section, date, source, and manual. We will use the
-// current time if Date if unset and will use "Auto generated by spf13/cobra"
-// if the Source is unset.
-type GenManHeader struct {
-	Title   string
-	Section string
-	Date    *time.Time
-	date    string
-	Source  string
-	Manual  string
-}
-
-// GenMan will generate a man page for the given command and write it to
-// w. The header argument may be nil, however obviously w may not.
-func GenMan(cmd *cobra.Command, header *GenManHeader, w io.Writer) error {
-	if header == nil {
-		header = &GenManHeader{}
-	}
-	fillHeader(header, cmd.CommandPath())
-
-	b := genMan(cmd, header)
-	_, err := w.Write(md2man.Render(b))
-	return err
-}
-
-func fillHeader(header *GenManHeader, name string) {
-	if header.Title == "" {
-		header.Title = strings.ToUpper(strings.Replace(name, " ", "\\-", -1))
-	}
-	if header.Section == "" {
-		header.Section = "1"
-	}
-	if header.Date == nil {
-		now := time.Now()
-		header.Date = &now
-	}
-	header.date = (*header.Date).Format("Jan 2006")
-	if header.Source == "" {
-		header.Source = "Auto generated by spf13/cobra"
-	}
-}
-
-func manPreamble(buf *bytes.Buffer, header *GenManHeader, cmd *cobra.Command, dashedName string) {
-	description := cmd.Long
-	if len(description) == 0 {
-		description = cmd.Short
-	}
-
-	buf.WriteString(fmt.Sprintf(`%% %s(%s)%s
-%% %s
-%% %s
-# NAME
-`, header.Title, header.Section, header.date, header.Source, header.Manual))
-	buf.WriteString(fmt.Sprintf("%s \\- %s\n\n", dashedName, cmd.Short))
-	buf.WriteString("# SYNOPSIS\n")
-	buf.WriteString(fmt.Sprintf("**%s**\n\n", cmd.UseLine()))
-	buf.WriteString("# DESCRIPTION\n")
-	buf.WriteString(description + "\n\n")
-}
-
-func manPrintFlags(buf *bytes.Buffer, flags *pflag.FlagSet) {
-	flags.VisitAll(func(flag *pflag.Flag) {
-		if len(flag.Deprecated) > 0 || flag.Hidden {
-			return
-		}
-		format := ""
-		if len(flag.Shorthand) > 0 && len(flag.ShorthandDeprecated) == 0 {
-			format = fmt.Sprintf("**-%s**, **--%s**", flag.Shorthand, flag.Name)
-		} else {
-			format = fmt.Sprintf("**--%s**", flag.Name)
-		}
-		if len(flag.NoOptDefVal) > 0 {
-			format += "["
-		}
-		if flag.Value.Type() == "string" {
-			// put quotes on the value
-			format += "=%q"
-		} else {
-			format += "=%s"
-		}
-		if len(flag.NoOptDefVal) > 0 {
-			format += "]"
-		}
-		format += "\n\t%s\n\n"
-		buf.WriteString(fmt.Sprintf(format, flag.DefValue, flag.Usage))
-	})
-}
-
-func manPrintOptions(buf *bytes.Buffer, command *cobra.Command) {
-	flags := command.NonInheritedFlags()
-	if flags.HasFlags() {
-		buf.WriteString("# OPTIONS\n")
-		manPrintFlags(buf, flags)
-		buf.WriteString("\n")
-	}
-	flags = command.InheritedFlags()
-	if flags.HasFlags() {
-		buf.WriteString("# OPTIONS INHERITED FROM PARENT COMMANDS\n")
-		manPrintFlags(buf, flags)
-		buf.WriteString("\n")
-	}
-}
-
-func genMan(cmd *cobra.Command, header *GenManHeader) []byte {
-	cmd.InitDefaultHelpCmd()
-	cmd.InitDefaultHelpFlag()
-
-	// something like `rootcmd-subcmd1-subcmd2`
-	dashCommandName := strings.Replace(cmd.CommandPath(), " ", "-", -1)
-
-	buf := new(bytes.Buffer)
-
-	manPreamble(buf, header, cmd, dashCommandName)
-	manPrintOptions(buf, cmd)
-	if len(cmd.Example) > 0 {
-		buf.WriteString("# EXAMPLE\n")
-		buf.WriteString(fmt.Sprintf("```\n%s\n```\n", cmd.Example))
-	}
-	if hasSeeAlso(cmd) {
-		buf.WriteString("# SEE ALSO\n")
-		seealsos := make([]string, 0)
-		if cmd.HasParent() {
-			parentPath := cmd.Parent().CommandPath()
-			dashParentPath := strings.Replace(parentPath, " ", "-", -1)
-			seealso := fmt.Sprintf("**%s(%s)**", dashParentPath, header.Section)
-			seealsos = append(seealsos, seealso)
-			cmd.VisitParents(func(c *cobra.Command) {
-				if c.DisableAutoGenTag {
-					cmd.DisableAutoGenTag = c.DisableAutoGenTag
-				}
-			})
-		}
-		children := cmd.Commands()
-		sort.Sort(byName(children))
-		for _, c := range children {
-			if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-				continue
-			}
-			seealso := fmt.Sprintf("**%s-%s(%s)**", dashCommandName, c.Name(), header.Section)
-			seealsos = append(seealsos, seealso)
-		}
-		buf.WriteString(strings.Join(seealsos, ", ") + "\n")
-	}
-	if !cmd.DisableAutoGenTag {
-		buf.WriteString(fmt.Sprintf("# HISTORY\n%s Auto generated by spf13/cobra\n", header.Date.Format("2-Jan-2006")))
-	}
-	return buf.Bytes()
-}

vendor/github.com/spf13/cobra/doc/man_docs.md

@@ -1,31 +0,0 @@
-# Generating Man Pages For Your Own cobra.Command
-
-Generating man pages from a cobra command is incredibly easy. An example is as follows:
-
-```go
-package main
-
-import (
-	"log"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	cmd := &cobra.Command{
-		Use:   "test",
-		Short: "my test program",
-	}
-	header := &doc.GenManHeader{
-		Title: "MINE",
-		Section: "3",
-	}
-	err := doc.GenManTree(cmd, header, "/tmp")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-That will get you a man page `/tmp/test.3`

vendor/github.com/spf13/cobra/doc/man_docs_test.go

@@ -1,216 +0,0 @@
-package doc
-
-import (
-	"bufio"
-	"bytes"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-
-	"github.com/spf13/cobra"
-)
-
-func translate(in string) string {
-	return strings.Replace(in, "-", "\\-", -1)
-}
-
-func TestGenManDoc(t *testing.T) {
-	c := initializeWithRootCmd()
-	// Need two commands to run the command alphabetical sort
-	cmdEcho.AddCommand(cmdTimes, cmdEchoSub, cmdDeprecated)
-	c.AddCommand(cmdPrint, cmdEcho)
-	cmdRootWithRun.PersistentFlags().StringVarP(&flags2a, "rootflag", "r", "two", strtwoParentHelp)
-
-	out := new(bytes.Buffer)
-
-	header := &GenManHeader{
-		Title:   "Project",
-		Section: "2",
-	}
-	// We generate on a subcommand so we have both subcommands and parents
-	if err := GenMan(cmdEcho, header, out); err != nil {
-		t.Fatal(err)
-	}
-	found := out.String()
-
-	// Make sure parent has - in CommandPath() in SEE ALSO:
-	parentPath := cmdEcho.Parent().CommandPath()
-	dashParentPath := strings.Replace(parentPath, " ", "-", -1)
-	expected := translate(dashParentPath)
-	expected = expected + "(" + header.Section + ")"
-	checkStringContains(t, found, expected)
-
-	// Our description
-	expected = translate(cmdEcho.Name())
-	checkStringContains(t, found, expected)
-
-	// Better have our example
-	expected = translate(cmdEcho.Name())
-	checkStringContains(t, found, expected)
-
-	// A local flag
-	expected = "boolone"
-	checkStringContains(t, found, expected)
-
-	// persistent flag on parent
-	expected = "rootflag"
-	checkStringContains(t, found, expected)
-
-	// We better output info about our parent
-	expected = translate(cmdRootWithRun.Name())
-	checkStringContains(t, found, expected)
-
-	// And about subcommands
-	expected = translate(cmdEchoSub.Name())
-	checkStringContains(t, found, expected)
-
-	unexpected := translate(cmdDeprecated.Name())
-	checkStringOmits(t, found, unexpected)
-
-	// auto generated
-	expected = translate("Auto generated")
-	checkStringContains(t, found, expected)
-}
-
-func TestGenManNoGenTag(t *testing.T) {
-	c := initializeWithRootCmd()
-	// Need two commands to run the command alphabetical sort
-	cmdEcho.AddCommand(cmdTimes, cmdEchoSub, cmdDeprecated)
-	c.AddCommand(cmdPrint, cmdEcho)
-	cmdRootWithRun.PersistentFlags().StringVarP(&flags2a, "rootflag", "r", "two", strtwoParentHelp)
-	cmdEcho.DisableAutoGenTag = true
-	out := new(bytes.Buffer)
-
-	header := &GenManHeader{
-		Title:   "Project",
-		Section: "2",
-	}
-	// We generate on a subcommand so we have both subcommands and parents
-	if err := GenMan(cmdEcho, header, out); err != nil {
-		t.Fatal(err)
-	}
-	found := out.String()
-
-	unexpected := translate("#HISTORY")
-	checkStringOmits(t, found, unexpected)
-}
-
-func TestGenManSeeAlso(t *testing.T) {
-	noop := func(cmd *cobra.Command, args []string) {}
-
-	top := &cobra.Command{Use: "top", Run: noop}
-	aaa := &cobra.Command{Use: "aaa", Run: noop, Hidden: true} // #229
-	bbb := &cobra.Command{Use: "bbb", Run: noop}
-	ccc := &cobra.Command{Use: "ccc", Run: noop}
-	top.AddCommand(aaa, bbb, ccc)
-
-	out := new(bytes.Buffer)
-	header := &GenManHeader{}
-	if err := GenMan(top, header, out); err != nil {
-		t.Fatal(err)
-	}
-
-	scanner := bufio.NewScanner(out)
-
-	if err := AssertLineFound(scanner, ".SH SEE ALSO"); err != nil {
-		t.Fatal(fmt.Errorf("Couldn't find SEE ALSO section header: %s", err.Error()))
-	}
-
-	if err := AssertNextLineEquals(scanner, ".PP"); err != nil {
-		t.Fatal(fmt.Errorf("First line after SEE ALSO wasn't break-indent: %s", err.Error()))
-	}
-
-	if err := AssertNextLineEquals(scanner, `\fBtop\-bbb(1)\fP, \fBtop\-ccc(1)\fP`); err != nil {
-		t.Fatal(fmt.Errorf("Second line after SEE ALSO wasn't correct: %s", err.Error()))
-	}
-}
-
-func TestManPrintFlagsHidesShortDeperecated(t *testing.T) {
-	cmd := &cobra.Command{}
-	flags := cmd.Flags()
-	flags.StringP("foo", "f", "default", "Foo flag")
-	flags.MarkShorthandDeprecated("foo", "don't use it no more")
-
-	out := new(bytes.Buffer)
-	manPrintFlags(out, flags)
-
-	expected := "**--foo**=\"default\"\n\tFoo flag\n\n"
-	if out.String() != expected {
-		t.Fatalf("Expected %s, but got %s", expected, out.String())
-	}
-}
-
-func TestGenManTree(t *testing.T) {
-	cmd := &cobra.Command{
-		Use: "do [OPTIONS] arg1 arg2",
-	}
-	header := &GenManHeader{Section: "2"}
-	tmpdir, err := ioutil.TempDir("", "test-gen-man-tree")
-	if err != nil {
-		t.Fatalf("Failed to create tmpdir: %s", err.Error())
-	}
-	defer os.RemoveAll(tmpdir)
-
-	if err := GenManTree(cmd, header, tmpdir); err != nil {
-		t.Fatalf("GenManTree failed: %s", err.Error())
-	}
-
-	if _, err := os.Stat(filepath.Join(tmpdir, "do.2")); err != nil {
-		t.Fatalf("Expected file 'do.2' to exist")
-	}
-
-	if header.Title != "" {
-		t.Fatalf("Expected header.Title to be unmodified")
-	}
-}
-
-func AssertLineFound(scanner *bufio.Scanner, expectedLine string) error {
-	for scanner.Scan() {
-		line := scanner.Text()
-		if line == expectedLine {
-			return nil
-		}
-	}
-
-	if err := scanner.Err(); err != nil {
-		return fmt.Errorf("AssertLineFound: scan failed: %s", err.Error())
-	}
-
-	return fmt.Errorf("AssertLineFound: hit EOF before finding %#v", expectedLine)
-}
-
-func AssertNextLineEquals(scanner *bufio.Scanner, expectedLine string) error {
-	if scanner.Scan() {
-		line := scanner.Text()
-		if line == expectedLine {
-			return nil
-		}
-		return fmt.Errorf("AssertNextLineEquals: got %#v, not %#v", line, expectedLine)
-	}
-
-	if err := scanner.Err(); err != nil {
-		return fmt.Errorf("AssertNextLineEquals: scan failed: %s", err.Error())
-	}
-
-	return fmt.Errorf("AssertNextLineEquals: hit EOF before finding %#v", expectedLine)
-}
-
-func BenchmarkGenManToFile(b *testing.B) {
-	c := initializeWithRootCmd()
-	file, err := ioutil.TempFile("", "")
-	if err != nil {
-		b.Fatal(err)
-	}
-	defer os.Remove(file.Name())
-	defer file.Close()
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		if err := GenMan(c, nil, file); err != nil {
-			b.Fatal(err)
-		}
-	}
-}

vendor/github.com/spf13/cobra/doc/man_examples_test.go

@@ -1,35 +0,0 @@
-package doc_test
-
-import (
-	"bytes"
-	"fmt"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/cobra/doc"
-)
-
-func ExampleGenManTree() {
-	cmd := &cobra.Command{
-		Use:   "test",
-		Short: "my test program",
-	}
-	header := &doc.GenManHeader{
-		Title:   "MINE",
-		Section: "3",
-	}
-	doc.GenManTree(cmd, header, "/tmp")
-}
-
-func ExampleGenMan() {
-	cmd := &cobra.Command{
-		Use:   "test",
-		Short: "my test program",
-	}
-	header := &doc.GenManHeader{
-		Title:   "MINE",
-		Section: "3",
-	}
-	out := new(bytes.Buffer)
-	doc.GenMan(cmd, header, out)
-	fmt.Print(out.String())
-}

vendor/github.com/spf13/cobra/doc/md_docs.go

@@ -1,159 +0,0 @@
-//Copyright 2015 Red Hat Inc. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package doc
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"sort"
-	"strings"
-	"time"
-
-	"github.com/spf13/cobra"
-)
-
-func printOptions(buf *bytes.Buffer, cmd *cobra.Command, name string) error {
-	flags := cmd.NonInheritedFlags()
-	flags.SetOutput(buf)
-	if flags.HasFlags() {
-		buf.WriteString("### Options\n\n```\n")
-		flags.PrintDefaults()
-		buf.WriteString("```\n\n")
-	}
-
-	parentFlags := cmd.InheritedFlags()
-	parentFlags.SetOutput(buf)
-	if parentFlags.HasFlags() {
-		buf.WriteString("### Options inherited from parent commands\n\n```\n")
-		parentFlags.PrintDefaults()
-		buf.WriteString("```\n\n")
-	}
-	return nil
-}
-
-// GenMarkdown creates markdown output.
-func GenMarkdown(cmd *cobra.Command, w io.Writer) error {
-	return GenMarkdownCustom(cmd, w, func(s string) string { return s })
-}
-
-// GenMarkdownCustom creates custom markdown output.
-func GenMarkdownCustom(cmd *cobra.Command, w io.Writer, linkHandler func(string) string) error {
-	cmd.InitDefaultHelpCmd()
-	cmd.InitDefaultHelpFlag()
-
-	buf := new(bytes.Buffer)
-	name := cmd.CommandPath()
-
-	short := cmd.Short
-	long := cmd.Long
-	if len(long) == 0 {
-		long = short
-	}
-
-	buf.WriteString("## " + name + "\n\n")
-	buf.WriteString(short + "\n\n")
-	buf.WriteString("### Synopsis\n\n")
-	buf.WriteString("\n" + long + "\n\n")
-
-	if cmd.Runnable() {
-		buf.WriteString(fmt.Sprintf("```\n%s\n```\n\n", cmd.UseLine()))
-	}
-
-	if len(cmd.Example) > 0 {
-		buf.WriteString("### Examples\n\n")
-		buf.WriteString(fmt.Sprintf("```\n%s\n```\n\n", cmd.Example))
-	}
-
-	if err := printOptions(buf, cmd, name); err != nil {
-		return err
-	}
-	if hasSeeAlso(cmd) {
-		buf.WriteString("### SEE ALSO\n")
-		if cmd.HasParent() {
-			parent := cmd.Parent()
-			pname := parent.CommandPath()
-			link := pname + ".md"
-			link = strings.Replace(link, " ", "_", -1)
-			buf.WriteString(fmt.Sprintf("* [%s](%s)\t - %s\n", pname, linkHandler(link), parent.Short))
-			cmd.VisitParents(func(c *cobra.Command) {
-				if c.DisableAutoGenTag {
-					cmd.DisableAutoGenTag = c.DisableAutoGenTag
-				}
-			})
-		}
-
-		children := cmd.Commands()
-		sort.Sort(byName(children))
-
-		for _, child := range children {
-			if !child.IsAvailableCommand() || child.IsAdditionalHelpTopicCommand() {
-				continue
-			}
-			cname := name + " " + child.Name()
-			link := cname + ".md"
-			link = strings.Replace(link, " ", "_", -1)
-			buf.WriteString(fmt.Sprintf("* [%s](%s)\t - %s\n", cname, linkHandler(link), child.Short))
-		}
-		buf.WriteString("\n")
-	}
-	if !cmd.DisableAutoGenTag {
-		buf.WriteString("###### Auto generated by spf13/cobra on " + time.Now().Format("2-Jan-2006") + "\n")
-	}
-	_, err := buf.WriteTo(w)
-	return err
-}
-
-// GenMarkdownTree will generate a markdown page for this command and all
-// descendants in the directory given. The header may be nil.
-// This function may not work correctly if your command names have `-` in them.
-// If you have `cmd` with two subcmds, `sub` and `sub-third`,
-// and `sub` has a subcommand called `third`, it is undefined which
-// help output will be in the file `cmd-sub-third.1`.
-func GenMarkdownTree(cmd *cobra.Command, dir string) error {
-	identity := func(s string) string { return s }
-	emptyStr := func(s string) string { return "" }
-	return GenMarkdownTreeCustom(cmd, dir, emptyStr, identity)
-}
-
-// GenMarkdownTreeCustom is the the same as GenMarkdownTree, but
-// with custom filePrepender and linkHandler.
-func GenMarkdownTreeCustom(cmd *cobra.Command, dir string, filePrepender, linkHandler func(string) string) error {
-	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-			continue
-		}
-		if err := GenMarkdownTreeCustom(c, dir, filePrepender, linkHandler); err != nil {
-			return err
-		}
-	}
-
-	basename := strings.Replace(cmd.CommandPath(), " ", "_", -1) + ".md"
-	filename := filepath.Join(dir, basename)
-	f, err := os.Create(filename)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	if _, err := io.WriteString(f, filePrepender(filename)); err != nil {
-		return err
-	}
-	if err := GenMarkdownCustom(cmd, f, linkHandler); err != nil {
-		return err
-	}
-	return nil
-}

vendor/github.com/spf13/cobra/doc/md_docs.md

@@ -1,115 +0,0 @@
-# Generating Markdown Docs For Your Own cobra.Command
-
-Generating man pages from a cobra command is incredibly easy. An example is as follows:
-
-```go
-package main
-
-import (
-	"log"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	cmd := &cobra.Command{
-		Use:   "test",
-		Short: "my test program",
-	}
-	err := doc.GenMarkdownTree(cmd, "/tmp")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-That will get you a Markdown document `/tmp/test.md`
-
-## Generate markdown docs for the entire command tree
-
-This program can actually generate docs for the kubectl command in the kubernetes project
-
-```go
-package main
-
-import (
-	"log"
-	"io/ioutil"
-	"os"
-
-	"k8s.io/kubernetes/pkg/kubectl/cmd"
-	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
-
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	kubectl := cmd.NewKubectlCommand(cmdutil.NewFactory(nil), os.Stdin, ioutil.Discard, ioutil.Discard)
-	err := doc.GenMarkdownTree(kubectl, "./")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-This will generate a whole series of files, one for each command in the tree, in the directory specified (in this case "./")
-
-## Generate markdown docs for a single command
-
-You may wish to have more control over the output, or only generate for a single command, instead of the entire command tree. If this is the case you may prefer to `GenMarkdown` instead of `GenMarkdownTree`
-
-```go
-	out := new(bytes.Buffer)
-	err := doc.GenMarkdown(cmd, out)
-	if err != nil {
-		log.Fatal(err)
-	}
-```
-
-This will write the markdown doc for ONLY "cmd" into the out, buffer.
-
-## Customize the output
-
-Both `GenMarkdown` and `GenMarkdownTree` have alternate versions with callbacks to get some control of the output:
-
-```go
-func GenMarkdownTreeCustom(cmd *Command, dir string, filePrepender, linkHandler func(string) string) error {
-	//...
-}
-```
-
-```go
-func GenMarkdownCustom(cmd *Command, out *bytes.Buffer, linkHandler func(string) string) error {
-	//...
-}
-```
-
-The `filePrepender` will prepend the return value given the full filepath to the rendered Markdown file. A common use case is to add front matter to use the generated documentation with [Hugo](http://gohugo.io/):
-
-```go
-const fmTemplate = `---
-date: %s
-title: "%s"
-slug: %s
-url: %s
----
-`
-
-filePrepender := func(filename string) string {
-	now := time.Now().Format(time.RFC3339)
-	name := filepath.Base(filename)
-	base := strings.TrimSuffix(name, path.Ext(name))
-	url := "/commands/" + strings.ToLower(base) + "/"
-	return fmt.Sprintf(fmTemplate, now, strings.Replace(base, "_", " ", -1), base, url)
-}
-```
-
-The `linkHandler` can be used to customize the rendered internal links to the commands, given a filename:
-
-```go
-linkHandler := func(name string) string {
-	base := strings.TrimSuffix(name, path.Ext(name))
-	return "/commands/" + strings.ToLower(base) + "/"
-}
-```

vendor/github.com/spf13/cobra/doc/md_docs_test.go

@@ -1,124 +0,0 @@
-package doc
-
-import (
-	"bytes"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-
-	"github.com/spf13/cobra"
-)
-
-func TestGenMdDoc(t *testing.T) {
-	c := initializeWithRootCmd()
-	// Need two commands to run the command alphabetical sort
-	cmdEcho.AddCommand(cmdTimes, cmdEchoSub, cmdDeprecated)
-	c.AddCommand(cmdPrint, cmdEcho)
-	cmdRootWithRun.PersistentFlags().StringVarP(&flags2a, "rootflag", "r", "two", strtwoParentHelp)
-
-	out := new(bytes.Buffer)
-
-	// We generate on s subcommand so we have both subcommands and parents
-	if err := GenMarkdown(cmdEcho, out); err != nil {
-		t.Fatal(err)
-	}
-	found := out.String()
-
-	// Our description
-	expected := cmdEcho.Long
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	// Better have our example
-	expected = cmdEcho.Example
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	// A local flag
-	expected = "boolone"
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	// persistent flag on parent
-	expected = "rootflag"
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	// We better output info about our parent
-	expected = cmdRootWithRun.Short
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	// And about subcommands
-	expected = cmdEchoSub.Short
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	unexpected := cmdDeprecated.Short
-	if strings.Contains(found, unexpected) {
-		t.Errorf("Unexpected response.\nFound: %v\nBut should not have!!\n", unexpected)
-	}
-}
-
-func TestGenMdNoTag(t *testing.T) {
-	c := initializeWithRootCmd()
-	// Need two commands to run the command alphabetical sort
-	cmdEcho.AddCommand(cmdTimes, cmdEchoSub, cmdDeprecated)
-	c.AddCommand(cmdPrint, cmdEcho)
-	c.DisableAutoGenTag = true
-	cmdRootWithRun.PersistentFlags().StringVarP(&flags2a, "rootflag", "r", "two", strtwoParentHelp)
-	out := new(bytes.Buffer)
-
-	if err := GenMarkdown(c, out); err != nil {
-		t.Fatal(err)
-	}
-	found := out.String()
-
-	unexpected := "Auto generated"
-	checkStringOmits(t, found, unexpected)
-
-}
-
-func TestGenMdTree(t *testing.T) {
-	cmd := &cobra.Command{
-		Use: "do [OPTIONS] arg1 arg2",
-	}
-	tmpdir, err := ioutil.TempDir("", "test-gen-md-tree")
-	if err != nil {
-		t.Fatalf("Failed to create tmpdir: %s", err.Error())
-	}
-	defer os.RemoveAll(tmpdir)
-
-	if err := GenMarkdownTree(cmd, tmpdir); err != nil {
-		t.Fatalf("GenMarkdownTree failed: %s", err.Error())
-	}
-
-	if _, err := os.Stat(filepath.Join(tmpdir, "do.md")); err != nil {
-		t.Fatalf("Expected file 'do.md' to exist")
-	}
-}
-
-func BenchmarkGenMarkdownToFile(b *testing.B) {
-	c := initializeWithRootCmd()
-	file, err := ioutil.TempFile("", "")
-	if err != nil {
-		b.Fatal(err)
-	}
-	defer os.Remove(file.Name())
-	defer file.Close()
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		if err := GenMarkdown(c, file); err != nil {
-			b.Fatal(err)
-		}
-	}
-}

vendor/github.com/spf13/cobra/doc/util.go

@@ -1,51 +0,0 @@
-// Copyright 2015 Red Hat Inc. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package doc
-
-import (
-	"strings"
-
-	"github.com/spf13/cobra"
-)
-
-// Test to see if we have a reason to print See Also information in docs
-// Basically this is a test for a parent commend or a subcommand which is
-// both not deprecated and not the autogenerated help command.
-func hasSeeAlso(cmd *cobra.Command) bool {
-	if cmd.HasParent() {
-		return true
-	}
-	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-			continue
-		}
-		return true
-	}
-	return false
-}
-
-// Temporary workaround for yaml lib generating incorrect yaml with long strings
-// that do not contain \n.
-func forceMultiLine(s string) string {
-	if len(s) > 60 && !strings.Contains(s, "\n") {
-		s = s + "\n"
-	}
-	return s
-}
-
-type byName []*cobra.Command
-
-func (s byName) Len() int           { return len(s) }
-func (s byName) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
-func (s byName) Less(i, j int) bool { return s[i].Name() < s[j].Name() }

vendor/github.com/spf13/cobra/doc/yaml_docs.go

@@ -1,169 +0,0 @@
-// Copyright 2016 French Ben. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package doc
-
-import (
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"sort"
-	"strings"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/pflag"
-	"gopkg.in/yaml.v2"
-)
-
-type cmdOption struct {
-	Name         string
-	Shorthand    string `yaml:",omitempty"`
-	DefaultValue string `yaml:"default_value,omitempty"`
-	Usage        string `yaml:",omitempty"`
-}
-
-type cmdDoc struct {
-	Name             string
-	Synopsis         string      `yaml:",omitempty"`
-	Description      string      `yaml:",omitempty"`
-	Options          []cmdOption `yaml:",omitempty"`
-	InheritedOptions []cmdOption `yaml:"inherited_options,omitempty"`
-	Example          string      `yaml:",omitempty"`
-	SeeAlso          []string    `yaml:"see_also,omitempty"`
-}
-
-// GenYamlTree creates yaml structured ref files for this command and all descendants
-// in the directory given. This function may not work
-// correctly if your command names have `-` in them. If you have `cmd` with two
-// subcmds, `sub` and `sub-third`, and `sub` has a subcommand called `third`
-// it is undefined which help output will be in the file `cmd-sub-third.1`.
-func GenYamlTree(cmd *cobra.Command, dir string) error {
-	identity := func(s string) string { return s }
-	emptyStr := func(s string) string { return "" }
-	return GenYamlTreeCustom(cmd, dir, emptyStr, identity)
-}
-
-// GenYamlTreeCustom creates yaml structured ref files.
-func GenYamlTreeCustom(cmd *cobra.Command, dir string, filePrepender, linkHandler func(string) string) error {
-	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-			continue
-		}
-		if err := GenYamlTreeCustom(c, dir, filePrepender, linkHandler); err != nil {
-			return err
-		}
-	}
-
-	basename := strings.Replace(cmd.CommandPath(), " ", "_", -1) + ".yaml"
-	filename := filepath.Join(dir, basename)
-	f, err := os.Create(filename)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	if _, err := io.WriteString(f, filePrepender(filename)); err != nil {
-		return err
-	}
-	if err := GenYamlCustom(cmd, f, linkHandler); err != nil {
-		return err
-	}
-	return nil
-}
-
-// GenYaml creates yaml output.
-func GenYaml(cmd *cobra.Command, w io.Writer) error {
-	return GenYamlCustom(cmd, w, func(s string) string { return s })
-}
-
-// GenYamlCustom creates custom yaml output.
-func GenYamlCustom(cmd *cobra.Command, w io.Writer, linkHandler func(string) string) error {
-	cmd.InitDefaultHelpCmd()
-	cmd.InitDefaultHelpFlag()
-
-	yamlDoc := cmdDoc{}
-	yamlDoc.Name = cmd.CommandPath()
-
-	yamlDoc.Synopsis = forceMultiLine(cmd.Short)
-	yamlDoc.Description = forceMultiLine(cmd.Long)
-
-	if len(cmd.Example) > 0 {
-		yamlDoc.Example = cmd.Example
-	}
-
-	flags := cmd.NonInheritedFlags()
-	if flags.HasFlags() {
-		yamlDoc.Options = genFlagResult(flags)
-	}
-	flags = cmd.InheritedFlags()
-	if flags.HasFlags() {
-		yamlDoc.InheritedOptions = genFlagResult(flags)
-	}
-
-	if hasSeeAlso(cmd) {
-		result := []string{}
-		if cmd.HasParent() {
-			parent := cmd.Parent()
-			result = append(result, parent.CommandPath()+" - "+parent.Short)
-		}
-		children := cmd.Commands()
-		sort.Sort(byName(children))
-		for _, child := range children {
-			if !child.IsAvailableCommand() || child.IsAdditionalHelpTopicCommand() {
-				continue
-			}
-			result = append(result, child.Name()+" - "+child.Short)
-		}
-		yamlDoc.SeeAlso = result
-	}
-
-	final, err := yaml.Marshal(&yamlDoc)
-	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
-
-	if _, err := w.Write(final); err != nil {
-		return err
-	}
-	return nil
-}
-
-func genFlagResult(flags *pflag.FlagSet) []cmdOption {
-	var result []cmdOption
-
-	flags.VisitAll(func(flag *pflag.Flag) {
-		// Todo, when we mark a shorthand is deprecated, but specify an empty message.
-		// The flag.ShorthandDeprecated is empty as the shorthand is deprecated.
-		// Using len(flag.ShorthandDeprecated) > 0 can't handle this, others are ok.
-		if !(len(flag.ShorthandDeprecated) > 0) && len(flag.Shorthand) > 0 {
-			opt := cmdOption{
-				flag.Name,
-				flag.Shorthand,
-				flag.DefValue,
-				forceMultiLine(flag.Usage),
-			}
-			result = append(result, opt)
-		} else {
-			opt := cmdOption{
-				Name:         flag.Name,
-				DefaultValue: forceMultiLine(flag.DefValue),
-				Usage:        forceMultiLine(flag.Usage),
-			}
-			result = append(result, opt)
-		}
-	})
-
-	return result
-}

vendor/github.com/spf13/cobra/doc/yaml_docs.md

@@ -1,112 +0,0 @@
-# Generating Yaml Docs For Your Own cobra.Command
-
-Generating yaml files from a cobra command is incredibly easy. An example is as follows:
-
-```go
-package main
-
-import (
-	"log"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	cmd := &cobra.Command{
-		Use:   "test",
-		Short: "my test program",
-	}
-	err := doc.GenYamlTree(cmd, "/tmp")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-That will get you a Yaml document `/tmp/test.yaml`
-
-## Generate yaml docs for the entire command tree
-
-This program can actually generate docs for the kubectl command in the kubernetes project
-
-```go
-package main
-
-import (
-	"io/ioutil"
-	"log"
-	"os"
-
-	"k8s.io/kubernetes/pkg/kubectl/cmd"
-	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
-
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	kubectl := cmd.NewKubectlCommand(cmdutil.NewFactory(nil), os.Stdin, ioutil.Discard, ioutil.Discard)
-	err := doc.GenYamlTree(kubectl, "./")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-This will generate a whole series of files, one for each command in the tree, in the directory specified (in this case "./")
-
-## Generate yaml docs for a single command
-
-You may wish to have more control over the output, or only generate for a single command, instead of the entire command tree. If this is the case you may prefer to `GenYaml` instead of `GenYamlTree`
-
-```go
-	out := new(bytes.Buffer)
-	doc.GenYaml(cmd, out)
-```
-
-This will write the yaml doc for ONLY "cmd" into the out, buffer.
-
-## Customize the output
-
-Both `GenYaml` and `GenYamlTree` have alternate versions with callbacks to get some control of the output:
-
-```go
-func GenYamlTreeCustom(cmd *Command, dir string, filePrepender, linkHandler func(string) string) error {
-	//...
-}
-```
-
-```go
-func GenYamlCustom(cmd *Command, out *bytes.Buffer, linkHandler func(string) string) error {
-	//...
-}
-```
-
-The `filePrepender` will prepend the return value given the full filepath to the rendered Yaml file. A common use case is to add front matter to use the generated documentation with [Hugo](http://gohugo.io/):
-
-```go
-const fmTemplate = `---
-date: %s
-title: "%s"
-slug: %s
-url: %s
----
-`
-
-filePrepender := func(filename string) string {
-	now := time.Now().Format(time.RFC3339)
-	name := filepath.Base(filename)
-	base := strings.TrimSuffix(name, path.Ext(name))
-	url := "/commands/" + strings.ToLower(base) + "/"
-	return fmt.Sprintf(fmTemplate, now, strings.Replace(base, "_", " ", -1), base, url)
-}
-```
-
-The `linkHandler` can be used to customize the rendered internal links to the commands, given a filename:
-
-```go
-linkHandler := func(name string) string {
-	base := strings.TrimSuffix(name, path.Ext(name))
-	return "/commands/" + strings.ToLower(base) + "/"
-}
-```

vendor/github.com/spf13/cobra/doc/yaml_docs_test.go

@@ -1,125 +0,0 @@
-package doc
-
-import (
-	"bytes"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-
-	"github.com/spf13/cobra"
-)
-
-func TestGenYamlDoc(t *testing.T) {
-	c := initializeWithRootCmd()
-	// Need two commands to run the command alphabetical sort
-	cmdEcho.AddCommand(cmdTimes, cmdEchoSub, cmdDeprecated)
-	c.AddCommand(cmdPrint, cmdEcho)
-	cmdRootWithRun.PersistentFlags().StringVarP(&flags2a, "rootflag", "r", "two", strtwoParentHelp)
-
-	out := new(bytes.Buffer)
-
-	// We generate on s subcommand so we have both subcommands and parents
-	if err := GenYaml(cmdEcho, out); err != nil {
-		t.Fatal(err)
-	}
-	found := out.String()
-
-	// Our description
-	expected := cmdEcho.Long
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	// Better have our example
-	expected = cmdEcho.Example
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	// A local flag
-	expected = "boolone"
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	// persistent flag on parent
-	expected = "rootflag"
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	// We better output info about our parent
-	expected = cmdRootWithRun.Short
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	// And about subcommands
-	expected = cmdEchoSub.Short
-	if !strings.Contains(found, expected) {
-		t.Errorf("Unexpected response.\nExpecting to contain: \n %q\nGot:\n %q\n", expected, found)
-	}
-
-	unexpected := cmdDeprecated.Short
-	if strings.Contains(found, unexpected) {
-		t.Errorf("Unexpected response.\nFound: %v\nBut should not have!!\n", unexpected)
-	}
-}
-
-func TestGenYamlNoTag(t *testing.T) {
-	c := initializeWithRootCmd()
-	// Need two commands to run the command alphabetical sort
-	cmdEcho.AddCommand(cmdTimes, cmdEchoSub, cmdDeprecated)
-	c.AddCommand(cmdPrint, cmdEcho)
-	c.DisableAutoGenTag = true
-	cmdRootWithRun.PersistentFlags().StringVarP(&flags2a, "rootflag", "r", "two", strtwoParentHelp)
-	out := new(bytes.Buffer)
-
-	if err := GenYaml(c, out); err != nil {
-		t.Fatal(err)
-	}
-	found := out.String()
-
-	unexpected := "Auto generated"
-	checkStringOmits(t, found, unexpected)
-
-}
-
-func TestGenYamlTree(t *testing.T) {
-	cmd := &cobra.Command{
-		Use: "do [OPTIONS] arg1 arg2",
-	}
-
-	tmpdir, err := ioutil.TempDir("", "test-gen-yaml-tree")
-	if err != nil {
-		t.Fatalf("Failed to create tmpdir: %s", err.Error())
-	}
-	defer os.RemoveAll(tmpdir)
-
-	if err := GenYamlTree(cmd, tmpdir); err != nil {
-		t.Fatalf("GenYamlTree failed: %s", err.Error())
-	}
-
-	if _, err := os.Stat(filepath.Join(tmpdir, "do.yaml")); err != nil {
-		t.Fatalf("Expected file 'do.yaml' to exist")
-	}
-}
-
-func BenchmarkGenYamlToFile(b *testing.B) {
-	c := initializeWithRootCmd()
-	file, err := ioutil.TempFile("", "")
-	if err != nil {
-		b.Fatal(err)
-	}
-	defer os.Remove(file.Name())
-	defer file.Close()
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		if err := GenYaml(c, file); err != nil {
-			b.Fatal(err)
-		}
-	}
-}

vendor/github.com/spf13/cobra/zsh_completions.go

@@ -0,0 +1,126 @@
+package cobra
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+)
+
+// GenZshCompletionFile generates zsh completion file.
+func (c *Command) GenZshCompletionFile(filename string) error {
+	outFile, err := os.Create(filename)
+	if err != nil {
+		return err
+	}
+	defer outFile.Close()
+
+	return c.GenZshCompletion(outFile)
+}
+
+// GenZshCompletion generates a zsh completion file and writes to the passed writer.
+func (c *Command) GenZshCompletion(w io.Writer) error {
+	buf := new(bytes.Buffer)
+
+	writeHeader(buf, c)
+	maxDepth := maxDepth(c)
+	writeLevelMapping(buf, maxDepth)
+	writeLevelCases(buf, maxDepth, c)
+
+	_, err := buf.WriteTo(w)
+	return err
+}
+
+func writeHeader(w io.Writer, cmd *Command) {
+	fmt.Fprintf(w, "#compdef %s\n\n", cmd.Name())
+}
+
+func maxDepth(c *Command) int {
+	if len(c.Commands()) == 0 {
+		return 0
+	}
+	maxDepthSub := 0
+	for _, s := range c.Commands() {
+		subDepth := maxDepth(s)
+		if subDepth > maxDepthSub {
+			maxDepthSub = subDepth
+		}
+	}
+	return 1 + maxDepthSub
+}
+
+func writeLevelMapping(w io.Writer, numLevels int) {
+	fmt.Fprintln(w, `_arguments \`)
+	for i := 1; i <= numLevels; i++ {
+		fmt.Fprintf(w, `  '%d: :->level%d' \`, i, i)
+		fmt.Fprintln(w)
+	}
+	fmt.Fprintf(w, `  '%d: :%s'`, numLevels+1, "_files")
+	fmt.Fprintln(w)
+}
+
+func writeLevelCases(w io.Writer, maxDepth int, root *Command) {
+	fmt.Fprintln(w, "case $state in")
+	defer fmt.Fprintln(w, "esac")
+
+	for i := 1; i <= maxDepth; i++ {
+		fmt.Fprintf(w, "  level%d)\n", i)
+		writeLevel(w, root, i)
+		fmt.Fprintln(w, "  ;;")
+	}
+	fmt.Fprintln(w, "  *)")
+	fmt.Fprintln(w, "    _arguments '*: :_files'")
+	fmt.Fprintln(w, "  ;;")
+}
+
+func writeLevel(w io.Writer, root *Command, i int) {
+	fmt.Fprintf(w, "    case $words[%d] in\n", i)
+	defer fmt.Fprintln(w, "    esac")
+
+	commands := filterByLevel(root, i)
+	byParent := groupByParent(commands)
+
+	for p, c := range byParent {
+		names := names(c)
+		fmt.Fprintf(w, "      %s)\n", p)
+		fmt.Fprintf(w, "        _arguments '%d: :(%s)'\n", i, strings.Join(names, " "))
+		fmt.Fprintln(w, "      ;;")
+	}
+	fmt.Fprintln(w, "      *)")
+	fmt.Fprintln(w, "        _arguments '*: :_files'")
+	fmt.Fprintln(w, "      ;;")
+
+}
+
+func filterByLevel(c *Command, l int) []*Command {
+	cs := make([]*Command, 0)
+	if l == 0 {
+		cs = append(cs, c)
+		return cs
+	}
+	for _, s := range c.Commands() {
+		cs = append(cs, filterByLevel(s, l-1)...)
+	}
+	return cs
+}
+
+func groupByParent(commands []*Command) map[string][]*Command {
+	m := make(map[string][]*Command)
+	for _, c := range commands {
+		parent := c.Parent()
+		if parent == nil {
+			continue
+		}
+		m[parent.Name()] = append(m[parent.Name()], c)
+	}
+	return m
+}
+
+func names(commands []*Command) []string {
+	ns := make([]string, len(commands))
+	for i, c := range commands {
+		ns[i] = c.Name()
+	}
+	return ns
+}

vendor/github.com/spf13/cobra/zsh_completions_test.go

@@ -0,0 +1,88 @@
+package cobra
+
+import (
+	"bytes"
+	"strings"
+	"testing"
+)
+
+func TestZshCompletion(t *testing.T) {
+	tcs := []struct {
+		name                string
+		root                *Command
+		expectedExpressions []string
+	}{
+		{
+			name:                "trivial",
+			root:                &Command{Use: "trivialapp"},
+			expectedExpressions: []string{"#compdef trivial"},
+		},
+		{
+			name: "linear",
+			root: func() *Command {
+				r := &Command{Use: "linear"}
+
+				sub1 := &Command{Use: "sub1"}
+				r.AddCommand(sub1)
+
+				sub2 := &Command{Use: "sub2"}
+				sub1.AddCommand(sub2)
+
+				sub3 := &Command{Use: "sub3"}
+				sub2.AddCommand(sub3)
+				return r
+			}(),
+			expectedExpressions: []string{"sub1", "sub2", "sub3"},
+		},
+		{
+			name: "flat",
+			root: func() *Command {
+				r := &Command{Use: "flat"}
+				r.AddCommand(&Command{Use: "c1"})
+				r.AddCommand(&Command{Use: "c2"})
+				return r
+			}(),
+			expectedExpressions: []string{"(c1 c2)"},
+		},
+		{
+			name: "tree",
+			root: func() *Command {
+				r := &Command{Use: "tree"}
+
+				sub1 := &Command{Use: "sub1"}
+				r.AddCommand(sub1)
+
+				sub11 := &Command{Use: "sub11"}
+				sub12 := &Command{Use: "sub12"}
+
+				sub1.AddCommand(sub11)
+				sub1.AddCommand(sub12)
+
+				sub2 := &Command{Use: "sub2"}
+				r.AddCommand(sub2)
+
+				sub21 := &Command{Use: "sub21"}
+				sub22 := &Command{Use: "sub22"}
+
+				sub2.AddCommand(sub21)
+				sub2.AddCommand(sub22)
+
+				return r
+			}(),
+			expectedExpressions: []string{"(sub11 sub12)", "(sub21 sub22)"},
+		},
+	}
+
+	for _, tc := range tcs {
+		t.Run(tc.name, func(t *testing.T) {
+			buf := new(bytes.Buffer)
+			tc.root.GenZshCompletion(buf)
+			completion := buf.String()
+			for _, expectedExpression := range tc.expectedExpressions {
+				if !strings.Contains(completion, expectedExpression) {
+					t.Errorf("expected completion to contain '%v' somewhere; got '%v'", expectedExpression, completion)
+				}
+			}
+		})
+	}
+}

vendor/github.com/spf13/pflag/verify/all.sh

@@ -1,69 +0,0 @@
-#!/bin/bash
-
-set -o errexit
-set -o nounset
-set -o pipefail
-
-ROOT=$(dirname "${BASH_SOURCE}")/..
-
-# Some useful colors.
-if [[ -z "${color_start-}" ]]; then
-  declare -r color_start="\033["
-  declare -r color_red="${color_start}0;31m"
-  declare -r color_yellow="${color_start}0;33m"
-  declare -r color_green="${color_start}0;32m"
-  declare -r color_norm="${color_start}0m"
-fi
-
-SILENT=true
-
-function is-excluded {
-  for e in $EXCLUDE; do
-    if [[ $1 -ef ${BASH_SOURCE} ]]; then
-      return
-    fi
-    if [[ $1 -ef "$ROOT/hack/$e" ]]; then
-      return
-    fi
-  done
-  return 1
-}
-
-while getopts ":v" opt; do
-  case $opt in
-    v)
-      SILENT=false
-      ;;
-    \?)
-      echo "Invalid flag: -$OPTARG" >&2
-      exit 1
-      ;;
-  esac
-done
-
-if $SILENT ; then
-  echo "Running in the silent mode, run with -v if you want to see script logs."
-fi
-
-EXCLUDE="all.sh"
-
-ret=0
-for t in `ls $ROOT/verify/*.sh`
-do
-  if is-excluded $t ; then
-    echo "Skipping $t"
-    continue
-  fi
-  if $SILENT ; then
-    echo -e "Verifying $t"
-    if bash "$t" &> /dev/null; then
-      echo -e "${color_green}SUCCESS${color_norm}"
-    else
-      echo -e "${color_red}FAILED${color_norm}"
-      ret=1
-    fi
-  else
-    bash "$t" || ret=1
-  fi
-done
-exit $ret

vendor/github.com/spf13/pflag/verify/gofmt.sh

@@ -1,19 +0,0 @@
-#!/bin/bash
-
-set -o errexit
-set -o nounset
-set -o pipefail
-
-ROOT=$(dirname "${BASH_SOURCE}")/..
-
-pushd "${ROOT}" > /dev/null
-
-GOFMT=${GOFMT:-"gofmt"}
-bad_files=$(find . -name '*.go' | xargs $GOFMT -s -l)
-if [[ -n "${bad_files}" ]]; then
-  echo "!!! '$GOFMT' needs to be run on the following files: "
-  echo "${bad_files}"
-  exit 1
-fi
-
-# ex: ts=2 sw=2 et filetype=sh

vendor/github.com/spf13/pflag/verify/golint.sh

@@ -1,15 +0,0 @@
-#!/bin/bash
-
-ROOT=$(dirname "${BASH_SOURCE}")/..
-GOLINT=${GOLINT:-"golint"}
-
-pushd "${ROOT}" > /dev/null
-  bad_files=$($GOLINT -min_confidence=0.9 ./...)
-  if [[ -n "${bad_files}" ]]; then
-    echo "!!! '$GOLINT' problems: "
-    echo "${bad_files}"
-    exit 1
-  fi
-popd > /dev/null
-
-# ex: ts=2 sw=2 et filetype=sh

vendor/golang.org/x/net/.gitattributes

@@ -1,10 +0,0 @@
-# Treat all files in this repo as binary, with no git magic updating
-# line endings. Windows users contributing to Go will need to use a
-# modern version of git and editors capable of LF line endings.
-#
-# We'll prevent accidental CRLF line endings from entering the repo
-# via the git-review gofmt checks.
-#
-# See golang.org/issue/9281
-
-* -text

vendor/golang.org/x/net/.gitignore

@@ -1,2 +0,0 @@
-# Add no patterns to .hgignore except for files generated by the build.
-last-change

vendor/golang.org/x/net/AUTHORS

@@ -1,3 +0,0 @@
-# This source code refers to The Go Authors for copyright purposes.
-# The master list of authors is in the main Go distribution,
-# visible at http://tip.golang.org/AUTHORS.

vendor/golang.org/x/net/CONTRIBUTING.md

@@ -1,31 +0,0 @@
-# Contributing to Go
-
-Go is an open source project.
-
-It is the work of hundreds of contributors. We appreciate your help!
-
-
-## Filing issues
-
-When [filing an issue](https://golang.org/issue/new), make sure to answer these five questions:
-
-1. What version of Go are you using (`go version`)?
-2. What operating system and processor architecture are you using?
-3. What did you do?
-4. What did you expect to see?
-5. What did you see instead?
-
-General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker.
-The gophers there will answer or ask you to file an issue if you've tripped over a bug.
-
-## Contributing code
-
-Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html)
-before sending patches.
-
-**We do not accept GitHub pull requests**
-(we use [Gerrit](https://code.google.com/p/gerrit/) instead for code review).
-
-Unless otherwise noted, the Go source files are distributed under
-the BSD-style license found in the LICENSE file.
-

vendor/golang.org/x/net/CONTRIBUTORS

@@ -1,3 +0,0 @@
-# This source code was written by the Go contributors.
-# The master list of contributors is in the main Go distribution,
-# visible at http://tip.golang.org/CONTRIBUTORS.

vendor/golang.org/x/net/LICENSE

@@ -1,27 +0,0 @@
-Copyright (c) 2009 The Go Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-   * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-   * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/golang.org/x/net/PATENTS

@@ -1,22 +0,0 @@
-Additional IP Rights Grant (Patents)
-
-"This implementation" means the copyrightable works distributed by
-Google as part of the Go project.
-
-Google hereby grants to You a perpetual, worldwide, non-exclusive,
-no-charge, royalty-free, irrevocable (except as stated in this section)
-patent license to make, have made, use, offer to sell, sell, import,
-transfer and otherwise run, modify and propagate the contents of this
-implementation of Go, where such license applies only to those patent
-claims, both currently owned or controlled by Google and acquired in
-the future, licensable by Google that are necessarily infringed by this
-implementation of Go.  This grant does not include claims that would be
-infringed only as a consequence of further modification of this
-implementation.  If you or your agent or exclusive licensee institute or
-order or agree to the institution of patent litigation against any
-entity (including a cross-claim or counterclaim in a lawsuit) alleging
-that this implementation of Go or any code incorporated within this
-implementation of Go constitutes direct or contributory patent
-infringement, or inducement of patent infringement, then any patent
-rights granted to you under this License for this implementation of Go
-shall terminate as of the date such litigation is filed.

vendor/golang.org/x/net/README

@@ -1,3 +0,0 @@
-This repository holds supplementary Go networking libraries.
-
-To submit changes to this repository, see http://golang.org/doc/contribute.html.

vendor/golang.org/x/net/bpf/asm.go

@@ -1,41 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf
-
-import "fmt"
-
-// Assemble converts insts into raw instructions suitable for loading
-// into a BPF virtual machine.
-//
-// Currently, no optimization is attempted, the assembled program flow
-// is exactly as provided.
-func Assemble(insts []Instruction) ([]RawInstruction, error) {
-	ret := make([]RawInstruction, len(insts))
-	var err error
-	for i, inst := range insts {
-		ret[i], err = inst.Assemble()
-		if err != nil {
-			return nil, fmt.Errorf("assembling instruction %d: %s", i+1, err)
-		}
-	}
-	return ret, nil
-}
-
-// Disassemble attempts to parse raw back into
-// Instructions. Unrecognized RawInstructions are assumed to be an
-// extension not implemented by this package, and are passed through
-// unchanged to the output. The allDecoded value reports whether insts
-// contains no RawInstructions.
-func Disassemble(raw []RawInstruction) (insts []Instruction, allDecoded bool) {
-	insts = make([]Instruction, len(raw))
-	allDecoded = true
-	for i, r := range raw {
-		insts[i] = r.Disassemble()
-		if _, ok := insts[i].(RawInstruction); ok {
-			allDecoded = false
-		}
-	}
-	return insts, allDecoded
-}

vendor/golang.org/x/net/bpf/constants.go

@@ -1,215 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf
-
-// A Register is a register of the BPF virtual machine.
-type Register uint16
-
-const (
-	// RegA is the accumulator register. RegA is always the
-	// destination register of ALU operations.
-	RegA Register = iota
-	// RegX is the indirection register, used by LoadIndirect
-	// operations.
-	RegX
-)
-
-// An ALUOp is an arithmetic or logic operation.
-type ALUOp uint16
-
-// ALU binary operation types.
-const (
-	ALUOpAdd ALUOp = iota << 4
-	ALUOpSub
-	ALUOpMul
-	ALUOpDiv
-	ALUOpOr
-	ALUOpAnd
-	ALUOpShiftLeft
-	ALUOpShiftRight
-	aluOpNeg // Not exported because it's the only unary ALU operation, and gets its own instruction type.
-	ALUOpMod
-	ALUOpXor
-)
-
-// A JumpTest is a comparison operator used in conditional jumps.
-type JumpTest uint16
-
-// Supported operators for conditional jumps.
-const (
-	// K == A
-	JumpEqual JumpTest = iota
-	// K != A
-	JumpNotEqual
-	// K > A
-	JumpGreaterThan
-	// K < A
-	JumpLessThan
-	// K >= A
-	JumpGreaterOrEqual
-	// K <= A
-	JumpLessOrEqual
-	// K & A != 0
-	JumpBitsSet
-	// K & A == 0
-	JumpBitsNotSet
-)
-
-// An Extension is a function call provided by the kernel that
-// performs advanced operations that are expensive or impossible
-// within the BPF virtual machine.
-//
-// Extensions are only implemented by the Linux kernel.
-//
-// TODO: should we prune this list? Some of these extensions seem
-// either broken or near-impossible to use correctly, whereas other
-// (len, random, ifindex) are quite useful.
-type Extension int
-
-// Extension functions available in the Linux kernel.
-const (
-	// ExtLen returns the length of the packet.
-	ExtLen Extension = 1
-	// ExtProto returns the packet's L3 protocol type.
-	ExtProto = 0
-	// ExtType returns the packet's type (skb->pkt_type in the kernel)
-	//
-	// TODO: better documentation. How nice an API do we want to
-	// provide for these esoteric extensions?
-	ExtType = 4
-	// ExtPayloadOffset returns the offset of the packet payload, or
-	// the first protocol header that the kernel does not know how to
-	// parse.
-	ExtPayloadOffset = 52
-	// ExtInterfaceIndex returns the index of the interface on which
-	// the packet was received.
-	ExtInterfaceIndex = 8
-	// ExtNetlinkAttr returns the netlink attribute of type X at
-	// offset A.
-	ExtNetlinkAttr = 12
-	// ExtNetlinkAttrNested returns the nested netlink attribute of
-	// type X at offset A.
-	ExtNetlinkAttrNested = 16
-	// ExtMark returns the packet's mark value.
-	ExtMark = 20
-	// ExtQueue returns the packet's assigned hardware queue.
-	ExtQueue = 24
-	// ExtLinkLayerType returns the packet's hardware address type
-	// (e.g. Ethernet, Infiniband).
-	ExtLinkLayerType = 28
-	// ExtRXHash returns the packets receive hash.
-	//
-	// TODO: figure out what this rxhash actually is.
-	ExtRXHash = 32
-	// ExtCPUID returns the ID of the CPU processing the current
-	// packet.
-	ExtCPUID = 36
-	// ExtVLANTag returns the packet's VLAN tag.
-	ExtVLANTag = 44
-	// ExtVLANTagPresent returns non-zero if the packet has a VLAN
-	// tag.
-	//
-	// TODO: I think this might be a lie: it reads bit 0x1000 of the
-	// VLAN header, which changed meaning in recent revisions of the
-	// spec - this extension may now return meaningless information.
-	ExtVLANTagPresent = 48
-	// ExtVLANProto returns 0x8100 if the frame has a VLAN header,
-	// 0x88a8 if the frame has a "Q-in-Q" double VLAN header, or some
-	// other value if no VLAN information is present.
-	ExtVLANProto = 60
-	// ExtRand returns a uniformly random uint32.
-	ExtRand = 56
-)
-
-// The following gives names to various bit patterns used in opcode construction.
-
-const (
-	opMaskCls uint16 = 0x7
-	// opClsLoad masks
-	opMaskLoadDest  = 0x01
-	opMaskLoadWidth = 0x18
-	opMaskLoadMode  = 0xe0
-	// opClsALU
-	opMaskOperandSrc = 0x08
-	opMaskOperator   = 0xf0
-	// opClsJump
-	opMaskJumpConst = 0x0f
-	opMaskJumpCond  = 0xf0
-)
-
-const (
-	// +---------------+-----------------+---+---+---+
-	// | AddrMode (3b) | LoadWidth (2b)  | 0 | 0 | 0 |
-	// +---------------+-----------------+---+---+---+
-	opClsLoadA uint16 = iota
-	// +---------------+-----------------+---+---+---+
-	// | AddrMode (3b) | LoadWidth (2b)  | 0 | 0 | 1 |
-	// +---------------+-----------------+---+---+---+
-	opClsLoadX
-	// +---+---+---+---+---+---+---+---+
-	// | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
-	// +---+---+---+---+---+---+---+---+
-	opClsStoreA
-	// +---+---+---+---+---+---+---+---+
-	// | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
-	// +---+---+---+---+---+---+---+---+
-	opClsStoreX
-	// +---------------+-----------------+---+---+---+
-	// | Operator (4b) | OperandSrc (1b) | 1 | 0 | 0 |
-	// +---------------+-----------------+---+---+---+
-	opClsALU
-	// +-----------------------------+---+---+---+---+
-	// |      TestOperator (4b)      | 0 | 1 | 0 | 1 |
-	// +-----------------------------+---+---+---+---+
-	opClsJump
-	// +---+-------------------------+---+---+---+---+
-	// | 0 | 0 | 0 |   RetSrc (1b)   | 0 | 1 | 1 | 0 |
-	// +---+-------------------------+---+---+---+---+
-	opClsReturn
-	// +---+-------------------------+---+---+---+---+
-	// | 0 | 0 | 0 |  TXAorTAX (1b)  | 0 | 1 | 1 | 1 |
-	// +---+-------------------------+---+---+---+---+
-	opClsMisc
-)
-
-const (
-	opAddrModeImmediate uint16 = iota << 5
-	opAddrModeAbsolute
-	opAddrModeIndirect
-	opAddrModeScratch
-	opAddrModePacketLen // actually an extension, not an addressing mode.
-	opAddrModeMemShift
-)
-
-const (
-	opLoadWidth4 uint16 = iota << 3
-	opLoadWidth2
-	opLoadWidth1
-)
-
-// Operator defined by ALUOp*
-
-const (
-	opALUSrcConstant uint16 = iota << 3
-	opALUSrcX
-)
-
-const (
-	opJumpAlways = iota << 4
-	opJumpEqual
-	opJumpGT
-	opJumpGE
-	opJumpSet
-)
-
-const (
-	opRetSrcConstant uint16 = iota << 4
-	opRetSrcA
-)
-
-const (
-	opMiscTAX = 0x00
-	opMiscTXA = 0x80
-)

vendor/golang.org/x/net/bpf/doc.go

@@ -1,82 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-
-Package bpf implements marshaling and unmarshaling of programs for the
-Berkeley Packet Filter virtual machine, and provides a Go implementation
-of the virtual machine.
-
-BPF's main use is to specify a packet filter for network taps, so that
-the kernel doesn't have to expensively copy every packet it sees to
-userspace. However, it's been repurposed to other areas where running
-user code in-kernel is needed. For example, Linux's seccomp uses BPF
-to apply security policies to system calls. For simplicity, this
-documentation refers only to packets, but other uses of BPF have their
-own data payloads.
-
-BPF programs run in a restricted virtual machine. It has almost no
-access to kernel functions, and while conditional branches are
-allowed, they can only jump forwards, to guarantee that there are no
-infinite loops.
-
-The virtual machine
-
-The BPF VM is an accumulator machine. Its main register, called
-register A, is an implicit source and destination in all arithmetic
-and logic operations. The machine also has 16 scratch registers for
-temporary storage, and an indirection register (register X) for
-indirect memory access. All registers are 32 bits wide.
-
-Each run of a BPF program is given one packet, which is placed in the
-VM's read-only "main memory". LoadAbsolute and LoadIndirect
-instructions can fetch up to 32 bits at a time into register A for
-examination.
-
-The goal of a BPF program is to produce and return a verdict (uint32),
-which tells the kernel what to do with the packet. In the context of
-packet filtering, the returned value is the number of bytes of the
-packet to forward to userspace, or 0 to ignore the packet. Other
-contexts like seccomp define their own return values.
-
-In order to simplify programs, attempts to read past the end of the
-packet terminate the program execution with a verdict of 0 (ignore
-packet). This means that the vast majority of BPF programs don't need
-to do any explicit bounds checking.
-
-In addition to the bytes of the packet, some BPF programs have access
-to extensions, which are essentially calls to kernel utility
-functions. Currently, the only extensions supported by this package
-are the Linux packet filter extensions.
-
-Examples
-
-This packet filter selects all ARP packets.
-
-	bpf.Assemble([]bpf.Instruction{
-		// Load "EtherType" field from the ethernet header.
-		bpf.LoadAbsolute{Off: 12, Size: 2},
-		// Skip over the next instruction if EtherType is not ARP.
-		bpf.JumpIf{Cond: bpf.JumpNotEqual, Val: 0x0806, SkipTrue: 1},
-		// Verdict is "send up to 4k of the packet to userspace."
-		bpf.RetConstant{Val: 4096},
-		// Verdict is "ignore packet."
-		bpf.RetConstant{Val: 0},
-	})
-
-This packet filter captures a random 1% sample of traffic.
-
-	bpf.Assemble([]bpf.Instruction{
-		// Get a 32-bit random number from the Linux kernel.
-		bpf.LoadExtension{Num: bpf.ExtRand},
-		// 1% dice roll?
-		bpf.JumpIf{Cond: bpf.JumpLessThan, Val: 2^32/100, SkipFalse: 1},
-		// Capture.
-		bpf.RetConstant{Val: 4096},
-		// Ignore.
-		bpf.RetConstant{Val: 0},
-	})
-
-*/
-package bpf // import "golang.org/x/net/bpf"

vendor/golang.org/x/net/bpf/instructions.go

@@ -1,434 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf
-
-import "fmt"
-
-// An Instruction is one instruction executed by the BPF virtual
-// machine.
-type Instruction interface {
-	// Assemble assembles the Instruction into a RawInstruction.
-	Assemble() (RawInstruction, error)
-}
-
-// A RawInstruction is a raw BPF virtual machine instruction.
-type RawInstruction struct {
-	// Operation to execute.
-	Op uint16
-	// For conditional jump instructions, the number of instructions
-	// to skip if the condition is true/false.
-	Jt uint8
-	Jf uint8
-	// Constant parameter. The meaning depends on the Op.
-	K uint32
-}
-
-// Assemble implements the Instruction Assemble method.
-func (ri RawInstruction) Assemble() (RawInstruction, error) { return ri, nil }
-
-// Disassemble parses ri into an Instruction and returns it. If ri is
-// not recognized by this package, ri itself is returned.
-func (ri RawInstruction) Disassemble() Instruction {
-	switch ri.Op & opMaskCls {
-	case opClsLoadA, opClsLoadX:
-		reg := Register(ri.Op & opMaskLoadDest)
-		sz := 0
-		switch ri.Op & opMaskLoadWidth {
-		case opLoadWidth4:
-			sz = 4
-		case opLoadWidth2:
-			sz = 2
-		case opLoadWidth1:
-			sz = 1
-		default:
-			return ri
-		}
-		switch ri.Op & opMaskLoadMode {
-		case opAddrModeImmediate:
-			if sz != 4 {
-				return ri
-			}
-			return LoadConstant{Dst: reg, Val: ri.K}
-		case opAddrModeScratch:
-			if sz != 4 || ri.K > 15 {
-				return ri
-			}
-			return LoadScratch{Dst: reg, N: int(ri.K)}
-		case opAddrModeAbsolute:
-			return LoadAbsolute{Size: sz, Off: ri.K}
-		case opAddrModeIndirect:
-			return LoadIndirect{Size: sz, Off: ri.K}
-		case opAddrModePacketLen:
-			if sz != 4 {
-				return ri
-			}
-			return LoadExtension{Num: ExtLen}
-		case opAddrModeMemShift:
-			return LoadMemShift{Off: ri.K}
-		default:
-			return ri
-		}
-
-	case opClsStoreA:
-		if ri.Op != opClsStoreA || ri.K > 15 {
-			return ri
-		}
-		return StoreScratch{Src: RegA, N: int(ri.K)}
-
-	case opClsStoreX:
-		if ri.Op != opClsStoreX || ri.K > 15 {
-			return ri
-		}
-		return StoreScratch{Src: RegX, N: int(ri.K)}
-
-	case opClsALU:
-		switch op := ALUOp(ri.Op & opMaskOperator); op {
-		case ALUOpAdd, ALUOpSub, ALUOpMul, ALUOpDiv, ALUOpOr, ALUOpAnd, ALUOpShiftLeft, ALUOpShiftRight, ALUOpMod, ALUOpXor:
-			if ri.Op&opMaskOperandSrc != 0 {
-				return ALUOpX{Op: op}
-			}
-			return ALUOpConstant{Op: op, Val: ri.K}
-		case aluOpNeg:
-			return NegateA{}
-		default:
-			return ri
-		}
-
-	case opClsJump:
-		if ri.Op&opMaskJumpConst != opClsJump {
-			return ri
-		}
-		switch ri.Op & opMaskJumpCond {
-		case opJumpAlways:
-			return Jump{Skip: ri.K}
-		case opJumpEqual:
-			return JumpIf{
-				Cond:      JumpEqual,
-				Val:       ri.K,
-				SkipTrue:  ri.Jt,
-				SkipFalse: ri.Jf,
-			}
-		case opJumpGT:
-			return JumpIf{
-				Cond:      JumpGreaterThan,
-				Val:       ri.K,
-				SkipTrue:  ri.Jt,
-				SkipFalse: ri.Jf,
-			}
-		case opJumpGE:
-			return JumpIf{
-				Cond:      JumpGreaterOrEqual,
-				Val:       ri.K,
-				SkipTrue:  ri.Jt,
-				SkipFalse: ri.Jf,
-			}
-		case opJumpSet:
-			return JumpIf{
-				Cond:      JumpBitsSet,
-				Val:       ri.K,
-				SkipTrue:  ri.Jt,
-				SkipFalse: ri.Jf,
-			}
-		default:
-			return ri
-		}
-
-	case opClsReturn:
-		switch ri.Op {
-		case opClsReturn | opRetSrcA:
-			return RetA{}
-		case opClsReturn | opRetSrcConstant:
-			return RetConstant{Val: ri.K}
-		default:
-			return ri
-		}
-
-	case opClsMisc:
-		switch ri.Op {
-		case opClsMisc | opMiscTAX:
-			return TAX{}
-		case opClsMisc | opMiscTXA:
-			return TXA{}
-		default:
-			return ri
-		}
-
-	default:
-		panic("unreachable") // switch is exhaustive on the bit pattern
-	}
-}
-
-// LoadConstant loads Val into register Dst.
-type LoadConstant struct {
-	Dst Register
-	Val uint32
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a LoadConstant) Assemble() (RawInstruction, error) {
-	return assembleLoad(a.Dst, 4, opAddrModeImmediate, a.Val)
-}
-
-// LoadScratch loads scratch[N] into register Dst.
-type LoadScratch struct {
-	Dst Register
-	N   int // 0-15
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a LoadScratch) Assemble() (RawInstruction, error) {
-	if a.N < 0 || a.N > 15 {
-		return RawInstruction{}, fmt.Errorf("invalid scratch slot %d", a.N)
-	}
-	return assembleLoad(a.Dst, 4, opAddrModeScratch, uint32(a.N))
-}
-
-// LoadAbsolute loads packet[Off:Off+Size] as an integer value into
-// register A.
-type LoadAbsolute struct {
-	Off  uint32
-	Size int // 1, 2 or 4
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a LoadAbsolute) Assemble() (RawInstruction, error) {
-	return assembleLoad(RegA, a.Size, opAddrModeAbsolute, a.Off)
-}
-
-// LoadIndirect loads packet[X+Off:X+Off+Size] as an integer value
-// into register A.
-type LoadIndirect struct {
-	Off  uint32
-	Size int // 1, 2 or 4
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a LoadIndirect) Assemble() (RawInstruction, error) {
-	return assembleLoad(RegA, a.Size, opAddrModeIndirect, a.Off)
-}
-
-// LoadMemShift multiplies the first 4 bits of the byte at packet[Off]
-// by 4 and stores the result in register X.
-//
-// This instruction is mainly useful to load into X the length of an
-// IPv4 packet header in a single instruction, rather than have to do
-// the arithmetic on the header's first byte by hand.
-type LoadMemShift struct {
-	Off uint32
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a LoadMemShift) Assemble() (RawInstruction, error) {
-	return assembleLoad(RegX, 1, opAddrModeMemShift, a.Off)
-}
-
-// LoadExtension invokes a linux-specific extension and stores the
-// result in register A.
-type LoadExtension struct {
-	Num Extension
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a LoadExtension) Assemble() (RawInstruction, error) {
-	if a.Num == ExtLen {
-		return assembleLoad(RegA, 4, opAddrModePacketLen, 0)
-	}
-	return assembleLoad(RegA, 4, opAddrModeAbsolute, uint32(-0x1000+a.Num))
-}
-
-// StoreScratch stores register Src into scratch[N].
-type StoreScratch struct {
-	Src Register
-	N   int // 0-15
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a StoreScratch) Assemble() (RawInstruction, error) {
-	if a.N < 0 || a.N > 15 {
-		return RawInstruction{}, fmt.Errorf("invalid scratch slot %d", a.N)
-	}
-	var op uint16
-	switch a.Src {
-	case RegA:
-		op = opClsStoreA
-	case RegX:
-		op = opClsStoreX
-	default:
-		return RawInstruction{}, fmt.Errorf("invalid source register %v", a.Src)
-	}
-
-	return RawInstruction{
-		Op: op,
-		K:  uint32(a.N),
-	}, nil
-}
-
-// ALUOpConstant executes A = A <Op> Val.
-type ALUOpConstant struct {
-	Op  ALUOp
-	Val uint32
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a ALUOpConstant) Assemble() (RawInstruction, error) {
-	return RawInstruction{
-		Op: opClsALU | opALUSrcConstant | uint16(a.Op),
-		K:  a.Val,
-	}, nil
-}
-
-// ALUOpX executes A = A <Op> X
-type ALUOpX struct {
-	Op ALUOp
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a ALUOpX) Assemble() (RawInstruction, error) {
-	return RawInstruction{
-		Op: opClsALU | opALUSrcX | uint16(a.Op),
-	}, nil
-}
-
-// NegateA executes A = -A.
-type NegateA struct{}
-
-// Assemble implements the Instruction Assemble method.
-func (a NegateA) Assemble() (RawInstruction, error) {
-	return RawInstruction{
-		Op: opClsALU | uint16(aluOpNeg),
-	}, nil
-}
-
-// Jump skips the following Skip instructions in the program.
-type Jump struct {
-	Skip uint32
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a Jump) Assemble() (RawInstruction, error) {
-	return RawInstruction{
-		Op: opClsJump | opJumpAlways,
-		K:  a.Skip,
-	}, nil
-}
-
-// JumpIf skips the following Skip instructions in the program if A
-// <Cond> Val is true.
-type JumpIf struct {
-	Cond      JumpTest
-	Val       uint32
-	SkipTrue  uint8
-	SkipFalse uint8
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a JumpIf) Assemble() (RawInstruction, error) {
-	var (
-		cond uint16
-		flip bool
-	)
-	switch a.Cond {
-	case JumpEqual:
-		cond = opJumpEqual
-	case JumpNotEqual:
-		cond, flip = opJumpEqual, true
-	case JumpGreaterThan:
-		cond = opJumpGT
-	case JumpLessThan:
-		cond, flip = opJumpGE, true
-	case JumpGreaterOrEqual:
-		cond = opJumpGE
-	case JumpLessOrEqual:
-		cond, flip = opJumpGT, true
-	case JumpBitsSet:
-		cond = opJumpSet
-	case JumpBitsNotSet:
-		cond, flip = opJumpSet, true
-	default:
-		return RawInstruction{}, fmt.Errorf("unknown JumpTest %v", a.Cond)
-	}
-	jt, jf := a.SkipTrue, a.SkipFalse
-	if flip {
-		jt, jf = jf, jt
-	}
-	return RawInstruction{
-		Op: opClsJump | cond,
-		Jt: jt,
-		Jf: jf,
-		K:  a.Val,
-	}, nil
-}
-
-// RetA exits the BPF program, returning the value of register A.
-type RetA struct{}
-
-// Assemble implements the Instruction Assemble method.
-func (a RetA) Assemble() (RawInstruction, error) {
-	return RawInstruction{
-		Op: opClsReturn | opRetSrcA,
-	}, nil
-}
-
-// RetConstant exits the BPF program, returning a constant value.
-type RetConstant struct {
-	Val uint32
-}
-
-// Assemble implements the Instruction Assemble method.
-func (a RetConstant) Assemble() (RawInstruction, error) {
-	return RawInstruction{
-		Op: opClsReturn | opRetSrcConstant,
-		K:  a.Val,
-	}, nil
-}
-
-// TXA copies the value of register X to register A.
-type TXA struct{}
-
-// Assemble implements the Instruction Assemble method.
-func (a TXA) Assemble() (RawInstruction, error) {
-	return RawInstruction{
-		Op: opClsMisc | opMiscTXA,
-	}, nil
-}
-
-// TAX copies the value of register A to register X.
-type TAX struct{}
-
-// Assemble implements the Instruction Assemble method.
-func (a TAX) Assemble() (RawInstruction, error) {
-	return RawInstruction{
-		Op: opClsMisc | opMiscTAX,
-	}, nil
-}
-
-func assembleLoad(dst Register, loadSize int, mode uint16, k uint32) (RawInstruction, error) {
-	var (
-		cls uint16
-		sz  uint16
-	)
-	switch dst {
-	case RegA:
-		cls = opClsLoadA
-	case RegX:
-		cls = opClsLoadX
-	default:
-		return RawInstruction{}, fmt.Errorf("invalid target register %v", dst)
-	}
-	switch loadSize {
-	case 1:
-		sz = opLoadWidth1
-	case 2:
-		sz = opLoadWidth2
-	case 4:
-		sz = opLoadWidth4
-	default:
-		return RawInstruction{}, fmt.Errorf("invalid load byte length %d", sz)
-	}
-	return RawInstruction{
-		Op: cls | sz | mode,
-		K:  k,
-	}, nil
-}

vendor/golang.org/x/net/bpf/instructions_test.go

@@ -1,184 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf
-
-import (
-	"io/ioutil"
-	"reflect"
-	"strconv"
-	"strings"
-	"testing"
-)
-
-// This is a direct translation of the program in
-// testdata/all_instructions.txt.
-var allInstructions = []Instruction{
-	LoadConstant{Dst: RegA, Val: 42},
-	LoadConstant{Dst: RegX, Val: 42},
-
-	LoadScratch{Dst: RegA, N: 3},
-	LoadScratch{Dst: RegX, N: 3},
-
-	LoadAbsolute{Off: 42, Size: 1},
-	LoadAbsolute{Off: 42, Size: 2},
-	LoadAbsolute{Off: 42, Size: 4},
-
-	LoadIndirect{Off: 42, Size: 1},
-	LoadIndirect{Off: 42, Size: 2},
-	LoadIndirect{Off: 42, Size: 4},
-
-	LoadMemShift{Off: 42},
-
-	LoadExtension{Num: ExtLen},
-	LoadExtension{Num: ExtProto},
-	LoadExtension{Num: ExtType},
-	LoadExtension{Num: ExtRand},
-
-	StoreScratch{Src: RegA, N: 3},
-	StoreScratch{Src: RegX, N: 3},
-
-	ALUOpConstant{Op: ALUOpAdd, Val: 42},
-	ALUOpConstant{Op: ALUOpSub, Val: 42},
-	ALUOpConstant{Op: ALUOpMul, Val: 42},
-	ALUOpConstant{Op: ALUOpDiv, Val: 42},
-	ALUOpConstant{Op: ALUOpOr, Val: 42},
-	ALUOpConstant{Op: ALUOpAnd, Val: 42},
-	ALUOpConstant{Op: ALUOpShiftLeft, Val: 42},
-	ALUOpConstant{Op: ALUOpShiftRight, Val: 42},
-	ALUOpConstant{Op: ALUOpMod, Val: 42},
-	ALUOpConstant{Op: ALUOpXor, Val: 42},
-
-	ALUOpX{Op: ALUOpAdd},
-	ALUOpX{Op: ALUOpSub},
-	ALUOpX{Op: ALUOpMul},
-	ALUOpX{Op: ALUOpDiv},
-	ALUOpX{Op: ALUOpOr},
-	ALUOpX{Op: ALUOpAnd},
-	ALUOpX{Op: ALUOpShiftLeft},
-	ALUOpX{Op: ALUOpShiftRight},
-	ALUOpX{Op: ALUOpMod},
-	ALUOpX{Op: ALUOpXor},
-
-	NegateA{},
-
-	Jump{Skip: 10},
-	JumpIf{Cond: JumpEqual, Val: 42, SkipTrue: 8, SkipFalse: 9},
-	JumpIf{Cond: JumpNotEqual, Val: 42, SkipTrue: 8},
-	JumpIf{Cond: JumpLessThan, Val: 42, SkipTrue: 7},
-	JumpIf{Cond: JumpLessOrEqual, Val: 42, SkipTrue: 6},
-	JumpIf{Cond: JumpGreaterThan, Val: 42, SkipTrue: 4, SkipFalse: 5},
-	JumpIf{Cond: JumpGreaterOrEqual, Val: 42, SkipTrue: 3, SkipFalse: 4},
-	JumpIf{Cond: JumpBitsSet, Val: 42, SkipTrue: 2, SkipFalse: 3},
-
-	TAX{},
-	TXA{},
-
-	RetA{},
-	RetConstant{Val: 42},
-}
-var allInstructionsExpected = "testdata/all_instructions.bpf"
-
-// Check that we produce the same output as the canonical bpf_asm
-// linux kernel tool.
-func TestInterop(t *testing.T) {
-	out, err := Assemble(allInstructions)
-	if err != nil {
-		t.Fatalf("assembly of allInstructions program failed: %s", err)
-	}
-	t.Logf("Assembled program is %d instructions long", len(out))
-
-	bs, err := ioutil.ReadFile(allInstructionsExpected)
-	if err != nil {
-		t.Fatalf("reading %s: %s", allInstructionsExpected, err)
-	}
-	// First statement is the number of statements, last statement is
-	// empty. We just ignore both and rely on slice length.
-	stmts := strings.Split(string(bs), ",")
-	if len(stmts)-2 != len(out) {
-		t.Fatalf("test program lengths don't match: %s has %d, Go implementation has %d", allInstructionsExpected, len(stmts)-2, len(allInstructions))
-	}
-
-	for i, stmt := range stmts[1 : len(stmts)-2] {
-		nums := strings.Split(stmt, " ")
-		if len(nums) != 4 {
-			t.Fatalf("malformed instruction %d in %s: %s", i+1, allInstructionsExpected, stmt)
-		}
-
-		actual := out[i]
-
-		op, err := strconv.ParseUint(nums[0], 10, 16)
-		if err != nil {
-			t.Fatalf("malformed opcode %s in instruction %d of %s", nums[0], i+1, allInstructionsExpected)
-		}
-		if actual.Op != uint16(op) {
-			t.Errorf("opcode mismatch on instruction %d (%#v): got 0x%02x, want 0x%02x", i+1, allInstructions[i], actual.Op, op)
-		}
-
-		jt, err := strconv.ParseUint(nums[1], 10, 8)
-		if err != nil {
-			t.Fatalf("malformed jt offset %s in instruction %d of %s", nums[1], i+1, allInstructionsExpected)
-		}
-		if actual.Jt != uint8(jt) {
-			t.Errorf("jt mismatch on instruction %d (%#v): got %d, want %d", i+1, allInstructions[i], actual.Jt, jt)
-		}
-
-		jf, err := strconv.ParseUint(nums[2], 10, 8)
-		if err != nil {
-			t.Fatalf("malformed jf offset %s in instruction %d of %s", nums[2], i+1, allInstructionsExpected)
-		}
-		if actual.Jf != uint8(jf) {
-			t.Errorf("jf mismatch on instruction %d (%#v): got %d, want %d", i+1, allInstructions[i], actual.Jf, jf)
-		}
-
-		k, err := strconv.ParseUint(nums[3], 10, 32)
-		if err != nil {
-			t.Fatalf("malformed constant %s in instruction %d of %s", nums[3], i+1, allInstructionsExpected)
-		}
-		if actual.K != uint32(k) {
-			t.Errorf("constant mismatch on instruction %d (%#v): got %d, want %d", i+1, allInstructions[i], actual.K, k)
-		}
-	}
-}
-
-// Check that assembly and disassembly match each other.
-//
-// Because we offer "fake" jump conditions that don't appear in the
-// machine code, disassembly won't be a 1:1 match with the original
-// source, although the behavior will be identical. However,
-// reassembling the disassembly should produce an identical program.
-func TestAsmDisasm(t *testing.T) {
-	prog1, err := Assemble(allInstructions)
-	if err != nil {
-		t.Fatalf("assembly of allInstructions program failed: %s", err)
-	}
-	t.Logf("Assembled program is %d instructions long", len(prog1))
-
-	src, allDecoded := Disassemble(prog1)
-	if !allDecoded {
-		t.Errorf("Disassemble(Assemble(allInstructions)) produced unrecognized instructions:")
-		for i, inst := range src {
-			if r, ok := inst.(RawInstruction); ok {
-				t.Logf("  insn %d, %#v --> %#v", i+1, allInstructions[i], r)
-			}
-		}
-	}
-
-	prog2, err := Assemble(src)
-	if err != nil {
-		t.Fatalf("assembly of Disassemble(Assemble(allInstructions)) failed: %s", err)
-	}
-
-	if len(prog2) != len(prog1) {
-		t.Fatalf("disassembly changed program size: %d insns before, %d insns after", len(prog1), len(prog2))
-	}
-	if !reflect.DeepEqual(prog1, prog2) {
-		t.Errorf("program mutated by disassembly:")
-		for i := range prog2 {
-			if !reflect.DeepEqual(prog1[i], prog2[i]) {
-				t.Logf("  insn %d, s: %#v, p1: %#v, p2: %#v", i+1, allInstructions[i], prog1[i], prog2[i])
-			}
-		}
-	}
-}

vendor/golang.org/x/net/bpf/testdata/all_instructions.bpf

@@ -1 +0,0 @@
-50,0 0 0 42,1 0 0 42,96 0 0 3,97 0 0 3,48 0 0 42,40 0 0 42,32 0 0 42,80 0 0 42,72 0 0 42,64 0 0 42,177 0 0 42,128 0 0 0,32 0 0 4294963200,32 0 0 4294963204,32 0 0 4294963256,2 0 0 3,3 0 0 3,4 0 0 42,20 0 0 42,36 0 0 42,52 0 0 42,68 0 0 42,84 0 0 42,100 0 0 42,116 0 0 42,148 0 0 42,164 0 0 42,12 0 0 0,28 0 0 0,44 0 0 0,60 0 0 0,76 0 0 0,92 0 0 0,108 0 0 0,124 0 0 0,156 0 0 0,172 0 0 0,132 0 0 0,5 0 0 10,21 8 9 42,21 0 8 42,53 0 7 42,37 0 6 42,37 4 5 42,53 3 4 42,69 2 3 42,7 0 0 0,135 0 0 0,22 0 0 0,6 0 0 0,

vendor/golang.org/x/net/bpf/testdata/all_instructions.txt

@@ -1,79 +0,0 @@
-# This filter is compiled to all_instructions.bpf by the `bpf_asm`
-# tool, which can be found in the linux kernel source tree under
-# tools/net.
-
-# Load immediate
-ld #42
-ldx #42
-
-# Load scratch
-ld M[3]
-ldx M[3]
-
-# Load absolute
-ldb [42]
-ldh [42]
-ld [42]
-
-# Load indirect
-ldb [x + 42]
-ldh [x + 42]
-ld [x + 42]
-
-# Load IPv4 header length
-ldx 4*([42]&0xf)
-
-# Run extension function
-ld #len
-ld #proto
-ld #type
-ld #rand
-
-# Store scratch
-st M[3]
-stx M[3]
-
-# A <op> constant
-add #42
-sub #42
-mul #42
-div #42
-or #42
-and #42
-lsh #42
-rsh #42
-mod #42
-xor #42
-
-# A <op> X
-add x
-sub x
-mul x
-div x
-or x
-and x
-lsh x
-rsh x
-mod x
-xor x
-
-# !A
-neg
-
-# Jumps
-ja end
-jeq #42,prev,end
-jne #42,end
-jlt #42,end
-jle #42,end
-jgt #42,prev,end
-jge #42,prev,end
-jset #42,prev,end
-
-# Register transfers
-tax
-txa
-
-# Returns
-prev: ret a
-end: ret #42

vendor/golang.org/x/net/bpf/vm.go

@@ -1,140 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf
-
-import (
-	"errors"
-	"fmt"
-)
-
-// A VM is an emulated BPF virtual machine.
-type VM struct {
-	filter []Instruction
-}
-
-// NewVM returns a new VM using the input BPF program.
-func NewVM(filter []Instruction) (*VM, error) {
-	if len(filter) == 0 {
-		return nil, errors.New("one or more Instructions must be specified")
-	}
-
-	for i, ins := range filter {
-		check := len(filter) - (i + 1)
-		switch ins := ins.(type) {
-		// Check for out-of-bounds jumps in instructions
-		case Jump:
-			if check <= int(ins.Skip) {
-				return nil, fmt.Errorf("cannot jump %d instructions; jumping past program bounds", ins.Skip)
-			}
-		case JumpIf:
-			if check <= int(ins.SkipTrue) {
-				return nil, fmt.Errorf("cannot jump %d instructions in true case; jumping past program bounds", ins.SkipTrue)
-			}
-			if check <= int(ins.SkipFalse) {
-				return nil, fmt.Errorf("cannot jump %d instructions in false case; jumping past program bounds", ins.SkipFalse)
-			}
-		// Check for division or modulus by zero
-		case ALUOpConstant:
-			if ins.Val != 0 {
-				break
-			}
-
-			switch ins.Op {
-			case ALUOpDiv, ALUOpMod:
-				return nil, errors.New("cannot divide by zero using ALUOpConstant")
-			}
-		// Check for unknown extensions
-		case LoadExtension:
-			switch ins.Num {
-			case ExtLen:
-			default:
-				return nil, fmt.Errorf("extension %d not implemented", ins.Num)
-			}
-		}
-	}
-
-	// Make sure last instruction is a return instruction
-	switch filter[len(filter)-1].(type) {
-	case RetA, RetConstant:
-	default:
-		return nil, errors.New("BPF program must end with RetA or RetConstant")
-	}
-
-	// Though our VM works using disassembled instructions, we
-	// attempt to assemble the input filter anyway to ensure it is compatible
-	// with an operating system VM.
-	_, err := Assemble(filter)
-
-	return &VM{
-		filter: filter,
-	}, err
-}
-
-// Run runs the VM's BPF program against the input bytes.
-// Run returns the number of bytes accepted by the BPF program, and any errors
-// which occurred while processing the program.
-func (v *VM) Run(in []byte) (int, error) {
-	var (
-		// Registers of the virtual machine
-		regA       uint32
-		regX       uint32
-		regScratch [16]uint32
-
-		// OK is true if the program should continue processing the next
-		// instruction, or false if not, causing the loop to break
-		ok = true
-	)
-
-	// TODO(mdlayher): implement:
-	// - NegateA:
-	//   - would require a change from uint32 registers to int32
-	//     registers
-
-	// TODO(mdlayher): add interop tests that check signedness of ALU
-	// operations against kernel implementation, and make sure Go
-	// implementation matches behavior
-
-	for i := 0; i < len(v.filter) && ok; i++ {
-		ins := v.filter[i]
-
-		switch ins := ins.(type) {
-		case ALUOpConstant:
-			regA = aluOpConstant(ins, regA)
-		case ALUOpX:
-			regA, ok = aluOpX(ins, regA, regX)
-		case Jump:
-			i += int(ins.Skip)
-		case JumpIf:
-			jump := jumpIf(ins, regA)
-			i += jump
-		case LoadAbsolute:
-			regA, ok = loadAbsolute(ins, in)
-		case LoadConstant:
-			regA, regX = loadConstant(ins, regA, regX)
-		case LoadExtension:
-			regA = loadExtension(ins, in)
-		case LoadIndirect:
-			regA, ok = loadIndirect(ins, in, regX)
-		case LoadMemShift:
-			regX, ok = loadMemShift(ins, in)
-		case LoadScratch:
-			regA, regX = loadScratch(ins, regScratch, regA, regX)
-		case RetA:
-			return int(regA), nil
-		case RetConstant:
-			return int(ins.Val), nil
-		case StoreScratch:
-			regScratch = storeScratch(ins, regScratch, regA, regX)
-		case TAX:
-			regX = regA
-		case TXA:
-			regA = regX
-		default:
-			return 0, fmt.Errorf("unknown Instruction at index %d: %T", i, ins)
-		}
-	}
-
-	return 0, nil
-}

vendor/golang.org/x/net/bpf/vm_aluop_test.go

@@ -1,512 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf_test
-
-import (
-	"testing"
-
-	"golang.org/x/net/bpf"
-)
-
-func TestVMALUOpAdd(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpAdd,
-			Val: 3,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		8, 2, 3,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 3, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpSub(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.TAX{},
-		bpf.ALUOpX{
-			Op: bpf.ALUOpSub,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		1, 2, 3,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 0, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpMul(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpMul,
-			Val: 2,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		6, 2, 3, 4,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 4, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpDiv(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpDiv,
-			Val: 2,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		20, 2, 3, 4,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 2, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpDivByZeroALUOpConstant(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpDiv,
-			Val: 0,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "cannot divide by zero using ALUOpConstant" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMALUOpDivByZeroALUOpX(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		// Load byte 0 into X
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.TAX{},
-		// Load byte 1 into A
-		bpf.LoadAbsolute{
-			Off:  9,
-			Size: 1,
-		},
-		// Attempt to perform 1/0
-		bpf.ALUOpX{
-			Op: bpf.ALUOpDiv,
-		},
-		// Return 4 bytes if program does not terminate
-		bpf.LoadConstant{
-			Val: 12,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0, 1, 3, 4,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 0, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpOr(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 2,
-		},
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpOr,
-			Val: 0x01,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0x00, 0x10, 0x03, 0x04,
-		0x05, 0x06, 0x07, 0x08,
-		0x09, 0xff,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 9, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpAnd(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 2,
-		},
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpAnd,
-			Val: 0x0019,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0xaa, 0x09,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 1, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpShiftLeft(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpShiftLeft,
-			Val: 0x01,
-		},
-		bpf.JumpIf{
-			Cond:     bpf.JumpEqual,
-			Val:      0x02,
-			SkipTrue: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 9,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0x01, 0xaa,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 1, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpShiftRight(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpShiftRight,
-			Val: 0x01,
-		},
-		bpf.JumpIf{
-			Cond:     bpf.JumpEqual,
-			Val:      0x04,
-			SkipTrue: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 9,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0x08, 0xff, 0xff,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 1, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpMod(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpMod,
-			Val: 20,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		30, 0, 0,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 2, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpModByZeroALUOpConstant(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpMod,
-			Val: 0,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "cannot divide by zero using ALUOpConstant" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMALUOpModByZeroALUOpX(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		// Load byte 0 into X
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.TAX{},
-		// Load byte 1 into A
-		bpf.LoadAbsolute{
-			Off:  9,
-			Size: 1,
-		},
-		// Attempt to perform 1%0
-		bpf.ALUOpX{
-			Op: bpf.ALUOpMod,
-		},
-		// Return 4 bytes if program does not terminate
-		bpf.LoadConstant{
-			Val: 12,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0, 1, 3, 4,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 0, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpXor(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpXor,
-			Val: 0x0a,
-		},
-		bpf.JumpIf{
-			Cond:     bpf.JumpEqual,
-			Val:      0x01,
-			SkipTrue: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 9,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0x0b, 0x00, 0x00, 0x00,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 1, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMALUOpUnknown(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.ALUOpConstant{
-			Op:  bpf.ALUOpAdd,
-			Val: 1,
-		},
-		// Verify that an unknown operation is a no-op
-		bpf.ALUOpConstant{
-			Op: 100,
-		},
-		bpf.JumpIf{
-			Cond:     bpf.JumpEqual,
-			Val:      0x02,
-			SkipTrue: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 9,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		1,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 1, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}

vendor/golang.org/x/net/bpf/vm_bpf_test.go

@@ -1,192 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf_test
-
-import (
-	"net"
-	"runtime"
-	"testing"
-	"time"
-
-	"golang.org/x/net/bpf"
-	"golang.org/x/net/ipv4"
-)
-
-// A virtualMachine is a BPF virtual machine which can process an
-// input packet against a BPF program and render a verdict.
-type virtualMachine interface {
-	Run(in []byte) (int, error)
-}
-
-// canUseOSVM indicates if the OS BPF VM is available on this platform.
-func canUseOSVM() bool {
-	// OS BPF VM can only be used on platforms where x/net/ipv4 supports
-	// attaching a BPF program to a socket.
-	switch runtime.GOOS {
-	case "linux":
-		return true
-	}
-
-	return false
-}
-
-// All BPF tests against both the Go VM and OS VM are assumed to
-// be used with a UDP socket.  As a result, the entire contents
-// of a UDP datagram is sent through the BPF program, but only
-// the body after the UDP header will ever be returned in output.
-
-// testVM sets up a Go BPF VM, and if available, a native OS BPF VM
-// for integration testing.
-func testVM(t *testing.T, filter []bpf.Instruction) (virtualMachine, func(), error) {
-	goVM, err := bpf.NewVM(filter)
-	if err != nil {
-		// Some tests expect an error, so this error must be returned
-		// instead of fatally exiting the test
-		return nil, nil, err
-	}
-
-	mvm := &multiVirtualMachine{
-		goVM: goVM,
-
-		t: t,
-	}
-
-	// If available, add the OS VM for tests which verify that both the Go
-	// VM and OS VM have exactly the same output for the same input program
-	// and packet.
-	done := func() {}
-	if canUseOSVM() {
-		osVM, osVMDone := testOSVM(t, filter)
-		done = func() { osVMDone() }
-		mvm.osVM = osVM
-	}
-
-	return mvm, done, nil
-}
-
-// udpHeaderLen is the length of a UDP header.
-const udpHeaderLen = 8
-
-// A multiVirtualMachine is a virtualMachine which can call out to both the Go VM
-// and the native OS VM, if the OS VM is available.
-type multiVirtualMachine struct {
-	goVM virtualMachine
-	osVM virtualMachine
-
-	t *testing.T
-}
-
-func (mvm *multiVirtualMachine) Run(in []byte) (int, error) {
-	if len(in) < udpHeaderLen {
-		mvm.t.Fatalf("input must be at least length of UDP header (%d), got: %d",
-			udpHeaderLen, len(in))
-	}
-
-	// All tests have a UDP header as part of input, because the OS VM
-	// packets always will.  For the Go VM, this output is trimmed before
-	// being sent back to tests.
-	goOut, goErr := mvm.goVM.Run(in)
-	if goOut >= udpHeaderLen {
-		goOut -= udpHeaderLen
-	}
-
-	// If Go output is larger than the size of the packet, packet filtering
-	// interop tests must trim the output bytes to the length of the packet.
-	// The BPF VM should not do this on its own, as other uses of it do
-	// not trim the output byte count.
-	trim := len(in) - udpHeaderLen
-	if goOut > trim {
-		goOut = trim
-	}
-
-	// When the OS VM is not available, process using the Go VM alone
-	if mvm.osVM == nil {
-		return goOut, goErr
-	}
-
-	// The OS VM will apply its own UDP header, so remove the pseudo header
-	// that the Go VM needs.
-	osOut, err := mvm.osVM.Run(in[udpHeaderLen:])
-	if err != nil {
-		mvm.t.Fatalf("error while running OS VM: %v", err)
-	}
-
-	// Verify both VMs return same number of bytes
-	var mismatch bool
-	if goOut != osOut {
-		mismatch = true
-		mvm.t.Logf("output byte count does not match:\n- go: %v\n- os: %v", goOut, osOut)
-	}
-
-	if mismatch {
-		mvm.t.Fatal("Go BPF and OS BPF packet outputs do not match")
-	}
-
-	return goOut, goErr
-}
-
-// An osVirtualMachine is a virtualMachine which uses the OS's BPF VM for
-// processing BPF programs.
-type osVirtualMachine struct {
-	l net.PacketConn
-	s net.Conn
-}
-
-// testOSVM creates a virtualMachine which uses the OS's BPF VM by injecting
-// packets into a UDP listener with a BPF program attached to it.
-func testOSVM(t *testing.T, filter []bpf.Instruction) (virtualMachine, func()) {
-	l, err := net.ListenPacket("udp4", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to open OS VM UDP listener: %v", err)
-	}
-
-	prog, err := bpf.Assemble(filter)
-	if err != nil {
-		t.Fatalf("failed to compile BPF program: %v", err)
-	}
-
-	p := ipv4.NewPacketConn(l)
-	if err = p.SetBPF(prog); err != nil {
-		t.Fatalf("failed to attach BPF program to listener: %v", err)
-	}
-
-	s, err := net.Dial("udp4", l.LocalAddr().String())
-	if err != nil {
-		t.Fatalf("failed to dial connection to listener: %v", err)
-	}
-
-	done := func() {
-		_ = s.Close()
-		_ = l.Close()
-	}
-
-	return &osVirtualMachine{
-		l: l,
-		s: s,
-	}, done
-}
-
-// Run sends the input bytes into the OS's BPF VM and returns its verdict.
-func (vm *osVirtualMachine) Run(in []byte) (int, error) {
-	go func() {
-		_, _ = vm.s.Write(in)
-	}()
-
-	vm.l.SetDeadline(time.Now().Add(50 * time.Millisecond))
-
-	var b [512]byte
-	n, _, err := vm.l.ReadFrom(b[:])
-	if err != nil {
-		// A timeout indicates that BPF filtered out the packet, and thus,
-		// no input should be returned.
-		if nerr, ok := err.(net.Error); ok && nerr.Timeout() {
-			return n, nil
-		}
-
-		return n, err
-	}
-
-	return n, nil
-}

vendor/golang.org/x/net/bpf/vm_extension_test.go

@@ -1,49 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf_test
-
-import (
-	"testing"
-
-	"golang.org/x/net/bpf"
-)
-
-func TestVMLoadExtensionNotImplemented(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.LoadExtension{
-			Num: 100,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "extension 100 not implemented" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMLoadExtensionExtLen(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadExtension{
-			Num: bpf.ExtLen,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0, 1, 2, 3,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 4, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}

vendor/golang.org/x/net/bpf/vm_instructions.go

@@ -1,174 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf
-
-import (
-	"encoding/binary"
-	"fmt"
-)
-
-func aluOpConstant(ins ALUOpConstant, regA uint32) uint32 {
-	return aluOpCommon(ins.Op, regA, ins.Val)
-}
-
-func aluOpX(ins ALUOpX, regA uint32, regX uint32) (uint32, bool) {
-	// Guard against division or modulus by zero by terminating
-	// the program, as the OS BPF VM does
-	if regX == 0 {
-		switch ins.Op {
-		case ALUOpDiv, ALUOpMod:
-			return 0, false
-		}
-	}
-
-	return aluOpCommon(ins.Op, regA, regX), true
-}
-
-func aluOpCommon(op ALUOp, regA uint32, value uint32) uint32 {
-	switch op {
-	case ALUOpAdd:
-		return regA + value
-	case ALUOpSub:
-		return regA - value
-	case ALUOpMul:
-		return regA * value
-	case ALUOpDiv:
-		// Division by zero not permitted by NewVM and aluOpX checks
-		return regA / value
-	case ALUOpOr:
-		return regA | value
-	case ALUOpAnd:
-		return regA & value
-	case ALUOpShiftLeft:
-		return regA << value
-	case ALUOpShiftRight:
-		return regA >> value
-	case ALUOpMod:
-		// Modulus by zero not permitted by NewVM and aluOpX checks
-		return regA % value
-	case ALUOpXor:
-		return regA ^ value
-	default:
-		return regA
-	}
-}
-
-func jumpIf(ins JumpIf, value uint32) int {
-	var ok bool
-	inV := uint32(ins.Val)
-
-	switch ins.Cond {
-	case JumpEqual:
-		ok = value == inV
-	case JumpNotEqual:
-		ok = value != inV
-	case JumpGreaterThan:
-		ok = value > inV
-	case JumpLessThan:
-		ok = value < inV
-	case JumpGreaterOrEqual:
-		ok = value >= inV
-	case JumpLessOrEqual:
-		ok = value <= inV
-	case JumpBitsSet:
-		ok = (value & inV) != 0
-	case JumpBitsNotSet:
-		ok = (value & inV) == 0
-	}
-
-	if ok {
-		return int(ins.SkipTrue)
-	}
-
-	return int(ins.SkipFalse)
-}
-
-func loadAbsolute(ins LoadAbsolute, in []byte) (uint32, bool) {
-	offset := int(ins.Off)
-	size := int(ins.Size)
-
-	return loadCommon(in, offset, size)
-}
-
-func loadConstant(ins LoadConstant, regA uint32, regX uint32) (uint32, uint32) {
-	switch ins.Dst {
-	case RegA:
-		regA = ins.Val
-	case RegX:
-		regX = ins.Val
-	}
-
-	return regA, regX
-}
-
-func loadExtension(ins LoadExtension, in []byte) uint32 {
-	switch ins.Num {
-	case ExtLen:
-		return uint32(len(in))
-	default:
-		panic(fmt.Sprintf("unimplemented extension: %d", ins.Num))
-	}
-}
-
-func loadIndirect(ins LoadIndirect, in []byte, regX uint32) (uint32, bool) {
-	offset := int(ins.Off) + int(regX)
-	size := int(ins.Size)
-
-	return loadCommon(in, offset, size)
-}
-
-func loadMemShift(ins LoadMemShift, in []byte) (uint32, bool) {
-	offset := int(ins.Off)
-
-	if !inBounds(len(in), offset, 0) {
-		return 0, false
-	}
-
-	// Mask off high 4 bits and multiply low 4 bits by 4
-	return uint32(in[offset]&0x0f) * 4, true
-}
-
-func inBounds(inLen int, offset int, size int) bool {
-	return offset+size <= inLen
-}
-
-func loadCommon(in []byte, offset int, size int) (uint32, bool) {
-	if !inBounds(len(in), offset, size) {
-		return 0, false
-	}
-
-	switch size {
-	case 1:
-		return uint32(in[offset]), true
-	case 2:
-		return uint32(binary.BigEndian.Uint16(in[offset : offset+size])), true
-	case 4:
-		return uint32(binary.BigEndian.Uint32(in[offset : offset+size])), true
-	default:
-		panic(fmt.Sprintf("invalid load size: %d", size))
-	}
-}
-
-func loadScratch(ins LoadScratch, regScratch [16]uint32, regA uint32, regX uint32) (uint32, uint32) {
-	switch ins.Dst {
-	case RegA:
-		regA = regScratch[ins.N]
-	case RegX:
-		regX = regScratch[ins.N]
-	}
-
-	return regA, regX
-}
-
-func storeScratch(ins StoreScratch, regScratch [16]uint32, regA uint32, regX uint32) [16]uint32 {
-	switch ins.Src {
-	case RegA:
-		regScratch[ins.N] = regA
-	case RegX:
-		regScratch[ins.N] = regX
-	}
-
-	return regScratch
-}

vendor/golang.org/x/net/bpf/vm_jump_test.go

@@ -1,380 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf_test
-
-import (
-	"testing"
-
-	"golang.org/x/net/bpf"
-)
-
-func TestVMJumpOne(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.Jump{
-			Skip: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 9,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		1,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 1, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMJumpOutOfProgram(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.Jump{
-			Skip: 1,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "cannot jump 1 instructions; jumping past program bounds" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMJumpIfTrueOutOfProgram(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.JumpIf{
-			Cond:     bpf.JumpEqual,
-			SkipTrue: 2,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "cannot jump 2 instructions in true case; jumping past program bounds" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMJumpIfFalseOutOfProgram(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.JumpIf{
-			Cond:      bpf.JumpEqual,
-			SkipFalse: 3,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "cannot jump 3 instructions in false case; jumping past program bounds" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMJumpIfEqual(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.JumpIf{
-			Cond:     bpf.JumpEqual,
-			Val:      1,
-			SkipTrue: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 9,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		1,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 1, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMJumpIfNotEqual(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.JumpIf{
-			Cond:      bpf.JumpNotEqual,
-			Val:       1,
-			SkipFalse: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 9,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		1,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 1, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMJumpIfGreaterThan(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 4,
-		},
-		bpf.JumpIf{
-			Cond:     bpf.JumpGreaterThan,
-			Val:      0x00010202,
-			SkipTrue: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 12,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0, 1, 2, 3,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 4, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMJumpIfLessThan(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 4,
-		},
-		bpf.JumpIf{
-			Cond:     bpf.JumpLessThan,
-			Val:      0xff010203,
-			SkipTrue: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 12,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0, 1, 2, 3,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 4, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMJumpIfGreaterOrEqual(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 4,
-		},
-		bpf.JumpIf{
-			Cond:     bpf.JumpGreaterOrEqual,
-			Val:      0x00010203,
-			SkipTrue: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 12,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0, 1, 2, 3,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 4, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMJumpIfLessOrEqual(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 4,
-		},
-		bpf.JumpIf{
-			Cond:     bpf.JumpLessOrEqual,
-			Val:      0xff010203,
-			SkipTrue: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 12,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0, 1, 2, 3,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 4, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMJumpIfBitsSet(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 2,
-		},
-		bpf.JumpIf{
-			Cond:     bpf.JumpBitsSet,
-			Val:      0x1122,
-			SkipTrue: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 10,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0x01, 0x02,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 2, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMJumpIfBitsNotSet(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 2,
-		},
-		bpf.JumpIf{
-			Cond:     bpf.JumpBitsNotSet,
-			Val:      0x1221,
-			SkipTrue: 1,
-		},
-		bpf.RetConstant{
-			Val: 0,
-		},
-		bpf.RetConstant{
-			Val: 10,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0x01, 0x02,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 2, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}

vendor/golang.org/x/net/bpf/vm_load_test.go

@@ -1,246 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf_test
-
-import (
-	"net"
-	"testing"
-
-	"golang.org/x/net/bpf"
-	"golang.org/x/net/ipv4"
-)
-
-func TestVMLoadAbsoluteOffsetOutOfBounds(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  100,
-			Size: 2,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0, 1, 2, 3,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 0, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMLoadAbsoluteOffsetPlusSizeOutOfBounds(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 2,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 0, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMLoadAbsoluteBadInstructionSize(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Size: 5,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "assembling instruction 1: invalid load byte length 0" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMLoadConstantOK(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadConstant{
-			Dst: bpf.RegX,
-			Val: 9,
-		},
-		bpf.TXA{},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 1, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMLoadIndirectOutOfBounds(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadIndirect{
-			Off:  100,
-			Size: 1,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 0, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMLoadMemShiftOutOfBounds(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadMemShift{
-			Off: 100,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 0, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-const (
-	dhcp4Port = 53
-)
-
-func TestVMLoadMemShiftLoadIndirectNoResult(t *testing.T) {
-	vm, in, done := testDHCPv4(t)
-	defer done()
-
-	// Append mostly empty UDP header with incorrect DHCPv4 port
-	in = append(in, []byte{
-		0, 0,
-		0, dhcp4Port + 1,
-		0, 0,
-		0, 0,
-	}...)
-
-	out, err := vm.Run(in)
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 0, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMLoadMemShiftLoadIndirectOK(t *testing.T) {
-	vm, in, done := testDHCPv4(t)
-	defer done()
-
-	// Append mostly empty UDP header with correct DHCPv4 port
-	in = append(in, []byte{
-		0, 0,
-		0, dhcp4Port,
-		0, 0,
-		0, 0,
-	}...)
-
-	out, err := vm.Run(in)
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := len(in)-8, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func testDHCPv4(t *testing.T) (virtualMachine, []byte, func()) {
-	// DHCPv4 test data courtesy of David Anderson:
-	// https://github.com/google/netboot/blob/master/dhcp4/conn_linux.go#L59-L70
-	vm, done, err := testVM(t, []bpf.Instruction{
-		// Load IPv4 packet length
-		bpf.LoadMemShift{Off: 8},
-		// Get UDP dport
-		bpf.LoadIndirect{Off: 8 + 2, Size: 2},
-		// Correct dport?
-		bpf.JumpIf{Cond: bpf.JumpEqual, Val: dhcp4Port, SkipFalse: 1},
-		// Accept
-		bpf.RetConstant{Val: 1500},
-		// Ignore
-		bpf.RetConstant{Val: 0},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-
-	// Minimal requirements to make a valid IPv4 header
-	h := &ipv4.Header{
-		Len: ipv4.HeaderLen,
-		Src: net.IPv4(192, 168, 1, 1),
-		Dst: net.IPv4(192, 168, 1, 2),
-	}
-	hb, err := h.Marshal()
-	if err != nil {
-		t.Fatalf("failed to marshal IPv4 header: %v", err)
-	}
-
-	hb = append([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-	}, hb...)
-
-	return vm, hb, done
-}

vendor/golang.org/x/net/bpf/vm_ret_test.go

@@ -1,115 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf_test
-
-import (
-	"testing"
-
-	"golang.org/x/net/bpf"
-)
-
-func TestVMRetA(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		9,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 1, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMRetALargerThanInput(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 2,
-		},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0, 255,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 2, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMRetConstant(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.RetConstant{
-			Val: 9,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0, 1,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 1, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMRetConstantLargerThanInput(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.RetConstant{
-			Val: 16,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0, 1,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 2, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}

vendor/golang.org/x/net/bpf/vm_scratch_test.go

@@ -1,247 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf_test
-
-import (
-	"testing"
-
-	"golang.org/x/net/bpf"
-)
-
-func TestVMStoreScratchInvalidScratchRegisterTooSmall(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.StoreScratch{
-			Src: bpf.RegA,
-			N:   -1,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "assembling instruction 1: invalid scratch slot -1" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMStoreScratchInvalidScratchRegisterTooLarge(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.StoreScratch{
-			Src: bpf.RegA,
-			N:   16,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "assembling instruction 1: invalid scratch slot 16" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMStoreScratchUnknownSourceRegister(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.StoreScratch{
-			Src: 100,
-			N:   0,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "assembling instruction 1: invalid source register 100" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMLoadScratchInvalidScratchRegisterTooSmall(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.LoadScratch{
-			Dst: bpf.RegX,
-			N:   -1,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "assembling instruction 1: invalid scratch slot -1" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMLoadScratchInvalidScratchRegisterTooLarge(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.LoadScratch{
-			Dst: bpf.RegX,
-			N:   16,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "assembling instruction 1: invalid scratch slot 16" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMLoadScratchUnknownDestinationRegister(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.LoadScratch{
-			Dst: 100,
-			N:   0,
-		},
-		bpf.RetA{},
-	})
-	if errStr(err) != "assembling instruction 1: invalid target register 100" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMStoreScratchLoadScratchOneValue(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		// Load byte 255
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		// Copy to X and store in scratch[0]
-		bpf.TAX{},
-		bpf.StoreScratch{
-			Src: bpf.RegX,
-			N:   0,
-		},
-		// Load byte 1
-		bpf.LoadAbsolute{
-			Off:  9,
-			Size: 1,
-		},
-		// Overwrite 1 with 255 from scratch[0]
-		bpf.LoadScratch{
-			Dst: bpf.RegA,
-			N:   0,
-		},
-		// Return 255
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		255, 1, 2,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 3, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}
-
-func TestVMStoreScratchLoadScratchMultipleValues(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		// Load byte 10
-		bpf.LoadAbsolute{
-			Off:  8,
-			Size: 1,
-		},
-		// Store in scratch[0]
-		bpf.StoreScratch{
-			Src: bpf.RegA,
-			N:   0,
-		},
-		// Load byte 20
-		bpf.LoadAbsolute{
-			Off:  9,
-			Size: 1,
-		},
-		// Store in scratch[1]
-		bpf.StoreScratch{
-			Src: bpf.RegA,
-			N:   1,
-		},
-		// Load byte 30
-		bpf.LoadAbsolute{
-			Off:  10,
-			Size: 1,
-		},
-		// Store in scratch[2]
-		bpf.StoreScratch{
-			Src: bpf.RegA,
-			N:   2,
-		},
-		// Load byte 1
-		bpf.LoadAbsolute{
-			Off:  11,
-			Size: 1,
-		},
-		// Store in scratch[3]
-		bpf.StoreScratch{
-			Src: bpf.RegA,
-			N:   3,
-		},
-		// Load in byte 10 to X
-		bpf.LoadScratch{
-			Dst: bpf.RegX,
-			N:   0,
-		},
-		// Copy X -> A
-		bpf.TXA{},
-		// Verify value is 10
-		bpf.JumpIf{
-			Cond:     bpf.JumpEqual,
-			Val:      10,
-			SkipTrue: 1,
-		},
-		// Fail test if incorrect
-		bpf.RetConstant{
-			Val: 0,
-		},
-		// Load in byte 20 to A
-		bpf.LoadScratch{
-			Dst: bpf.RegA,
-			N:   1,
-		},
-		// Verify value is 20
-		bpf.JumpIf{
-			Cond:     bpf.JumpEqual,
-			Val:      20,
-			SkipTrue: 1,
-		},
-		// Fail test if incorrect
-		bpf.RetConstant{
-			Val: 0,
-		},
-		// Load in byte 30 to A
-		bpf.LoadScratch{
-			Dst: bpf.RegA,
-			N:   2,
-		},
-		// Verify value is 30
-		bpf.JumpIf{
-			Cond:     bpf.JumpEqual,
-			Val:      30,
-			SkipTrue: 1,
-		},
-		// Fail test if incorrect
-		bpf.RetConstant{
-			Val: 0,
-		},
-		// Return first two bytes on success
-		bpf.RetConstant{
-			Val: 10,
-		},
-	})
-	if err != nil {
-		t.Fatalf("failed to load BPF program: %v", err)
-	}
-	defer done()
-
-	out, err := vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		10, 20, 30, 1,
-	})
-	if err != nil {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-	if want, got := 2, out; want != got {
-		t.Fatalf("unexpected number of output bytes:\n- want: %d\n-  got: %d",
-			want, got)
-	}
-}

vendor/golang.org/x/net/bpf/vm_test.go

@@ -1,144 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bpf_test
-
-import (
-	"fmt"
-	"testing"
-
-	"golang.org/x/net/bpf"
-)
-
-var _ bpf.Instruction = unknown{}
-
-type unknown struct{}
-
-func (unknown) Assemble() (bpf.RawInstruction, error) {
-	return bpf.RawInstruction{}, nil
-}
-
-func TestVMUnknownInstruction(t *testing.T) {
-	vm, done, err := testVM(t, []bpf.Instruction{
-		bpf.LoadConstant{
-			Dst: bpf.RegA,
-			Val: 100,
-		},
-		// Should terminate the program with an error immediately
-		unknown{},
-		bpf.RetA{},
-	})
-	if err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	defer done()
-
-	_, err = vm.Run([]byte{
-		0xff, 0xff, 0xff, 0xff,
-		0xff, 0xff, 0xff, 0xff,
-		0x00, 0x00,
-	})
-	if errStr(err) != "unknown Instruction at index 1: bpf_test.unknown" {
-		t.Fatalf("unexpected error while running program: %v", err)
-	}
-}
-
-func TestVMNoReturnInstruction(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{
-		bpf.LoadConstant{
-			Dst: bpf.RegA,
-			Val: 1,
-		},
-	})
-	if errStr(err) != "BPF program must end with RetA or RetConstant" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-func TestVMNoInputInstructions(t *testing.T) {
-	_, _, err := testVM(t, []bpf.Instruction{})
-	if errStr(err) != "one or more Instructions must be specified" {
-		t.Fatalf("unexpected error: %v", err)
-	}
-}
-
-// ExampleNewVM demonstrates usage of a VM, using an Ethernet frame
-// as input and checking its EtherType to determine if it should be accepted.
-func ExampleNewVM() {
-	// Offset | Length | Comment
-	// -------------------------
-	//   00   |   06   | Ethernet destination MAC address
-	//   06   |   06   | Ethernet source MAC address
-	//   12   |   02   | Ethernet EtherType
-	const (
-		etOff = 12
-		etLen = 2
-
-		etARP = 0x0806
-	)
-
-	// Set up a VM to filter traffic based on if its EtherType
-	// matches the ARP EtherType.
-	vm, err := bpf.NewVM([]bpf.Instruction{
-		// Load EtherType value from Ethernet header
-		bpf.LoadAbsolute{
-			Off:  etOff,
-			Size: etLen,
-		},
-		// If EtherType is equal to the ARP EtherType, jump to allow
-		// packet to be accepted
-		bpf.JumpIf{
-			Cond:     bpf.JumpEqual,
-			Val:      etARP,
-			SkipTrue: 1,
-		},
-		// EtherType does not match the ARP EtherType
-		bpf.RetConstant{
-			Val: 0,
-		},
-		// EtherType matches the ARP EtherType, accept up to 1500
-		// bytes of packet
-		bpf.RetConstant{
-			Val: 1500,
-		},
-	})
-	if err != nil {
-		panic(fmt.Sprintf("failed to load BPF program: %v", err))
-	}
-
-	// Create an Ethernet frame with the ARP EtherType for testing
-	frame := []byte{
-		0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-		0x00, 0x11, 0x22, 0x33, 0x44, 0x55,
-		0x08, 0x06,
-		// Payload omitted for brevity
-	}
-
-	// Run our VM's BPF program using the Ethernet frame as input
-	out, err := vm.Run(frame)
-	if err != nil {
-		panic(fmt.Sprintf("failed to accept Ethernet frame: %v", err))
-	}
-
-	// BPF VM can return a byte count greater than the number of input
-	// bytes, so trim the output to match the input byte length
-	if out > len(frame) {
-		out = len(frame)
-	}
-
-	fmt.Printf("out: %d bytes", out)
-
-	// Output:
-	// out: 14 bytes
-}
-
-// errStr returns the string representation of an error, or
-// "<nil>" if it is nil.
-func errStr(err error) string {
-	if err == nil {
-		return "<nil>"
-	}
-
-	return err.Error()
-}

vendor/golang.org/x/net/codereview.cfg

@@ -1 +0,0 @@
-issuerepo: golang/go

vendor/golang.org/x/net/context/context.go

@@ -1,156 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package context defines the Context type, which carries deadlines,
-// cancelation signals, and other request-scoped values across API boundaries
-// and between processes.
-//
-// Incoming requests to a server should create a Context, and outgoing calls to
-// servers should accept a Context.  The chain of function calls between must
-// propagate the Context, optionally replacing it with a modified copy created
-// using WithDeadline, WithTimeout, WithCancel, or WithValue.
-//
-// Programs that use Contexts should follow these rules to keep interfaces
-// consistent across packages and enable static analysis tools to check context
-// propagation:
-//
-// Do not store Contexts inside a struct type; instead, pass a Context
-// explicitly to each function that needs it.  The Context should be the first
-// parameter, typically named ctx:
-//
-// 	func DoSomething(ctx context.Context, arg Arg) error {
-// 		// ... use ctx ...
-// 	}
-//
-// Do not pass a nil Context, even if a function permits it.  Pass context.TODO
-// if you are unsure about which Context to use.
-//
-// Use context Values only for request-scoped data that transits processes and
-// APIs, not for passing optional parameters to functions.
-//
-// The same Context may be passed to functions running in different goroutines;
-// Contexts are safe for simultaneous use by multiple goroutines.
-//
-// See http://blog.golang.org/context for example code for a server that uses
-// Contexts.
-package context // import "golang.org/x/net/context"
-
-import "time"
-
-// A Context carries a deadline, a cancelation signal, and other values across
-// API boundaries.
-//
-// Context's methods may be called by multiple goroutines simultaneously.
-type Context interface {
-	// Deadline returns the time when work done on behalf of this context
-	// should be canceled.  Deadline returns ok==false when no deadline is
-	// set.  Successive calls to Deadline return the same results.
-	Deadline() (deadline time.Time, ok bool)
-
-	// Done returns a channel that's closed when work done on behalf of this
-	// context should be canceled.  Done may return nil if this context can
-	// never be canceled.  Successive calls to Done return the same value.
-	//
-	// WithCancel arranges for Done to be closed when cancel is called;
-	// WithDeadline arranges for Done to be closed when the deadline
-	// expires; WithTimeout arranges for Done to be closed when the timeout
-	// elapses.
-	//
-	// Done is provided for use in select statements:
-	//
-	//  // Stream generates values with DoSomething and sends them to out
-	//  // until DoSomething returns an error or ctx.Done is closed.
-	//  func Stream(ctx context.Context, out chan<- Value) error {
-	//  	for {
-	//  		v, err := DoSomething(ctx)
-	//  		if err != nil {
-	//  			return err
-	//  		}
-	//  		select {
-	//  		case <-ctx.Done():
-	//  			return ctx.Err()
-	//  		case out <- v:
-	//  		}
-	//  	}
-	//  }
-	//
-	// See http://blog.golang.org/pipelines for more examples of how to use
-	// a Done channel for cancelation.
-	Done() <-chan struct{}
-
-	// Err returns a non-nil error value after Done is closed.  Err returns
-	// Canceled if the context was canceled or DeadlineExceeded if the
-	// context's deadline passed.  No other values for Err are defined.
-	// After Done is closed, successive calls to Err return the same value.
-	Err() error
-
-	// Value returns the value associated with this context for key, or nil
-	// if no value is associated with key.  Successive calls to Value with
-	// the same key returns the same result.
-	//
-	// Use context values only for request-scoped data that transits
-	// processes and API boundaries, not for passing optional parameters to
-	// functions.
-	//
-	// A key identifies a specific value in a Context.  Functions that wish
-	// to store values in Context typically allocate a key in a global
-	// variable then use that key as the argument to context.WithValue and
-	// Context.Value.  A key can be any type that supports equality;
-	// packages should define keys as an unexported type to avoid
-	// collisions.
-	//
-	// Packages that define a Context key should provide type-safe accessors
-	// for the values stores using that key:
-	//
-	// 	// Package user defines a User type that's stored in Contexts.
-	// 	package user
-	//
-	// 	import "golang.org/x/net/context"
-	//
-	// 	// User is the type of value stored in the Contexts.
-	// 	type User struct {...}
-	//
-	// 	// key is an unexported type for keys defined in this package.
-	// 	// This prevents collisions with keys defined in other packages.
-	// 	type key int
-	//
-	// 	// userKey is the key for user.User values in Contexts.  It is
-	// 	// unexported; clients use user.NewContext and user.FromContext
-	// 	// instead of using this key directly.
-	// 	var userKey key = 0
-	//
-	// 	// NewContext returns a new Context that carries value u.
-	// 	func NewContext(ctx context.Context, u *User) context.Context {
-	// 		return context.WithValue(ctx, userKey, u)
-	// 	}
-	//
-	// 	// FromContext returns the User value stored in ctx, if any.
-	// 	func FromContext(ctx context.Context) (*User, bool) {
-	// 		u, ok := ctx.Value(userKey).(*User)
-	// 		return u, ok
-	// 	}
-	Value(key interface{}) interface{}
-}
-
-// Background returns a non-nil, empty Context. It is never canceled, has no
-// values, and has no deadline.  It is typically used by the main function,
-// initialization, and tests, and as the top-level Context for incoming
-// requests.
-func Background() Context {
-	return background
-}
-
-// TODO returns a non-nil, empty Context.  Code should use context.TODO when
-// it's unclear which Context to use or it is not yet available (because the
-// surrounding function has not yet been extended to accept a Context
-// parameter).  TODO is recognized by static analysis tools that determine
-// whether Contexts are propagated correctly in a program.
-func TODO() Context {
-	return todo
-}
-
-// A CancelFunc tells an operation to abandon its work.
-// A CancelFunc does not wait for the work to stop.
-// After the first call, subsequent calls to a CancelFunc do nothing.
-type CancelFunc func()

vendor/golang.org/x/net/context/context_test.go

@@ -1,583 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !go1.7
-
-package context
-
-import (
-	"fmt"
-	"math/rand"
-	"runtime"
-	"strings"
-	"sync"
-	"testing"
-	"time"
-)
-
-// otherContext is a Context that's not one of the types defined in context.go.
-// This lets us test code paths that differ based on the underlying type of the
-// Context.
-type otherContext struct {
-	Context
-}
-
-func TestBackground(t *testing.T) {
-	c := Background()
-	if c == nil {
-		t.Fatalf("Background returned nil")
-	}
-	select {
-	case x := <-c.Done():
-		t.Errorf("<-c.Done() == %v want nothing (it should block)", x)
-	default:
-	}
-	if got, want := fmt.Sprint(c), "context.Background"; got != want {
-		t.Errorf("Background().String() = %q want %q", got, want)
-	}
-}
-
-func TestTODO(t *testing.T) {
-	c := TODO()
-	if c == nil {
-		t.Fatalf("TODO returned nil")
-	}
-	select {
-	case x := <-c.Done():
-		t.Errorf("<-c.Done() == %v want nothing (it should block)", x)
-	default:
-	}
-	if got, want := fmt.Sprint(c), "context.TODO"; got != want {
-		t.Errorf("TODO().String() = %q want %q", got, want)
-	}
-}
-
-func TestWithCancel(t *testing.T) {
-	c1, cancel := WithCancel(Background())
-
-	if got, want := fmt.Sprint(c1), "context.Background.WithCancel"; got != want {
-		t.Errorf("c1.String() = %q want %q", got, want)
-	}
-
-	o := otherContext{c1}
-	c2, _ := WithCancel(o)
-	contexts := []Context{c1, o, c2}
-
-	for i, c := range contexts {
-		if d := c.Done(); d == nil {
-			t.Errorf("c[%d].Done() == %v want non-nil", i, d)
-		}
-		if e := c.Err(); e != nil {
-			t.Errorf("c[%d].Err() == %v want nil", i, e)
-		}
-
-		select {
-		case x := <-c.Done():
-			t.Errorf("<-c.Done() == %v want nothing (it should block)", x)
-		default:
-		}
-	}
-
-	cancel()
-	time.Sleep(100 * time.Millisecond) // let cancelation propagate
-
-	for i, c := range contexts {
-		select {
-		case <-c.Done():
-		default:
-			t.Errorf("<-c[%d].Done() blocked, but shouldn't have", i)
-		}
-		if e := c.Err(); e != Canceled {
-			t.Errorf("c[%d].Err() == %v want %v", i, e, Canceled)
-		}
-	}
-}
-
-func TestParentFinishesChild(t *testing.T) {
-	// Context tree:
-	// parent -> cancelChild
-	// parent -> valueChild -> timerChild
-	parent, cancel := WithCancel(Background())
-	cancelChild, stop := WithCancel(parent)
-	defer stop()
-	valueChild := WithValue(parent, "key", "value")
-	timerChild, stop := WithTimeout(valueChild, 10000*time.Hour)
-	defer stop()
-
-	select {
-	case x := <-parent.Done():
-		t.Errorf("<-parent.Done() == %v want nothing (it should block)", x)
-	case x := <-cancelChild.Done():
-		t.Errorf("<-cancelChild.Done() == %v want nothing (it should block)", x)
-	case x := <-timerChild.Done():
-		t.Errorf("<-timerChild.Done() == %v want nothing (it should block)", x)
-	case x := <-valueChild.Done():
-		t.Errorf("<-valueChild.Done() == %v want nothing (it should block)", x)
-	default:
-	}
-
-	// The parent's children should contain the two cancelable children.
-	pc := parent.(*cancelCtx)
-	cc := cancelChild.(*cancelCtx)
-	tc := timerChild.(*timerCtx)
-	pc.mu.Lock()
-	if len(pc.children) != 2 || !pc.children[cc] || !pc.children[tc] {
-		t.Errorf("bad linkage: pc.children = %v, want %v and %v",
-			pc.children, cc, tc)
-	}
-	pc.mu.Unlock()
-
-	if p, ok := parentCancelCtx(cc.Context); !ok || p != pc {
-		t.Errorf("bad linkage: parentCancelCtx(cancelChild.Context) = %v, %v want %v, true", p, ok, pc)
-	}
-	if p, ok := parentCancelCtx(tc.Context); !ok || p != pc {
-		t.Errorf("bad linkage: parentCancelCtx(timerChild.Context) = %v, %v want %v, true", p, ok, pc)
-	}
-
-	cancel()
-
-	pc.mu.Lock()
-	if len(pc.children) != 0 {
-		t.Errorf("pc.cancel didn't clear pc.children = %v", pc.children)
-	}
-	pc.mu.Unlock()
-
-	// parent and children should all be finished.
-	check := func(ctx Context, name string) {
-		select {
-		case <-ctx.Done():
-		default:
-			t.Errorf("<-%s.Done() blocked, but shouldn't have", name)
-		}
-		if e := ctx.Err(); e != Canceled {
-			t.Errorf("%s.Err() == %v want %v", name, e, Canceled)
-		}
-	}
-	check(parent, "parent")
-	check(cancelChild, "cancelChild")
-	check(valueChild, "valueChild")
-	check(timerChild, "timerChild")
-
-	// WithCancel should return a canceled context on a canceled parent.
-	precanceledChild := WithValue(parent, "key", "value")
-	select {
-	case <-precanceledChild.Done():
-	default:
-		t.Errorf("<-precanceledChild.Done() blocked, but shouldn't have")
-	}
-	if e := precanceledChild.Err(); e != Canceled {
-		t.Errorf("precanceledChild.Err() == %v want %v", e, Canceled)
-	}
-}
-
-func TestChildFinishesFirst(t *testing.T) {
-	cancelable, stop := WithCancel(Background())
-	defer stop()
-	for _, parent := range []Context{Background(), cancelable} {
-		child, cancel := WithCancel(parent)
-
-		select {
-		case x := <-parent.Done():
-			t.Errorf("<-parent.Done() == %v want nothing (it should block)", x)
-		case x := <-child.Done():
-			t.Errorf("<-child.Done() == %v want nothing (it should block)", x)
-		default:
-		}
-
-		cc := child.(*cancelCtx)
-		pc, pcok := parent.(*cancelCtx) // pcok == false when parent == Background()
-		if p, ok := parentCancelCtx(cc.Context); ok != pcok || (ok && pc != p) {
-			t.Errorf("bad linkage: parentCancelCtx(cc.Context) = %v, %v want %v, %v", p, ok, pc, pcok)
-		}
-
-		if pcok {
-			pc.mu.Lock()
-			if len(pc.children) != 1 || !pc.children[cc] {
-				t.Errorf("bad linkage: pc.children = %v, cc = %v", pc.children, cc)
-			}
-			pc.mu.Unlock()
-		}
-
-		cancel()
-
-		if pcok {
-			pc.mu.Lock()
-			if len(pc.children) != 0 {
-				t.Errorf("child's cancel didn't remove self from pc.children = %v", pc.children)
-			}
-			pc.mu.Unlock()
-		}
-
-		// child should be finished.
-		select {
-		case <-child.Done():
-		default:
-			t.Errorf("<-child.Done() blocked, but shouldn't have")
-		}
-		if e := child.Err(); e != Canceled {
-			t.Errorf("child.Err() == %v want %v", e, Canceled)
-		}
-
-		// parent should not be finished.
-		select {
-		case x := <-parent.Done():
-			t.Errorf("<-parent.Done() == %v want nothing (it should block)", x)
-		default:
-		}
-		if e := parent.Err(); e != nil {
-			t.Errorf("parent.Err() == %v want nil", e)
-		}
-	}
-}
-
-func testDeadline(c Context, wait time.Duration, t *testing.T) {
-	select {
-	case <-time.After(wait):
-		t.Fatalf("context should have timed out")
-	case <-c.Done():
-	}
-	if e := c.Err(); e != DeadlineExceeded {
-		t.Errorf("c.Err() == %v want %v", e, DeadlineExceeded)
-	}
-}
-
-func TestDeadline(t *testing.T) {
-	t.Parallel()
-	const timeUnit = 500 * time.Millisecond
-	c, _ := WithDeadline(Background(), time.Now().Add(1*timeUnit))
-	if got, prefix := fmt.Sprint(c), "context.Background.WithDeadline("; !strings.HasPrefix(got, prefix) {
-		t.Errorf("c.String() = %q want prefix %q", got, prefix)
-	}
-	testDeadline(c, 2*timeUnit, t)
-
-	c, _ = WithDeadline(Background(), time.Now().Add(1*timeUnit))
-	o := otherContext{c}
-	testDeadline(o, 2*timeUnit, t)
-
-	c, _ = WithDeadline(Background(), time.Now().Add(1*timeUnit))
-	o = otherContext{c}
-	c, _ = WithDeadline(o, time.Now().Add(3*timeUnit))
-	testDeadline(c, 2*timeUnit, t)
-}
-
-func TestTimeout(t *testing.T) {
-	t.Parallel()
-	const timeUnit = 500 * time.Millisecond
-	c, _ := WithTimeout(Background(), 1*timeUnit)
-	if got, prefix := fmt.Sprint(c), "context.Background.WithDeadline("; !strings.HasPrefix(got, prefix) {
-		t.Errorf("c.String() = %q want prefix %q", got, prefix)
-	}
-	testDeadline(c, 2*timeUnit, t)
-
-	c, _ = WithTimeout(Background(), 1*timeUnit)
-	o := otherContext{c}
-	testDeadline(o, 2*timeUnit, t)
-
-	c, _ = WithTimeout(Background(), 1*timeUnit)
-	o = otherContext{c}
-	c, _ = WithTimeout(o, 3*timeUnit)
-	testDeadline(c, 2*timeUnit, t)
-}
-
-func TestCanceledTimeout(t *testing.T) {
-	t.Parallel()
-	const timeUnit = 500 * time.Millisecond
-	c, _ := WithTimeout(Background(), 2*timeUnit)
-	o := otherContext{c}
-	c, cancel := WithTimeout(o, 4*timeUnit)
-	cancel()
-	time.Sleep(1 * timeUnit) // let cancelation propagate
-	select {
-	case <-c.Done():
-	default:
-		t.Errorf("<-c.Done() blocked, but shouldn't have")
-	}
-	if e := c.Err(); e != Canceled {
-		t.Errorf("c.Err() == %v want %v", e, Canceled)
-	}
-}
-
-type key1 int
-type key2 int
-
-var k1 = key1(1)
-var k2 = key2(1) // same int as k1, different type
-var k3 = key2(3) // same type as k2, different int
-
-func TestValues(t *testing.T) {
-	check := func(c Context, nm, v1, v2, v3 string) {
-		if v, ok := c.Value(k1).(string); ok == (len(v1) == 0) || v != v1 {
-			t.Errorf(`%s.Value(k1).(string) = %q, %t want %q, %t`, nm, v, ok, v1, len(v1) != 0)
-		}
-		if v, ok := c.Value(k2).(string); ok == (len(v2) == 0) || v != v2 {
-			t.Errorf(`%s.Value(k2).(string) = %q, %t want %q, %t`, nm, v, ok, v2, len(v2) != 0)
-		}
-		if v, ok := c.Value(k3).(string); ok == (len(v3) == 0) || v != v3 {
-			t.Errorf(`%s.Value(k3).(string) = %q, %t want %q, %t`, nm, v, ok, v3, len(v3) != 0)
-		}
-	}
-
-	c0 := Background()
-	check(c0, "c0", "", "", "")
-
-	c1 := WithValue(Background(), k1, "c1k1")
-	check(c1, "c1", "c1k1", "", "")
-
-	if got, want := fmt.Sprint(c1), `context.Background.WithValue(1, "c1k1")`; got != want {
-		t.Errorf("c.String() = %q want %q", got, want)
-	}
-
-	c2 := WithValue(c1, k2, "c2k2")
-	check(c2, "c2", "c1k1", "c2k2", "")
-
-	c3 := WithValue(c2, k3, "c3k3")
-	check(c3, "c2", "c1k1", "c2k2", "c3k3")
-
-	c4 := WithValue(c3, k1, nil)
-	check(c4, "c4", "", "c2k2", "c3k3")
-
-	o0 := otherContext{Background()}
-	check(o0, "o0", "", "", "")
-
-	o1 := otherContext{WithValue(Background(), k1, "c1k1")}
-	check(o1, "o1", "c1k1", "", "")
-
-	o2 := WithValue(o1, k2, "o2k2")
-	check(o2, "o2", "c1k1", "o2k2", "")
-
-	o3 := otherContext{c4}
-	check(o3, "o3", "", "c2k2", "c3k3")
-
-	o4 := WithValue(o3, k3, nil)
-	check(o4, "o4", "", "c2k2", "")
-}
-
-func TestAllocs(t *testing.T) {
-	bg := Background()
-	for _, test := range []struct {
-		desc       string
-		f          func()
-		limit      float64
-		gccgoLimit float64
-	}{
-		{
-			desc:       "Background()",
-			f:          func() { Background() },
-			limit:      0,
-			gccgoLimit: 0,
-		},
-		{
-			desc: fmt.Sprintf("WithValue(bg, %v, nil)", k1),
-			f: func() {
-				c := WithValue(bg, k1, nil)
-				c.Value(k1)
-			},
-			limit:      3,
-			gccgoLimit: 3,
-		},
-		{
-			desc: "WithTimeout(bg, 15*time.Millisecond)",
-			f: func() {
-				c, _ := WithTimeout(bg, 15*time.Millisecond)
-				<-c.Done()
-			},
-			limit:      8,
-			gccgoLimit: 16,
-		},
-		{
-			desc: "WithCancel(bg)",
-			f: func() {
-				c, cancel := WithCancel(bg)
-				cancel()
-				<-c.Done()
-			},
-			limit:      5,
-			gccgoLimit: 8,
-		},
-		{
-			desc: "WithTimeout(bg, 100*time.Millisecond)",
-			f: func() {
-				c, cancel := WithTimeout(bg, 100*time.Millisecond)
-				cancel()
-				<-c.Done()
-			},
-			limit:      8,
-			gccgoLimit: 25,
-		},
-	} {
-		limit := test.limit
-		if runtime.Compiler == "gccgo" {
-			// gccgo does not yet do escape analysis.
-			// TODO(iant): Remove this when gccgo does do escape analysis.
-			limit = test.gccgoLimit
-		}
-		if n := testing.AllocsPerRun(100, test.f); n > limit {
-			t.Errorf("%s allocs = %f want %d", test.desc, n, int(limit))
-		}
-	}
-}
-
-func TestSimultaneousCancels(t *testing.T) {
-	root, cancel := WithCancel(Background())
-	m := map[Context]CancelFunc{root: cancel}
-	q := []Context{root}
-	// Create a tree of contexts.
-	for len(q) != 0 && len(m) < 100 {
-		parent := q[0]
-		q = q[1:]
-		for i := 0; i < 4; i++ {
-			ctx, cancel := WithCancel(parent)
-			m[ctx] = cancel
-			q = append(q, ctx)
-		}
-	}
-	// Start all the cancels in a random order.
-	var wg sync.WaitGroup
-	wg.Add(len(m))
-	for _, cancel := range m {
-		go func(cancel CancelFunc) {
-			cancel()
-			wg.Done()
-		}(cancel)
-	}
-	// Wait on all the contexts in a random order.
-	for ctx := range m {
-		select {
-		case <-ctx.Done():
-		case <-time.After(1 * time.Second):
-			buf := make([]byte, 10<<10)
-			n := runtime.Stack(buf, true)
-			t.Fatalf("timed out waiting for <-ctx.Done(); stacks:\n%s", buf[:n])
-		}
-	}
-	// Wait for all the cancel functions to return.
-	done := make(chan struct{})
-	go func() {
-		wg.Wait()
-		close(done)
-	}()
-	select {
-	case <-done:
-	case <-time.After(1 * time.Second):
-		buf := make([]byte, 10<<10)
-		n := runtime.Stack(buf, true)
-		t.Fatalf("timed out waiting for cancel functions; stacks:\n%s", buf[:n])
-	}
-}
-
-func TestInterlockedCancels(t *testing.T) {
-	parent, cancelParent := WithCancel(Background())
-	child, cancelChild := WithCancel(parent)
-	go func() {
-		parent.Done()
-		cancelChild()
-	}()
-	cancelParent()
-	select {
-	case <-child.Done():
-	case <-time.After(1 * time.Second):
-		buf := make([]byte, 10<<10)
-		n := runtime.Stack(buf, true)
-		t.Fatalf("timed out waiting for child.Done(); stacks:\n%s", buf[:n])
-	}
-}
-
-func TestLayersCancel(t *testing.T) {
-	testLayers(t, time.Now().UnixNano(), false)
-}
-
-func TestLayersTimeout(t *testing.T) {
-	testLayers(t, time.Now().UnixNano(), true)
-}
-
-func testLayers(t *testing.T, seed int64, testTimeout bool) {
-	rand.Seed(seed)
-	errorf := func(format string, a ...interface{}) {
-		t.Errorf(fmt.Sprintf("seed=%d: %s", seed, format), a...)
-	}
-	const (
-		timeout   = 200 * time.Millisecond
-		minLayers = 30
-	)
-	type value int
-	var (
-		vals      []*value
-		cancels   []CancelFunc
-		numTimers int
-		ctx       = Background()
-	)
-	for i := 0; i < minLayers || numTimers == 0 || len(cancels) == 0 || len(vals) == 0; i++ {
-		switch rand.Intn(3) {
-		case 0:
-			v := new(value)
-			ctx = WithValue(ctx, v, v)
-			vals = append(vals, v)
-		case 1:
-			var cancel CancelFunc
-			ctx, cancel = WithCancel(ctx)
-			cancels = append(cancels, cancel)
-		case 2:
-			var cancel CancelFunc
-			ctx, cancel = WithTimeout(ctx, timeout)
-			cancels = append(cancels, cancel)
-			numTimers++
-		}
-	}
-	checkValues := func(when string) {
-		for _, key := range vals {
-			if val := ctx.Value(key).(*value); key != val {
-				errorf("%s: ctx.Value(%p) = %p want %p", when, key, val, key)
-			}
-		}
-	}
-	select {
-	case <-ctx.Done():
-		errorf("ctx should not be canceled yet")
-	default:
-	}
-	if s, prefix := fmt.Sprint(ctx), "context.Background."; !strings.HasPrefix(s, prefix) {
-		t.Errorf("ctx.String() = %q want prefix %q", s, prefix)
-	}
-	t.Log(ctx)
-	checkValues("before cancel")
-	if testTimeout {
-		select {
-		case <-ctx.Done():
-		case <-time.After(timeout + 100*time.Millisecond):
-			errorf("ctx should have timed out")
-		}
-		checkValues("after timeout")
-	} else {
-		cancel := cancels[rand.Intn(len(cancels))]
-		cancel()
-		select {
-		case <-ctx.Done():
-		default:
-			errorf("ctx should be canceled")
-		}
-		checkValues("after cancel")
-	}
-}
-
-func TestCancelRemoves(t *testing.T) {
-	checkChildren := func(when string, ctx Context, want int) {
-		if got := len(ctx.(*cancelCtx).children); got != want {
-			t.Errorf("%s: context has %d children, want %d", when, got, want)
-		}
-	}
-
-	ctx, _ := WithCancel(Background())
-	checkChildren("after creation", ctx, 0)
-	_, cancel := WithCancel(ctx)
-	checkChildren("with WithCancel child ", ctx, 1)
-	cancel()
-	checkChildren("after cancelling WithCancel child", ctx, 0)
-
-	ctx, _ = WithCancel(Background())
-	checkChildren("after creation", ctx, 0)
-	_, cancel = WithTimeout(ctx, 60*time.Minute)
-	checkChildren("with WithTimeout child ", ctx, 1)
-	cancel()
-	checkChildren("after cancelling WithTimeout child", ctx, 0)
-}

vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go

@@ -1,74 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.7
-
-// Package ctxhttp provides helper functions for performing context-aware HTTP requests.
-package ctxhttp // import "golang.org/x/net/context/ctxhttp"
-
-import (
-	"io"
-	"net/http"
-	"net/url"
-	"strings"
-
-	"golang.org/x/net/context"
-)
-
-// Do sends an HTTP request with the provided http.Client and returns
-// an HTTP response.
-//
-// If the client is nil, http.DefaultClient is used.
-//
-// The provided ctx must be non-nil. If it is canceled or times out,
-// ctx.Err() will be returned.
-func Do(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error) {
-	if client == nil {
-		client = http.DefaultClient
-	}
-	resp, err := client.Do(req.WithContext(ctx))
-	// If we got an error, and the context has been canceled,
-	// the context's error is probably more useful.
-	if err != nil {
-		select {
-		case <-ctx.Done():
-			err = ctx.Err()
-		default:
-		}
-	}
-	return resp, err
-}
-
-// Get issues a GET request via the Do function.
-func Get(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
-	req, err := http.NewRequest("GET", url, nil)
-	if err != nil {
-		return nil, err
-	}
-	return Do(ctx, client, req)
-}
-
-// Head issues a HEAD request via the Do function.
-func Head(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
-	req, err := http.NewRequest("HEAD", url, nil)
-	if err != nil {
-		return nil, err
-	}
-	return Do(ctx, client, req)
-}
-
-// Post issues a POST request via the Do function.
-func Post(ctx context.Context, client *http.Client, url string, bodyType string, body io.Reader) (*http.Response, error) {
-	req, err := http.NewRequest("POST", url, body)
-	if err != nil {
-		return nil, err
-	}
-	req.Header.Set("Content-Type", bodyType)
-	return Do(ctx, client, req)
-}
-
-// PostForm issues a POST request via the Do function.
-func PostForm(ctx context.Context, client *http.Client, url string, data url.Values) (*http.Response, error) {
-	return Post(ctx, client, url, "application/x-www-form-urlencoded", strings.NewReader(data.Encode()))
-}

vendor/golang.org/x/net/context/ctxhttp/ctxhttp_17_test.go

@@ -1,28 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !plan9,go1.7
-
-package ctxhttp
-
-import (
-	"io"
-	"net/http"
-	"net/http/httptest"
-	"testing"
-
-	"context"
-)
-
-func TestGo17Context(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		io.WriteString(w, "ok")
-	}))
-	ctx := context.Background()
-	resp, err := Get(ctx, http.DefaultClient, ts.URL)
-	if resp == nil || err != nil {
-		t.Fatalf("error received from client: %v %v", err, resp)
-	}
-	resp.Body.Close()
-}