Add Windows support: linker, oh-my-posh installer, README

- link-dotfiles.ps1: stow-equivalent for Windows using junctions/symlinks (no admin required), idempotent with .bak backups and -DryRun - lk-installers/install-ohmyposh.ps1: winget-based install with fallback - README.md: document Linux/macOS (stow) and Windows flows - .gitignore: resolve leftover merge conflict markers, ignore *.bak - ohmyposh/lkraven.toml: oh-my-posh v3 auto-migrated this on load (same theme, upgraded schema) Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-08 13:22:33 -07:00
parent 1b1a1d4bf9
commit 77a8d25488
5 changed files with 281 additions and 78 deletions
@@ -0,0 +1,105 @@
+#!/usr/bin/env pwsh
+<#
+.SYNOPSIS
+    Windows equivalent of ./link-dotfiles (the GNU stow script).
+
+.DESCRIPTION
+    stow can't run natively on Windows, so this mirrors what it does:
+      home_root/*    ->  ~\<name>           (e.g. ~\.zshrc)
+      home_config/*  ->  ~\.config\<name>   (e.g. ~\.config\ohmyposh)
+
+    Directories are linked with junctions and files with symlinks/hardlinks,
+    none of which need administrator rights (junctions and hardlinks never do;
+    symlinks are attempted first in case Developer Mode is on, then we fall
+    back). Re-running is safe: correct links are skipped, and any real file or
+    directory that would be clobbered is moved aside to <name>.bak first.
+
+.EXAMPLE
+    pwsh -File .\link-dotfiles.ps1
+#>
+[CmdletBinding()]
+param(
+    # Print what would happen without changing anything.
+    [switch]$DryRun
+)
+
+$ErrorActionPreference = 'Stop'
+$repo = $PSScriptRoot
+$home_ = $HOME
+
+# stow metadata files we must never link into the home tree.
+$skip = @('.stow-local-ignore', '.stow-global-ignore')
+
+function Get-LinkTarget {
+    param([string]$Path)
+    $item = Get-Item -LiteralPath $Path -Force -ErrorAction SilentlyContinue
+    if ($item -and $item.LinkType) { return $item.Target }
+    return $null
+}
+
+function Link-Item {
+    param(
+        [string]$Source,   # absolute path inside the repo
+        [string]$Dest      # absolute path under the home tree
+    )
+
+    $isDir = (Get-Item -LiteralPath $Source -Force).PSIsContainer
+
+    # Already linked to the right place? Nothing to do.
+    $existingTarget = Get-LinkTarget $Dest
+    if ($existingTarget -and ($existingTarget -ieq $Source)) {
+        Write-Host "  ok    $Dest" -ForegroundColor DarkGray
+        return
+    }
+
+    if (Test-Path -LiteralPath $Dest) {
+        if ($existingTarget) {
+            # A link, but pointing elsewhere -> replace it.
+            if ($DryRun) { Write-Host "  relink $Dest (was -> $existingTarget)" -ForegroundColor Yellow; return }
+            Remove-Item -LiteralPath $Dest -Force -Recurse
+        } else {
+            # A real file/dir -> back it up rather than destroy it.
+            $bak = "$Dest.bak"
+            Write-Host "  backup $Dest -> $bak" -ForegroundColor Yellow
+            if (-not $DryRun) { Move-Item -LiteralPath $Dest -Destination $bak -Force }
+        }
+    }
+
+    if ($DryRun) { Write-Host "  link  $Dest -> $Source" -ForegroundColor Cyan; return }
+
+    $parent = Split-Path $Dest -Parent
+    if (-not (Test-Path $parent)) { New-Item -ItemType Directory -Path $parent -Force | Out-Null }
+
+    if ($isDir) {
+        New-Item -ItemType Junction -Path $Dest -Target $Source | Out-Null
+        Write-Host "  junc  $Dest -> $Source" -ForegroundColor Green
+    } else {
+        # Prefer a real symlink (needs admin or Developer Mode); fall back to a
+        # hardlink (same volume, no admin); finally just copy.
+        try {
+            New-Item -ItemType SymbolicLink -Path $Dest -Target $Source -ErrorAction Stop | Out-Null
+            Write-Host "  link  $Dest -> $Source" -ForegroundColor Green
+        } catch {
+            try {
+                New-Item -ItemType HardLink -Path $Dest -Target $Source -ErrorAction Stop | Out-Null
+                Write-Host "  hard  $Dest -> $Source" -ForegroundColor Green
+            } catch {
+                Copy-Item -LiteralPath $Source -Destination $Dest -Force
+                Write-Host "  copy  $Dest (could not link; copied)" -ForegroundColor Magenta
+            }
+        }
+    }
+}
+
+Write-Host "home_root -> $home_"
+Get-ChildItem -LiteralPath (Join-Path $repo 'home_root') -Force |
+    Where-Object { $skip -notcontains $_.Name } |
+    ForEach-Object { Link-Item $_.FullName (Join-Path $home_ $_.Name) }
+
+$configDir = Join-Path $home_ '.config'
+Write-Host "home_config -> $configDir"
+Get-ChildItem -LiteralPath (Join-Path $repo 'home_config') -Force |
+    Where-Object { $skip -notcontains $_.Name } |
+    ForEach-Object { Link-Item $_.FullName (Join-Path $configDir $_.Name) }
+
+Write-Host "Done." -ForegroundColor Green