Removed unecessary Option<&ConfigClient> in filetransfer; use degraded mode instead

src/system/sshkey_storage.rs

@@ -67,6 +67,7 @@ impl SshKeyStorage {
     /// ### empty
     ///
     /// Create an empty ssh key storage; used in case `ConfigClient` is not available
+    #[cfg(test)]
     pub fn empty() -> Self {
         SshKeyStorage {
             hosts: HashMap::new(),

src/ui/activities/filetransfer/lib/browser.rs

@@ -55,7 +55,7 @@ impl Browser {
     /// ### new
     ///
     /// Build a new `Browser` struct
-    pub fn new(cli: Option<&ConfigClient>) -> Self {
+    pub fn new(cli: &ConfigClient) -> Self {
         Self {
             local: Self::build_local_explorer(cli),
             remote: Self::build_remote_explorer(cli),
@@ -120,45 +120,32 @@ impl Browser {
     /// ### build_local_explorer
     ///
     /// Build a file explorer with local host setup
-    pub fn build_local_explorer(cli: Option<&ConfigClient>) -> FileExplorer {
+    pub fn build_local_explorer(cli: &ConfigClient) -> FileExplorer {
         let mut builder = Self::build_explorer(cli);
-        if let Some(cli) = cli {
-            builder.with_formatter(cli.get_local_file_fmt().as_deref());
-        }
+        builder.with_formatter(cli.get_local_file_fmt().as_deref());
         builder.build()
     }
 
     /// ### build_remote_explorer
     ///
     /// Build a file explorer with remote host setup
-    pub fn build_remote_explorer(cli: Option<&ConfigClient>) -> FileExplorer {
+    pub fn build_remote_explorer(cli: &ConfigClient) -> FileExplorer {
         let mut builder = Self::build_explorer(cli);
-        if let Some(cli) = cli {
-            builder.with_formatter(cli.get_remote_file_fmt().as_deref());
-        }
+        builder.with_formatter(cli.get_remote_file_fmt().as_deref());
         builder.build()
     }
 
     /// ### build_explorer
     ///
     /// Build explorer reading configuration from `ConfigClient`
-    fn build_explorer(cli: Option<&ConfigClient>) -> FileExplorerBuilder {
+    fn build_explorer(cli: &ConfigClient) -> FileExplorerBuilder {
         let mut builder: FileExplorerBuilder = FileExplorerBuilder::new();
         // Set common keys
         builder
             .with_file_sorting(FileSorting::ByName)
-            .with_stack_size(16);
-        match &cli {
-            Some(cli) => {
-                builder // Build according to current configuration
-                    .with_group_dirs(cli.get_group_dirs())
-                    .with_hidden_files(cli.get_show_hidden_files());
-            }
-            None => {
-                builder // Build default
-                    .with_group_dirs(Some(GroupDirs::First));
-            }
-        };
+            .with_stack_size(16)
+            .with_group_dirs(cli.get_group_dirs())
+            .with_hidden_files(cli.get_show_hidden_files());
         builder
     }
 

src/ui/activities/filetransfer/misc.rs

@@ -71,7 +71,7 @@ impl FileTransferActivity {
     ///
     /// Initialize configuration client if possible.
     /// This function doesn't return errors.
-    pub(super) fn init_config_client() -> Option<ConfigClient> {
+    pub(super) fn init_config_client() -> ConfigClient {
         match environment::init_config_dir() {
             Ok(termscp_dir) => match termscp_dir {
                 Some(termscp_dir) => {
@@ -79,24 +79,21 @@ impl FileTransferActivity {
                     let (config_path, ssh_keys_path): (PathBuf, PathBuf) =
                         environment::get_config_paths(termscp_dir.as_path());
                     match ConfigClient::new(config_path.as_path(), ssh_keys_path.as_path()) {
-                        Ok(config_client) => Some(config_client),
-                        Err(_) => None,
+                        Ok(config_client) => config_client,
+                        Err(_) => ConfigClient::degraded(),
                     }
                 }
-                None => None,
+                None => ConfigClient::degraded(),
             },
-            Err(_) => None,
+            Err(_) => ConfigClient::degraded(),
         }
     }
 
     /// ### make_ssh_storage
     ///
-    /// Make ssh storage from `ConfigClient` if possible, empty otherwise
-    pub(super) fn make_ssh_storage(cli: Option<&ConfigClient>) -> SshKeyStorage {
-        match cli {
-            Some(cli) => SshKeyStorage::storage_from_config(cli),
-            None => SshKeyStorage::empty(),
-        }
+    /// Make ssh storage from `ConfigClient` if possible, empty otherwise (empty is implicit if degraded)
+    pub(super) fn make_ssh_storage(cli: &ConfigClient) -> SshKeyStorage {
+        SshKeyStorage::storage_from_config(cli)
     }
 
     /// ### setup_text_editor

src/ui/activities/filetransfer/mod.rs

@@ -141,7 +141,7 @@ impl FileTransferActivity {
     /// Instantiates a new FileTransferActivity
     pub fn new(host: Localhost, protocol: FileTransferProtocol) -> FileTransferActivity {
         // Get config client
-        let config_client: Option<ConfigClient> = Self::init_config_client();
+        let config_client: ConfigClient = Self::init_config_client();
         FileTransferActivity {
             exit_reason: None,
             context: None,
@@ -149,14 +149,14 @@ impl FileTransferActivity {
             host,
             client: match protocol {
                 FileTransferProtocol::Sftp => Box::new(SftpFileTransfer::new(
-                    Self::make_ssh_storage(config_client.as_ref()),
+                    Self::make_ssh_storage(&config_client),
                 )),
                 FileTransferProtocol::Ftp(ftps) => Box::new(FtpFileTransfer::new(ftps)),
-                FileTransferProtocol::Scp => Box::new(ScpFileTransfer::new(
-                    Self::make_ssh_storage(config_client.as_ref()),
-                )),
+                FileTransferProtocol::Scp => {
+                    Box::new(ScpFileTransfer::new(Self::make_ssh_storage(&config_client)))
+                }
             },
-            browser: Browser::new(config_client.as_ref()),
+            browser: Browser::new(&config_client),
             log_records: VecDeque::with_capacity(256), // 256 events is enough I guess
             transfer: TransferStates::default(),
             cache: match TempDir::new() {