improved tramp performance, file handling, security & auth settings

1 files changed, 87 insertions, 16 deletions

diff --git a/modules/tramp-config.el b/modules/tramp-config.el
index 27110689..8536a727 100644
--- a/modules/tramp-config.el
+++ b/modules/tramp-config.el
@@ -3,12 +3,15 @@
 
 ;;; Commentary:
 ;;
-;; TRAMP NOTES:
-;; note that you should disable your fancy prompt if connecting to the
-;; remote server from tramp.  Here's what to add to the top of the file
-
+;; TRAMP (Transparent Remote Access, Multiple Protocol)
+;;
+;; To handle fancy prompts on remote servers, add this to your shell configuration:
+;;
 ;; [[ $TERM == "dumb" ]] && PS1='$ ' && return
 ;; [[ $TERM == "tramp" ]] && PS1='$ ' && return
+;;
+;; For zsh users:
+;; [[ $TERM == "dumb" || $TERM == "tramp" ]] && unsetopt zle && PS1='$ ' && return
 
 ;;; Code:
 
@@ -16,37 +19,64 @@
   :defer .5
   :ensure nil ;; built-in
   :config
-  ;; uncomment for better debugging
+  ;; Debugging (uncomment when needed)
   ;; (setq tramp-debug-buffer t)
   ;; (setq tramp-verbose 10)
 
-   ;; terminal type reported by tramp to host
+  ;; Basic Settings
+  ;; Terminal type reported by tramp to host
   (setq tramp-terminal-type "dumb")
 
-  ;; use the path assigned to the remote user by the remote host
+  ;; Use the path assigned to the remote user by the remote host
   (add-to-list 'tramp-remote-path 'tramp-own-remote-path)
 
-  ;; store auto-save files locally.
+  ;; Also check for a ~/.ssh/config host entry
+  (tramp-set-completion-function "ssh"
+								 '((tramp-parse-sconfig "/etc/ssh/ssh_config")
+								   (tramp-parse-sconfig "~/.ssh/config")))
+
+  ;; File Handling
+  ;; Store auto-save files locally
   (setq tramp-auto-save-directory
 		(expand-file-name "tramp-auto-save" user-emacs-directory))
 
-  ;; turn off the backup "$filename~" feature for remote files
+  ;; Create directory if it doesn't exist
+  (unless (file-exists-p tramp-auto-save-directory)
+	(make-directory tramp-auto-save-directory t))
+
+  ;; Turn off the backup "$filename~" feature for remote files
   (setq remote-file-name-inhibit-auto-save-visited t)
   (add-to-list 'backup-directory-alist
 			   (cons tramp-file-name-regexp nil))
 
-  ;; set a more representative name for the persistency file.
+  ;; Performance Settings
+  ;; Set a more representative name for the persistency file
   (setq tramp-persistency-file-name
 		(expand-file-name "tramp-connection-history" user-emacs-directory))
 
-  (setq tramp-copy-size-limit nil) ;; always use external program to copy
-  (setq remote-file-name-inhibit-cache nil) ;; avoid cache invalidation
+  ;; Always use external program to copy (more efficient)
+  (setq tramp-copy-size-limit nil)
+
+  ;; Cache remote file attributes for better performance
+  (setq remote-file-name-inhibit-cache nil)
+
+  ;; Don't check for modified buffers before revert
+  ;; to avoid unnecessary remote operations
+  (setq revert-without-query '(".*"))
 
-  ;; cache and don't expire passwords
+  ;; Refresh buffers when needed rather than automatically
+  (setq auto-revert-remote-files nil)
+
+  ;; Security & Authentication
+  ;; Cache and don't expire passwords
   (setq password-cache t)
   (setq password-cache-expiry nil)
 
-  ;; set tramp-direct-async-process locally in all ssh connections
+  ;; Use SSH control connections for better performance
+  (setq tramp-use-ssh-controlmaster-options t)
+
+  ;; Connection Settings
+  ;; Set tramp-direct-async-process locally in all ssh connections
   (connection-local-set-profile-variables
    'remote-direct-async-process
    '((tramp-direct-async-process . t)))
@@ -57,8 +87,49 @@
    '(:application tramp :protocol "sshx")
    'remote-direct-async-process)
 
-  ;; don't determine remote files vc status (for a performance gain)
-  (setq vc-ignore-dir-regexp tramp-file-name-regexp))
+  ;; Set sane defaults for frequently used methods
+  (connection-local-set-profile-variables
+   'remote-bash
+   '((shell-file-name . "/bin/bash")
+	 (shell-command-switch . "-c")))
+  (connection-local-set-profiles
+   '(:application tramp)
+   'remote-bash)
+
+  ;; Don't determine remote files VC status (for a performance gain)
+  (setq vc-ignore-dir-regexp (concat vc-ignore-dir-regexp "\\|" tramp-file-name-regexp))
+
+  ;; Method-specific settings
+  ;; Default transfer method (use scp for most efficient transfer)
+  (setq tramp-default-method "scp")
+
+  ;; Use different methods based on host/domain patterns
+  (add-to-list 'tramp-methods
+			   '("sshfast"
+				 (tramp-login-program "ssh")
+				 (tramp-login-args (("-l" "%u") ("-p" "%p") ("%c")
+									("-e" "none") ("-t" "-t") ("%h")))
+				 (tramp-async-args (("-q")))
+				 (tramp-remote-shell "/bin/sh")
+				 (tramp-remote-shell-login ("-l"))
+				 (tramp-remote-shell-args ("-c"))
+				 (tramp-connection-timeout 10)))
+
+  ;; Remote shell and project settings
+  ;; Support for Docker containers
+  (add-to-list 'tramp-remote-path 'tramp-own-remote-path)
+  (add-to-list 'tramp-remote-path "/usr/local/bin")
+  (add-to-list 'tramp-remote-path "/usr/local/sbin")
+
+  ;; Enable directory tracking (useful for eshell)
+  (setq dirtrack-list '("^.*?\\([a-zA-Z]:.*\\|/.*\\)" 1))
+
+  ;; Avoid problems with Git on TRAMP
+  (setq magit-git-executable "/usr/bin/git")
+
+  ;; Cleanup settings
+  ;; Cleanup TRAMP buffers when idle (every 15 min)
+  (setq tramp-cleanup-idle-time 900))
 
 (provide 'tramp-config)
 ;;; tramp-config.el ends here