+(defun tramp-handle-shell-command
+ (command &optional output-buffer error-buffer)
+ "Like `shell-command' for Tramp files."
+ (let* ((asynchronous (string-match "[ \t]*&[ \t]*\\'" command))
+ ;; We cannot use `shell-file-name' and `shell-command-switch',
+ ;; they are variables of the local host.
+ (args (append
+ (cons
+ (tramp-get-method-parameter
+ (tramp-file-name-method
+ (tramp-dissect-file-name default-directory))
+ 'tramp-remote-shell)
+ (tramp-get-method-parameter
+ (tramp-file-name-method
+ (tramp-dissect-file-name default-directory))
+ 'tramp-remote-shell-args))
+ (list (substring command 0 asynchronous))))
+ current-buffer-p
+ (output-buffer
+ (cond
+ ((bufferp output-buffer) output-buffer)
+ ((stringp output-buffer) (get-buffer-create output-buffer))
+ (output-buffer
+ (setq current-buffer-p t)
+ (current-buffer))
+ (t (get-buffer-create
+ (if asynchronous
+ "*Async Shell Command*"
+ "*Shell Command Output*")))))
+ (error-buffer
+ (cond
+ ((bufferp error-buffer) error-buffer)
+ ((stringp error-buffer) (get-buffer-create error-buffer))))
+ (buffer
+ (if (and (not asynchronous) error-buffer)
+ (with-parsed-tramp-file-name default-directory nil
+ (list output-buffer (tramp-make-tramp-temp-file v)))
+ output-buffer))
+ (p (get-buffer-process output-buffer)))
+
+ ;; Check whether there is another process running. Tramp does not
+ ;; support 2 (asynchronous) processes in parallel.
+ (when p
+ (if (yes-or-no-p "A command is running. Kill it? ")
+ (ignore-errors (kill-process p))
+ (error "Shell command in progress")))
+
+ (if current-buffer-p
+ (progn
+ (barf-if-buffer-read-only)
+ (push-mark nil t))
+ (with-current-buffer output-buffer
+ (setq buffer-read-only nil)
+ (erase-buffer)))
+
+ (if (and (not current-buffer-p) (integerp asynchronous))
+ (prog1
+ ;; Run the process.
+ (setq p (apply 'start-file-process "*Async Shell*" buffer args))
+ ;; Display output.
+ (pop-to-buffer output-buffer)
+ (setq mode-line-process '(":%s"))
+ (shell-mode)
+ (set-process-sentinel p 'shell-command-sentinel)
+ (set-process-filter p 'comint-output-filter))
+
+ (prog1
+ ;; Run the process.
+ (apply 'process-file (car args) nil buffer nil (cdr args))
+ ;; Insert error messages if they were separated.
+ (when (listp buffer)
+ (with-current-buffer error-buffer
+ (insert-file-contents (cadr buffer)))
+ (delete-file (cadr buffer)))
+ (if current-buffer-p
+ ;; This is like exchange-point-and-mark, but doesn't
+ ;; activate the mark. It is cleaner to avoid activation,
+ ;; even though the command loop would deactivate the mark
+ ;; because we inserted text.
+ (goto-char (prog1 (mark t)
+ (set-marker (mark-marker) (point)
+ (current-buffer))))
+ ;; There's some output, display it.
+ (when (with-current-buffer output-buffer (> (point-max) (point-min)))
+ (if (functionp 'display-message-or-buffer)
+ (tramp-compat-funcall 'display-message-or-buffer output-buffer)
+ (pop-to-buffer output-buffer))))))))
+