Function: tramp-smb-handle-set-file-acl

tramp-smb-handle-set-file-acl is a byte-compiled function defined in tramp-smb.el.gz.

Signature

(tramp-smb-handle-set-file-acl FILENAME ACL-STRING)

Documentation

Like set-file-acl for Tramp files.

Source Code

;; Defined in /usr/src/emacs/lisp/net/tramp-smb.el.gz
(defun tramp-smb-handle-set-file-acl (filename acl-string)
  "Like `set-file-acl' for Tramp files."
  (ignore-errors
    (with-parsed-tramp-file-name filename nil
      (tramp-flush-file-property v localname "file-acl")

      (when (and (stringp acl-string) (tramp-smb-remote-acl-p v))
	(let* ((share     (tramp-smb-get-share v))
	       (localname (tramp-compat-string-replace
			   "\\" "/" (tramp-smb-get-localname v)))
	       (args      (list (concat "//" host "/" share) "-E" "-S"
				(tramp-compat-string-replace
				 "\n" "," acl-string)))
	       (options   tramp-smb-options))

	  (if (tramp-string-empty-or-nil-p user)
	      (setq args (append args (list "-N")))
	    (setq args (append args (list "-U" user))))

	  (when domain (setq args (append args (list "-W" domain))))
	  (when port   (setq args (append args (list "-p" port))))
	  (when tramp-smb-conf
	    (setq args (append args (list "-s" tramp-smb-conf))))
	  (while options
	    (setq args
		  (append args `("--option" ,(format "%s" (car options))))
		  options (cdr options)))
	  (setq
	   args
	   (append args (list (tramp-unquote-shell-quote-argument localname)
			      "&&" "echo" "tramp_exit_status" "0"
			      "||" "echo" "tramp_exit_status" "1")))

	  (with-tramp-saved-connection-properties
	      v '("process-name" "process-buffer")
	    (with-temp-buffer
	      ;; Set the transfer process properties.
	      (tramp-set-connection-property
	       v "process-name" (buffer-name (current-buffer)))
	      (tramp-set-connection-property
	       v "process-buffer" (current-buffer))

	      ;; Use an asynchronous process.  By this, password
	      ;; can be handled.
	      (let ((p (apply
			#'start-process
			(tramp-get-connection-name v)
			(tramp-get-connection-buffer v)
			tramp-smb-acl-program args)))
		(tramp-post-process-creation p v)
		(tramp-process-actions p v nil tramp-smb-actions-set-acl)
		;; This is meant for traces, and returning from
		;; the function.  No error is propagated outside,
		;; due to the `ignore-errors' closure.
		(unless
		    (tramp-search-regexp (rx "tramp_exit_status " (+ digit)))
		  (tramp-error
		   v 'file-error
		   "Couldn't find exit status of `%s'"
		   tramp-smb-acl-program))
		(skip-chars-forward "^ ")
		(when (zerop (read (current-buffer)))
		  ;; Success.
		  (tramp-set-file-property v localname "file-acl" acl-string)
		  t)))))))))