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-rw-r--r--lisp/ChangeLog24
-rw-r--r--lisp/autorevert.el22
-rw-r--r--lisp/filenotify.el40
-rw-r--r--lisp/net/tramp-adb.el3
-rw-r--r--lisp/net/tramp-gvfs.el3
-rw-r--r--lisp/net/tramp-sh.el10
-rw-r--r--lisp/net/tramp-smb.el3
-rw-r--r--lisp/net/tramp.el4
8 files changed, 80 insertions, 29 deletions
diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 25fd3e6171e..fc38ef046a4 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,27 @@
+2013-07-18 Michael Albinus <michael.albinus@gmx.de>
+
+ * filenotify.el (file-notify--library): Renamed from
+ `file-notify-support'. Do not autoload. Adapt all uses.
+ (file-notify-supported-p): New defun.
+
+ * autorevert.el (auto-revert-use-notify): Use
+ `file-notify-supported-p' instead of `file-notify-support'. Adapt
+ docstring.
+ (auto-revert-notify-add-watch): Use `file-notify-supported-p'.
+
+ * net/tramp.el (tramp-file-name-for-operation):
+ Add `file-notify-supported-p'.
+
+ * net/tramp-sh.el (tramp-sh-handle-file-notify-supported-p):
+ New defun.
+ (tramp-sh-file-name-handler-alist): Add it as handler for
+ `file-notify-supported-p '.
+
+ * net/tramp-adb.el (tramp-adb-file-name-handler-alist):
+ * net/tramp-gvfs.el (tramp-gvfs-file-name-handler-alist):
+ * net/tramp-smb.el (tramp-smb-file-name-handler-alist):
+ Add `ignore' as handler for `file-notify-*' functions.
+
2013-07-17 Eli Zaretskii <eliz@gnu.org>
* simple.el (line-move-partial, line-move): Don't start vscroll or
diff --git a/lisp/autorevert.el b/lisp/autorevert.el
index 00e88fc4a3d..5c593e2ef71 100644
--- a/lisp/autorevert.el
+++ b/lisp/autorevert.el
@@ -271,21 +271,20 @@ This variable becomes buffer local when set in any fashion.")
:type 'boolean
:version "24.4")
-(defcustom auto-revert-use-notify (and file-notify-support t)
+(defcustom auto-revert-use-notify
+ ;; We use the support of the local filesystem as default.
+ (file-notify-supported-p temporary-file-directory)
"If non-nil Auto Revert Mode uses file notification functions.
-This requires Emacs being compiled with file notification
-support (see `file-notify-support'). You should set this variable
-through Custom."
+You should set this variable through Custom."
:group 'auto-revert
:type 'boolean
:set (lambda (variable value)
- (set-default variable (and file-notify-support value))
+ (set-default variable value)
(unless (symbol-value variable)
- (when file-notify-support
- (dolist (buf (buffer-list))
- (with-current-buffer buf
- (when (symbol-value 'auto-revert-notify-watch-descriptor)
- (auto-revert-notify-rm-watch)))))))
+ (dolist (buf (buffer-list))
+ (with-current-buffer buf
+ (when (symbol-value 'auto-revert-notify-watch-descriptor)
+ (auto-revert-notify-rm-watch))))))
:initialize 'custom-initialize-default
:version "24.4")
@@ -513,7 +512,8 @@ will use an up-to-date value of `auto-revert-interval'"
(set (make-local-variable 'auto-revert-use-notify) nil))
(when (and buffer-file-name auto-revert-use-notify
- (not auto-revert-notify-watch-descriptor))
+ (not auto-revert-notify-watch-descriptor)
+ (file-notify-supported-p buffer-file-name))
(setq auto-revert-notify-watch-descriptor
(ignore-errors
(file-notify-add-watch
diff --git a/lisp/filenotify.el b/lisp/filenotify.el
index e170db2dd5f..c9a7e106faa 100644
--- a/lisp/filenotify.el
+++ b/lisp/filenotify.el
@@ -27,8 +27,7 @@
;;; Code:
-;;;###autoload
-(defconst file-notify-support
+(defconst file-notify--library
(cond
((featurep 'gfilenotify) 'gfilenotify)
((featurep 'inotify) 'inotify)
@@ -191,6 +190,17 @@ car of that event, which is the symbol `file-notify'."
(funcall callback (list desc action file file1))
(funcall callback (list desc action file)))))))
+(defun file-notify-supported-p (file)
+ "Returns non-nil if filesystem pertaining to FILE could be watched."
+ (unless (stringp file)
+ (signal 'wrong-type-argument (list file)))
+ (setq file (expand-file-name file))
+
+ (let ((handler (find-file-name-handler file 'file-notify-supported-p)))
+ (if handler
+ (funcall handler 'file-notify-supported-p file)
+ (and file-notify--library t))))
+
(defun file-notify-add-watch (file flags callback)
"Add a watch for filesystem events pertaining to FILE.
This arranges for filesystem events pertaining to FILE to be reported
@@ -238,7 +248,7 @@ FILE is the name of the file whose event is being reported."
(let* ((handler (find-file-name-handler file 'file-notify-add-watch))
(dir (directory-file-name
- (if (or (and (not handler) (eq file-notify-support 'w32notify))
+ (if (or (and (not handler) (eq file-notify--library 'w32notify))
(file-directory-p file))
file
(file-name-directory file))))
@@ -259,32 +269,32 @@ FILE is the name of the file whose event is being reported."
;; Check, whether Emacs has been compiled with file
;; notification support.
- (unless file-notify-support
+ (unless file-notify--library
(signal 'file-notify-error
'("No file notification package available")))
;; Determine low-level function to be called.
(setq func (cond
- ((eq file-notify-support 'gfilenotify) 'gfile-add-watch)
- ((eq file-notify-support 'inotify) 'inotify-add-watch)
- ((eq file-notify-support 'w32notify) 'w32notify-add-watch)))
+ ((eq file-notify--library 'gfilenotify) 'gfile-add-watch)
+ ((eq file-notify--library 'inotify) 'inotify-add-watch)
+ ((eq file-notify--library 'w32notify) 'w32notify-add-watch)))
;; Determine respective flags.
- (if (eq file-notify-support 'gfilenotify)
+ (if (eq file-notify--library 'gfilenotify)
(setq l-flags '(watch-mounts send-moved))
(when (memq 'change flags)
(setq
l-flags
(cond
- ((eq file-notify-support 'inotify) '(create modify move delete))
- ((eq file-notify-support 'w32notify)
+ ((eq file-notify--library 'inotify) '(create modify move delete))
+ ((eq file-notify--library 'w32notify)
'(file-name directory-name size last-write-time)))))
(when (memq 'attribute-change flags)
(add-to-list
'l-flags
(cond
- ((eq file-notify-support 'inotify) 'attrib)
- ((eq file-notify-support 'w32notify) 'attributes)))))
+ ((eq file-notify--library 'inotify) 'attrib)
+ ((eq file-notify--library 'w32notify) 'attributes)))))
;; Call low-level function.
(setq desc (funcall func dir l-flags 'file-notify-callback))))
@@ -311,9 +321,9 @@ DESCRIPTOR should be an object returned by `file-notify-add-watch'."
(funcall handler 'file-notify-rm-watch descriptor)
(funcall
(cond
- ((eq file-notify-support 'gfilenotify) 'gfile-rm-watch)
- ((eq file-notify-support 'inotify) 'inotify-rm-watch)
- ((eq file-notify-support 'w32notify) 'w32notify-rm-watch))
+ ((eq file-notify--library 'gfilenotify) 'gfile-rm-watch)
+ ((eq file-notify--library 'inotify) 'inotify-rm-watch)
+ ((eq file-notify--library 'w32notify) 'w32notify-rm-watch))
descriptor)))
(remhash descriptor file-notify-descriptors)))
diff --git a/lisp/net/tramp-adb.el b/lisp/net/tramp-adb.el
index 14fb8575fff..56c0ee2dc2d 100644
--- a/lisp/net/tramp-adb.el
+++ b/lisp/net/tramp-adb.el
@@ -108,6 +108,9 @@
(file-writable-p . tramp-adb-handle-file-writable-p)
(file-local-copy . tramp-adb-handle-file-local-copy)
(file-modes . tramp-handle-file-modes)
+ (file-notify-add-watch . ignore)
+ (file-notify-rm-watch . ignore)
+ (file-notify-supported-p . ignore)
(expand-file-name . tramp-adb-handle-expand-file-name)
(find-backup-file-name . tramp-handle-find-backup-file-name)
(directory-files . tramp-handle-directory-files)
diff --git a/lisp/net/tramp-gvfs.el b/lisp/net/tramp-gvfs.el
index c2fdc0491b6..526408140c2 100644
--- a/lisp/net/tramp-gvfs.el
+++ b/lisp/net/tramp-gvfs.el
@@ -435,6 +435,9 @@ Every entry is a list (NAME ADDRESS).")
(file-name-nondirectory . tramp-handle-file-name-nondirectory)
;; `file-name-sans-versions' performed by default handler.
(file-newer-than-file-p . tramp-handle-file-newer-than-file-p)
+ (file-notify-add-watch . ignore)
+ (file-notify-rm-watch . ignore)
+ (file-notify-supported-p . ignore)
(file-ownership-preserved-p . ignore)
(file-readable-p . tramp-gvfs-handle-file-readable-p)
(file-regular-p . tramp-handle-file-regular-p)
diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index c92eacd4473..d2fc1b9979e 100644
--- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -867,7 +867,8 @@ of command line.")
(set-file-acl . tramp-sh-handle-set-file-acl)
(vc-registered . tramp-sh-handle-vc-registered)
(file-notify-add-watch . tramp-sh-handle-file-notify-add-watch)
- (file-notify-rm-watch . tramp-sh-handle-file-notify-rm-watch))
+ (file-notify-rm-watch . tramp-sh-handle-file-notify-rm-watch)
+ (file-notify-supported-p . tramp-sh-handle-file-notify-supported-p))
"Alist of handler functions.
Operations not mentioned here will be handled by the normal Emacs functions.")
@@ -3498,6 +3499,13 @@ Fall back to normal file name handler if no Tramp handler exists."
(tramp-message proc 6 (format "Kill %S" proc))
(kill-process proc))
+(defun tramp-sh-handle-file-notify-supported-p (file-name)
+ "Like `file-notify-supported-p' for Tramp files."
+ (with-parsed-tramp-file-name (expand-file-name file-name) nil
+ (and (or (tramp-get-remote-gvfs-monitor-dir v)
+ (tramp-get-remote-inotifywait v))
+ t)))
+
;;; Internal Functions:
(defun tramp-maybe-send-script (vec script name)
diff --git a/lisp/net/tramp-smb.el b/lisp/net/tramp-smb.el
index 65c52ae4f3c..d9bb5057e7a 100644
--- a/lisp/net/tramp-smb.el
+++ b/lisp/net/tramp-smb.el
@@ -209,6 +209,9 @@ See `tramp-actions-before-shell' for more info.")
(file-name-nondirectory . tramp-handle-file-name-nondirectory)
;; `file-name-sans-versions' performed by default handler.
(file-newer-than-file-p . tramp-handle-file-newer-than-file-p)
+ (file-notify-add-watch . ignore)
+ (file-notify-rm-watch . ignore)
+ (file-notify-supported-p . ignore)
(file-ownership-preserved-p . ignore)
(file-readable-p . tramp-handle-file-exists-p)
(file-regular-p . tramp-handle-file-regular-p)
diff --git a/lisp/net/tramp.el b/lisp/net/tramp.el
index 3513701d20e..fd5435bd3d4 100644
--- a/lisp/net/tramp.el
+++ b/lisp/net/tramp.el
@@ -1980,8 +1980,8 @@ ARGS are the arguments OPERATION has been called with."
;; Emacs 22+ only.
'set-file-times
;; Emacs 24+ only.
- 'file-acl 'file-notify-add-watch 'file-selinux-context
- 'set-file-acl 'set-file-selinux-context
+ 'file-acl 'file-notify-add-watch 'file-notify-supported-p
+ 'file-selinux-context 'set-file-acl 'set-file-selinux-context
;; XEmacs only.
'abbreviate-file-name 'create-file-buffer
'dired-file-modtime 'dired-make-compressed-filename