;;; tramp-cache.el --- file information caching for Tramp
-;; Copyright (C) 2000, 2005-2013 Free Software Foundation, Inc.
+;; Copyright (C) 2000, 2005-2015 Free Software Foundation, Inc.
;; Author: Daniel Pittman <daniel@inanna.danann.net>
;; Michael Albinus <michael.albinus@gmx.de>
;;
;; - localname is a string. This are temporary properties, which are
;; related to the file localname is referring to. Examples:
-;; "file-exists-p" is t or nile, depending on the file existence, or
+;; "file-exists-p" is t or nil, depending on the file existence, or
;; "file-attributes" caches the result of the function
-;; `file-attributes'.
+;; `file-attributes'. These entries have a timestamp, and they
+;; expire after `remote-file-name-inhibit-cache' seconds if this
+;; variable is set.
;;
;; - The key is a process. This are temporary properties related to
;; an open connection. Examples: "scripts" keeps shell script
(tramp-time-diff (current-time) (car value))
remote-file-name-inhibit-cache))
(and (consp remote-file-name-inhibit-cache)
- (tramp-time-less-p
+ (time-less-p
remote-file-name-inhibit-cache (car value)))))
(setq value (cdr value))
(setq value default))
(tramp-message key 8 "%s %s %s" file property value)
(when (>= tramp-verbose 10)
(let* ((var (intern (concat "tramp-cache-get-count-" property)))
- (val (or (ignore-errors (symbol-value var)) 0)))
+ (val (or (and (boundp var) (symbol-value var)) 0)))
(set var (1+ val))))
value))
(tramp-message key 8 "%s %s %s" file property value)
(when (>= tramp-verbose 10)
(let* ((var (intern (concat "tramp-cache-set-count-" property)))
- (val (or (ignore-errors (symbol-value var)) 0)))
+ (val (or (and (boundp var) (symbol-value var)) 0)))
(set var (1+ val))))
value))
;;;###tramp-autoload
(defun tramp-flush-file-property (key file)
"Remove all properties of FILE in the cache context of KEY."
- ;; Remove file property of symlinks.
+ ;; Remove file properties of symlinks.
(let ((truename (tramp-get-file-property key file "file-truename" nil)))
(when (and (stringp truename)
(not (string-equal file truename)))
(defun tramp-flush-directory-property (key directory)
"Remove all properties of DIRECTORY in the cache context of KEY.
Remove also properties of all files in subdirectories."
- (let ((directory (tramp-run-real-handler
- 'directory-file-name (list directory))))
+ (let* ((directory (tramp-run-real-handler
+ 'directory-file-name (list directory)))
+ (truename (tramp-get-file-property key directory "file-truename" nil)))
+ ;; Remove file properties of symlinks.
+ (when (and (stringp truename)
+ (not (string-equal directory truename)))
+ (tramp-flush-directory-property key truename))
(tramp-message key 8 "%s" directory)
(maphash
- (lambda (key value)
+ (lambda (key _value)
(when (and (stringp (tramp-file-name-localname key))
(string-match directory (tramp-file-name-localname key)))
(remhash key tramp-cache-data)))
;; Reverting or killing a buffer should also flush file properties.
;; They could have been changed outside Tramp. In eshell, "ls" would
;; not show proper directory contents when a file has been copied or
-;; deleted before.
+;; deleted before. We must apply `save-match-data', because it would
+;; corrupt other packages otherwise (reported from org).
(defun tramp-flush-file-function ()
- "Flush all Tramp cache properties from `buffer-file-name'."
- (let ((bfn (if (stringp (buffer-file-name))
- (buffer-file-name)
- default-directory)))
- (when (tramp-tramp-file-p bfn)
- (with-parsed-tramp-file-name bfn nil
- (tramp-flush-file-property v localname)))))
+ "Flush all Tramp cache properties from `buffer-file-name'.
+This is suppressed for temporary buffers."
+ (save-match-data
+ (unless (or (null (buffer-name))
+ (string-match "^\\( \\|\\*\\)" (buffer-name)))
+ (let ((bfn (if (stringp (buffer-file-name))
+ (buffer-file-name)
+ default-directory))
+ (tramp-verbose 0))
+ (when (tramp-tramp-file-p bfn)
+ (with-parsed-tramp-file-name bfn nil
+ (tramp-flush-file-property v localname)))))))
(add-hook 'before-revert-hook 'tramp-flush-file-function)
(add-hook 'eshell-pre-command-hook 'tramp-flush-file-function)
(let ((hash (gethash key tramp-cache-data))
properties)
(when (hash-table-p hash)
- (maphash (lambda (x y) (add-to-list 'properties x 'append)) hash))
+ (maphash (lambda (x _y) (add-to-list 'properties x 'append)) hash))
properties))
(setq tramp-cache-data-changed t)
(remhash key tramp-cache-data))
(let (result)
(maphash
(lambda (key value)
+ ;; Remove text properties from KEY and VALUE.
+ ;; `substring-no-properties' does not exist in XEmacs.
+ (when (functionp 'substring-no-properties)
+ (when (vectorp key)
+ (dotimes (i (length key))
+ (when (stringp (aref key i))
+ (aset key i
+ (tramp-compat-funcall
+ 'substring-no-properties (aref key i))))))
+ (when (stringp key)
+ (setq key (tramp-compat-funcall 'substring-no-properties key)))
+ (when (stringp value)
+ (setq value
+ (tramp-compat-funcall 'substring-no-properties value))))
+ ;; Dump.
(let ((tmp (format
"(%s %s)"
(if (processp key)
"Return a list of all known connection vectors according to `tramp-cache'."
(let (result)
(maphash
- (lambda (key value)
+ (lambda (key _value)
(when (and (vectorp key) (null (aref key 3)))
(add-to-list 'result key)))
tramp-cache-data)
for all methods. Resulting data are derived from connection history."
(let (res)
(maphash
- (lambda (key value)
+ (lambda (key _value)
(if (and (vectorp key)
(string-equal method (tramp-file-name-method key))
(not (tramp-file-name-localname key)))
(with-temp-buffer
(insert-file-contents tramp-persistency-file-name)
(let ((list (read (current-buffer)))
+ (tramp-verbose 0)
element key item)
(while (setq element (pop list))
(setq key (pop element))