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bug#10602: Visiting archives changes directory time
From: |
Juri Linkov |
Subject: |
bug#10602: Visiting archives changes directory time |
Date: |
Wed, 25 Jan 2012 22:03:52 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.92 (x86_64-pc-linux-gnu) |
Using archive-mode or tar-mode to visit archives touches
directory modification dates. This is especially annoying
when archives are located in backup directories. The problem
is in the function `insert' that temporarily modifies the
archive summary buffer causing lock-file to create a lock file
in the current directory that modifies the directory timestamp.
A similar bug#2295 was fixed by let-binding `buffer-file-truename'
to nil to prevent directory time modification in `lock_file'.
This is not a regression, so I propose to install in 24.2 something like
=== modified file 'lisp/arc-mode.el'
--- lisp/arc-mode.el 2012-01-19 07:21:25 +0000
+++ lisp/arc-mode.el 2012-01-25 19:54:01 +0000
@@ -783,7 +784,8 @@ (defun archive-summarize (&optional shut
Optional argument SHUT-UP, if non-nil, means don't print messages
when parsing the archive."
(widen)
- (let ((inhibit-read-only t))
+ (let ((buffer-file-truename nil) ; avoid changing dir mtime by lock_file
+ (inhibit-read-only t))
(setq archive-proper-file-start (copy-marker (point-min) t))
(set (make-local-variable 'change-major-mode-hook) 'archive-desummarize)
(or shut-up
=== modified file 'lisp/tar-mode.el'
--- lisp/tar-mode.el 2012-01-19 07:21:25 +0000
+++ lisp/tar-mode.el 2012-01-25 19:54:01 +0000
@@ -520,12 +520,13 @@ (defun tar-summarize-buffer ()
(progress-reporter-done progress-reporter)
(message "Warning: premature EOF parsing tar file"))
(goto-char (point-min))
- (let ((inhibit-read-only t)
+ (let ((buffer-file-truename nil) ; avoid changing dir mtime by lock_file
+ (inhibit-read-only t)
(total-summaries
(mapconcat 'tar-header-block-summarize tar-parse-info "\n")))
- (insert total-summaries "\n"))
+ (insert total-summaries "\n")
(goto-char (point-min))
- (restore-buffer-modified-p modified)))
+ (restore-buffer-modified-p modified))))
(defvar tar-mode-map
(let ((map (make-keymap)))
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