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(locate-dominating-file): New function.

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Stefan Monnier 2007-07-19 03:29:47 +00:00
parent 6e3aa3f58e
commit 418fd37516
2 changed files with 23 additions and 0 deletions
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5
lisp/ChangeLog
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@ -1,3 +1,7 @@
2007-07-19 Stefan Monnier <monnier@iro.umontreal.ca>
* files.el (locate-dominating-file): New function.
2007-07-18 Michael Albinus <michael.albinus@gmx.de>
* progmodes/grep.el (grep-host-defaults-alist): New defvar.
@ -13,6 +17,7 @@
files. Change two keybindings to point to new function names.
2007-07-18 Juanma Barranquero <lekktu@gmail.com>
* follow.el (follow-mode-hook, follow-mode-off-hook, follow-mode)
(follow-delete-other-windows-and-split, follow-recenter)
(follow-windows-aligned-p, follow-point-visible-all-windows-p)

18
lisp/files.el
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@ -711,6 +711,24 @@ PATH-AND-SUFFIXES is a pair of lists, (DIRECTORIES . SUFFIXES)."
((null action) (try-completion string names))
(t (test-completion string names))))))
(defun locate-dominating-file (file regexp)
"Look up the directory hierarchy from FILE for a file matching REGEXP."
(while (and file (not (file-directory-p file)))
(setq file (file-name-directory (directory-file-name file))))
(catch 'found
(let ((user (nth 2 (file-attributes file)))
;; Abbreviate, so as to stop when we cross ~/.
(dir (abbreviate-file-name (file-name-as-directory file)))
files)
(while (and dir (equal user (nth 2 (file-attributes dir))))
(if (setq files (directory-files dir 'full regexp))
(throw 'found (car files))
(if (equal dir
(setq dir (file-name-directory
(directory-file-name dir))))
(setq dir nil))))
nil)))
(defun executable-find (command)
"Search for COMMAND in `exec-path' and return the absolute file name.
Return nil if COMMAND is not found anywhere in `exec-path'."