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-rw-r--r--lisp/vc/vc-hg.el47
1 files changed, 8 insertions, 39 deletions
diff --git a/lisp/vc/vc-hg.el b/lisp/vc/vc-hg.el
index f3ba009b8c2..52e8051342d 100644
--- a/lisp/vc/vc-hg.el
+++ b/lisp/vc/vc-hg.el
@@ -226,45 +226,14 @@ highlighting the Log View buffer."
(defun vc-hg-working-revision (file)
"Hg-specific version of `vc-working-revision'."
- (let*
- ((status nil)
- (default-directory (file-name-directory file))
- ;; Avoid localization of messages so we can parse the output.
- (avoid-local-env (append (list "TERM=dumb" "LANGUAGE=C")
- process-environment))
- (out
- (with-output-to-string
- (with-current-buffer
- standard-output
- (setq status
- (condition-case nil
- (let ((process-environment avoid-local-env))
- ;; Ignore all errors.
- (process-file
- vc-hg-program nil t nil
- "--config" "alias.parents=parents"
- "--config" "defaults.parents="
- "parents" "--template" "{rev}" (file-relative-name file)))
- ;; Some problem happened. E.g. We can't find an `hg'
- ;; executable.
- (error nil)))))))
- (if (eq 0 status)
- out
- ;; Check if the file is in the 'added state, the above hg
- ;; command does not distinguish between 'added and 'unregistered.
- (setq status
- (condition-case nil
- (let ((process-environment avoid-local-env))
- (process-file
- vc-hg-program nil nil nil
- ;; We use "log" here, if there's a faster command
- ;; that returns true for an 'added file and false
- ;; for an 'unregistered one, we could use that.
- "log" "-l1" (file-relative-name file)))
- ;; Some problem happened. E.g. We can't find an `hg'
- ;; executable.
- (error nil)))
- (when (eq 0 status) "0"))))
+ (let ((default-directory (if (file-directory-p file)
+ (file-name-as-directory file)
+ (file-name-directory file))))
+ (ignore-errors
+ (with-output-to-string
+ (process-file vc-hg-program nil standard-output nil
+ "log" "-l" "1" "--template" "{rev}"
+ (file-relative-name file))))))
;;; History functions