From b704e589f411d51c7240d104d88422aa2d757822 Mon Sep 17 00:00:00 2001 From: Alexandre Julliard Date: Mon, 26 Mar 2007 12:16:16 +0200 Subject: [PATCH] git.el: Display some information about the HEAD commit. Use git-log --pretty=oneline to print a short description of the current HEAD (and merge heads if any) in the buffer header. Signed-off-by: Alexandre Julliard Signed-off-by: Junio C Hamano --- contrib/emacs/git.el | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/contrib/emacs/git.el b/contrib/emacs/git.el index 5f22dec5f7..2f9995ea39 100644 --- a/contrib/emacs/git.el +++ b/contrib/emacs/git.el @@ -263,6 +263,16 @@ and returns the process output as a string." (locale-charset-to-coding-system repo-config)) 'utf-8))) +(defun git-get-logoutput-coding-system () + "Return the coding system used for git-log output." + (let ((repo-config (or (git-config "i18n.logoutputencoding") + (git-config "i18n.commitencoding")))) + (or git-commits-coding-system + (and repo-config + (fboundp 'locale-charset-to-coding-system) + (locale-charset-to-coding-system repo-config)) + 'utf-8))) + (defun git-escape-file-name (name) "Escape a file name if necessary." (if (string-match "[\n\t\"\\]" name) @@ -406,6 +416,14 @@ and returns the process output as a string." (push (match-string 0) heads)))) (nreverse heads))) +(defun git-get-commit-description (commit) + "Get a one-line description of COMMIT." + (let ((coding-system-for-read (git-get-logoutput-coding-system))) + (let ((descr (git-call-process-env-string nil "log" "--max-count=1" "--pretty=oneline" commit))) + (if (and descr (string-match "\\`\\([0-9a-f]\\{40\\}\\) *\\(.*\\)$" descr)) + (concat (substring (match-string 1 descr) 0 10) " - " (match-string 2 descr)) + descr)))) + ;;;; File info structure ;;;; ------------------------------------------------------------ @@ -573,7 +591,7 @@ and returns the process output as a string." "Refresh the ewoc header and footer." (let ((branch (git-symbolic-ref "HEAD")) (head (if (git-empty-db-p) "Nothing committed yet" - (substring (git-rev-parse "HEAD") 0 10))) + (git-get-commit-description "HEAD"))) (merge-heads (git-get-merge-heads))) (ewoc-set-hf status (format "Directory: %s\nBranch: %s\nHead: %s%s\n" @@ -584,7 +602,7 @@ and returns the process output as a string." head (if merge-heads (concat "\nMerging: " - (mapconcat (lambda (str) (substring str 0 10)) merge-heads " ")) + (mapconcat (lambda (str) (git-get-commit-description str)) merge-heads "\n ")) "")) (if (ewoc-nth status 0) "" " No changes."))))