It reverts the commit and sets up the status and edit log buffer to
allow making changes and recommitting it. Bound to C-c C-a.
Signed-off-by: Alexandre Julliard <julliard@xxxxxxxxxx>
---
contrib/emacs/git.el | 74 +++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 73 insertions(+), 1 deletions(-)
diff --git a/contrib/emacs/git.el b/contrib/emacs/git.el
index 58d72a5..5519ed1 100644
--- a/contrib/emacs/git.el
+++ b/contrib/emacs/git.el
@@ -740,6 +740,27 @@ Return the list of files that haven't been handled."
(git-refresh-files)
(git-refresh-ewoc-hf git-status)))
+(defun git-mark-files (status files)
+ "Mark all the specified FILES, and unmark the others."
+ (setq files (sort files #'string-lessp))
+ (let ((file (and files (pop files)))
+ (node (ewoc-nth status 0)))
+ (while node
+ (let ((info (ewoc-data node)))
+ (if (and file (string-equal (git-fileinfo->name info) file))
+ (progn
+ (unless (git-fileinfo->marked info)
+ (setf (git-fileinfo->marked info) t)
+ (setf (git-fileinfo->needs-refresh info) t))
+ (setq file (pop files))
+ (setq node (ewoc-next status node)))
+ (when (git-fileinfo->marked info)
+ (setf (git-fileinfo->marked info) nil)
+ (setf (git-fileinfo->needs-refresh info) t))
+ (if (and file (string-lessp file (git-fileinfo->name info)))
+ (setq file (pop files))
+ (setq node (ewoc-next status node))))))))
+
(defun git-marked-files ()
"Return a list of all marked files, or if none a list containing just the file at cursor position."
(unless git-status (error "Not in git-status buffer."))
@@ -1218,7 +1239,8 @@ Return the list of files that haven't been handled."
(goto-char (point-min))
(when (re-search-forward "\n+\\'" nil t)
(replace-match "\n" t t))
- (when sign-off (git-append-sign-off committer-name committer-email)))))
+ (when sign-off (git-append-sign-off committer-name committer-email)))
+ buffer))
(defun git-commit-file ()
"Commit the marked file(s), asking for a commit message."
@@ -1251,6 +1273,52 @@ Return the list of files that haven't been handled."
(setq buffer-file-coding-system coding-system)
(re-search-forward (regexp-quote (concat git-log-msg-separator "\n")) nil t))))
+(defun git-setup-commit-buffer (commit)
+ "Setup the commit buffer with the contents of COMMIT."
+ (let (author-name author-email subject date msg)
+ (with-temp-buffer
+ (let ((coding-system (git-get-logoutput-coding-system)))
+ (git-call-process-env t nil "log" "-1" commit)
+ (goto-char (point-min))
+ (when (re-search-forward "^Author: *\\(.*\\) <\\(.*\\)>$" nil t)
+ (setq author-name (match-string 1))
+ (setq author-email (match-string 2)))
+ (when (re-search-forward "^Date: *\\(.*\\)$" nil t)
+ (setq date (match-string 1)))
+ (while (re-search-forward "^ \\(.*\\)$" nil t)
+ (push (match-string 1) msg))
+ (setq msg (nreverse msg))
+ (setq subject (pop msg))
+ (while (and msg (zerop (length (car msg))) (pop msg)))))
+ (git-setup-log-buffer (get-buffer-create "*git-commit*")
+ author-name author-email subject date
+ (mapconcat #'identity msg "\n"))))
+
+(defun git-get-commit-files (commit)
+ "Retrieve the list of files modified by COMMIT."
+ (let (files)
+ (with-temp-buffer
+ (git-call-process-env t nil "diff-tree" "-r" "-z" "--name-only" "--no-commit-id" commit)
+ (goto-char (point-min))
+ (while (re-search-forward "\\([^\0]*\\)\0" nil t 1)
+ (push (match-string 1) files)))
+ files))
+
+(defun git-amend-commit ()
+ "Undo the last commit on HEAD, and set things up to commit an
+amended version of it."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (when (git-empty-db-p) (error "No commit to amend."))
+ (let* ((commit (git-rev-parse "HEAD"))
+ (files (git-get-commit-files commit)))
+ (git-call-process-env nil nil "reset" "--soft" "HEAD^")
+ (git-update-status-files (copy-sequence files) 'uptodate)
+ (git-mark-files git-status files)
+ (git-refresh-files)
+ (git-setup-commit-buffer commit)
+ (git-commit-file)))
+
(defun git-find-file ()
"Visit the current file in its own buffer."
(interactive)
@@ -1329,6 +1397,7 @@ Return the list of files that haven't been handled."
(unless git-status-mode-map
(let ((map (make-keymap))
+ (commit-map (make-sparse-keymap))
(diff-map (make-sparse-keymap))
(toggle-map (make-sparse-keymap)))
(suppress-keymap map)
@@ -1337,6 +1406,7 @@ Return the list of files that haven't been handled."
(define-key map " " 'git-next-file)
(define-key map "a" 'git-add-file)
(define-key map "c" 'git-commit-file)
+ (define-key map "\C-c" commit-map)
(define-key map "d" diff-map)
(define-key map "=" 'git-diff-file)
(define-key map "f" 'git-find-file)
@@ -1362,6 +1432,8 @@ Return the list of files that haven't been handled."
(define-key map "x" 'git-remove-handled)
(define-key map "\C-?" 'git-unmark-file-up)
(define-key map "\M-\C-?" 'git-unmark-all)
+ ; the commit submap
+ (define-key commit-map "\C-a" 'git-amend-commit)
; the diff submap
(define-key diff-map "b" 'git-diff-file-base)
(define-key diff-map "c" 'git-diff-file-combined)
--
1.5.4.38.g0d380
--
Alexandre Julliard
julliard@xxxxxxxxxx
-
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