;;
;; TODO
;; - portability to XEmacs
-;; - better handling of subprocess errors
;; - diff against other branch
;; - renaming files from the status buffer
;; - creating tags
(defun git-call-process-env (buffer env &rest args)
"Wrapper for call-process that sets environment strings."
- (if env
- (apply #'call-process "env" nil buffer nil
- (append (git-get-env-strings env) (list "git") args))
+ (let ((process-environment (append (git-get-env-strings env)
+ process-environment)))
(apply #'call-process "git" nil buffer nil args)))
+(defun git-call-process-display-error (&rest args)
+ "Wrapper for call-process that displays error messages."
+ (let* ((dir default-directory)
+ (buffer (get-buffer-create "*Git Command Output*"))
+ (ok (with-current-buffer buffer
+ (let ((default-directory dir)
+ (buffer-read-only nil))
+ (erase-buffer)
+ (eq 0 (apply 'call-process "git" nil (list buffer t) nil args))))))
+ (unless ok (display-message-or-buffer buffer))
+ ok))
+
(defun git-call-process-env-string (env &rest args)
"Wrapper for call-process that sets environment strings,
-and returns the process output as a string."
+and returns the process output as a string, or nil if the git failed."
(with-temp-buffer
(and (eq 0 (apply #' git-call-process-env t env args))
(buffer-string))))
(when reason
(push reason args)
(push "-m" args))
- (eq 0 (apply #'git-call-process-env nil nil "update-ref" args))))
+ (apply 'git-call-process-display-error "update-ref" args)))
(defun git-read-tree (tree &optional index-file)
"Read a tree into the index file."
(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."))
(if (or (not (string-equal tree head-tree))
(yes-or-no-p "The tree was not modified, do you really want to perform an empty commit? "))
(let ((commit (git-commit-tree buffer tree head)))
- (condition-case nil (delete-file ".git/MERGE_HEAD") (error nil))
- (condition-case nil (delete-file ".git/MERGE_MSG") (error nil))
- (with-current-buffer buffer (erase-buffer))
- (git-update-status-files (git-get-filenames files) 'uptodate)
- (git-call-process-env nil nil "rerere")
- (git-call-process-env nil nil "gc" "--auto")
- (git-refresh-files)
- (git-refresh-ewoc-hf git-status)
- (message "Committed %s." commit)
- (git-run-hook "post-commit" nil))
+ (when commit
+ (condition-case nil (delete-file ".git/MERGE_HEAD") (error nil))
+ (condition-case nil (delete-file ".git/MERGE_MSG") (error nil))
+ (with-current-buffer buffer (erase-buffer))
+ (git-update-status-files (git-get-filenames files) 'uptodate)
+ (git-call-process-env nil nil "rerere")
+ (git-call-process-env nil nil "gc" "--auto")
+ (git-refresh-files)
+ (git-refresh-ewoc-hf git-status)
+ (message "Committed %s." commit)
+ (git-run-hook "post-commit" nil)))
(message "Commit aborted."))))
(message "No files to commit.")))
(delete-file index-file))))))
;; FIXME: add support for directories
(unless files
(push (file-relative-name (read-file-name "File to add: " nil nil t)) files))
- (apply #'git-call-process-env nil nil "update-index" "--add" "--" files)
- (git-update-status-files files 'uptodate)
- (git-success-message "Added" files)))
+ (when (apply 'git-call-process-display-error "update-index" "--add" "--" files)
+ (git-update-status-files files 'uptodate)
+ (git-success-message "Added" files))))
(defun git-ignore-file ()
"Add marked file(s) to the ignore list."
(if (file-directory-p name)
(delete-directory name)
(delete-file name))))
- (apply #'git-call-process-env nil nil "update-index" "--remove" "--" files)
- (git-update-status-files files nil)
- (git-success-message "Removed" files))
+ (when (apply 'git-call-process-display-error "update-index" "--remove" "--" files)
+ (git-update-status-files files nil)
+ (git-success-message "Removed" files)))
(message "Aborting"))))
(defun git-revert-file ()
('deleted (push (git-fileinfo->name info) modified))
('unmerged (push (git-fileinfo->name info) modified))
('modified (push (git-fileinfo->name info) modified))))
- (when added
- (apply #'git-call-process-env nil nil "update-index" "--force-remove" "--" added))
- (when modified
- (apply #'git-call-process-env nil nil "checkout" "HEAD" modified))
- (git-update-status-files (append added modified) 'uptodate)
- (git-success-message "Reverted" (git-get-filenames files)))))
+ ;; check if a buffer contains one of the files and isn't saved
+ (dolist (file modified)
+ (let ((buffer (get-file-buffer file)))
+ (when (and buffer (buffer-modified-p buffer))
+ (error "Buffer %s is modified. Please kill or save modified buffers before reverting." (buffer-name buffer)))))
+ (let ((ok (and
+ (or (not added)
+ (apply 'git-call-process-display-error "update-index" "--force-remove" "--" added))
+ (or (not modified)
+ (apply 'git-call-process-display-error "checkout" "HEAD" modified)))))
+ (git-update-status-files (append added modified) 'uptodate)
+ (when ok
+ (dolist (file modified)
+ (let ((buffer (get-file-buffer file)))
+ (when buffer (with-current-buffer buffer (revert-buffer t t t)))))
+ (git-success-message "Reverted" (git-get-filenames files)))))))
(defun git-resolve-file ()
"Resolve conflicts in marked file(s)."
(interactive)
(let ((files (git-get-filenames (git-marked-files-state 'unmerged))))
(when files
- (apply #'git-call-process-env nil nil "update-index" "--" files)
- (git-update-status-files files 'uptodate)
- (git-success-message "Resolved" files))))
+ (when (apply 'git-call-process-display-error "update-index" "--" files)
+ (git-update-status-files files 'uptodate)
+ (git-success-message "Resolved" files)))))
(defun git-remove-handled ()
"Remove handled files from the status list."
(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."
(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)))
+ (when (git-call-process-display-error "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)
(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)
(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)
(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)