1 ;;; git.el --- A user interface for git
3 ;; Copyright (C) 2005, 2006 Alexandre Julliard <julliard@winehq.org>
7 ;; This program is free software; you can redistribute it and/or
8 ;; modify it under the terms of the GNU General Public License as
9 ;; published by the Free Software Foundation; either version 2 of
10 ;; the License, or (at your option) any later version.
12 ;; This program is distributed in the hope that it will be
13 ;; useful, but WITHOUT ANY WARRANTY; without even the implied
14 ;; warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 ;; PURPOSE. See the GNU General Public License for more details.
17 ;; You should have received a copy of the GNU General Public
18 ;; License along with this program; if not, write to the Free
19 ;; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 ;; This file contains an interface for the git version control
25 ;; system. It provides easy access to the most frequently used git
26 ;; commands. The user interface is as far as possible identical to
27 ;; that of the PCL-CVS mode.
29 ;; To install: put this file on the load-path and place the following
30 ;; in your .emacs file:
34 ;; To start: `M-x git-status'
37 ;; - portability to XEmacs
38 ;; - better handling of subprocess errors
39 ;; - hook into file save (after-save-hook)
40 ;; - diff against other branch
41 ;; - renaming files from the status buffer
44 ;; - switching branches
46 ;; - git-show-branch browser
50 (eval-when-compile (require 'cl))
55 ;;;; ------------------------------------------------------------
58 "A user interface for the git versioning system."
61 (defcustom git-committer-name nil
62 "User name to use for commits.
63 The default is to fall back to the repository config,
64 then to `add-log-full-name' and then to `user-full-name'."
66 :type '(choice (const :tag "Default" nil)
67 (string :tag "Name")))
69 (defcustom git-committer-email nil
70 "Email address to use for commits.
71 The default is to fall back to the git repository config,
72 then to `add-log-mailing-address' and then to `user-mail-address'."
74 :type '(choice (const :tag "Default" nil)
75 (string :tag "Email")))
77 (defcustom git-commits-coding-system 'utf-8
78 "Default coding system for the log message of git commits."
82 (defcustom git-append-signed-off-by nil
83 "Whether to append a Signed-off-by line to the commit message before editing."
87 (defcustom git-reuse-status-buffer t
88 "Whether `git-status' should try to reuse an existing buffer
89 if there is already one that displays the same directory."
93 (defcustom git-per-dir-ignore-file ".gitignore"
94 "Name of the per-directory ignore file."
99 (defface git-status-face
100 '((((class color) (background light)) (:foreground "purple")))
101 "Git mode face used to highlight added and modified files."
104 (defface git-unmerged-face
105 '((((class color) (background light)) (:foreground "red" :bold t)))
106 "Git mode face used to highlight unmerged files."
109 (defface git-unknown-face
110 '((((class color) (background light)) (:foreground "goldenrod" :bold t)))
111 "Git mode face used to highlight unknown files."
114 (defface git-uptodate-face
115 '((((class color) (background light)) (:foreground "grey60")))
116 "Git mode face used to highlight up-to-date files."
119 (defface git-ignored-face
120 '((((class color) (background light)) (:foreground "grey60")))
121 "Git mode face used to highlight ignored files."
124 (defface git-mark-face
125 '((((class color) (background light)) (:foreground "red" :bold t)))
126 "Git mode face used for the file marks."
129 (defface git-header-face
130 '((((class color) (background light)) (:foreground "blue")))
131 "Git mode face used for commit headers."
134 (defface git-separator-face
135 '((((class color) (background light)) (:foreground "brown")))
136 "Git mode face used for commit separator."
139 (defface git-permission-face
140 '((((class color) (background light)) (:foreground "green" :bold t)))
141 "Git mode face used for permission changes."
146 ;;;; ------------------------------------------------------------
148 (defconst git-log-msg-separator "--- log message follows this line ---")
150 (defun git-get-env-strings (env)
151 "Build a list of NAME=VALUE strings from a list of environment strings."
152 (mapcar (lambda (entry) (concat (car entry) "=" (cdr entry))) env))
154 (defun git-call-process-env (buffer env &rest args)
155 "Wrapper for call-process that sets environment strings."
157 (apply #'call-process "env" nil buffer nil
158 (append (git-get-env-strings env) (list "git") args))
159 (apply #'call-process "git" nil buffer nil args)))
161 (defun git-call-process-env-string (env &rest args)
162 "Wrapper for call-process that sets environment strings,
163 and returns the process output as a string."
165 (and (eq 0 (apply #' git-call-process-env t env args))
168 (defun git-run-process-region (buffer start end program args)
169 "Run a git process with a buffer region as input."
170 (let ((output-buffer (current-buffer))
171 (dir default-directory))
172 (with-current-buffer buffer
174 (apply #'call-process-region start end program
175 nil (list output-buffer nil) nil args))))
177 (defun git-run-command-buffer (buffer-name &rest args)
178 "Run a git command, sending the output to a buffer named BUFFER-NAME."
179 (let ((dir default-directory)
180 (buffer (get-buffer-create buffer-name)))
181 (message "Running git %s..." (car args))
182 (with-current-buffer buffer
183 (let ((default-directory dir)
184 (buffer-read-only nil))
186 (apply #'git-call-process-env buffer nil args)))
187 (message "Running git %s...done" (car args))
190 (defun git-run-command (buffer env &rest args)
191 (message "Running git %s..." (car args))
192 (apply #'git-call-process-env buffer env args)
193 (message "Running git %s...done" (car args)))
195 (defun git-run-command-region (buffer start end env &rest args)
196 "Run a git command with specified buffer region as input."
197 (message "Running git %s..." (car args))
198 (unless (eq 0 (if env
199 (git-run-process-region
200 buffer start end "env"
201 (append (git-get-env-strings env) (list "git") args))
202 (git-run-process-region
203 buffer start end "git" args)))
204 (error "Failed to run \"git %s\":\n%s" (mapconcat (lambda (x) x) args " ") (buffer-string)))
205 (message "Running git %s...done" (car args)))
207 (defun git-get-string-sha1 (string)
208 "Read a SHA1 from the specified string."
210 (string-match "[0-9a-f]\\{40\\}" string)
211 (match-string 0 string)))
213 (defun git-get-committer-name ()
214 "Return the name to use as GIT_COMMITTER_NAME."
215 ; copied from log-edit
216 (or git-committer-name
217 (git-repo-config "user.name")
218 (and (boundp 'add-log-full-name) add-log-full-name)
219 (and (fboundp 'user-full-name) (user-full-name))
220 (and (boundp 'user-full-name) user-full-name)))
222 (defun git-get-committer-email ()
223 "Return the email address to use as GIT_COMMITTER_EMAIL."
224 ; copied from log-edit
225 (or git-committer-email
226 (git-repo-config "user.email")
227 (and (boundp 'add-log-mailing-address) add-log-mailing-address)
228 (and (fboundp 'user-mail-address) (user-mail-address))
229 (and (boundp 'user-mail-address) user-mail-address)))
231 (defun git-escape-file-name (name)
232 "Escape a file name if necessary."
233 (if (string-match "[\n\t\"\\]" name)
235 (mapconcat (lambda (c)
241 (t (char-to-string c))))
246 (defun git-get-top-dir (dir)
247 "Retrieve the top-level directory of a git tree."
248 (let ((cdup (with-output-to-string
249 (with-current-buffer standard-output
251 (unless (eq 0 (call-process "git" nil t nil "rev-parse" "--show-cdup"))
252 (error "cannot find top-level git tree for %s." dir))))))
253 (expand-file-name (concat (file-name-as-directory dir)
254 (car (split-string cdup "\n"))))))
257 (defun git-append-to-ignore (file)
258 "Add a file name to the ignore file in its directory."
259 (let* ((fullname (expand-file-name file))
260 (dir (file-name-directory fullname))
261 (name (file-name-nondirectory fullname))
262 (ignore-name (expand-file-name git-per-dir-ignore-file dir))
263 (created (not (file-exists-p ignore-name))))
264 (save-window-excursion
265 (set-buffer (find-file-noselect ignore-name))
266 (goto-char (point-max))
267 (unless (zerop (current-column)) (insert "\n"))
268 (insert "/" name "\n")
269 (sort-lines nil (point-min) (point-max))
272 (git-run-command nil nil "update-index" "--info-only" "--add" "--" (file-relative-name ignore-name)))
273 (git-add-status-file (if created 'added 'modified) (file-relative-name ignore-name))))
276 ;;;; Wrappers for basic git commands
277 ;;;; ------------------------------------------------------------
279 (defun git-rev-parse (rev)
280 "Parse a revision name and return its SHA1."
282 (git-call-process-env-string nil "rev-parse" rev)))
284 (defun git-repo-config (key)
285 "Retrieve the value associated to KEY in the git repository config file."
286 (let ((str (git-call-process-env-string nil "repo-config" key)))
287 (and str (car (split-string str "\n")))))
289 (defun git-symbolic-ref (ref)
290 "Wrapper for the git-symbolic-ref command."
291 (let ((str (git-call-process-env-string nil "symbolic-ref" ref)))
292 (and str (car (split-string str "\n")))))
294 (defun git-update-ref (ref val &optional oldval)
295 "Update a reference by calling git-update-ref."
296 (apply #'git-call-process-env nil nil "update-ref" ref val (if oldval (list oldval))))
298 (defun git-read-tree (tree &optional index-file)
299 "Read a tree into the index file."
300 (apply #'git-call-process-env nil
301 (if index-file `(("GIT_INDEX_FILE" . ,index-file)) nil)
302 "read-tree" (if tree (list tree))))
304 (defun git-write-tree (&optional index-file)
305 "Call git-write-tree and return the resulting tree SHA1 as a string."
307 (git-call-process-env-string (and index-file `(("GIT_INDEX_FILE" . ,index-file))) "write-tree")))
309 (defun git-commit-tree (buffer tree head)
310 "Call git-commit-tree with buffer as input and return the resulting commit SHA1."
311 (let ((author-name (git-get-committer-name))
312 (author-email (git-get-committer-email))
313 author-date log-start log-end args)
317 (with-current-buffer buffer
318 (goto-char (point-min))
320 (setq log-start (re-search-forward (concat "^" (regexp-quote git-log-msg-separator) "\n") nil t))
322 (narrow-to-region (point-min) log-start)
323 (goto-char (point-min))
324 (when (re-search-forward "^Author: +\\(.*?\\) *<\\(.*\\)> *$" nil t)
325 (setq author-name (match-string 1)
326 author-email (match-string 2)))
327 (goto-char (point-min))
328 (when (re-search-forward "^Date: +\\(.*\\)$" nil t)
329 (setq author-date (match-string 1)))
330 (goto-char (point-min))
331 (while (re-search-forward "^Parent: +\\([0-9a-f]+\\)" nil t)
332 (unless (string-equal head (match-string 1))
334 (push (match-string 1) args))))
335 (setq log-start (point-min)))
336 (setq log-end (point-max)))
338 (with-output-to-string
339 (with-current-buffer standard-output
340 (let ((coding-system-for-write git-commits-coding-system)
341 (env `(("GIT_AUTHOR_NAME" . ,author-name)
342 ("GIT_AUTHOR_EMAIL" . ,author-email)
343 ("GIT_COMMITTER_NAME" . ,(git-get-committer-name))
344 ("GIT_COMMITTER_EMAIL" . ,(git-get-committer-email)))))
345 (when author-date (push `("GIT_AUTHOR_DATE" . ,author-date) env))
346 (apply #'git-run-command-region
347 buffer log-start log-end env
348 "commit-tree" tree (nreverse args))))))))
350 (defun git-empty-db-p ()
351 "Check if the git db is empty (no commit done yet)."
352 (not (eq 0 (call-process "git" nil nil nil "rev-parse" "--verify" "HEAD"))))
354 (defun git-get-merge-heads ()
355 "Retrieve the merge heads from the MERGE_HEAD file if present."
357 (when (file-readable-p ".git/MERGE_HEAD")
359 (insert-file-contents ".git/MERGE_HEAD" nil nil nil t)
360 (goto-char (point-min))
361 (while (re-search-forward "[0-9a-f]\\{40\\}" nil t)
362 (push (match-string 0) heads))))
365 ;;;; File info structure
366 ;;;; ------------------------------------------------------------
368 ; fileinfo structure stolen from pcl-cvs
369 (defstruct (git-fileinfo
371 (:constructor git-create-fileinfo (state name &optional old-perm new-perm rename-state orig-name marked))
372 (:conc-name git-fileinfo->))
374 state ;; current state
376 old-perm new-perm ;; permission flags
377 rename-state ;; rename or copy state
378 orig-name ;; original name for renames or copies
379 needs-refresh) ;; whether file needs to be refreshed
381 (defvar git-status nil)
383 (defun git-clear-status (status)
384 "Remove everything from the status list."
385 (ewoc-filter status (lambda (info) nil)))
387 (defun git-set-files-state (files state)
388 "Set the state of a list of files."
390 (unless (eq (git-fileinfo->state info) state)
391 (setf (git-fileinfo->state info) state)
392 (setf (git-fileinfo->rename-state info) nil)
393 (setf (git-fileinfo->orig-name info) nil)
394 (setf (git-fileinfo->needs-refresh info) t))))
396 (defun git-state-code (code)
397 "Convert from a string to a added/deleted/modified state."
398 (case (string-to-char code)
406 (defun git-status-code-as-string (code)
407 "Format a git status code as string."
409 ('modified (propertize "Modified" 'face 'git-status-face))
410 ('unknown (propertize "Unknown " 'face 'git-unknown-face))
411 ('added (propertize "Added " 'face 'git-status-face))
412 ('deleted (propertize "Deleted " 'face 'git-status-face))
413 ('unmerged (propertize "Unmerged" 'face 'git-unmerged-face))
414 ('uptodate (propertize "Uptodate" 'face 'git-uptodate-face))
415 ('ignored (propertize "Ignored " 'face 'git-ignored-face))
418 (defun git-rename-as-string (info)
419 "Return a string describing the copy or rename associated with INFO, or an empty string if none."
420 (let ((state (git-fileinfo->rename-state info)))
424 (if (eq state 'copy) "copied from "
425 (if (eq (git-fileinfo->state info) 'added) "renamed from "
427 (git-escape-file-name (git-fileinfo->orig-name info))
428 ")") 'face 'git-status-face)
431 (defun git-permissions-as-string (old-perm new-perm)
432 "Format a permission change as string."
434 (if (or (not old-perm)
436 (eq 0 (logand ?\111 (logxor old-perm new-perm))))
438 (if (eq 0 (logand ?\111 old-perm)) "+x" "-x"))
439 'face 'git-permission-face))
441 (defun git-fileinfo-prettyprint (info)
442 "Pretty-printer for the git-fileinfo structure."
443 (insert (format " %s %s %s %s%s"
444 (if (git-fileinfo->marked info) (propertize "*" 'face 'git-mark-face) " ")
445 (git-status-code-as-string (git-fileinfo->state info))
446 (git-permissions-as-string (git-fileinfo->old-perm info) (git-fileinfo->new-perm info))
447 (git-escape-file-name (git-fileinfo->name info))
448 (git-rename-as-string info))))
450 (defun git-parse-status (status)
451 "Parse the output of git-diff-index in the current buffer."
452 (goto-char (point-min))
453 (while (re-search-forward
454 ":\\([0-7]\\{6\\}\\) \\([0-7]\\{6\\}\\) [0-9a-f]\\{40\\} [0-9a-f]\\{40\\} \\(\\([ADMU]\\)\0\\([^\0]+\\)\\|\\([CR]\\)[0-9]*\0\\([^\0]+\\)\0\\([^\0]+\\)\\)\0"
456 (let ((old-perm (string-to-number (match-string 1) 8))
457 (new-perm (string-to-number (match-string 2) 8))
458 (state (or (match-string 4) (match-string 6)))
459 (name (or (match-string 5) (match-string 7)))
460 (new-name (match-string 8)))
461 (if new-name ; copy or rename
462 (if (eq ?C (string-to-char state))
463 (ewoc-enter-last status (git-create-fileinfo 'added new-name old-perm new-perm 'copy name))
464 (ewoc-enter-last status (git-create-fileinfo 'deleted name 0 0 'rename new-name))
465 (ewoc-enter-last status (git-create-fileinfo 'added new-name old-perm new-perm 'rename name)))
466 (ewoc-enter-last status (git-create-fileinfo (git-state-code state) name old-perm new-perm))))))
468 (defun git-find-status-file (status file)
469 "Find a given file in the status ewoc and return its node."
470 (let ((node (ewoc-nth status 0)))
471 (while (and node (not (string= file (git-fileinfo->name (ewoc-data node)))))
472 (setq node (ewoc-next status node)))
475 (defun git-parse-ls-files (status default-state &optional skip-existing)
476 "Parse the output of git-ls-files in the current buffer."
477 (goto-char (point-min))
479 (while (re-search-forward "\\([HMRCK?]\\) \\([^\0]*\\)\0" nil t 1)
480 (let ((state (match-string 1))
481 (name (match-string 2)))
482 (unless (and skip-existing (git-find-status-file status name))
483 (push (git-create-fileinfo (or (git-state-code state) default-state) name) infolist))))
484 (dolist (info (nreverse infolist))
485 (ewoc-enter-last status info))))
487 (defun git-parse-ls-unmerged (status)
488 "Parse the output of git-ls-files -u in the current buffer."
489 (goto-char (point-min))
491 (while (re-search-forward "[0-7]\\{6\\} [0-9a-f]\\{40\\} [123]\t\\([^\0]+\\)\0" nil t)
492 (let ((node (git-find-status-file status (match-string 1))))
493 (when node (push (ewoc-data node) files))))
494 (git-set-files-state files 'unmerged)))
496 (defun git-add-status-file (state name)
497 "Add a new file to the status list (if not existing already) and return its node."
498 (unless git-status (error "Not in git-status buffer."))
499 (or (git-find-status-file git-status name)
500 (ewoc-enter-last git-status (git-create-fileinfo state name))))
502 (defun git-marked-files ()
503 "Return a list of all marked files, or if none a list containing just the file at cursor position."
504 (unless git-status (error "Not in git-status buffer."))
505 (or (ewoc-collect git-status (lambda (info) (git-fileinfo->marked info)))
506 (list (ewoc-data (ewoc-locate git-status)))))
508 (defun git-marked-files-state (&rest states)
509 "Return marked files that are in the specified states."
510 (let ((files (git-marked-files))
513 (when (memq (git-fileinfo->state info) states)
517 (defun git-refresh-files ()
518 "Refresh all files that need it and clear the needs-refresh flag."
519 (unless git-status (error "Not in git-status buffer."))
522 (let ((refresh (git-fileinfo->needs-refresh info)))
523 (setf (git-fileinfo->needs-refresh info) nil)
526 ; move back to goal column
527 (when goal-column (move-to-column goal-column)))
529 (defun git-refresh-ewoc-hf (status)
530 "Refresh the ewoc header and footer."
531 (let ((branch (git-symbolic-ref "HEAD"))
532 (head (if (git-empty-db-p) "Nothing committed yet"
533 (substring (git-rev-parse "HEAD") 0 10)))
534 (merge-heads (git-get-merge-heads)))
536 (format "Directory: %s\nBranch: %s\nHead: %s%s\n"
538 (if (string-match "^refs/heads/" branch)
539 (substring branch (match-end 0))
543 (concat "\nMerging: "
544 (mapconcat (lambda (str) (substring str 0 10)) merge-heads " "))
546 (if (ewoc-nth status 0) "" " No changes."))))
548 (defun git-get-filenames (files)
549 (mapcar (lambda (info) (git-fileinfo->name info)) files))
551 (defun git-update-index (index-file files)
552 "Run git-update-index on a list of files."
553 (let ((env (and index-file `(("GIT_INDEX_FILE" . ,index-file))))
554 added deleted modified)
556 (case (git-fileinfo->state info)
557 ('added (push info added))
558 ('deleted (push info deleted))
559 ('modified (push info modified))))
561 (apply #'git-run-command nil env "update-index" "--add" "--" (git-get-filenames added)))
563 (apply #'git-run-command nil env "update-index" "--remove" "--" (git-get-filenames deleted)))
565 (apply #'git-run-command nil env "update-index" "--" (git-get-filenames modified)))))
567 (defun git-do-commit ()
568 "Perform the actual commit using the current buffer as log message."
570 (let ((buffer (current-buffer))
571 (index-file (make-temp-file "gitidx")))
572 (with-current-buffer log-edit-parent-buffer
573 (if (git-marked-files-state 'unmerged)
574 (message "You cannot commit unmerged files, resolve them first.")
576 (let ((files (git-marked-files-state 'added 'deleted 'modified))
578 (unless (git-empty-db-p)
579 (setq head (git-rev-parse "HEAD")
580 head-tree (git-rev-parse "HEAD^{tree}")))
583 (git-read-tree head-tree index-file)
584 (git-update-index nil files) ;update both the default index
585 (git-update-index index-file files) ;and the temporary one
586 (let ((tree (git-write-tree index-file)))
587 (if (or (not (string-equal tree head-tree))
588 (yes-or-no-p "The tree was not modified, do you really want to perform an empty commit? "))
589 (let ((commit (git-commit-tree buffer tree head)))
590 (git-update-ref "HEAD" commit head)
591 (condition-case nil (delete-file ".git/MERGE_HEAD") (error nil))
592 (condition-case nil (delete-file ".git/MERGE_MSG") (error nil))
593 (with-current-buffer buffer (erase-buffer))
594 (git-set-files-state files 'uptodate)
595 (when (file-directory-p ".git/rr-cache")
596 (git-run-command nil nil "rerere"))
598 (git-refresh-ewoc-hf git-status)
599 (message "Committed %s." commit))
600 (message "Commit aborted."))))
601 (message "No files to commit.")))
602 (delete-file index-file))))))
605 ;;;; Interactive functions
606 ;;;; ------------------------------------------------------------
608 (defun git-mark-file ()
609 "Mark the file that the cursor is on and move to the next one."
611 (unless git-status (error "Not in git-status buffer."))
612 (let* ((pos (ewoc-locate git-status))
613 (info (ewoc-data pos)))
614 (setf (git-fileinfo->marked info) t)
615 (ewoc-invalidate git-status pos)
616 (ewoc-goto-next git-status 1)))
618 (defun git-unmark-file ()
619 "Unmark the file that the cursor is on and move to the next one."
621 (unless git-status (error "Not in git-status buffer."))
622 (let* ((pos (ewoc-locate git-status))
623 (info (ewoc-data pos)))
624 (setf (git-fileinfo->marked info) nil)
625 (ewoc-invalidate git-status pos)
626 (ewoc-goto-next git-status 1)))
628 (defun git-unmark-file-up ()
629 "Unmark the file that the cursor is on and move to the previous one."
631 (unless git-status (error "Not in git-status buffer."))
632 (let* ((pos (ewoc-locate git-status))
633 (info (ewoc-data pos)))
634 (setf (git-fileinfo->marked info) nil)
635 (ewoc-invalidate git-status pos)
636 (ewoc-goto-prev git-status 1)))
638 (defun git-mark-all ()
641 (unless git-status (error "Not in git-status buffer."))
642 (ewoc-map (lambda (info) (setf (git-fileinfo->marked info) t) t) git-status)
643 ; move back to goal column after invalidate
644 (when goal-column (move-to-column goal-column)))
646 (defun git-unmark-all ()
649 (unless git-status (error "Not in git-status buffer."))
650 (ewoc-map (lambda (info) (setf (git-fileinfo->marked info) nil) t) git-status)
651 ; move back to goal column after invalidate
652 (when goal-column (move-to-column goal-column)))
654 (defun git-toggle-all-marks ()
655 "Toggle all file marks."
657 (unless git-status (error "Not in git-status buffer."))
658 (ewoc-map (lambda (info) (setf (git-fileinfo->marked info) (not (git-fileinfo->marked info))) t) git-status)
659 ; move back to goal column after invalidate
660 (when goal-column (move-to-column goal-column)))
662 (defun git-next-file (&optional n)
663 "Move the selection down N files."
665 (unless git-status (error "Not in git-status buffer."))
666 (ewoc-goto-next git-status n))
668 (defun git-prev-file (&optional n)
669 "Move the selection up N files."
671 (unless git-status (error "Not in git-status buffer."))
672 (ewoc-goto-prev git-status n))
674 (defun git-next-unmerged-file (&optional n)
675 "Move the selection down N unmerged files."
677 (unless git-status (error "Not in git-status buffer."))
678 (let* ((last (ewoc-locate git-status))
679 (node (ewoc-next git-status last)))
680 (while (and node (> n 0))
681 (when (eq 'unmerged (git-fileinfo->state (ewoc-data node)))
684 (setq node (ewoc-next git-status node)))
685 (ewoc-goto-node git-status last)))
687 (defun git-prev-unmerged-file (&optional n)
688 "Move the selection up N unmerged files."
690 (unless git-status (error "Not in git-status buffer."))
691 (let* ((last (ewoc-locate git-status))
692 (node (ewoc-prev git-status last)))
693 (while (and node (> n 0))
694 (when (eq 'unmerged (git-fileinfo->state (ewoc-data node)))
697 (setq node (ewoc-prev git-status node)))
698 (ewoc-goto-node git-status last)))
700 (defun git-add-file ()
701 "Add marked file(s) to the index cache."
703 (let ((files (git-marked-files-state 'unknown)))
706 (git-add-status-file 'added (file-relative-name
707 (read-file-name "File to add: " nil nil t))))
709 (apply #'git-run-command nil nil "update-index" "--info-only" "--add" "--" (git-get-filenames files))
710 (git-set-files-state files 'added)
711 (git-refresh-files)))
713 (defun git-ignore-file ()
714 "Add marked file(s) to the ignore list."
716 (let ((files (git-marked-files-state 'unknown)))
719 (git-add-status-file 'unknown (file-relative-name
720 (read-file-name "File to ignore: " nil nil t))))
722 (dolist (info files) (git-append-to-ignore (git-fileinfo->name info)))
723 (git-set-files-state files 'ignored)
724 (git-refresh-files)))
726 (defun git-remove-file ()
727 "Remove the marked file(s)."
729 (let ((files (git-marked-files-state 'added 'modified 'unknown 'uptodate)))
732 (git-add-status-file 'unknown (file-relative-name
733 (read-file-name "File to remove: " nil nil t))))
736 (format "Remove %d file%s? " (length files) (if (> (length files) 1) "s" "")))
739 (let ((name (git-fileinfo->name info)))
740 (when (file-exists-p name) (delete-file name))))
741 (apply #'git-run-command nil nil "update-index" "--info-only" "--remove" "--" (git-get-filenames files))
742 ; remove unknown files from the list, set the others to deleted
743 (ewoc-filter git-status
745 (not (and (memq info files) (eq (git-fileinfo->state info) 'unknown))))
747 (git-set-files-state files 'deleted)
749 (unless (ewoc-nth git-status 0) ; refresh header if list is empty
750 (git-refresh-ewoc-hf git-status)))
751 (message "Aborting"))))
753 (defun git-revert-file ()
754 "Revert changes to the marked file(s)."
756 (let ((files (git-marked-files))
760 (format "Revert %d file%s? " (length files) (if (> (length files) 1) "s" ""))))
762 (case (git-fileinfo->state info)
763 ('added (push info added))
764 ('deleted (push info modified))
765 ('unmerged (push info modified))
766 ('modified (push info modified))))
768 (apply #'git-run-command nil nil "update-index" "--force-remove" "--" (git-get-filenames added))
769 (git-set-files-state added 'unknown))
771 (apply #'git-run-command nil nil "checkout" "HEAD" (git-get-filenames modified))
772 (git-set-files-state modified 'uptodate))
773 (git-refresh-files))))
775 (defun git-resolve-file ()
776 "Resolve conflicts in marked file(s)."
778 (let ((files (git-marked-files-state 'unmerged)))
780 (apply #'git-run-command nil nil "update-index" "--info-only" "--" (git-get-filenames files))
781 (git-set-files-state files 'modified)
782 (git-refresh-files))))
784 (defun git-remove-handled ()
785 "Remove handled files from the status list."
787 (ewoc-filter git-status
789 (not (or (eq (git-fileinfo->state info) 'ignored)
790 (eq (git-fileinfo->state info) 'uptodate)))))
791 (unless (ewoc-nth git-status 0) ; refresh header if list is empty
792 (git-refresh-ewoc-hf git-status)))
794 (defun git-setup-diff-buffer (buffer)
795 "Setup a buffer for displaying a diff."
796 (with-current-buffer buffer
798 (goto-char (point-min))
799 (setq buffer-read-only t))
800 (display-buffer buffer)
801 (shrink-window-if-larger-than-buffer))
803 (defun git-diff-file ()
804 "Diff the marked file(s) against HEAD."
806 (let ((files (git-marked-files)))
807 (git-setup-diff-buffer
808 (apply #'git-run-command-buffer "*git-diff*" "diff-index" "-p" "-M" "HEAD" "--" (git-get-filenames files)))))
810 (defun git-diff-file-merge-head (arg)
811 "Diff the marked file(s) against the first merge head (or the nth one with a numeric prefix)."
813 (let ((files (git-marked-files))
814 (merge-heads (git-get-merge-heads)))
815 (unless merge-heads (error "No merge in progress"))
816 (git-setup-diff-buffer
817 (apply #'git-run-command-buffer "*git-diff*" "diff-index" "-p" "-M"
818 (or (nth (1- arg) merge-heads) "HEAD") "--" (git-get-filenames files)))))
820 (defun git-diff-unmerged-file (stage)
821 "Diff the marked unmerged file(s) against the specified stage."
822 (let ((files (git-marked-files)))
823 (git-setup-diff-buffer
824 (apply #'git-run-command-buffer "*git-diff*" "diff-files" "-p" stage "--" (git-get-filenames files)))))
826 (defun git-diff-file-base ()
827 "Diff the marked unmerged file(s) against the common base file."
829 (git-diff-unmerged-file "-1"))
831 (defun git-diff-file-mine ()
832 "Diff the marked unmerged file(s) against my pre-merge version."
834 (git-diff-unmerged-file "-2"))
836 (defun git-diff-file-other ()
837 "Diff the marked unmerged file(s) against the other's pre-merge version."
839 (git-diff-unmerged-file "-3"))
841 (defun git-diff-file-combined ()
842 "Do a combined diff of the marked unmerged file(s)."
844 (git-diff-unmerged-file "-c"))
846 (defun git-diff-file-idiff ()
847 "Perform an interactive diff on the current file."
849 (error "Interactive diffs not implemented yet."))
851 (defun git-log-file ()
852 "Display a log of changes to the marked file(s)."
854 (let* ((files (git-marked-files))
855 (coding-system-for-read git-commits-coding-system)
856 (buffer (apply #'git-run-command-buffer "*git-log*" "rev-list" "--pretty" "HEAD" "--" (git-get-filenames files))))
857 (with-current-buffer buffer
858 ; (git-log-mode) FIXME: implement log mode
859 (goto-char (point-min))
860 (setq buffer-read-only t))
861 (display-buffer buffer)))
863 (defun git-log-edit-files ()
864 "Return a list of marked files for use in the log-edit buffer."
865 (with-current-buffer log-edit-parent-buffer
866 (git-get-filenames (git-marked-files-state 'added 'deleted 'modified))))
868 (defun git-commit-file ()
869 "Commit the marked file(s), asking for a commit message."
871 (unless git-status (error "Not in git-status buffer."))
872 (let ((buffer (get-buffer-create "*git-commit*"))
873 (merge-heads (git-get-merge-heads))
874 (dir default-directory)
875 (sign-off git-append-signed-off-by))
876 (with-current-buffer buffer
877 (when (eq 0 (buffer-size))
882 (format "Author: %s <%s>\n%s"
883 (git-get-committer-name) (git-get-committer-email)
885 (format "Parent: %s\n%s\n"
886 (git-rev-parse "HEAD")
887 (mapconcat (lambda (str) (concat "Parent: " str)) merge-heads "\n"))
889 'face 'git-header-face)
890 (propertize git-log-msg-separator 'face 'git-separator-face)
892 (cond ((file-readable-p ".git/MERGE_MSG")
893 (insert-file-contents ".git/MERGE_MSG"))
895 (insert (format "\n\nSigned-off-by: %s <%s>\n"
896 (git-get-committer-name) (git-get-committer-email)))))))
897 (let ((log-edit-font-lock-keywords
898 `(("^\\(Author:\\|Date:\\|Parent:\\|Signed-off-by:\\)\\(.*\\)"
899 (1 font-lock-keyword-face)
900 (2 font-lock-function-name-face))
901 (,(concat "^\\(" (regexp-quote git-log-msg-separator) "\\)$")
902 (1 font-lock-comment-face)))))
903 (log-edit #'git-do-commit nil #'git-log-edit-files buffer)
904 (re-search-forward (regexp-quote (concat git-log-msg-separator "\n")) nil t))))
906 (defun git-find-file ()
907 "Visit the current file in its own buffer."
909 (unless git-status (error "Not in git-status buffer."))
910 (let ((info (ewoc-data (ewoc-locate git-status))))
911 (find-file (git-fileinfo->name info))
912 (when (eq 'unmerged (git-fileinfo->state info))
915 (defun git-find-file-other-window ()
916 "Visit the current file in its own buffer in another window."
918 (unless git-status (error "Not in git-status buffer."))
919 (let ((info (ewoc-data (ewoc-locate git-status))))
920 (find-file-other-window (git-fileinfo->name info))
921 (when (eq 'unmerged (git-fileinfo->state info))
924 (defun git-find-file-imerge ()
925 "Visit the current file in interactive merge mode."
927 (unless git-status (error "Not in git-status buffer."))
928 (let ((info (ewoc-data (ewoc-locate git-status))))
929 (find-file (git-fileinfo->name info))
932 (defun git-view-file ()
933 "View the current file in its own buffer."
935 (unless git-status (error "Not in git-status buffer."))
936 (let ((info (ewoc-data (ewoc-locate git-status))))
937 (view-file (git-fileinfo->name info))))
939 (defun git-refresh-status ()
940 "Refresh the git status buffer."
942 (let* ((status git-status)
943 (pos (ewoc-locate status))
944 (cur-name (and pos (git-fileinfo->name (ewoc-data pos)))))
945 (unless status (error "Not in git-status buffer."))
946 (git-clear-status status)
947 (git-run-command nil nil "update-index" "--info-only" "--refresh")
949 ; we need some special handling for an empty db
951 (git-run-command t nil "ls-files" "-z" "-t" "-c")
952 (git-parse-ls-files status 'added))
954 (git-run-command t nil "diff-index" "-z" "-M" "HEAD")
955 (git-parse-status status)))
957 (git-run-command t nil "ls-files" "-z" "-u")
958 (git-parse-ls-unmerged status))
959 (when (file-readable-p ".git/info/exclude")
961 (git-run-command t nil "ls-files" "-z" "-t" "-o"
962 "--exclude-from=.git/info/exclude"
963 (concat "--exclude-per-directory=" git-per-dir-ignore-file))
964 (git-parse-ls-files status 'unknown)))
966 (git-refresh-ewoc-hf status)
967 ; move point to the current file name if any
968 (let ((node (and cur-name (git-find-status-file status cur-name))))
969 (when node (ewoc-goto-node status node)))))
971 (defun git-status-quit ()
972 "Quit git-status mode."
977 ;;;; ------------------------------------------------------------
979 (defvar git-status-mode-hook nil
980 "Run after `git-status-mode' is setup.")
982 (defvar git-status-mode-map nil
983 "Keymap for git major mode.")
985 (defvar git-status nil
986 "List of all files managed by the git-status mode.")
988 (unless git-status-mode-map
989 (let ((map (make-keymap))
990 (diff-map (make-sparse-keymap)))
991 (suppress-keymap map)
992 (define-key map "?" 'git-help)
993 (define-key map "h" 'git-help)
994 (define-key map " " 'git-next-file)
995 (define-key map "a" 'git-add-file)
996 (define-key map "c" 'git-commit-file)
997 (define-key map "d" diff-map)
998 (define-key map "=" 'git-diff-file)
999 (define-key map "f" 'git-find-file)
1000 (define-key map "\r" 'git-find-file)
1001 (define-key map "g" 'git-refresh-status)
1002 (define-key map "i" 'git-ignore-file)
1003 (define-key map "l" 'git-log-file)
1004 (define-key map "m" 'git-mark-file)
1005 (define-key map "M" 'git-mark-all)
1006 (define-key map "n" 'git-next-file)
1007 (define-key map "N" 'git-next-unmerged-file)
1008 (define-key map "o" 'git-find-file-other-window)
1009 (define-key map "p" 'git-prev-file)
1010 (define-key map "P" 'git-prev-unmerged-file)
1011 (define-key map "q" 'git-status-quit)
1012 (define-key map "r" 'git-remove-file)
1013 (define-key map "R" 'git-resolve-file)
1014 (define-key map "T" 'git-toggle-all-marks)
1015 (define-key map "u" 'git-unmark-file)
1016 (define-key map "U" 'git-revert-file)
1017 (define-key map "v" 'git-view-file)
1018 (define-key map "x" 'git-remove-handled)
1019 (define-key map "\C-?" 'git-unmark-file-up)
1020 (define-key map "\M-\C-?" 'git-unmark-all)
1022 (define-key diff-map "b" 'git-diff-file-base)
1023 (define-key diff-map "c" 'git-diff-file-combined)
1024 (define-key diff-map "=" 'git-diff-file)
1025 (define-key diff-map "e" 'git-diff-file-idiff)
1026 (define-key diff-map "E" 'git-find-file-imerge)
1027 (define-key diff-map "h" 'git-diff-file-merge-head)
1028 (define-key diff-map "m" 'git-diff-file-mine)
1029 (define-key diff-map "o" 'git-diff-file-other)
1030 (setq git-status-mode-map map)))
1032 ;; git mode should only run in the *git status* buffer
1033 (put 'git-status-mode 'mode-class 'special)
1035 (defun git-status-mode ()
1036 "Major mode for interacting with Git.
1038 \\{git-status-mode-map}"
1039 (kill-all-local-variables)
1040 (buffer-disable-undo)
1041 (setq mode-name "git status"
1042 major-mode 'git-status-mode
1045 (use-local-map git-status-mode-map)
1046 (let ((buffer-read-only nil))
1048 (let ((status (ewoc-create 'git-fileinfo-prettyprint "" "")))
1049 (set (make-local-variable 'git-status) status))
1050 (set (make-local-variable 'list-buffers-directory) default-directory)
1051 (run-hooks 'git-status-mode-hook)))
1053 (defun git-find-status-buffer (dir)
1054 "Find the git status buffer handling a specified directory."
1055 (let ((list (buffer-list))
1056 (fulldir (expand-file-name dir))
1058 (while (and list (not found))
1059 (let ((buffer (car list)))
1060 (with-current-buffer buffer
1061 (when (and list-buffers-directory
1062 (string-equal fulldir (expand-file-name list-buffers-directory))
1063 (string-match "\\*git-status\\*$" (buffer-name buffer)))
1064 (setq found buffer))))
1065 (setq list (cdr list)))
1068 (defun git-status (dir)
1069 "Entry point into git-status mode."
1070 (interactive "DSelect directory: ")
1071 (setq dir (git-get-top-dir dir))
1072 (if (file-directory-p (concat (file-name-as-directory dir) ".git"))
1073 (let ((buffer (or (and git-reuse-status-buffer (git-find-status-buffer dir))
1074 (create-file-buffer (expand-file-name "*git-status*" dir)))))
1075 (switch-to-buffer buffer)
1078 (git-refresh-status)
1079 (goto-char (point-min)))
1080 (message "%s is not a git working tree." dir)))
1083 "Display help for Git mode."
1085 (describe-function 'git-status-mode))
1088 ;;; git.el ends here