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Diffstat (limited to 'contrib/emacs/vc-git.el')
| -rw-r--r-- | contrib/emacs/vc-git.el | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/contrib/emacs/vc-git.el b/contrib/emacs/vc-git.el deleted file mode 100644 index b8f6be5..0000000 --- a/contrib/emacs/vc-git.el +++ /dev/null @@ -1,216 +0,0 @@ -;;; vc-git.el --- VC backend for the git version control system - -;; Copyright (C) 2006 Alexandre Julliard - -;; This program is free software; you can redistribute it and/or -;; modify it under the terms of the GNU General Public License as -;; published by the Free Software Foundation; either version 2 of -;; the License, or (at your option) any later version. -;; -;; This program is distributed in the hope that it will be -;; useful, but WITHOUT ANY WARRANTY; without even the implied -;; warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR -;; PURPOSE. See the GNU General Public License for more details. -;; -;; You should have received a copy of the GNU General Public -;; License along with this program; if not, write to the Free -;; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, -;; MA 02111-1307 USA - -;;; Commentary: - -;; This file contains a VC backend for the git version control -;; system. -;; -;; To install: put this file on the load-path and add GIT to the list -;; of supported backends in `vc-handled-backends'; the following line, -;; placed in your ~/.emacs, will accomplish this: -;; -;; (add-to-list 'vc-handled-backends 'GIT) -;; -;; TODO -;; - changelog generation -;; - working with revisions other than HEAD -;; - -(eval-when-compile (require 'cl)) - -(defvar git-commits-coding-system 'utf-8 - "Default coding system for git commits.") - -(defun vc-git--run-command-string (file &rest args) - "Run a git command on FILE and return its output as string." - (let* ((ok t) - (str (with-output-to-string - (with-current-buffer standard-output - (unless (eq 0 (apply #'call-process "git" nil '(t nil) nil - (append args (list (file-relative-name file))))) - (setq ok nil)))))) - (and ok str))) - -(defun vc-git--run-command (file &rest args) - "Run a git command on FILE, discarding any output." - (let ((name (file-relative-name file))) - (eq 0 (apply #'call-process "git" nil (get-buffer "*Messages") nil (append args (list name)))))) - -(defun vc-git-registered (file) - "Check whether FILE is registered with git." - (with-temp-buffer - (let* ((dir (file-name-directory file)) - (name (file-relative-name file dir))) - (and (ignore-errors - (when dir (cd dir)) - (eq 0 (call-process "git" nil '(t nil) nil "ls-files" "-c" "-z" "--" name))) - (let ((str (buffer-string))) - (and (> (length str) (length name)) - (string= (substring str 0 (1+ (length name))) (concat name "\0")))))))) - -(defun vc-git-state (file) - "git-specific version of `vc-state'." - (let ((diff (vc-git--run-command-string file "diff-index" "-z" "HEAD" "--"))) - (if (and diff (string-match ":[0-7]\\{6\\} [0-7]\\{6\\} [0-9a-f]\\{40\\} [0-9a-f]\\{40\\} [ADMU]\0[^\0]+\0" diff)) - 'edited - 'up-to-date))) - -(defun vc-git-workfile-version (file) - "git-specific version of `vc-workfile-version'." - (let ((str (with-output-to-string - (with-current-buffer standard-output - (call-process "git" nil '(t nil) nil "symbolic-ref" "HEAD"))))) - (if (string-match "^\\(refs/heads/\\)?\\(.+\\)$" str) - (match-string 2 str) - str))) - -(defun vc-git-symbolic-commit (commit) - "Translate COMMIT string into symbolic form. -Returns nil if not possible." - (and commit - (with-temp-buffer - (and - (zerop - (call-process "git" nil '(t nil) nil "name-rev" - "--name-only" "--tags" - commit)) - (goto-char (point-min)) - (= (forward-line 2) 1) - (bolp) - (buffer-substring-no-properties (point-min) (1- (point-max))))))) - -(defun vc-git-previous-version (file rev) - "git-specific version of `vc-previous-version'." - (let ((default-directory (file-name-directory (expand-file-name file))) - (file (file-name-nondirectory file))) - (vc-git-symbolic-commit - (with-temp-buffer - (and - (zerop - (call-process "git" nil '(t nil) nil "rev-list" - "-2" rev "--" file)) - (goto-char (point-max)) - (bolp) - (zerop (forward-line -1)) - (not (bobp)) - (buffer-substring-no-properties - (point) - (1- (point-max)))))))) - -(defun vc-git-next-version (file rev) - "git-specific version of `vc-next-version'." - (let* ((default-directory (file-name-directory - (expand-file-name file))) - (file (file-name-nondirectory file)) - (current-rev - (with-temp-buffer - (and - (zerop - (call-process "git" nil '(t nil) nil "rev-list" - "-1" rev "--" file)) - (goto-char (point-max)) - (bolp) - (zerop (forward-line -1)) - (bobp) - (buffer-substring-no-properties - (point) - (1- (point-max))))))) - (and current-rev - (vc-git-symbolic-commit - (with-temp-buffer - (and - (zerop - (call-process "git" nil '(t nil) nil "rev-list" - "HEAD" "--" file)) - (goto-char (point-min)) - (search-forward current-rev nil t) - (zerop (forward-line -1)) - (buffer-substring-no-properties - (point) - (progn (forward-line 1) (1- (point)))))))))) - -(defun vc-git-revert (file &optional contents-done) - "Revert FILE to the version stored in the git repository." - (if contents-done - (vc-git--run-command file "update-index" "--") - (vc-git--run-command file "checkout" "HEAD"))) - -(defun vc-git-checkout-model (file) - 'implicit) - -(defun vc-git-workfile-unchanged-p (file) - (let ((sha1 (vc-git--run-command-string file "hash-object" "--")) - (head (vc-git--run-command-string file "ls-tree" "-z" "HEAD" "--"))) - (and head - (string-match "[0-7]\\{6\\} blob \\([0-9a-f]\\{40\\}\\)\t[^\0]+\0" head) - (string= (car (split-string sha1 "\n")) (match-string 1 head))))) - -(defun vc-git-register (file &optional rev comment) - "Register FILE into the git version-control system." - (vc-git--run-command file "update-index" "--add" "--")) - -(defun vc-git-print-log (file &optional buffer) - (let ((name (file-relative-name file)) - (coding-system-for-read git-commits-coding-system)) - (vc-do-command buffer 'async "git" name "rev-list" "--pretty" "HEAD" "--"))) - -(defun vc-git-diff (file &optional rev1 rev2 buffer) - (let ((name (file-relative-name file)) - (buf (or buffer "*vc-diff*"))) - (if (and rev1 rev2) - (vc-do-command buf 0 "git" name "diff-tree" "-p" rev1 rev2 "--") - (vc-do-command buf 0 "git" name "diff-index" "-p" (or rev1 "HEAD") "--")) - ; git-diff-index doesn't set exit status like diff does - (if (vc-git-workfile-unchanged-p file) 0 1))) - -(defun vc-git-checkin (file rev comment) - (let ((coding-system-for-write git-commits-coding-system)) - (vc-git--run-command file "commit" "-m" comment "--only" "--"))) - -(defun vc-git-checkout (file &optional editable rev destfile) - (if destfile - (let ((fullname (substring - (vc-git--run-command-string file "ls-files" "-z" "--full-name" "--") - 0 -1)) - (coding-system-for-read 'no-conversion) - (coding-system-for-write 'no-conversion)) - (with-temp-file destfile - (eq 0 (call-process "git" nil t nil "cat-file" "blob" - (concat (or rev "HEAD") ":" fullname))))) - (vc-git--run-command file "checkout" (or rev "HEAD")))) - -(defun vc-git-annotate-command (file buf &optional rev) - ; FIXME: rev is ignored - (let ((name (file-relative-name file))) - (call-process "git" nil buf nil "blame" name))) - -(defun vc-git-annotate-time () - (and (re-search-forward "[0-9a-f]+ (.* \\([0-9]+\\)-\\([0-9]+\\)-\\([0-9]+\\) \\([0-9]+\\):\\([0-9]+\\):\\([0-9]+\\) \\([-+0-9]+\\) +[0-9]+)" nil t) - (vc-annotate-convert-time - (apply #'encode-time (mapcar (lambda (match) (string-to-number (match-string match))) '(6 5 4 3 2 1 7)))))) - -;; Not really useful since we can't do anything with the revision yet -;;(defun vc-annotate-extract-revision-at-line () -;; (save-excursion -;; (move-beginning-of-line 1) -;; (and (looking-at "[0-9a-f]+") -;; (buffer-substring (match-beginning 0) (match-end 0))))) - -(provide 'vc-git) |