summaryrefslogtreecommitdiff
path: root/contrib/emacs
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/emacs')
-rw-r--r--contrib/emacs/.gitignore1
-rw-r--r--contrib/emacs/Makefile20
-rw-r--r--contrib/emacs/git-blame.el380
-rw-r--r--contrib/emacs/git.el1152
-rw-r--r--contrib/emacs/vc-git.el151
5 files changed, 1704 insertions, 0 deletions
diff --git a/contrib/emacs/.gitignore b/contrib/emacs/.gitignore
new file mode 100644
index 0000000000..c531d9867f
--- /dev/null
+++ b/contrib/emacs/.gitignore
@@ -0,0 +1 @@
+*.elc
diff --git a/contrib/emacs/Makefile b/contrib/emacs/Makefile
new file mode 100644
index 0000000000..350846de90
--- /dev/null
+++ b/contrib/emacs/Makefile
@@ -0,0 +1,20 @@
+## Build and install stuff
+
+EMACS = emacs
+
+ELC = git.elc vc-git.elc
+INSTALL ?= install
+INSTALL_ELC = $(INSTALL) -m 644
+prefix ?= $(HOME)
+emacsdir = $(prefix)/share/emacs/site-lisp
+
+all: $(ELC)
+
+install: all
+ $(INSTALL) -d $(emacsdir)
+ $(INSTALL_ELC) $(ELC) $(emacsdir)
+
+%.elc: %.el
+ $(EMACS) --batch --eval '(byte-compile-file "$<")'
+
+clean:; rm -f $(ELC)
diff --git a/contrib/emacs/git-blame.el b/contrib/emacs/git-blame.el
new file mode 100644
index 0000000000..64ad50b327
--- /dev/null
+++ b/contrib/emacs/git-blame.el
@@ -0,0 +1,380 @@
+;;; git-blame.el --- Minor mode for incremental blame for Git -*- coding: utf-8 -*-
+;;
+;; Copyright (C) 2007 David Kågedal
+;;
+;; Authors: David Kågedal <davidk@lysator.liu.se>
+;; Created: 31 Jan 2007
+;; Message-ID: <87iren2vqx.fsf@morpheus.local>
+;; License: GPL
+;; Keywords: git, version control, release management
+;;
+;; Compatibility: Emacs21
+
+
+;; This file is *NOT* part of GNU Emacs.
+;; This file is distributed under the same terms as GNU Emacs.
+
+;; 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
+
+;; http://www.fsf.org/copyleft/gpl.html
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;;; Commentary:
+;;
+;; Here is an Emacs implementation of incremental git-blame. When you
+;; turn it on while viewing a file, the editor buffer will be updated by
+;; setting the background of individual lines to a color that reflects
+;; which commit it comes from. And when you move around the buffer, a
+;; one-line summary will be shown in the echo area.
+
+;;; Installation:
+;;
+;; To use this package, put it somewhere in `load-path' (or add
+;; directory with git-blame.el to `load-path'), and add the following
+;; line to your .emacs:
+;;
+;; (require 'git-blame)
+;;
+;; If you do not want to load this package before it is necessary, you
+;; can make use of the `autoload' feature, e.g. by adding to your .emacs
+;; the following lines
+;;
+;; (autoload 'git-blame-mode "git-blame"
+;; "Minor mode for incremental blame for Git." t)
+;;
+;; Then first use of `M-x git-blame-mode' would load the package.
+
+;;; Compatibility:
+;;
+;; It requires GNU Emacs 21. If you'are using Emacs 20, try
+;; changing this:
+;;
+;; (overlay-put ovl 'face (list :background
+;; (cdr (assq 'color (cddddr info)))))
+;;
+;; to
+;;
+;; (overlay-put ovl 'face (cons 'background-color
+;; (cdr (assq 'color (cddddr info)))))
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;;; Code:
+
+(require 'cl) ; to use `push', `pop'
+
+(defun color-scale (l)
+ (let* ((colors ())
+ r g b)
+ (setq r l)
+ (while r
+ (setq g l)
+ (while g
+ (setq b l)
+ (while b
+ (push (concat "#" (car r) (car g) (car b)) colors)
+ (pop b))
+ (pop g))
+ (pop r))
+ colors))
+
+(defvar git-blame-dark-colors
+ (color-scale '("0c" "04" "24" "1c" "2c" "34" "14" "3c")))
+
+(defvar git-blame-light-colors
+ (color-scale '("c4" "d4" "cc" "dc" "f4" "e4" "fc" "ec")))
+
+(defvar git-blame-ancient-color "dark green")
+
+(defvar git-blame-autoupdate t
+ "*Automatically update the blame display while editing")
+
+(defvar git-blame-proc nil
+ "The running git-blame process")
+(make-variable-buffer-local 'git-blame-proc)
+
+(defvar git-blame-overlays nil
+ "The git-blame overlays used in the current buffer.")
+(make-variable-buffer-local 'git-blame-overlays)
+
+(defvar git-blame-cache nil
+ "A cache of git-blame information for the current buffer")
+(make-variable-buffer-local 'git-blame-cache)
+
+(defvar git-blame-idle-timer nil
+ "An idle timer that updates the blame")
+(make-variable-buffer-local 'git-blame-cache)
+
+(defvar git-blame-update-queue nil
+ "A queue of update requests")
+(make-variable-buffer-local 'git-blame-update-queue)
+
+(defvar git-blame-mode nil)
+(make-variable-buffer-local 'git-blame-mode)
+(unless (assq 'git-blame-mode minor-mode-alist)
+ (setq minor-mode-alist
+ (cons (list 'git-blame-mode " blame")
+ minor-mode-alist)))
+
+;;;###autoload
+(defun git-blame-mode (&optional arg)
+ "Minor mode for displaying Git blame"
+ (interactive "P")
+ (if arg
+ (setq git-blame-mode (eq arg 1))
+ (setq git-blame-mode (not git-blame-mode)))
+ (make-local-variable 'git-blame-colors)
+ (if git-blame-autoupdate
+ (add-hook 'after-change-functions 'git-blame-after-change nil t)
+ (remove-hook 'after-change-functions 'git-blame-after-change t))
+ (git-blame-cleanup)
+ (if git-blame-mode
+ (progn
+ (let ((bgmode (cdr (assoc 'background-mode (frame-parameters)))))
+ (if (eq bgmode 'dark)
+ (setq git-blame-colors git-blame-dark-colors)
+ (setq git-blame-colors git-blame-light-colors)))
+ (setq git-blame-cache (make-hash-table :test 'equal))
+ (git-blame-run))
+ (cancel-timer git-blame-idle-timer)))
+
+;;;###autoload
+(defun git-reblame ()
+ "Recalculate all blame information in the current buffer"
+ (unless git-blame-mode
+ (error "git-blame is not active"))
+ (interactive)
+ (git-blame-cleanup)
+ (git-blame-run))
+
+(defun git-blame-run (&optional startline endline)
+ (if git-blame-proc
+ ;; Should maybe queue up a new run here
+ (message "Already running git blame")
+ (let ((display-buf (current-buffer))
+ (blame-buf (get-buffer-create
+ (concat " git blame for " (buffer-name))))
+ (args '("--incremental" "--contents" "-")))
+ (if startline
+ (setq args (append args
+ (list "-L" (format "%d,%d" startline endline)))))
+ (setq args (append args
+ (list (file-name-nondirectory buffer-file-name))))
+ (setq git-blame-proc
+ (apply 'start-process
+ "git-blame" blame-buf
+ "git" "blame"
+ args))
+ (with-current-buffer blame-buf
+ (erase-buffer)
+ (make-local-variable 'git-blame-file)
+ (make-local-variable 'git-blame-current)
+ (setq git-blame-file display-buf)
+ (setq git-blame-current nil))
+ (set-process-filter git-blame-proc 'git-blame-filter)
+ (set-process-sentinel git-blame-proc 'git-blame-sentinel)
+ (process-send-region git-blame-proc (point-min) (point-max))
+ (process-send-eof git-blame-proc))))
+
+(defun remove-git-blame-text-properties (start end)
+ (let ((modified (buffer-modified-p))
+ (inhibit-read-only t))
+ (remove-text-properties start end '(point-entered nil))
+ (set-buffer-modified-p modified)))
+
+(defun git-blame-cleanup ()
+ "Remove all blame properties"
+ (mapcar 'delete-overlay git-blame-overlays)
+ (setq git-blame-overlays nil)
+ (remove-git-blame-text-properties (point-min) (point-max)))
+
+(defun git-blame-update-region (start end)
+ "Rerun blame to get updates between START and END"
+ (let ((overlays (overlays-in start end)))
+ (while overlays
+ (let ((overlay (pop overlays)))
+ (if (< (overlay-start overlay) start)
+ (setq start (overlay-start overlay)))
+ (if (> (overlay-end overlay) end)
+ (setq end (overlay-end overlay)))
+ (setq git-blame-overlays (delete overlay git-blame-overlays))
+ (delete-overlay overlay))))
+ (remove-git-blame-text-properties start end)
+ ;; We can be sure that start and end are at line breaks
+ (git-blame-run (1+ (count-lines (point-min) start))
+ (count-lines (point-min) end)))
+
+(defun git-blame-sentinel (proc status)
+ (with-current-buffer (process-buffer proc)
+ (with-current-buffer git-blame-file
+ (setq git-blame-proc nil)
+ (if git-blame-update-queue
+ (git-blame-delayed-update))))
+ ;;(kill-buffer (process-buffer proc))
+ ;;(message "git blame finished")
+ )
+
+(defvar in-blame-filter nil)
+
+(defun git-blame-filter (proc str)
+ (save-excursion
+ (set-buffer (process-buffer proc))
+ (goto-char (process-mark proc))
+ (insert-before-markers str)
+ (goto-char 0)
+ (unless in-blame-filter
+ (let ((more t)
+ (in-blame-filter t))
+ (while more
+ (setq more (git-blame-parse)))))))
+
+(defun git-blame-parse ()
+ (cond ((looking-at "\\([0-9a-f]\\{40\\}\\) \\([0-9]+\\) \\([0-9]+\\) \\([0-9]+\\)\n")
+ (let ((hash (match-string 1))
+ (src-line (string-to-number (match-string 2)))
+ (res-line (string-to-number (match-string 3)))
+ (num-lines (string-to-number (match-string 4))))
+ (setq git-blame-current
+ (if (string= hash "0000000000000000000000000000000000000000")
+ nil
+ (git-blame-new-commit
+ hash src-line res-line num-lines))))
+ (delete-region (point) (match-end 0))
+ t)
+ ((looking-at "filename \\(.+\\)\n")
+ (let ((filename (match-string 1)))
+ (git-blame-add-info "filename" filename))
+ (delete-region (point) (match-end 0))
+ t)
+ ((looking-at "\\([a-z-]+\\) \\(.+\\)\n")
+ (let ((key (match-string 1))
+ (value (match-string 2)))
+ (git-blame-add-info key value))
+ (delete-region (point) (match-end 0))
+ t)
+ ((looking-at "boundary\n")
+ (setq git-blame-current nil)
+ (delete-region (point) (match-end 0))
+ t)
+ (t
+ nil)))
+
+
+(defun git-blame-new-commit (hash src-line res-line num-lines)
+ (save-excursion
+ (set-buffer git-blame-file)
+ (let ((info (gethash hash git-blame-cache))
+ (inhibit-point-motion-hooks t)
+ (inhibit-modification-hooks t))
+ (when (not info)
+ (let ((color (pop git-blame-colors)))
+ (unless color
+ (setq color git-blame-ancient-color))
+ (setq info (list hash src-line res-line num-lines
+ (git-describe-commit hash)
+ (cons 'color color))))
+ (puthash hash info git-blame-cache))
+ (goto-line res-line)
+ (while (> num-lines 0)
+ (if (get-text-property (point) 'git-blame)
+ (forward-line)
+ (let* ((start (point))
+ (end (progn (forward-line 1) (point)))
+ (ovl (make-overlay start end)))
+ (push ovl git-blame-overlays)
+ (overlay-put ovl 'git-blame info)
+ (overlay-put ovl 'help-echo hash)
+ (overlay-put ovl 'face (list :background
+ (cdr (assq 'color (nthcdr 5 info)))))
+ ;; the point-entered property doesn't seem to work in overlays
+ ;;(overlay-put ovl 'point-entered
+ ;; `(lambda (x y) (git-blame-identify ,hash)))
+ (let ((modified (buffer-modified-p)))
+ (put-text-property (if (= start 1) start (1- start)) (1- end)
+ 'point-entered
+ `(lambda (x y) (git-blame-identify ,hash)))
+ (set-buffer-modified-p modified))))
+ (setq num-lines (1- num-lines))))))
+
+(defun git-blame-add-info (key value)
+ (if git-blame-current
+ (nconc git-blame-current (list (cons (intern key) value)))))
+
+(defun git-blame-current-commit ()
+ (let ((info (get-char-property (point) 'git-blame)))
+ (if info
+ (car info)
+ (error "No commit info"))))
+
+(defun git-describe-commit (hash)
+ (with-temp-buffer
+ (call-process "git" nil t nil
+ "log" "-1" "--pretty=oneline"
+ hash)
+ (buffer-substring (point-min) (1- (point-max)))))
+
+(defvar git-blame-last-identification nil)
+(make-variable-buffer-local 'git-blame-last-identification)
+(defun git-blame-identify (&optional hash)
+ (interactive)
+ (let ((info (gethash (or hash (git-blame-current-commit)) git-blame-cache)))
+ (when (and info (not (eq info git-blame-last-identification)))
+ (message "%s" (nth 4 info))
+ (setq git-blame-last-identification info))))
+
+;; (defun git-blame-after-save ()
+;; (when git-blame-mode
+;; (git-blame-cleanup)
+;; (git-blame-run)))
+;; (add-hook 'after-save-hook 'git-blame-after-save)
+
+(defun git-blame-after-change (start end length)
+ (when git-blame-mode
+ (git-blame-enq-update start end)))
+
+(defvar git-blame-last-update nil)
+(make-variable-buffer-local 'git-blame-last-update)
+(defun git-blame-enq-update (start end)
+ "Mark the region between START and END as needing blame update"
+ ;; Try to be smart and avoid multiple callouts for sequential
+ ;; editing
+ (cond ((and git-blame-last-update
+ (= start (cdr git-blame-last-update)))
+ (setcdr git-blame-last-update end))
+ ((and git-blame-last-update
+ (= end (car git-blame-last-update)))
+ (setcar git-blame-last-update start))
+ (t
+ (setq git-blame-last-update (cons start end))
+ (setq git-blame-update-queue (nconc git-blame-update-queue
+ (list git-blame-last-update)))))
+ (unless (or git-blame-proc git-blame-idle-timer)
+ (setq git-blame-idle-timer
+ (run-with-idle-timer 0.5 nil 'git-blame-delayed-update))))
+
+(defun git-blame-delayed-update ()
+ (setq git-blame-idle-timer nil)
+ (if git-blame-update-queue
+ (let ((first (pop git-blame-update-queue))
+ (inhibit-point-motion-hooks t))
+ (git-blame-update-region (car first) (cdr first)))))
+
+(provide 'git-blame)
+
+;;; git-blame.el ends here
diff --git a/contrib/emacs/git.el b/contrib/emacs/git.el
new file mode 100644
index 0000000000..db87a37895
--- /dev/null
+++ b/contrib/emacs/git.el
@@ -0,0 +1,1152 @@
+;;; git.el --- A user interface for git
+
+;; Copyright (C) 2005, 2006 Alexandre Julliard <julliard@winehq.org>
+
+;; Version: 1.0
+
+;; 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 an interface for the git version control
+;; system. It provides easy access to the most frequently used git
+;; commands. The user interface is as far as possible identical to
+;; that of the PCL-CVS mode.
+;;
+;; To install: put this file on the load-path and place the following
+;; in your .emacs file:
+;;
+;; (require 'git)
+;;
+;; To start: `M-x git-status'
+;;
+;; TODO
+;; - portability to XEmacs
+;; - better handling of subprocess errors
+;; - hook into file save (after-save-hook)
+;; - diff against other branch
+;; - renaming files from the status buffer
+;; - creating tags
+;; - fetch/pull
+;; - switching branches
+;; - revlist browser
+;; - git-show-branch browser
+;; - menus
+;;
+
+(eval-when-compile (require 'cl))
+(require 'ewoc)
+(require 'log-edit)
+
+
+;;;; Customizations
+;;;; ------------------------------------------------------------
+
+(defgroup git nil
+ "A user interface for the git versioning system."
+ :group 'tools)
+
+(defcustom git-committer-name nil
+ "User name to use for commits.
+The default is to fall back to the repository config,
+then to `add-log-full-name' and then to `user-full-name'."
+ :group 'git
+ :type '(choice (const :tag "Default" nil)
+ (string :tag "Name")))
+
+(defcustom git-committer-email nil
+ "Email address to use for commits.
+The default is to fall back to the git repository config,
+then to `add-log-mailing-address' and then to `user-mail-address'."
+ :group 'git
+ :type '(choice (const :tag "Default" nil)
+ (string :tag "Email")))
+
+(defcustom git-commits-coding-system nil
+ "Default coding system for the log message of git commits."
+ :group 'git
+ :type '(choice (const :tag "From repository config" nil)
+ (coding-system)))
+
+(defcustom git-append-signed-off-by nil
+ "Whether to append a Signed-off-by line to the commit message before editing."
+ :group 'git
+ :type 'boolean)
+
+(defcustom git-reuse-status-buffer t
+ "Whether `git-status' should try to reuse an existing buffer
+if there is already one that displays the same directory."
+ :group 'git
+ :type 'boolean)
+
+(defcustom git-per-dir-ignore-file ".gitignore"
+ "Name of the per-directory ignore file."
+ :group 'git
+ :type 'string)
+
+
+(defface git-status-face
+ '((((class color) (background light)) (:foreground "purple")))
+ "Git mode face used to highlight added and modified files."
+ :group 'git)
+
+(defface git-unmerged-face
+ '((((class color) (background light)) (:foreground "red" :bold t)))
+ "Git mode face used to highlight unmerged files."
+ :group 'git)
+
+(defface git-unknown-face
+ '((((class color) (background light)) (:foreground "goldenrod" :bold t)))
+ "Git mode face used to highlight unknown files."
+ :group 'git)
+
+(defface git-uptodate-face
+ '((((class color) (background light)) (:foreground "grey60")))
+ "Git mode face used to highlight up-to-date files."
+ :group 'git)
+
+(defface git-ignored-face
+ '((((class color) (background light)) (:foreground "grey60")))
+ "Git mode face used to highlight ignored files."
+ :group 'git)
+
+(defface git-mark-face
+ '((((class color) (background light)) (:foreground "red" :bold t)))
+ "Git mode face used for the file marks."
+ :group 'git)
+
+(defface git-header-face
+ '((((class color) (background light)) (:foreground "blue")))
+ "Git mode face used for commit headers."
+ :group 'git)
+
+(defface git-separator-face
+ '((((class color) (background light)) (:foreground "brown")))
+ "Git mode face used for commit separator."
+ :group 'git)
+
+(defface git-permission-face
+ '((((class color) (background light)) (:foreground "green" :bold t)))
+ "Git mode face used for permission changes."
+ :group 'git)
+
+
+;;;; Utilities
+;;;; ------------------------------------------------------------
+
+(defconst git-log-msg-separator "--- log message follows this line ---")
+
+(defvar git-log-edit-font-lock-keywords
+ `(("^\\(Author:\\|Date:\\|Parent:\\|Signed-off-by:\\)\\(.*\\)$"
+ (1 font-lock-keyword-face)
+ (2 font-lock-function-name-face))
+ (,(concat "^\\(" (regexp-quote git-log-msg-separator) "\\)$")
+ (1 font-lock-comment-face))))
+
+(defun git-get-env-strings (env)
+ "Build a list of NAME=VALUE strings from a list of environment strings."
+ (mapcar (lambda (entry) (concat (car entry) "=" (cdr entry))) env))
+
+(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))
+ (apply #'call-process "git" nil buffer nil args)))
+
+(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."
+ (with-temp-buffer
+ (and (eq 0 (apply #' git-call-process-env t env args))
+ (buffer-string))))
+
+(defun git-run-process-region (buffer start end program args)
+ "Run a git process with a buffer region as input."
+ (let ((output-buffer (current-buffer))
+ (dir default-directory))
+ (with-current-buffer buffer
+ (cd dir)
+ (apply #'call-process-region start end program
+ nil (list output-buffer nil) nil args))))
+
+(defun git-run-command-buffer (buffer-name &rest args)
+ "Run a git command, sending the output to a buffer named BUFFER-NAME."
+ (let ((dir default-directory)
+ (buffer (get-buffer-create buffer-name)))
+ (message "Running git %s..." (car args))
+ (with-current-buffer buffer
+ (let ((default-directory dir)
+ (buffer-read-only nil))
+ (erase-buffer)
+ (apply #'git-call-process-env buffer nil args)))
+ (message "Running git %s...done" (car args))
+ buffer))
+
+(defun git-run-command (buffer env &rest args)
+ (message "Running git %s..." (car args))
+ (apply #'git-call-process-env buffer env args)
+ (message "Running git %s...done" (car args)))
+
+(defun git-run-command-region (buffer start end env &rest args)
+ "Run a git command with specified buffer region as input."
+ (message "Running git %s..." (car args))
+ (unless (eq 0 (if env
+ (git-run-process-region
+ buffer start end "env"
+ (append (git-get-env-strings env) (list "git") args))
+ (git-run-process-region
+ buffer start end "git" args)))
+ (error "Failed to run \"git %s\":\n%s" (mapconcat (lambda (x) x) args " ") (buffer-string)))
+ (message "Running git %s...done" (car args)))
+
+(defun git-get-string-sha1 (string)
+ "Read a SHA1 from the specified string."
+ (and string
+ (string-match "[0-9a-f]\\{40\\}" string)
+ (match-string 0 string)))
+
+(defun git-get-committer-name ()
+ "Return the name to use as GIT_COMMITTER_NAME."
+ ; copied from log-edit
+ (or git-committer-name
+ (git-config "user.name")
+ (and (boundp 'add-log-full-name) add-log-full-name)
+ (and (fboundp 'user-full-name) (user-full-name))
+ (and (boundp 'user-full-name) user-full-name)))
+
+(defun git-get-committer-email ()
+ "Return the email address to use as GIT_COMMITTER_EMAIL."
+ ; copied from log-edit
+ (or git-committer-email
+ (git-config "user.email")
+ (and (boundp 'add-log-mailing-address) add-log-mailing-address)
+ (and (fboundp 'user-mail-address) (user-mail-address))
+ (and (boundp 'user-mail-address) user-mail-address)))
+
+(defun git-get-commits-coding-system ()
+ "Return the coding system to use for commits."
+ (let ((repo-config (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)
+ (concat "\""
+ (mapconcat (lambda (c)
+ (case c
+ (?\n "\\n")
+ (?\t "\\t")
+ (?\\ "\\\\")
+ (?\" "\\\"")
+ (t (char-to-string c))))
+ name "")
+ "\"")
+ name))
+
+(defun git-get-top-dir (dir)
+ "Retrieve the top-level directory of a git tree."
+ (let ((cdup (with-output-to-string
+ (with-current-buffer standard-output
+ (cd dir)
+ (unless (eq 0 (call-process "git" nil t nil "rev-parse" "--show-cdup"))
+ (error "cannot find top-level git tree for %s." dir))))))
+ (expand-file-name (concat (file-name-as-directory dir)
+ (car (split-string cdup "\n"))))))
+
+;stolen from pcl-cvs
+(defun git-append-to-ignore (file)
+ "Add a file name to the ignore file in its directory."
+ (let* ((fullname (expand-file-name file))
+ (dir (file-name-directory fullname))
+ (name (file-name-nondirectory fullname))
+ (ignore-name (expand-file-name git-per-dir-ignore-file dir))
+ (created (not (file-exists-p ignore-name))))
+ (save-window-excursion
+ (set-buffer (find-file-noselect ignore-name))
+ (goto-char (point-max))
+ (unless (zerop (current-column)) (insert "\n"))
+ (insert "/" name "\n")
+ (sort-lines nil (point-min) (point-max))
+ (save-buffer))
+ (when created
+ (git-run-command nil nil "update-index" "--info-only" "--add" "--" (file-relative-name ignore-name)))
+ (git-add-status-file (if created 'added 'modified) (file-relative-name ignore-name))))
+
+; propertize definition for XEmacs, stolen from erc-compat
+(eval-when-compile
+ (unless (fboundp 'propertize)
+ (defun propertize (string &rest props)
+ (let ((string (copy-sequence string)))
+ (while props
+ (put-text-property 0 (length string) (nth 0 props) (nth 1 props) string)
+ (setq props (cddr props)))
+ string))))
+
+;;;; Wrappers for basic git commands
+;;;; ------------------------------------------------------------
+
+(defun git-rev-parse (rev)
+ "Parse a revision name and return its SHA1."
+ (git-get-string-sha1
+ (git-call-process-env-string nil "rev-parse" rev)))
+
+(defun git-config (key)
+ "Retrieve the value associated to KEY in the git repository config file."
+ (let ((str (git-call-process-env-string nil "config" key)))
+ (and str (car (split-string str "\n")))))
+
+(defun git-symbolic-ref (ref)
+ "Wrapper for the git-symbolic-ref command."
+ (let ((str (git-call-process-env-string nil "symbolic-ref" ref)))
+ (and str (car (split-string str "\n")))))
+
+(defun git-update-ref (ref val &optional oldval)
+ "Update a reference by calling git-update-ref."
+ (apply #'git-call-process-env nil nil "update-ref" ref val (if oldval (list oldval))))
+
+(defun git-read-tree (tree &optional index-file)
+ "Read a tree into the index file."
+ (apply #'git-call-process-env nil
+ (if index-file `(("GIT_INDEX_FILE" . ,index-file)) nil)
+ "read-tree" (if tree (list tree))))
+
+(defun git-write-tree (&optional index-file)
+ "Call git-write-tree and return the resulting tree SHA1 as a string."
+ (git-get-string-sha1
+ (git-call-process-env-string (and index-file `(("GIT_INDEX_FILE" . ,index-file))) "write-tree")))
+
+(defun git-commit-tree (buffer tree head)
+ "Call git-commit-tree with buffer as input and return the resulting commit SHA1."
+ (let ((author-name (git-get-committer-name))
+ (author-email (git-get-committer-email))
+ author-date log-start log-end args coding-system-for-write)
+ (when head
+ (push "-p" args)
+ (push head args))
+ (with-current-buffer buffer
+ (goto-char (point-min))
+ (if
+ (setq log-start (re-search-forward (concat "^" (regexp-quote git-log-msg-separator) "\n") nil t))
+ (save-restriction
+ (narrow-to-region (point-min) log-start)
+ (goto-char (point-min))
+ (when (re-search-forward "^Author: +\\(.*?\\) *<\\(.*\\)> *$" nil t)
+ (setq author-name (match-string 1)
+ author-email (match-string 2)))
+ (goto-char (point-min))
+ (when (re-search-forward "^Date: +\\(.*\\)$" nil t)
+ (setq author-date (match-string 1)))
+ (goto-char (point-min))
+ (while (re-search-forward "^Parent: +\\([0-9a-f]+\\)" nil t)
+ (unless (string-equal head (match-string 1))
+ (push "-p" args)
+ (push (match-string 1) args))))
+ (setq log-start (point-min)))
+ (setq log-end (point-max))
+ (setq coding-system-for-write buffer-file-coding-system))
+ (git-get-string-sha1
+ (with-output-to-string
+ (with-current-buffer standard-output
+ (let ((env `(("GIT_AUTHOR_NAME" . ,author-name)
+ ("GIT_AUTHOR_EMAIL" . ,author-email)
+ ("GIT_COMMITTER_NAME" . ,(git-get-committer-name))
+ ("GIT_COMMITTER_EMAIL" . ,(git-get-committer-email)))))
+ (when author-date (push `("GIT_AUTHOR_DATE" . ,author-date) env))
+ (apply #'git-run-command-region
+ buffer log-start log-end env
+ "commit-tree" tree (nreverse args))))))))
+
+(defun git-empty-db-p ()
+ "Check if the git db is empty (no commit done yet)."
+ (not (eq 0 (call-process "git" nil nil nil "rev-parse" "--verify" "HEAD"))))
+
+(defun git-get-merge-heads ()
+ "Retrieve the merge heads from the MERGE_HEAD file if present."
+ (let (heads)
+ (when (file-readable-p ".git/MERGE_HEAD")
+ (with-temp-buffer
+ (insert-file-contents ".git/MERGE_HEAD" nil nil nil t)
+ (goto-char (point-min))
+ (while (re-search-forward "[0-9a-f]\\{40\\}" nil t)
+ (push (match-string 0) heads))))
+ (nreverse heads)))
+
+;;;; File info structure
+;;;; ------------------------------------------------------------
+
+; fileinfo structure stolen from pcl-cvs
+(defstruct (git-fileinfo
+ (:copier nil)
+ (:constructor git-create-fileinfo (state name &optional old-perm new-perm rename-state orig-name marked))
+ (:conc-name git-fileinfo->))
+ marked ;; t/nil
+ state ;; current state
+ name ;; file name
+ old-perm new-perm ;; permission flags
+ rename-state ;; rename or copy state
+ orig-name ;; original name for renames or copies
+ needs-refresh) ;; whether file needs to be refreshed
+
+(defvar git-status nil)
+
+(defun git-clear-status (status)
+ "Remove everything from the status list."
+ (ewoc-filter status (lambda (info) nil)))
+
+(defun git-set-files-state (files state)
+ "Set the state of a list of files."
+ (dolist (info files)
+ (unless (eq (git-fileinfo->state info) state)
+ (setf (git-fileinfo->state info) state)
+ (setf (git-fileinfo->rename-state info) nil)
+ (setf (git-fileinfo->orig-name info) nil)
+ (setf (git-fileinfo->needs-refresh info) t))))
+
+(defun git-state-code (code)
+ "Convert from a string to a added/deleted/modified state."
+ (case (string-to-char code)
+ (?M 'modified)
+ (?? 'unknown)
+ (?A 'added)
+ (?D 'deleted)
+ (?U 'unmerged)
+ (t nil)))
+
+(defun git-status-code-as-string (code)
+ "Format a git status code as string."
+ (case code
+ ('modified (propertize "Modified" 'face 'git-status-face))
+ ('unknown (propertize "Unknown " 'face 'git-unknown-face))
+ ('added (propertize "Added " 'face 'git-status-face))
+ ('deleted (propertize "Deleted " 'face 'git-status-face))
+ ('unmerged (propertize "Unmerged" 'face 'git-unmerged-face))
+ ('uptodate (propertize "Uptodate" 'face 'git-uptodate-face))
+ ('ignored (propertize "Ignored " 'face 'git-ignored-face))
+ (t "? ")))
+
+(defun git-rename-as-string (info)
+ "Return a string describing the copy or rename associated with INFO, or an empty string if none."
+ (let ((state (git-fileinfo->rename-state info)))
+ (if state
+ (propertize
+ (concat " ("
+ (if (eq state 'copy) "copied from "
+ (if (eq (git-fileinfo->state info) 'added) "renamed from "
+ "renamed to "))
+ (git-escape-file-name (git-fileinfo->orig-name info))
+ ")") 'face 'git-status-face)
+ "")))
+
+(defun git-permissions-as-string (old-perm new-perm)
+ "Format a permission change as string."
+ (propertize
+ (if (or (not old-perm)
+ (not new-perm)
+ (eq 0 (logand ?\111 (logxor old-perm new-perm))))
+ " "
+ (if (eq 0 (logand ?\111 old-perm)) "+x" "-x"))
+ 'face 'git-permission-face))
+
+(defun git-fileinfo-prettyprint (info)
+ "Pretty-printer for the git-fileinfo structure."
+ (insert (concat " " (if (git-fileinfo->marked info) (propertize "*" 'face 'git-mark-face) " ")
+ " " (git-status-code-as-string (git-fileinfo->state info))
+ " " (git-permissions-as-string (git-fileinfo->old-perm info) (git-fileinfo->new-perm info))
+ " " (git-escape-file-name (git-fileinfo->name info))
+ (git-rename-as-string info))))
+
+(defun git-parse-status (status)
+ "Parse the output of git-diff-index in the current buffer."
+ (goto-char (point-min))
+ (while (re-search-forward
+ ":\\([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"
+ nil t 1)
+ (let ((old-perm (string-to-number (match-string 1) 8))
+ (new-perm (string-to-number (match-string 2) 8))
+ (state (or (match-string 4) (match-string 6)))
+ (name (or (match-string 5) (match-string 7)))
+ (new-name (match-string 8)))
+ (if new-name ; copy or rename
+ (if (eq ?C (string-to-char state))
+ (ewoc-enter-last status (git-create-fileinfo 'added new-name old-perm new-perm 'copy name))
+ (ewoc-enter-last status (git-create-fileinfo 'deleted name 0 0 'rename new-name))
+ (ewoc-enter-last status (git-create-fileinfo 'added new-name old-perm new-perm 'rename name)))
+ (ewoc-enter-last status (git-create-fileinfo (git-state-code state) name old-perm new-perm))))))
+
+(defun git-find-status-file (status file)
+ "Find a given file in the status ewoc and return its node."
+ (let ((node (ewoc-nth status 0)))
+ (while (and node (not (string= file (git-fileinfo->name (ewoc-data node)))))
+ (setq node (ewoc-next status node)))
+ node))
+
+(defun git-parse-ls-files (status default-state &optional skip-existing)
+ "Parse the output of git-ls-files in the current buffer."
+ (goto-char (point-min))
+ (let (infolist)
+ (while (re-search-forward "\\([HMRCK?]\\) \\([^\0]*\\)\0" nil t 1)
+ (let ((state (match-string 1))
+ (name (match-string 2)))
+ (unless (and skip-existing (git-find-status-file status name))
+ (push (git-create-fileinfo (or (git-state-code state) default-state) name) infolist))))
+ (dolist (info (nreverse infolist))
+ (ewoc-enter-last status info))))
+
+(defun git-parse-ls-unmerged (status)
+ "Parse the output of git-ls-files -u in the current buffer."
+ (goto-char (point-min))
+ (let (files)
+ (while (re-search-forward "[0-7]\\{6\\} [0-9a-f]\\{40\\} [123]\t\\([^\0]+\\)\0" nil t)
+ (let ((node (git-find-status-file status (match-string 1))))
+ (when node (push (ewoc-data node) files))))
+ (git-set-files-state files 'unmerged)))
+
+(defun git-add-status-file (state name)
+ "Add a new file to the status list (if not existing already) and return its node."
+ (unless git-status (error "Not in git-status buffer."))
+ (or (git-find-status-file git-status name)
+ (ewoc-enter-last git-status (git-create-fileinfo state name))))
+
+(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."))
+ (or (ewoc-collect git-status (lambda (info) (git-fileinfo->marked info)))
+ (list (ewoc-data (ewoc-locate git-status)))))
+
+(defun git-marked-files-state (&rest states)
+ "Return marked files that are in the specified states."
+ (let ((files (git-marked-files))
+ result)
+ (dolist (info files)
+ (when (memq (git-fileinfo->state info) states)
+ (push info result)))
+ result))
+
+(defun git-refresh-files ()
+ "Refresh all files that need it and clear the needs-refresh flag."
+ (unless git-status (error "Not in git-status buffer."))
+ (ewoc-map
+ (lambda (info)
+ (let ((refresh (git-fileinfo->needs-refresh info)))
+ (setf (git-fileinfo->needs-refresh info) nil)
+ refresh))
+ git-status)
+ ; move back to goal column
+ (when goal-column (move-to-column goal-column)))
+
+(defun git-refresh-ewoc-hf (status)
+ "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)))
+ (merge-heads (git-get-merge-heads)))
+ (ewoc-set-hf status
+ (format "Directory: %s\nBranch: %s\nHead: %s%s\n"
+ default-directory
+ (if (string-match "^refs/heads/" branch)
+ (substring branch (match-end 0))
+ branch)
+ head
+ (if merge-heads
+ (concat "\nMerging: "
+ (mapconcat (lambda (str) (substring str 0 10)) merge-heads " "))
+ ""))
+ (if (ewoc-nth status 0) "" " No changes."))))
+
+(defun git-get-filenames (files)
+ (mapcar (lambda (info) (git-fileinfo->name info)) files))
+
+(defun git-update-index (index-file files)
+ "Run git-update-index on a list of files."
+ (let ((env (and index-file `(("GIT_INDEX_FILE" . ,index-file))))
+ added deleted modified)
+ (dolist (info files)
+ (case (git-fileinfo->state info)
+ ('added (push info added))
+ ('deleted (push info deleted))
+ ('modified (push info modified))))
+ (when added
+ (apply #'git-run-command nil env "update-index" "--add" "--" (git-get-filenames added)))
+ (when deleted
+ (apply #'git-run-command nil env "update-index" "--remove" "--" (git-get-filenames deleted)))
+ (when modified
+ (apply #'git-run-command nil env "update-index" "--" (git-get-filenames modified)))))
+
+(defun git-do-commit ()
+ "Perform the actual commit using the current buffer as log message."
+ (interactive)
+ (let ((buffer (current-buffer))
+ (index-file (make-temp-file "gitidx")))
+ (with-current-buffer log-edit-parent-buffer
+ (if (git-marked-files-state 'unmerged)
+ (message "You cannot commit unmerged files, resolve them first.")
+ (unwind-protect
+ (let ((files (git-marked-files-state 'added 'deleted 'modified))
+ head head-tree)
+ (unless (git-empty-db-p)
+ (setq head (git-rev-parse "HEAD")
+ head-tree (git-rev-parse "HEAD^{tree}")))
+ (if files
+ (progn
+ (git-read-tree head-tree index-file)
+ (git-update-index nil files) ;update both the default index
+ (git-update-index index-file files) ;and the temporary one
+ (let ((tree (git-write-tree index-file)))
+ (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)))
+ (git-update-ref "HEAD" commit 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-set-files-state files 'uptodate)
+ (when (file-directory-p ".git/rr-cache")
+ (git-run-command nil nil "rerere"))
+ (git-refresh-files)
+ (git-refresh-ewoc-hf git-status)
+ (message "Committed %s." commit))
+ (message "Commit aborted."))))
+ (message "No files to commit.")))
+ (delete-file index-file))))))
+
+
+;;;; Interactive functions
+;;;; ------------------------------------------------------------
+
+(defun git-mark-file ()
+ "Mark the file that the cursor is on and move to the next one."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (let* ((pos (ewoc-locate git-status))
+ (info (ewoc-data pos)))
+ (setf (git-fileinfo->marked info) t)
+ (ewoc-invalidate git-status pos)
+ (ewoc-goto-next git-status 1)))
+
+(defun git-unmark-file ()
+ "Unmark the file that the cursor is on and move to the next one."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (let* ((pos (ewoc-locate git-status))
+ (info (ewoc-data pos)))
+ (setf (git-fileinfo->marked info) nil)
+ (ewoc-invalidate git-status pos)
+ (ewoc-goto-next git-status 1)))
+
+(defun git-unmark-file-up ()
+ "Unmark the file that the cursor is on and move to the previous one."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (let* ((pos (ewoc-locate git-status))
+ (info (ewoc-data pos)))
+ (setf (git-fileinfo->marked info) nil)
+ (ewoc-invalidate git-status pos)
+ (ewoc-goto-prev git-status 1)))
+
+(defun git-mark-all ()
+ "Mark all files."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (ewoc-map (lambda (info) (setf (git-fileinfo->marked info) t) t) git-status)
+ ; move back to goal column after invalidate
+ (when goal-column (move-to-column goal-column)))
+
+(defun git-unmark-all ()
+ "Unmark all files."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (ewoc-map (lambda (info) (setf (git-fileinfo->marked info) nil) t) git-status)
+ ; move back to goal column after invalidate
+ (when goal-column (move-to-column goal-column)))
+
+(defun git-toggle-all-marks ()
+ "Toggle all file marks."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (ewoc-map (lambda (info) (setf (git-fileinfo->marked info) (not (git-fileinfo->marked info))) t) git-status)
+ ; move back to goal column after invalidate
+ (when goal-column (move-to-column goal-column)))
+
+(defun git-next-file (&optional n)
+ "Move the selection down N files."
+ (interactive "p")
+ (unless git-status (error "Not in git-status buffer."))
+ (ewoc-goto-next git-status n))
+
+(defun git-prev-file (&optional n)
+ "Move the selection up N files."
+ (interactive "p")
+ (unless git-status (error "Not in git-status buffer."))
+ (ewoc-goto-prev git-status n))
+
+(defun git-next-unmerged-file (&optional n)
+ "Move the selection down N unmerged files."
+ (interactive "p")
+ (unless git-status (error "Not in git-status buffer."))
+ (let* ((last (ewoc-locate git-status))
+ (node (ewoc-next git-status last)))
+ (while (and node (> n 0))
+ (when (eq 'unmerged (git-fileinfo->state (ewoc-data node)))
+ (setq n (1- n))
+ (setq last node))
+ (setq node (ewoc-next git-status node)))
+ (ewoc-goto-node git-status last)))
+
+(defun git-prev-unmerged-file (&optional n)
+ "Move the selection up N unmerged files."
+ (interactive "p")
+ (unless git-status (error "Not in git-status buffer."))
+ (let* ((last (ewoc-locate git-status))
+ (node (ewoc-prev git-status last)))
+ (while (and node (> n 0))
+ (when (eq 'unmerged (git-fileinfo->state (ewoc-data node)))
+ (setq n (1- n))
+ (setq last node))
+ (setq node (ewoc-prev git-status node)))
+ (ewoc-goto-node git-status last)))
+
+(defun git-add-file ()
+ "Add marked file(s) to the index cache."
+ (interactive)
+ (let ((files (git-marked-files-state 'unknown)))
+ (unless files
+ (push (ewoc-data
+ (git-add-status-file 'added (file-relative-name
+ (read-file-name "File to add: " nil nil t))))
+ files))
+ (apply #'git-run-command nil nil "update-index" "--info-only" "--add" "--" (git-get-filenames files))
+ (git-set-files-state files 'added)
+ (git-refresh-files)))
+
+(defun git-ignore-file ()
+ "Add marked file(s) to the ignore list."
+ (interactive)
+ (let ((files (git-marked-files-state 'unknown)))
+ (unless files
+ (push (ewoc-data
+ (git-add-status-file 'unknown (file-relative-name
+ (read-file-name "File to ignore: " nil nil t))))
+ files))
+ (dolist (info files) (git-append-to-ignore (git-fileinfo->name info)))
+ (git-set-files-state files 'ignored)
+ (git-refresh-files)))
+
+(defun git-remove-file ()
+ "Remove the marked file(s)."
+ (interactive)
+ (let ((files (git-marked-files-state 'added 'modified 'unknown 'uptodate)))
+ (unless files
+ (push (ewoc-data
+ (git-add-status-file 'unknown (file-relative-name
+ (read-file-name "File to remove: " nil nil t))))
+ files))
+ (if (yes-or-no-p
+ (format "Remove %d file%s? " (length files) (if (> (length files) 1) "s" "")))
+ (progn
+ (dolist (info files)
+ (let ((name (git-fileinfo->name info)))
+ (when (file-exists-p name) (delete-file name))))
+ (apply #'git-run-command nil nil "update-index" "--info-only" "--remove" "--" (git-get-filenames files))
+ ; remove unknown files from the list, set the others to deleted
+ (ewoc-filter git-status
+ (lambda (info files)
+ (not (and (memq info files) (eq (git-fileinfo->state info) 'unknown))))
+ files)
+ (git-set-files-state files 'deleted)
+ (git-refresh-files)
+ (unless (ewoc-nth git-status 0) ; refresh header if list is empty
+ (git-refresh-ewoc-hf git-status)))
+ (message "Aborting"))))
+
+(defun git-revert-file ()
+ "Revert changes to the marked file(s)."
+ (interactive)
+ (let ((files (git-marked-files))
+ added modified)
+ (when (and files
+ (yes-or-no-p
+ (format "Revert %d file%s? " (length files) (if (> (length files) 1) "s" ""))))
+ (dolist (info files)
+ (case (git-fileinfo->state info)
+ ('added (push info added))
+ ('deleted (push info modified))
+ ('unmerged (push info modified))
+ ('modified (push info modified))))
+ (when added
+ (apply #'git-run-command nil nil "update-index" "--force-remove" "--" (git-get-filenames added))
+ (git-set-files-state added 'unknown))
+ (when modified
+ (apply #'git-run-command nil nil "checkout" "HEAD" (git-get-filenames modified))
+ (git-set-files-state modified 'uptodate))
+ (git-refresh-files))))
+
+(defun git-resolve-file ()
+ "Resolve conflicts in marked file(s)."
+ (interactive)
+ (let ((files (git-marked-files-state 'unmerged)))
+ (when files
+ (apply #'git-run-command nil nil "update-index" "--" (git-get-filenames files))
+ (git-set-files-state files 'modified)
+ (git-refresh-files))))
+
+(defun git-remove-handled ()
+ "Remove handled files from the status list."
+ (interactive)
+ (ewoc-filter git-status
+ (lambda (info)
+ (not (or (eq (git-fileinfo->state info) 'ignored)
+ (eq (git-fileinfo->state info) 'uptodate)))))
+ (unless (ewoc-nth git-status 0) ; refresh header if list is empty
+ (git-refresh-ewoc-hf git-status)))
+
+(defun git-setup-diff-buffer (buffer)
+ "Setup a buffer for displaying a diff."
+ (with-current-buffer buffer
+ (diff-mode)
+ (goto-char (point-min))
+ (setq buffer-read-only t))
+ (display-buffer buffer)
+ (shrink-window-if-larger-than-buffer))
+
+(defun git-diff-file ()
+ "Diff the marked file(s) against HEAD."
+ (interactive)
+ (let ((files (git-marked-files)))
+ (git-setup-diff-buffer
+ (apply #'git-run-command-buffer "*git-diff*" "diff-index" "-p" "-M" "HEAD" "--" (git-get-filenames files)))))
+
+(defun git-diff-file-merge-head (arg)
+ "Diff the marked file(s) against the first merge head (or the nth one with a numeric prefix)."
+ (interactive "p")
+ (let ((files (git-marked-files))
+ (merge-heads (git-get-merge-heads)))
+ (unless merge-heads (error "No merge in progress"))
+ (git-setup-diff-buffer
+ (apply #'git-run-command-buffer "*git-diff*" "diff-index" "-p" "-M"
+ (or (nth (1- arg) merge-heads) "HEAD") "--" (git-get-filenames files)))))
+
+(defun git-diff-unmerged-file (stage)
+ "Diff the marked unmerged file(s) against the specified stage."
+ (let ((files (git-marked-files)))
+ (git-setup-diff-buffer
+ (apply #'git-run-command-buffer "*git-diff*" "diff-files" "-p" stage "--" (git-get-filenames files)))))
+
+(defun git-diff-file-base ()
+ "Diff the marked unmerged file(s) against the common base file."
+ (interactive)
+ (git-diff-unmerged-file "-1"))
+
+(defun git-diff-file-mine ()
+ "Diff the marked unmerged file(s) against my pre-merge version."
+ (interactive)
+ (git-diff-unmerged-file "-2"))
+
+(defun git-diff-file-other ()
+ "Diff the marked unmerged file(s) against the other's pre-merge version."
+ (interactive)
+ (git-diff-unmerged-file "-3"))
+
+(defun git-diff-file-combined ()
+ "Do a combined diff of the marked unmerged file(s)."
+ (interactive)
+ (git-diff-unmerged-file "-c"))
+
+(defun git-diff-file-idiff ()
+ "Perform an interactive diff on the current file."
+ (interactive)
+ (error "Interactive diffs not implemented yet."))
+
+(defun git-log-file ()
+ "Display a log of changes to the marked file(s)."
+ (interactive)
+ (let* ((files (git-marked-files))
+ (coding-system-for-read git-commits-coding-system)
+ (buffer (apply #'git-run-command-buffer "*git-log*" "rev-list" "--pretty" "HEAD" "--" (git-get-filenames files))))
+ (with-current-buffer buffer
+ ; (git-log-mode) FIXME: implement log mode
+ (goto-char (point-min))
+ (setq buffer-read-only t))
+ (display-buffer buffer)))
+
+(defun git-log-edit-files ()
+ "Return a list of marked files for use in the log-edit buffer."
+ (with-current-buffer log-edit-parent-buffer
+ (git-get-filenames (git-marked-files-state 'added 'deleted 'modified))))
+
+(defun git-append-sign-off (name email)
+ "Append a Signed-off-by entry to the current buffer, avoiding duplicates."
+ (let ((sign-off (format "Signed-off-by: %s <%s>" name email))
+ (case-fold-search t))
+ (goto-char (point-min))
+ (unless (re-search-forward (concat "^" (regexp-quote sign-off)) nil t)
+ (goto-char (point-min))
+ (unless (re-search-forward "^Signed-off-by: " nil t)
+ (setq sign-off (concat "\n" sign-off)))
+ (goto-char (point-max))
+ (insert sign-off "\n"))))
+
+(defun git-setup-log-buffer (buffer &optional author-name author-email subject date msg)
+ "Setup the log buffer for a commit."
+ (unless git-status (error "Not in git-status buffer."))
+ (let ((merge-heads (git-get-merge-heads))
+ (dir default-directory)
+ (committer-name (git-get-committer-name))
+ (committer-email (git-get-committer-email))
+ (sign-off git-append-signed-off-by))
+ (with-current-buffer buffer
+ (cd dir)
+ (erase-buffer)
+ (insert
+ (propertize
+ (format "Author: %s <%s>\n%s%s"
+ (or author-name committer-name)
+ (or author-email committer-email)
+ (if date (format "Date: %s\n" date) "")
+ (if merge-heads
+ (format "Parent: %s\n%s\n"
+ (git-rev-parse "HEAD")
+ (mapconcat (lambda (str) (concat "Parent: " str)) merge-heads "\n"))
+ ""))
+ 'face 'git-header-face)
+ (propertize git-log-msg-separator 'face 'git-separator-face)
+ "\n")
+ (when subject (insert subject "\n\n"))
+ (cond (msg (insert msg "\n"))
+ ((file-readable-p ".dotest/msg")
+ (insert-file-contents ".dotest/msg"))
+ ((file-readable-p ".git/MERGE_MSG")
+ (insert-file-contents ".git/MERGE_MSG")))
+ ; delete empty lines at end
+ (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)))))
+
+(defun git-commit-file ()
+ "Commit the marked file(s), asking for a commit message."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (let ((buffer (get-buffer-create "*git-commit*"))
+ (coding-system (git-get-commits-coding-system))
+ author-name author-email subject date)
+ (when (eq 0 (buffer-size buffer))
+ (when (file-readable-p ".dotest/info")
+ (with-temp-buffer
+ (insert-file-contents ".dotest/info")
+ (goto-char (point-min))
+ (when (re-search-forward "^Author: \\(.*\\)\nEmail: \\(.*\\)$" nil t)
+ (setq author-name (match-string 1))
+ (setq author-email (match-string 2)))
+ (goto-char (point-min))
+ (when (re-search-forward "^Subject: \\(.*\\)$" nil t)
+ (setq subject (match-string 1)))
+ (goto-char (point-min))
+ (when (re-search-forward "^Date: \\(.*\\)$" nil t)
+ (setq date (match-string 1)))))
+ (git-setup-log-buffer buffer author-name author-email subject date))
+ (log-edit #'git-do-commit nil #'git-log-edit-files buffer)
+ (setq font-lock-keywords (font-lock-compile-keywords git-log-edit-font-lock-keywords))
+ (setq buffer-file-coding-system coding-system)
+ (re-search-forward (regexp-quote (concat git-log-msg-separator "\n")) nil t)))
+
+(defun git-find-file ()
+ "Visit the current file in its own buffer."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (let ((info (ewoc-data (ewoc-locate git-status))))
+ (find-file (git-fileinfo->name info))
+ (when (eq 'unmerged (git-fileinfo->state info))
+ (smerge-mode))))
+
+(defun git-find-file-other-window ()
+ "Visit the current file in its own buffer in another window."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (let ((info (ewoc-data (ewoc-locate git-status))))
+ (find-file-other-window (git-fileinfo->name info))
+ (when (eq 'unmerged (git-fileinfo->state info))
+ (smerge-mode))))
+
+(defun git-find-file-imerge ()
+ "Visit the current file in interactive merge mode."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (let ((info (ewoc-data (ewoc-locate git-status))))
+ (find-file (git-fileinfo->name info))
+ (smerge-ediff)))
+
+(defun git-view-file ()
+ "View the current file in its own buffer."
+ (interactive)
+ (unless git-status (error "Not in git-status buffer."))
+ (let ((info (ewoc-data (ewoc-locate git-status))))
+ (view-file (git-fileinfo->name info))))
+
+(defun git-refresh-status ()
+ "Refresh the git status buffer."
+ (interactive)
+ (let* ((status git-status)
+ (pos (ewoc-locate status))
+ (cur-name (and pos (git-fileinfo->name (ewoc-data pos)))))
+ (unless status (error "Not in git-status buffer."))
+ (git-clear-status status)
+ (git-run-command nil nil "update-index" "--info-only" "--refresh")
+ (if (git-empty-db-p)
+ ; we need some special handling for an empty db
+ (with-temp-buffer
+ (git-run-command t nil "ls-files" "-z" "-t" "-c")
+ (git-parse-ls-files status 'added))
+ (with-temp-buffer
+ (git-run-command t nil "diff-index" "-z" "-M" "HEAD")
+ (git-parse-status status)))
+ (with-temp-buffer
+ (git-run-command t nil "ls-files" "-z" "-u")
+ (git-parse-ls-unmerged status))
+ (when (file-readable-p ".git/info/exclude")
+ (with-temp-buffer
+ (git-run-command t nil "ls-files" "-z" "-t" "-o"
+ "--exclude-from=.git/info/exclude"
+ (concat "--exclude-per-directory=" git-per-dir-ignore-file))
+ (git-parse-ls-files status 'unknown)))
+ (git-refresh-files)
+ (git-refresh-ewoc-hf status)
+ ; move point to the current file name if any
+ (let ((node (and cur-name (git-find-status-file status cur-name))))
+ (when node (ewoc-goto-node status node)))))
+
+(defun git-status-quit ()
+ "Quit git-status mode."
+ (interactive)
+ (bury-buffer))
+
+;;;; Major Mode
+;;;; ------------------------------------------------------------
+
+(defvar git-status-mode-hook nil
+ "Run after `git-status-mode' is setup.")
+
+(defvar git-status-mode-map nil
+ "Keymap for git major mode.")
+
+(defvar git-status nil
+ "List of all files managed by the git-status mode.")
+
+(unless git-status-mode-map
+ (let ((map (make-keymap))
+ (diff-map (make-sparse-keymap)))
+ (suppress-keymap map)
+ (define-key map "?" 'git-help)
+ (define-key map "h" 'git-help)
+ (define-key map " " 'git-next-file)
+ (define-key map "a" 'git-add-file)
+ (define-key map "c" 'git-commit-file)
+ (define-key map "d" diff-map)
+ (define-key map "=" 'git-diff-file)
+ (define-key map "f" 'git-find-file)
+ (define-key map "\r" 'git-find-file)
+ (define-key map "g" 'git-refresh-status)
+ (define-key map "i" 'git-ignore-file)
+ (define-key map "l" 'git-log-file)
+ (define-key map "m" 'git-mark-file)
+ (define-key map "M" 'git-mark-all)
+ (define-key map "n" 'git-next-file)
+ (define-key map "N" 'git-next-unmerged-file)
+ (define-key map "o" 'git-find-file-other-window)
+ (define-key map "p" 'git-prev-file)
+ (define-key map "P" 'git-prev-unmerged-file)
+ (define-key map "q" 'git-status-quit)
+ (define-key map "r" 'git-remove-file)
+ (define-key map "R" 'git-resolve-file)
+ (define-key map "T" 'git-toggle-all-marks)
+ (define-key map "u" 'git-unmark-file)
+ (define-key map "U" 'git-revert-file)
+ (define-key map "v" 'git-view-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 diff submap
+ (define-key diff-map "b" 'git-diff-file-base)
+ (define-key diff-map "c" 'git-diff-file-combined)
+ (define-key diff-map "=" 'git-diff-file)
+ (define-key diff-map "e" 'git-diff-file-idiff)
+ (define-key diff-map "E" 'git-find-file-imerge)
+ (define-key diff-map "h" 'git-diff-file-merge-head)
+ (define-key diff-map "m" 'git-diff-file-mine)
+ (define-key diff-map "o" 'git-diff-file-other)
+ (setq git-status-mode-map map)))
+
+;; git mode should only run in the *git status* buffer
+(put 'git-status-mode 'mode-class 'special)
+
+(defun git-status-mode ()
+ "Major mode for interacting with Git.
+Commands:
+\\{git-status-mode-map}"
+ (kill-all-local-variables)
+ (buffer-disable-undo)
+ (setq mode-name "git status"
+ major-mode 'git-status-mode
+ goal-column 17
+ buffer-read-only t)
+ (use-local-map git-status-mode-map)
+ (let ((buffer-read-only nil))
+ (erase-buffer)
+ (let ((status (ewoc-create 'git-fileinfo-prettyprint "" "")))
+ (set (make-local-variable 'git-status) status))
+ (set (make-local-variable 'list-buffers-directory) default-directory)
+ (run-hooks 'git-status-mode-hook)))
+
+(defun git-find-status-buffer (dir)
+ "Find the git status buffer handling a specified directory."
+ (let ((list (buffer-list))
+ (fulldir (expand-file-name dir))
+ found)
+ (while (and list (not found))
+ (let ((buffer (car list)))
+ (with-current-buffer buffer
+ (when (and list-buffers-directory
+ (string-equal fulldir (expand-file-name list-buffers-directory))
+ (string-match "\\*git-status\\*$" (buffer-name buffer)))
+ (setq found buffer))))
+ (setq list (cdr list)))
+ found))
+
+(defun git-status (dir)
+ "Entry point into git-status mode."
+ (interactive "DSelect directory: ")
+ (setq dir (git-get-top-dir dir))
+ (if (file-directory-p (concat (file-name-as-directory dir) ".git"))
+ (let ((buffer (or (and git-reuse-status-buffer (git-find-status-buffer dir))
+ (create-file-buffer (expand-file-name "*git-status*" dir)))))
+ (switch-to-buffer buffer)
+ (cd dir)
+ (git-status-mode)
+ (git-refresh-status)
+ (goto-char (point-min)))
+ (message "%s is not a git working tree." dir)))
+
+(defun git-help ()
+ "Display help for Git mode."
+ (interactive)
+ (describe-function 'git-status-mode))
+
+(provide 'git)
+;;; git.el ends here
diff --git a/contrib/emacs/vc-git.el b/contrib/emacs/vc-git.el
new file mode 100644
index 0000000000..e456ab9712
--- /dev/null
+++ b/contrib/emacs/vc-git.el
@@ -0,0 +1,151 @@
+;;; 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-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)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 19:47:00 +0000