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;;; git.el --- A user interface for git
;; Copyright (C) 2005, 2006, 2007 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
;; - 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)
(require 'easymenu)
;;;; 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)
(defcustom git-show-uptodate nil
"Whether to display up-to-date files."
:group 'git
:type 'boolean)
(defcustom git-show-ignored nil
"Whether to display ignored files."
:group 'git
:type 'boolean)
(defcustom git-show-unknown t
"Whether to display unknown files."
:group 'git
:type 'boolean)
(defface git-status-face
'((((class color) (background light)) (:foreground "purple"))
(((class color) (background dark)) (:foreground "salmon")))
"Git mode face used to highlight added and modified files."
:group 'git)
(defface git-unmerged-face
'((((class color) (background light)) (:foreground "red" :bold t))
(((class color) (background dark)) (: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))
(((class color) (background dark)) (:foreground "goldenrod" :bold t)))
"Git mode face used to highlight unknown files."
:group 'git)
(defface git-uptodate-face
'((((class color) (background light)) (:foreground "grey60"))
(((class color) (background dark)) (:foreground "grey40")))
"Git mode face used to highlight up-to-date files."
:group 'git)
(defface git-ignored-face
'((((class color) (background light)) (:foreground "grey60"))
(((class color) (background dark)) (:foreground "grey40")))
"Git mode face used to highlight ignored files."
:group 'git)
(defface git-mark-face
'((((class color) (background light)) (:foreground "red" :bold t))
(((class color) (background dark)) (:foreground "tomato" :bold t)))
"Git mode face used for the file marks."
:group 'git)
(defface git-header-face
'((((class color) (background light)) (:foreground "blue"))
(((class color) (background dark)) (:foreground "blue")))
"Git mode face used for commit headers."
:group 'git)
(defface git-separator-face
'((((class color) (background light)) (:foreground "brown"))
(((class color) (background dark)) (:foreground "brown")))
"Git mode face used for commit separator."
:group 'git)
(defface git-permission-face
'((((class color) (background light)) (:foreground "green" :bold t))
(((class color) (background dark)) (: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."
(let ((process-environment (append (git-get-env-strings env)
process-environment)))
(apply #'call-process "git" nil buffer nil args)))
(defun git-call-process-display-error (&rest args)
"Wrapper for call-process that displays error messages."
(let* ((dir default-directory)
(buffer (get-buffer-create "*Git Command Output*"))
(ok (with-current-buffer buffer
(let ((default-directory dir)
(buffer-read-only nil))
(erase-buffer)
(eq 0 (apply 'call-process "git" nil (list buffer t) nil args))))))
(unless ok (display-message-or-buffer buffer))
ok))
(defun git-call-process-env-string (env &rest args)
"Wrapper for call-process that sets environment strings,
and returns the process output as a string, or nil if the git failed."
(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-region (buffer start end env &rest args)
"Run a git command with specified buffer region as input."
(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))))
(defun git-run-hook (hook env &rest args)
"Run a git hook and display its output if any."
(let ((dir default-directory)
(hook-name (expand-file-name (concat ".git/hooks/" hook))))
(or (not (file-executable-p hook-name))
(let (status (buffer (get-buffer-create "*Git Hook Output*")))
(with-current-buffer buffer
(erase-buffer)
(cd dir)
(setq status
(if env
(apply #'call-process "env" nil (list buffer t) nil
(append (git-get-env-strings env) (list hook-name) args))
(apply #'call-process hook-name nil (list buffer t) nil args))))
(display-message-or-buffer buffer)
(eq 0 status)))))
(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-get-logoutput-coding-system ()
"Return the coding system used for git-log output."
(let ((repo-config (or (git-config "i18n.logoutputencoding")
(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-success-message (text files)
"Print a success message after having handled FILES."
(let ((n (length files)))
(if (equal n 1)
(message "%s %s" text (car files))
(message "%s %d files" text n))))
(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-call-process-env nil nil "update-index" "--add" "--" (file-relative-name ignore-name)))
(git-update-status-files (list (file-relative-name ignore-name)) 'unknown)))
; 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 newval &optional oldval reason)
"Update a reference by calling git-update-ref."
(let ((args (and oldval (list oldval))))
(push newval args)
(push ref args)
(when reason
(push reason args)
(push "-m" args))
(apply 'git-call-process-display-error "update-ref" args)))
(defun git-read-tree (tree &optional index-file)
"Read a tree into the index file."
(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))
(subject "commit (initial): ")
author-date log-start log-end args coding-system-for-write)
(when head
(setq subject "commit: ")
(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))
(setq subject "commit (merge): ")
(push "-p" args)
(push (match-string 1) args))))
(setq log-start (point-min)))
(setq log-end (point-max))
(goto-char log-start)
(when (re-search-forward ".*$" nil t)
(setq subject (concat subject (match-string 0))))
(setq coding-system-for-write buffer-file-coding-system))
(let ((commit
(git-get-string-sha1
(with-output-to-string
(with-current-buffer standard-output
(let ((env `(("GIT_AUTHOR_NAME" . ,author-name)
("GIT_AUTHOR_EMAIL" . ,author-email)
("GIT_COMMITTER_NAME" . ,(git-get-committer-name))
("GIT_COMMITTER_EMAIL" . ,(git-get-committer-email)))))
(when author-date (push `("GIT_AUTHOR_DATE" . ,author-date) env))
(apply #'git-run-command-region
buffer log-start log-end env
"commit-tree" tree (nreverse args))))))))
(and (git-update-ref "HEAD" commit head subject)
commit))))
(defun git-empty-db-p ()
"Check if the git db is empty (no commit done yet)."
(not (eq 0 (call-process "git" nil nil nil "rev-parse" "--verify" "HEAD"))))
(defun git-get-merge-heads ()
"Retrieve the merge heads from the MERGE_HEAD file if present."
(let (heads)
(when (file-readable-p ".git/MERGE_HEAD")
(with-temp-buffer
(insert-file-contents ".git/MERGE_HEAD" nil nil nil t)
(goto-char (point-min))
(while (re-search-forward "[0-9a-f]\\{40\\}" nil t)
(push (match-string 0) heads))))
(nreverse heads)))
(defun git-get-commit-description (commit)
"Get a one-line description of COMMIT."
(let ((coding-system-for-read (git-get-logoutput-coding-system)))
(let ((descr (git-call-process-env-string nil "log" "--max-count=1" "--pretty=oneline" commit)))
(if (and descr (string-match "\\`\\([0-9a-f]\\{40\\}\\) *\\(.*\\)$" descr))
(concat (substring (match-string 1 descr) 0 10) " - " (match-string 2 descr))
descr))))
;;;; 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-fileinfo-state (info state)
"Set the state of a file info."
(unless (eq (git-fileinfo->state info) state)
(setf (git-fileinfo->state info) state
(git-fileinfo->new-perm info) (git-fileinfo->old-perm info)
(git-fileinfo->rename-state info) nil
(git-fileinfo->orig-name info) nil
(git-fileinfo->needs-refresh info) t)))
(defun git-status-filenames-map (status func files &rest args)
"Apply FUNC to the status files names in the FILES list."
(when files
(setq files (sort files #'string-lessp))
(let ((file (pop files))
(node (ewoc-nth status 0)))
(while (and file node)
(let ((info (ewoc-data node)))
(if (string-lessp (git-fileinfo->name info) file)
(setq node (ewoc-next status node))
(if (string-equal (git-fileinfo->name info) file)
(apply func info args))
(setq file (pop files))))))))
(defun git-set-filenames-state (status files state)
"Set the state of a list of named files."
(when files
(git-status-filenames-map status #'git-set-fileinfo-state files state)
(unless state ;; delete files whose state has been set to nil
(ewoc-filter status (lambda (info) (git-fileinfo->state info))))))
(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 'modified)
(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-file-type-as-string (old-perm new-perm)
"Return a string describing the file type based on its permissions."
(let* ((old-type (lsh (or old-perm 0) -9))
(new-type (lsh (or new-perm 0) -9))
(str (case new-type
(?\100 ;; file
(case old-type
(?\100 nil)
(?\120 " (type change symlink -> file)")
(?\160 " (type change subproject -> file)")))
(?\120 ;; symlink
(case old-type
(?\100 " (type change file -> symlink)")
(?\160 " (type change subproject -> symlink)")
(t " (symlink)")))
(?\160 ;; subproject
(case old-type
(?\100 " (type change file -> subproject)")
(?\120 " (type change symlink -> subproject)")
(t " (subproject)")))
(?\110 nil) ;; directory (internal, not a real git state)
(?\000 ;; deleted or unknown
(case old-type
(?\120 " (symlink)")
(?\160 " (subproject)")))
(t (format " (unknown type %o)" new-type)))))
(cond (str (propertize str 'face 'git-status-face))
((eq new-type ?\110) "/")
(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."
(let ((old-perm (git-fileinfo->old-perm info))
(new-perm (git-fileinfo->new-perm info)))
(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 old-perm new-perm)
" " (git-escape-file-name (git-fileinfo->name info))
(git-file-type-as-string old-perm new-perm)
(git-rename-as-string info)))))
(defun git-insert-info-list (status infolist)
"Insert a list of file infos in the status buffer, replacing existing ones if any."
(setq infolist (sort infolist
(lambda (info1 info2)
(string-lessp (git-fileinfo->name info1)
(git-fileinfo->name info2)))))
(let ((info (pop infolist))
(node (ewoc-nth status 0)))
(while info
(cond ((not node)
(setq node (ewoc-enter-last status info))
(setq info (pop infolist)))
((string-lessp (git-fileinfo->name (ewoc-data node))
(git-fileinfo->name info))
(setq node (ewoc-next status node)))
((string-equal (git-fileinfo->name (ewoc-data node))
(git-fileinfo->name info))
;; preserve the marked flag
(setf (git-fileinfo->marked info) (git-fileinfo->marked (ewoc-data node)))
(setf (git-fileinfo->needs-refresh info) t)
(setf (ewoc-data node) info)
(setq info (pop infolist)))
(t
(setq node (ewoc-enter-before status node info))
(setq info (pop infolist)))))))
(defun git-run-diff-index (status files)
"Run git-diff-index on FILES and parse the results into STATUS.
Return the list of files that haven't been handled."
(let ((remaining (copy-sequence files))
infolist)
(with-temp-buffer
(apply #'git-call-process-env t nil "diff-index" "-z" "-M" "HEAD" "--" files)
(goto-char (point-min))
(while (re-search-forward
":\\([0-7]\\{6\\}\\) \\([0-7]\\{6\\}\\) [0-9a-f]\\{40\\} [0-9a-f]\\{40\\} \\(\\([ADMUT]\\)\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))
(push (git-create-fileinfo 'added new-name old-perm new-perm 'copy name) infolist)
(push (git-create-fileinfo 'deleted name 0 0 'rename new-name) infolist)
(push (git-create-fileinfo 'added new-name old-perm new-perm 'rename name) infolist))
(push (git-create-fileinfo (git-state-code state) name old-perm new-perm) infolist))
(setq remaining (delete name remaining))
(when new-name (setq remaining (delete new-name remaining))))))
(git-insert-info-list status infolist)
remaining))
(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-run-ls-files (status files default-state &rest options)
"Run git-ls-files on FILES and parse the results into STATUS.
Return the list of files that haven't been handled."
(let (infolist)
(with-temp-buffer
(apply #'git-call-process-env t nil "ls-files" "-z" (append options (list "--") files))
(goto-char (point-min))
(while (re-search-forward "\\([^\0]*?\\)\\(/?\\)\0" nil t 1)
(let ((name (match-string 1)))
(push (git-create-fileinfo default-state name 0
(if (string-equal "/" (match-string 2)) (lsh ?\110 9) 0))
infolist)
(setq files (delete name files)))))
(git-insert-info-list status infolist)
files))
(defun git-run-ls-files-cached (status files default-state)
"Run git-ls-files -c on FILES and parse the results into STATUS.
Return the list of files that haven't been handled."
(let ((remaining (copy-sequence files))
infolist)
(with-temp-buffer
(apply #'git-call-process-env t nil "ls-files" "-z" "-s" "-c" "--" files)
(goto-char (point-min))
(while (re-search-forward "\\([0-7]\\{6\\}\\) [0-9a-f]\\{40\\} 0\t\\([^\0]+\\)\0" nil t)
(let* ((new-perm (string-to-number (match-string 1) 8))
(old-perm (if (eq default-state 'added) 0 new-perm))
(name (match-string 2)))
(push (git-create-fileinfo default-state name old-perm new-perm) infolist)
(setq remaining (delete name remaining)))))
(git-insert-info-list status infolist)
remaining))
(defun git-run-ls-unmerged (status files)
"Run git-ls-files -u on FILES and parse the results into STATUS."
(with-temp-buffer
(apply #'git-call-process-env t nil "ls-files" "-z" "-u" "--" files)
(goto-char (point-min))
(let (unmerged-files)
(while (re-search-forward "[0-7]\\{6\\} [0-9a-f]\\{40\\} [123]\t\\([^\0]+\\)\0" nil t)
(push (match-string 1) unmerged-files))
(git-set-filenames-state status unmerged-files 'unmerged))))
(defun git-get-exclude-files ()
"Get the list of exclude files to pass to git-ls-files."
(let (files
(config (git-config "core.excludesfile")))
(when (file-readable-p ".git/info/exclude")
(push ".git/info/exclude" files))
(when (and config (file-readable-p config))
(push config files))
files))
(defun git-run-ls-files-with-excludes (status files default-state &rest options)
"Run git-ls-files on FILES with appropriate --exclude-from options."
(let ((exclude-files (git-get-exclude-files)))
(apply #'git-run-ls-files status files default-state "--directory" "--no-empty-directory"
(concat "--exclude-per-directory=" git-per-dir-ignore-file)
(append options (mapcar (lambda (f) (concat "--exclude-from=" f)) exclude-files)))))
(defun git-update-status-files (files &optional default-state)
"Update the status of FILES from the index."
(unless git-status (error "Not in git-status buffer."))
(when (or git-show-uptodate files)
(git-run-ls-files-cached git-status files 'uptodate))
(let* ((remaining-files
(if (git-empty-db-p) ; we need some special handling for an empty db
(git-run-ls-files-cached git-status files 'added)
(git-run-diff-index git-status files))))
(git-run-ls-unmerged git-status files)
(when (or remaining-files (and git-show-unknown (not files)))
(setq remaining-files (git-run-ls-files-with-excludes git-status remaining-files 'unknown "-o")))
(when (or remaining-files (and git-show-ignored (not files)))
(setq remaining-files (git-run-ls-files-with-excludes git-status remaining-files 'ignored "-o" "-i")))
(git-set-filenames-state git-status remaining-files default-state)
(git-refresh-files)
(git-refresh-ewoc-hf git-status)))
(defun git-mark-files (status files)
"Mark all the specified FILES, and unmark the others."
(setq files (sort files #'string-lessp))
(let ((file (and files (pop files)))
(node (ewoc-nth status 0)))
(while node
(let ((info (ewoc-data node)))
(if (and file (string-equal (git-fileinfo->name info) file))
(progn
(unless (git-fileinfo->marked info)
(setf (git-fileinfo->marked info) t)
(setf (git-fileinfo->needs-refresh info) t))
(setq file (pop files))
(setq node (ewoc-next status node)))
(when (git-fileinfo->marked info)
(setf (git-fileinfo->marked info) nil)
(setf (git-fileinfo->needs-refresh info) t))
(if (and file (string-lessp file (git-fileinfo->name info)))
(setq file (pop files))
(setq node (ewoc-next status node))))))))
(defun git-marked-files ()
"Return a list of all marked files, or if none a list containing just the file at cursor position."
(unless git-status (error "Not in git-status buffer."))
(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"
(git-get-commit-description "HEAD")))
(merge-heads (git-get-merge-heads)))
(ewoc-set-hf status
(format "Directory: %s\nBranch: %s\nHead: %s%s\n"
default-directory
(if branch
(if (string-match "^refs/heads/" branch)
(substring branch (match-end 0))
branch)
"none (detached HEAD)")
head
(if merge-heads
(concat "\nMerging: "
(mapconcat (lambda (str) (git-get-commit-description str)) merge-heads "\n "))
""))
(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-call-process-env nil env "update-index" "--add" "--" (git-get-filenames added)))
(when deleted
(apply #'git-call-process-env nil env "update-index" "--remove" "--" (git-get-filenames deleted)))
(when modified
(apply #'git-call-process-env nil env "update-index" "--" (git-get-filenames modified)))))
(defun git-run-pre-commit-hook ()
"Run the pre-commit hook if any."
(unless git-status (error "Not in git-status buffer."))
(let ((files (git-marked-files-state 'added 'deleted 'modified)))
(or (not files)
(not (file-executable-p ".git/hooks/pre-commit"))
(let ((index-file (make-temp-file "gitidx")))
(unwind-protect
(let ((head-tree (unless (git-empty-db-p) (git-rev-parse "HEAD^{tree}"))))
(git-read-tree head-tree index-file)
(git-update-index index-file files)
(git-run-hook "pre-commit" `(("GIT_INDEX_FILE" . ,index-file))))
(delete-file index-file))))))
(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
(message "Running git commit...")
(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)))
(when commit
(condition-case nil (delete-file ".git/MERGE_HEAD") (error nil))
(condition-case nil (delete-file ".git/MERGE_MSG") (error nil))
(with-current-buffer buffer (erase-buffer))
(git-update-status-files (git-get-filenames files) 'uptodate)
(git-call-process-env nil nil "rerere")
(git-call-process-env nil nil "gc" "--auto")
(git-refresh-files)
(git-refresh-ewoc-hf git-status)
(message "Committed %s." commit)
(git-run-hook "post-commit" nil)))
(message "Commit aborted."))))
(message "No files to commit.")))
(delete-file index-file))))))
;;;; 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) (unless (git-fileinfo->marked info)
(setf (git-fileinfo->marked info) 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) (when (git-fileinfo->marked 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-get-filenames (git-marked-files-state 'unknown 'ignored))))
;; FIXME: add support for directories
(unless files
(push (file-relative-name (read-file-name "File to add: " nil nil t)) files))
(when (apply 'git-call-process-display-error "update-index" "--add" "--" files)
(git-update-status-files files 'uptodate)
(git-success-message "Added" files))))
(defun git-ignore-file ()
"Add marked file(s) to the ignore list."
(interactive)
(let ((files (git-get-filenames (git-marked-files-state 'unknown))))
(unless files
(push (file-relative-name (read-file-name "File to ignore: " nil nil t)) files))
(dolist (f files) (git-append-to-ignore f))
(git-update-status-files files 'ignored)
(git-success-message "Ignored" files)))
(defun git-remove-file ()
"Remove the marked file(s)."
(interactive)
(let ((files (git-get-filenames (git-marked-files-state 'added 'modified 'unknown 'uptodate 'ignored))))
(unless files
(push (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 (name files)
(ignore-errors
(if (file-directory-p name)
(delete-directory name)
(delete-file name))))
(when (apply 'git-call-process-display-error "update-index" "--remove" "--" files)
(git-update-status-files files nil)
(git-success-message "Removed" files)))
(message "Aborting"))))
(defun git-revert-file ()
"Revert changes to the marked file(s)."
(interactive)
(let ((files (git-marked-files-state 'added 'deleted 'modified 'unmerged))
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 (git-fileinfo->name info) added))
('deleted (push (git-fileinfo->name info) modified))
('unmerged (push (git-fileinfo->name info) modified))
('modified (push (git-fileinfo->name info) modified))))
;; check if a buffer contains one of the files and isn't saved
(dolist (file modified)
(let ((buffer (get-file-buffer file)))
(when (and buffer (buffer-modified-p buffer))
(error "Buffer %s is modified. Please kill or save modified buffers before reverting." (buffer-name buffer)))))
(let ((ok (and
(or (not added)
(apply 'git-call-process-display-error "update-index" "--force-remove" "--" added))
(or (not modified)
(apply 'git-call-process-display-error "checkout" "HEAD" modified)))))
(git-update-status-files (append added modified) 'uptodate)
(when ok
(dolist (file modified)
(let ((buffer (get-file-buffer file)))
(when buffer (with-current-buffer buffer (revert-buffer t t t)))))
(git-success-message "Reverted" (git-get-filenames files)))))))
(defun git-resolve-file ()
"Resolve conflicts in marked file(s)."
(interactive)
(let ((files (git-get-filenames (git-marked-files-state 'unmerged))))
(when files
(when (apply 'git-call-process-display-error "update-index" "--" files)
(git-update-status-files files 'uptodate)
(git-success-message "Resolved" files)))))
(defun git-remove-handled ()
"Remove handled files from the status list."
(interactive)
(ewoc-filter git-status
(lambda (info)
(case (git-fileinfo->state info)
('ignored git-show-ignored)
('uptodate git-show-uptodate)
('unknown git-show-unknown)
(t t))))
(unless (ewoc-nth git-status 0) ; refresh header if list is empty
(git-refresh-ewoc-hf git-status)))
(defun git-toggle-show-uptodate ()
"Toogle the option for showing up-to-date files."
(interactive)
(if (setq git-show-uptodate (not git-show-uptodate))
(git-refresh-status)
(git-remove-handled)))
(defun git-toggle-show-ignored ()
"Toogle the option for showing ignored files."
(interactive)
(if (setq git-show-ignored (not git-show-ignored))
(progn
(message "Inserting ignored files...")
(git-run-ls-files-with-excludes git-status nil 'ignored "-o" "-i")
(git-refresh-files)
(git-refresh-ewoc-hf git-status)
(message "Inserting ignored files...done"))
(git-remove-handled)))
(defun git-toggle-show-unknown ()
"Toogle the option for showing unknown files."
(interactive)
(if (setq git-show-unknown (not git-show-unknown))
(progn
(message "Inserting unknown files...")
(git-run-ls-files-with-excludes git-status nil 'unknown "-o")
(git-refresh-files)
(git-refresh-ewoc-hf git-status)
(message "Inserting unknown files...done"))
(git-remove-handled)))
(defun git-expand-directory (info)
"Expand the directory represented by INFO to list its files."
(when (eq (lsh (git-fileinfo->new-perm info) -9) ?\110)
(let ((dir (git-fileinfo->name info)))
(git-set-filenames-state git-status (list dir) nil)
(git-run-ls-files-with-excludes git-status (list (concat dir "/")) 'unknown "-o")
(git-refresh-files)
(git-refresh-ewoc-hf git-status)
t)))
(defun git-setup-diff-buffer (buffer)
"Setup a buffer for displaying a diff."
(let ((dir default-directory))
(with-current-buffer buffer
(diff-mode)
(goto-char (point-min))
(setq default-directory dir)
(setq buffer-read-only t)))
(display-buffer buffer)
; shrink window only if it displays the status buffer
(when (eq (window-buffer) (current-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)
(let ((files (git-marked-files-state 'added 'deleted 'modified)))
(unless (eq 1 (length files))
(error "Cannot perform an interactive diff on multiple files."))
(let* ((filename (car (git-get-filenames files)))
(buff1 (find-file-noselect filename))
(buff2 (git-run-command-buffer (concat filename ".~HEAD~") "cat-file" "blob" (concat "HEAD:" filename))))
(ediff-buffers buff1 buff2))))
(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-log-edit-diff ()
"Run a diff of the current files being committed from a log-edit buffer."
(with-current-buffer log-edit-parent-buffer
(git-diff-file)))
(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)))
buffer))
(defun git-commit-file ()
"Commit the marked file(s), asking for a commit message."
(interactive)
(unless git-status (error "Not in git-status buffer."))
(when (git-run-pre-commit-hook)
(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: \\(.*\\)$" nil t)
(setq date (match-string 1)))))
(git-setup-log-buffer buffer author-name author-email subject date))
(if (boundp 'log-edit-diff-function)
(log-edit 'git-do-commit nil '((log-edit-listfun . git-log-edit-files)
(log-edit-diff-function . git-log-edit-diff)) buffer)
(log-edit 'git-do-commit nil 'git-log-edit-files buffer))
(setq font-lock-keywords (font-lock-compile-keywords git-log-edit-font-lock-keywords))
(setq buffer-file-coding-system coding-system)
(re-search-forward (regexp-quote (concat git-log-msg-separator "\n")) nil t))))
(defun git-setup-commit-buffer (commit)
"Setup the commit buffer with the contents of COMMIT."
(let (author-name author-email subject date msg)
(with-temp-buffer
(let ((coding-system (git-get-logoutput-coding-system)))
(git-call-process-env t nil "log" "-1" "--pretty=medium" commit)
(goto-char (point-min))
(when (re-search-forward "^Author: *\\(.*\\) <\\(.*\\)>$" nil t)
(setq author-name (match-string 1))
(setq author-email (match-string 2)))
(when (re-search-forward "^Date: *\\(.*\\)$" nil t)
(setq date (match-string 1)))
(while (re-search-forward "^ \\(.*\\)$" nil t)
(push (match-string 1) msg))
(setq msg (nreverse msg))
(setq subject (pop msg))
(while (and msg (zerop (length (car msg))) (pop msg)))))
(git-setup-log-buffer (get-buffer-create "*git-commit*")
author-name author-email subject date
(mapconcat #'identity msg "\n"))))
(defun git-get-commit-files (commit)
"Retrieve the list of files modified by COMMIT."
(let (files)
(with-temp-buffer
(git-call-process-env t nil "diff-tree" "-r" "-z" "--name-only" "--no-commit-id" commit)
(goto-char (point-min))
(while (re-search-forward "\\([^\0]*\\)\0" nil t 1)
(push (match-string 1) files)))
files))
(defun git-amend-commit ()
"Undo the last commit on HEAD, and set things up to commit an
amended version of it."
(interactive)
(unless git-status (error "Not in git-status buffer."))
(when (git-empty-db-p) (error "No commit to amend."))
(let* ((commit (git-rev-parse "HEAD"))
(files (git-get-commit-files commit)))
(when (git-call-process-display-error "reset" "--soft" "HEAD^")
(git-update-status-files (copy-sequence files) 'uptodate)
(git-mark-files git-status files)
(git-refresh-files)
(git-setup-commit-buffer commit)
(git-commit-file))))
(defun git-find-file ()
"Visit the current file in its own buffer."
(interactive)
(unless git-status (error "Not in git-status buffer."))
(let ((info (ewoc-data (ewoc-locate git-status))))
(unless (git-expand-directory info)
(find-file (git-fileinfo->name info))
(when (eq 'unmerged (git-fileinfo->state info))
(smerge-mode 1)))))
(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))
(marked-files (git-get-filenames (ewoc-collect status (lambda (info) (git-fileinfo->marked info)))))
(cur-name (and pos (git-fileinfo->name (ewoc-data pos)))))
(unless status (error "Not in git-status buffer."))
(message "Refreshing git status...")
(git-call-process-env nil nil "update-index" "--refresh")
(git-clear-status status)
(git-update-status-files nil)
; restore file marks
(when marked-files
(git-status-filenames-map status
(lambda (info)
(setf (git-fileinfo->marked info) t)
(setf (git-fileinfo->needs-refresh info) t))
marked-files)
(git-refresh-files))
; move point to the current file name if any
(message "Refreshing git status...done")
(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))
(commit-map (make-sparse-keymap))
(diff-map (make-sparse-keymap))
(toggle-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 "\C-c" commit-map)
(define-key map "d" diff-map)
(define-key map "=" 'git-diff-file)
(define-key map "f" 'git-find-file)
(define-key map "\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" toggle-map)
(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 commit submap
(define-key commit-map "\C-a" 'git-amend-commit)
; the diff submap
(define-key diff-map "b" 'git-diff-file-base)
(define-key diff-map "c" 'git-diff-file-combined)
(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)
; the toggle submap
(define-key toggle-map "u" 'git-toggle-show-uptodate)
(define-key toggle-map "i" 'git-toggle-show-ignored)
(define-key toggle-map "k" 'git-toggle-show-unknown)
(define-key toggle-map "m" 'git-toggle-all-marks)
(setq git-status-mode-map map))
(easy-menu-define git-menu git-status-mode-map
"Git Menu"
`("Git"
["Refresh" git-refresh-status t]
["Commit" git-commit-file t]
("Merge"
["Next Unmerged File" git-next-unmerged-file t]
["Prev Unmerged File" git-prev-unmerged-file t]
["Mark as Resolved" git-resolve-file t]
["Interactive Merge File" git-find-file-imerge t]
["Diff Against Common Base File" git-diff-file-base t]
["Diff Combined" git-diff-file-combined t]
["Diff Against Merge Head" git-diff-file-merge-head t]
["Diff Against Mine" git-diff-file-mine t]
["Diff Against Other" git-diff-file-other t])
"--------"
["Add File" git-add-file t]
["Revert File" git-revert-file t]
["Ignore File" git-ignore-file t]
["Remove File" git-remove-file t]
"--------"
["Find File" git-find-file t]
["View File" git-view-file t]
["Diff File" git-diff-file t]
["Interactive Diff File" git-diff-file-idiff t]
["Log" git-log-file t]
"--------"
["Mark" git-mark-file t]
["Mark All" git-mark-all t]
["Unmark" git-unmark-file t]
["Unmark All" git-unmark-all t]
["Toggle All Marks" git-toggle-all-marks t]
["Hide Handled Files" git-remove-handled t]
"--------"
["Show Uptodate Files" git-toggle-show-uptodate :style toggle :selected git-show-uptodate]
["Show Ignored Files" git-toggle-show-ignored :style toggle :selected git-show-ignored]
["Show Unknown Files" git-toggle-show-unknown :style toggle :selected git-show-unknown]
"--------"
["Quit" git-status-quit t])))
;; 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)
(make-local-variable 'git-show-uptodate)
(make-local-variable 'git-show-ignored)
(make-local-variable 'git-show-unknown)
(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))
(eq major-mode 'git-status-mode))
(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))
(add-hook 'after-save-hook 'git-update-saved-file))
(message "%s is not a git working tree." dir)))
(defun git-update-saved-file ()
"Update the corresponding git-status buffer when a file is saved.
Meant to be used in `after-save-hook'."
(let* ((file (expand-file-name buffer-file-name))
(dir (condition-case nil (git-get-top-dir (file-name-directory file)) (error nil)))
(buffer (and dir (git-find-status-buffer dir))))
(when buffer
(with-current-buffer buffer
(let ((filename (file-relative-name file dir)))
; skip files located inside the .git directory
(unless (string-match "^\\.git/" filename)
(git-call-process-env nil nil "add" "--refresh" "--" filename)
(git-update-status-files (list filename) 'uptodate)))))))
(defun git-help ()
"Display help for Git mode."
(interactive)
(describe-function 'git-status-mode))
(provide 'git)
;;; git.el ends here