-;; Copyright (C) 2012-2013 Free Software Foundation, Inc.
+;; Copyright (C) 2015 Free Software Foundation, Inc.
;; Author: Jonathan Hayase <PythonNut@gmail.com>
;; URL: https://github.com/dgutov/diff-hl
;;; Code:
(require 'diff-hl)
-(require 'nadvice)
+(require 'diff)
+(unless (require 'nadvice nil t)
+ (error "`diff-hl-flydiff-mode' requires Emacs 24.4 or newer"))
(defvar diff-hl-flydiff-modified-tick 0)
(defvar diff-hl-flydiff-timer)
(make-variable-buffer-local 'diff-hl-flydiff-modified-tick)
+(defun diff-hl-flydiff/vc-git--symbolic-ref (file)
+ (or
+ (vc-file-getprop file 'vc-git-symbolic-ref)
+ (let* (process-file-side-effects
+ (str (vc-git--run-command-string nil "symbolic-ref" "HEAD")))
+ (vc-file-setprop file 'vc-git-symbolic-ref
+ (if str
+ (if (string-match "^\\(refs/heads/\\)?\\(.+\\)$" str)
+ (match-string 2 str)
+ str))))))
+
+(defun diff-hl-flydiff/vc-git-working-revision (_file)
+ "Git-specific version of `vc-working-revision'."
+ (let (process-file-side-effects)
+ (vc-git--rev-parse "HEAD")))
+
+(defun diff-hl-flydiff/vc-git-mode-line-string (file)
+ "Return a string for `vc-mode-line' to put in the mode line for FILE."
+ (let* ((rev (vc-working-revision file))
+ (disp-rev (or (diff-hl-flydiff/vc-git--symbolic-ref file)
+ (substring rev 0 7)))
+ (def-ml (vc-default-mode-line-string 'Git file))
+ (help-echo (get-text-property 0 'help-echo def-ml))
+ (face (get-text-property 0 'face def-ml)))
+ (propertize (replace-regexp-in-string (concat rev "\\'") disp-rev def-ml t t)
+ 'face face
+ 'help-echo (concat help-echo "\nCurrent revision: " rev))))
+
;; Polyfill concrete revisions for vc-git-working-revision in Emacs 24.4, 24.5
(when (version<= emacs-version "25.0")
(with-eval-after-load 'vc-git
- (defun vc-git--symbolic-ref (file)
- (or
- (vc-file-getprop file 'vc-git-symbolic-ref)
- (let* (process-file-side-effects
- (str (vc-git--run-command-string nil "symbolic-ref" "HEAD")))
- (vc-file-setprop file 'vc-git-symbolic-ref
- (if str
- (if (string-match "^\\(refs/heads/\\)?\\(.+\\)$" str)
- (match-string 2 str)
- str))))))
-
- (defun diff-hl-flydiff/vc-git-working-revision (_file)
- "Git-specific version of `vc-working-revision'."
- (let (process-file-side-effects)
- (vc-git--rev-parse "HEAD")))
-
- (defun diff-hl-flydiff/vc-git-mode-line-string (file)
- "Return a string for `vc-mode-line' to put in the mode line for FILE."
- (let* ((rev (vc-working-revision file))
- (disp-rev (or (vc-git--symbolic-ref file)
- (substring rev 0 7)))
- (def-ml (vc-default-mode-line-string 'Git file))
- (help-echo (get-text-property 0 'help-echo def-ml)))
- (propertize (replace-regexp-in-string (concat rev "\\'") disp-rev def-ml t t)
- 'help-echo (concat help-echo "\nCurrent revision: " rev))))
-
(advice-add 'vc-git-working-revision :override
- #'diff-hl-flydiff/vc-git-working-revision)
+ #'diff-hl-flydiff/vc-git-working-revision)
(advice-add 'vc-git-mode-line-string :override
- #'diff-hl-flydiff/vc-git-mode-line-string)))
+ #'diff-hl-flydiff/vc-git-mode-line-string)))
+
+(defun diff-hl-flydiff/working-revision (file)
+ "Like vc-working-revision, but always up-to-date"
+ (vc-file-setprop file 'vc-working-revision
+ (vc-call-backend (vc-backend file) 'working-revision file)))
(defun diff-hl-flydiff-make-temp-file-name (file rev &optional manual)
"Return a backup file name for REV or the current version of FILE.
(delete-file filename)))))))
filename))
-(defun diff-hl-flydiff-buffer-with-head ()
+(defun diff-hl-flydiff-buffer-with-head (file &optional backend)
"View the differences between BUFFER and its associated file.
This requires the external program `diff' to be in your `exec-path'."
(interactive)
(vc-ensure-vc-buffer)
(with-current-buffer (get-buffer (current-buffer))
- (let* ((file buffer-file-name)
- (temporary-file-directory
- (if (file-directory-p "/dev/shm/")
- "/dev/shm/"
- temporary-file-directory))
- (rev (diff-hl-flydiff-create-revision
- file
- (vc-working-revision file
- (vc-responsible-backend file)))))
- (diff-no-select rev (current-buffer) "-U 0" 'noasync
+ (let* ((temporary-file-directory
+ (if (file-directory-p "/dev/shm/")
+ "/dev/shm/"
+ temporary-file-directory))
+ (rev (diff-hl-flydiff-create-revision file
+ (diff-hl-flydiff/working-revision file))))
+ (diff-no-select rev (current-buffer) "-U 0 --strip-trailing-cr" 'noasync
(get-buffer-create " *diff-hl-diff*")))))
-
(defun diff-hl-flydiff/update (old-fun &optional auto)
(unless (and auto
(or
(not (buffer-modified-p))))
(funcall old-fun)))
-(defun diff-hl-flydiff/changes (&rest args)
- (let* ((file buffer-file-name)
- (backend (vc-backend file)))
- (when backend
- (let ((state (vc-state file backend)))
- (cond
- ((or
- (buffer-modified-p)
- (eq state 'edited)
- (and (eq state 'up-to-date)
- ;; VC state is stale in after-revert-hook.
- (or revert-buffer-in-progress-p
- ;; Diffing against an older revision.
- diff-hl-reference-revision)))
- (let (diff-auto-refine-mode res)
- (with-current-buffer (diff-hl-flydiff-buffer-with-head)
- (goto-char (point-min))
- (unless (eobp)
- (ignore-errors
- (diff-beginning-of-hunk t))
- (while (looking-at diff-hunk-header-re-unified)
- (let ((line (string-to-number (match-string 3)))
- (len (let ((m (match-string 4)))
- (if m (string-to-number m) 1)))
- (beg (point)))
- (diff-end-of-hunk)
- (let* ((inserts (diff-count-matches "^\\+" beg (point)))
- (deletes (diff-count-matches "^-" beg (point)))
- (type (cond ((zerop deletes) 'insert)
- ((zerop inserts) 'delete)
- (t 'change))))
- (when (eq type 'delete)
- (setq len 1)
- (cl-incf line))
- (push (list line len type) res))))))
- (setq diff-hl-flydiff-modified-tick (buffer-modified-tick))
- (nreverse res)))
- ((eq state 'added)
- `((1 ,(line-number-at-pos (point-max)) insert)))
- ((eq state 'removed)
- `((1 ,(line-number-at-pos (point-max)) delete))))))))
+(defun diff-hl-flydiff/modified-p (state)
+ (buffer-modified-p))
+
+(defun diff-hl-flydiff/update-modified-tick (&rest args)
+ (setq diff-hl-flydiff-modified-tick (buffer-modified-tick)))
;;;###autoload
(define-minor-mode diff-hl-flydiff-mode
(if diff-hl-flydiff-mode
(progn
(advice-add 'diff-hl-update :around #'diff-hl-flydiff/update)
- (advice-add 'diff-hl-changes :override #'diff-hl-flydiff/changes)
- (advice-add 'diff-hl-overlay-modified :override #'ignored)
+ (advice-add 'diff-hl-overlay-modified :override #'ignore)
+
+ (advice-add 'diff-hl-modified-p :before-until
+ #'diff-hl-flydiff/modified-p)
+ (advice-add 'diff-hl-changes-buffer :override
+ #'diff-hl-flydiff-buffer-with-head)
+ (advice-add 'diff-hl-change :after
+ #'diff-hl-flydiff/update-modified-tick)
(setq diff-hl-flydiff-timer
(run-with-idle-timer 0.3 t #'diff-hl-update t)))
(advice-remove 'diff-hl-update #'diff-hl-flydiff/update)
- (advice-remove 'diff-hl-changes #'diff-hl-flydiff/changes)
- (advice-remove 'diff-hl-overlay-modified #'ignored)
+ (advice-remove 'diff-hl-overlay-modified #'ignore)
+
+ (advice-remove 'diff-hl-modified-p #'diff-hl-flydiff/modified-p)
+ (advice-remove 'diff-hl-changes-buffer #'diff-hl-flydiff-buffer-with-head)
+ (advice-remove 'diff-hl-change #'diff-hl-flydiff/update-modified-tick)
(cancel-timer diff-hl-flydiff-timer)))