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git-blame.el: Autoupdate while editing

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This adds the support for automatically updating the buffer while editing.
A configuration variable git-blame-autoupdate controls whether this should
be enabled or not.

Signed-off-by: David Kågedal <davidk@lysator.liu.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
David Kågedal 2007-02-09 09:22:19 +01:00 committed by Junio C Hamano
parent 96df551cb8
commit d2589855df
1 changed files with 86 additions and 9 deletions
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95
contrib/emacs/git-blame.el
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@ -102,6 +102,9 @@
(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)
@ -114,6 +117,14 @@
"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)
@ -129,6 +140,9 @@
(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
@ -137,7 +151,8 @@
(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))))
(git-blame-run))
(cancel-timer git-blame-idle-timer)))
;;;###autoload
(defun git-reblame ()
@ -148,18 +163,24 @@
(git-blame-cleanup)
(git-blame-run))
(defun 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)))))
(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
(start-process "git-blame" blame-buf
"git" "blame"
"--incremental" "--contents" "-"
(file-name-nondirectory buffer-file-name)))
(apply 'start-process
"git-blame" blame-buf
"git" "blame"
args))
(with-current-buffer blame-buf
(erase-buffer)
(make-local-variable 'git-blame-file)
@ -183,10 +204,28 @@
(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)))
(setq git-blame-proc nil)
(if git-blame-update-queue
(git-blame-delayed-update))))
;;(kill-buffer (process-buffer proc))
;;(message "git blame finished")
)
@ -241,7 +280,8 @@
(save-excursion
(set-buffer git-blame-file)
(let ((info (gethash hash git-blame-cache))
(inhibit-point-motion-hooks t))
(inhibit-point-motion-hooks t)
(inhibit-modification-hooks t))
(when (not info)
(let ((color (pop git-blame-colors)))
(unless color
@ -298,6 +338,43 @@
(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