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git-blame.el: Change how blame information is shown.
It is more customizable, and uses a line prefix to show the commit. Signed-off-by: David Kågedal <davidk@lysator.liu.se> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This commit is contained in:
David Kågedal
Shawn O. Pearce
parent
1be224ba6e
commit
c5022f576a
@ -80,6 +80,57 @@
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(eval-when-compile (require 'cl)) ; to use `push', `pop'
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(defface git-blame-prefix-face
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'((((background dark)) (:foreground "gray"
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:background "black"))
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(((background light)) (:foreground "gray"
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:background "white"))
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(t (:weight bold)))
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"The face used for the hash prefix."
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:group 'git-blame)
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(defgroup git-blame nil
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"A minor mode showing Git blame information."
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:group 'git
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:link '(function-link git-blame-mode))
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(defcustom git-blame-use-colors t
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"Use colors to indicate commits in `git-blame-mode'."
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:type 'boolean
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:group 'git-blame)
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(defcustom git-blame-prefix-format
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"%h %20A:"
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"The format of the prefix added to each line in `git-blame'
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mode. The format is passed to `format-spec' with the following format keys:
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%h - the abbreviated hash
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%H - the full hash
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%a - the author name
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%A - the author email
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%c - the committer name
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%C - the committer email
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%s - the commit summary
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"
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:group 'git-blame)
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(defcustom git-blame-mouseover-format
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"%h %a %A: %s"
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"The format of the description shown when pointing at a line in
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`git-blame' mode. The format string is passed to `format-spec'
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with the following format keys:
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%h - the abbreviated hash
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%H - the full hash
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%a - the author name
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%A - the author email
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%c - the committer name
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%C - the committer email
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%s - the commit summary
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"
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:group 'git-blame)
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(defun git-blame-color-scale (&rest elements)
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"Given a list, returns a list of triples formed with each
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@ -302,72 +353,69 @@ See also function `git-blame-mode'."
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(src-line (string-to-number (match-string 2)))
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(res-line (string-to-number (match-string 3)))
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(num-lines (string-to-number (match-string 4))))
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(setq git-blame-current
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(if (string= hash "0000000000000000000000000000000000000000")
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nil
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(git-blame-new-commit
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hash src-line res-line num-lines))))
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(delete-region (point) (match-end 0))
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t)
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((looking-at "filename \\(.+\\)\n")
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(let ((filename (match-string 1)))
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(git-blame-add-info "filename" filename))
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(delete-region (point) (match-end 0))
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(delete-region (point) (match-end 0))
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(setq git-blame-current (list (git-blame-new-commit hash)
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src-line res-line num-lines)))
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t)
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((looking-at "\\([a-z-]+\\) \\(.+\\)\n")
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(let ((key (match-string 1))
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(value (match-string 2)))
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(git-blame-add-info key value))
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(delete-region (point) (match-end 0))
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t)
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((looking-at "boundary\n")
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(setq git-blame-current nil)
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(delete-region (point) (match-end 0))
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(delete-region (point) (match-end 0))
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(git-blame-add-info (car git-blame-current) key value)
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(when (string= key "filename")
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(git-blame-create-overlay (car git-blame-current)
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(caddr git-blame-current)
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(cadddr git-blame-current))
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(setq git-blame-current nil)))
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t)
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(t
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nil)))
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(defun git-blame-new-commit (hash src-line res-line num-lines)
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(defun git-blame-new-commit (hash)
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(with-current-buffer git-blame-file
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(or (gethash hash git-blame-cache)
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;; Assign a random color to each new commit info
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;; Take care not to select the same color multiple times
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(let* ((color (if git-blame-colors
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(git-blame-random-pop git-blame-colors)
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git-blame-ancient-color))
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(info `(,hash (color . ,color))))
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(puthash hash info git-blame-cache)
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info))))
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(defun git-blame-create-overlay (info start-line num-lines)
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(save-excursion
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(set-buffer git-blame-file)
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(let ((info (gethash hash git-blame-cache))
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(inhibit-point-motion-hooks t)
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(let ((inhibit-point-motion-hooks t)
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(inhibit-modification-hooks t))
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(when (not info)
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;; Assign a random color to each new commit info
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;; Take care not to select the same color multiple times
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(let ((color (if git-blame-colors
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(git-blame-random-pop git-blame-colors)
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git-blame-ancient-color)))
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(setq info (list hash src-line res-line num-lines
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(git-describe-commit hash)
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(cons 'color color))))
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(puthash hash info git-blame-cache))
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(goto-line res-line)
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(while (> num-lines 0)
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(if (get-text-property (point) 'git-blame)
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(forward-line)
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(let* ((start (point))
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(end (progn (forward-line 1) (point)))
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(ovl (make-overlay start end)))
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(push ovl git-blame-overlays)
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(overlay-put ovl 'git-blame info)
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(overlay-put ovl 'help-echo hash)
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(goto-line start-line)
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(let* ((start (point))
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(end (progn (forward-line num-lines) (point)))
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(ovl (make-overlay start end))
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(hash (car info))
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(spec `((?h . ,(substring hash 0 6))
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(?H . ,hash)
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(?a . ,(git-blame-get-info info 'author))
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(?A . ,(git-blame-get-info info 'author-mail))
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(?c . ,(git-blame-get-info info 'committer))
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(?C . ,(git-blame-get-info info 'committer-mail))
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(?s . ,(git-blame-get-info info 'summary)))))
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(push ovl git-blame-overlays)
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(overlay-put ovl 'git-blame info)
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(overlay-put ovl 'help-echo
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(format-spec git-blame-mouseover-format spec))
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(if git-blame-use-colors
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(overlay-put ovl 'face (list :background
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(cdr (assq 'color (nthcdr 5 info)))))
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;; the point-entered property doesn't seem to work in overlays
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;;(overlay-put ovl 'point-entered
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;; `(lambda (x y) (git-blame-identify ,hash)))
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(let ((modified (buffer-modified-p)))
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(put-text-property (if (= start 1) start (1- start)) (1- end)
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'point-entered
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`(lambda (x y) (git-blame-identify ,hash)))
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(set-buffer-modified-p modified))))
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(setq num-lines (1- num-lines))))))
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(cdr (assq 'color (cdr info))))))
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(overlay-put ovl 'line-prefix
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(propertize (format-spec git-blame-prefix-format spec)
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'face 'git-blame-prefix-face))))))
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(defun git-blame-add-info (key value)
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(if git-blame-current
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(nconc git-blame-current (list (cons (intern key) value)))))
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(defun git-blame-add-info (info key value)
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(nconc info (list (cons (intern key) value))))
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(defun git-blame-get-info (info key)
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(cdr (assq key (cdr info))))
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(defun git-blame-current-commit ()
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(let ((info (get-char-property (point) 'git-blame)))
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