2016-02-24 22:06:01 +00:00
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;;; magit-blame.el --- blame support for Magit -*- lexical-binding: t -*-
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;; Copyright (C) 2012-2016 The Magit Project Contributors
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;;
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;; You should have received a copy of the AUTHORS.md file which
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;; lists all contributors. If not, see http://magit.vc/authors.
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;; Author: Jonas Bernoulli <jonas@bernoul.li>
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;; Maintainer: Jonas Bernoulli <jonas@bernoul.li>
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;; Magit is free software; you can redistribute it and/or modify it
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;; under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;;
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;; Magit is distributed in the hope that it will be useful, but WITHOUT
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;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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;; License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with Magit. If not, see http://www.gnu.org/licenses.
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;;; Commentary:
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;; Annotates each line in file-visiting buffer with information from
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;; the revision which last modified the line.
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;;; Code:
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(require 'magit)
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;;; Options
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(defgroup magit-blame nil
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"Blame support for Magit."
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:group 'magit-extensions)
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(defcustom magit-blame-heading-format "%-20a %C %s"
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"Format string used for blame headings.
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The following placeholders are recognized:
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%H hash
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%s summary
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%a author
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%A author time
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%c committer
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%C committer time
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The author and committer time formats can be specified with
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`magit-blame-time-format'."
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:group 'magit-blame
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:type 'string)
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(defcustom magit-blame-time-format "%F %H:%M"
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"Format for time strings in blame headings."
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:group 'magit-blame
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:type 'string)
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(defcustom magit-blame-show-headings t
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"Whether to initially show blame block headings.
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The headings can also be toggled locally using command
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`magit-blame-toggle-headings'."
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:group 'magit-blame
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:type 'boolean)
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(defcustom magit-blame-disable-modes '(fci-mode yascroll-bar-mode)
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"List of modes not compatible with Magit-Blame mode.
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This modes are turned off when Magit-Blame mode is turned on,
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and then turned on again when turning off the latter."
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:group 'magit-blame
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:type '(repeat (symbol :tag "Mode")))
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(make-variable-buffer-local 'magit-blame-disabled-modes)
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(defcustom magit-blame-mode-lighter " Blame"
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"The mode-line lighter of the Magit-Blame mode."
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:group 'magit-blame
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:type '(choice (const :tag "No lighter" "") string))
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(unless (find-lisp-object-file-name 'magit-blame-goto-chunk-hook 'defvar)
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(add-hook 'magit-blame-goto-chunk-hook 'magit-blame-maybe-update-revision-buffer))
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(defcustom magit-blame-goto-chunk-hook '(magit-blame-maybe-update-revision-buffer)
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"Hook run by `magit-blame-next-chunk' and `magit-blame-previous-chunk'."
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:package-version '(magit . "2.1.0")
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:group 'magit-blame
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:type 'hook
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:options '(magit-blame-maybe-update-revision-buffer))
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(defface magit-blame-heading
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'((((class color) (background light))
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:background "grey80"
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:foreground "black")
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(((class color) (background dark))
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:background "grey25"
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2016-08-18 20:01:20 +00:00
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:foreground "white"))
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2016-02-24 22:06:01 +00:00
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"Face for blame headings."
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:group 'magit-faces)
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(defface magit-blame-summary
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'((t :inherit magit-blame-heading))
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"Face used for commit summary in blame headings."
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:group 'magit-faces)
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(defface magit-blame-hash
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'((t :inherit magit-blame-heading))
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"Face used for commit hash in blame headings."
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:group 'magit-faces)
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(defface magit-blame-name
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'((t :inherit magit-blame-heading))
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"Face used for author and committer names in blame headings."
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:group 'magit-faces)
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(defface magit-blame-date
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'((t :inherit magit-blame-heading))
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"Face used for dates in blame headings."
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:group 'magit-faces)
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;;; Code
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(defvar magit-blame-mode-map
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(let ((map (make-sparse-keymap)))
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(define-key map "\r" 'magit-show-commit)
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(define-key map "\s" 'magit-diff-show-or-scroll-up)
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(define-key map "\d" 'magit-diff-show-or-scroll-down)
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(define-key map "b" 'magit-blame-popup)
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(define-key map "n" 'magit-blame-next-chunk)
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(define-key map "N" 'magit-blame-next-chunk-same-commit)
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(define-key map "p" 'magit-blame-previous-chunk)
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(define-key map "P" 'magit-blame-previous-chunk-same-commit)
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(define-key map "q" 'magit-blame-quit)
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(define-key map "t" 'magit-blame-toggle-headings)
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(define-key map "\M-w" 'magit-blame-copy-hash)
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map)
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"Keymap for `magit-blame-mode'.")
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(defun magit-blame-put-keymap-before-view-mode ()
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"Put `magit-blame-mode' ahead of `view-mode' in `minor-mode-map-alist'."
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(--when-let (assq 'magit-blame-mode
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(cl-member 'view-mode minor-mode-map-alist :key #'car))
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(setq minor-mode-map-alist
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(cons it (delq it minor-mode-map-alist))))
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(remove-hook 'view-mode-hook #'magit-blame-put-keymap-before-view-mode))
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(add-hook 'view-mode-hook #'magit-blame-put-keymap-before-view-mode)
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(defvar-local magit-blame-buffer-read-only nil)
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(defvar-local magit-blame-cache nil)
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(defvar-local magit-blame-process nil)
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(defvar-local magit-blame-recursive-p nil)
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(defvar-local magit-blame-separator nil)
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(define-minor-mode magit-blame-mode
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"Display blame information inline.
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\n\\{magit-blame-mode-map}"
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:lighter magit-blame-mode-lighter
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(cond (magit-blame-mode
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(when (called-interactively-p 'any)
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(setq magit-blame-mode nil)
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(user-error
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(concat "Don't call `magit-blame-mode' directly; "
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"instead use `magit-blame' or `magit-blame-popup'")))
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(setq magit-blame-buffer-read-only buffer-read-only)
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(read-only-mode 1)
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(dolist (mode magit-blame-disable-modes)
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(when (and (boundp mode) (symbol-value mode))
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(funcall mode -1)
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(push mode magit-blame-disabled-modes)))
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(setq magit-blame-separator (magit-blame-format-separator)))
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(t
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(unless magit-blame-buffer-read-only
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(read-only-mode -1))
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(dolist (mode magit-blame-disabled-modes)
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(funcall mode 1))
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(when (process-live-p magit-blame-process)
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(kill-process magit-blame-process))
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(save-excursion
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(save-restriction
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(widen)
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(dolist (ov (overlays-in (point-min) (point-max)))
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(when (overlay-get ov 'magit-blame)
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(delete-overlay ov))))))))
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(defun auto-revert-handler--unless-magit-blame-mode ()
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"If Magit-Blame mode is on, then do nothing. See #1731."
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magit-blame-mode)
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(advice-add 'auto-revert-handler :before-until
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'auto-revert-handler--unless-magit-blame-mode)
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;;;###autoload (autoload 'magit-blame-popup "magit-blame" nil t)
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(magit-define-popup magit-blame-popup
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"Popup console for blame commands."
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'magit-commands
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:man-page "git-blame"
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:switches '((?w "Ignore whitespace" "-w")
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(?r "Do not treat root commits as boundaries" "--root"))
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:options '((?C "Detect lines moved or copied within a file" "-C")
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(?M "Detect lines moved or copied between files" "-M"))
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:actions '((?b "Blame" magit-blame))
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:default-arguments '("-w")
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:default-action 'magit-blame)
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;;;###autoload
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(defun magit-blame (revision file &optional args line)
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"Display edit history of FILE up to REVISION.
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Interactively blame the file being visited in the current buffer.
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If the buffer visits a revision of that file, then blame up to
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that revision, otherwise blame the file's full history, including
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uncommitted changes.
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If Magit-Blame mode is already turned on then blame recursively, by
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visiting REVISION:FILE (using `magit-find-file'), where revision
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is the revision before the revision that added the lines at
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point.
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ARGS is a list of additional arguments to pass to `git blame';
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only arguments available from `magit-blame-popup' should be used.
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\n(fn REVISION FILE &optional ARGS)" ; LINE is for internal use
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(interactive
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(let ((args (magit-blame-arguments)))
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(if magit-blame-mode
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(--if-let (magit-blame-chunk-get :previous-hash)
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(list it (magit-blame-chunk-get :previous-file)
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args (magit-blame-chunk-get :previous-start))
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(user-error "Block has no further history"))
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(--if-let (magit-file-relative-name nil 'tracked)
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(list (or magit-buffer-refname magit-buffer-revision) it args)
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(if buffer-file-name
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(user-error "Buffer isn't visiting a tracked file")
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(user-error "Buffer isn't visiting a file"))))))
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(let ((toplevel (or (magit-toplevel)
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(user-error "Not in git repository"))))
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(let ((default-directory toplevel))
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(if revision
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(magit-find-file revision file)
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(--if-let (find-buffer-visiting file)
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(progn (switch-to-buffer it)
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(save-buffer))
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(find-file file))))
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(let ((default-directory toplevel))
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(widen)
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(when line
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(setq magit-blame-recursive-p t)
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(goto-char (point-min))
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(forward-line (1- line)))
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(unless magit-blame-mode
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(setq magit-blame-cache (make-hash-table :test 'equal))
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(let ((show-headings magit-blame-show-headings))
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(magit-blame-mode 1)
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(setq-local magit-blame-show-headings show-headings))
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(message "Blaming...")
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(let ((magit-process-popup-time -1)
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(inhibit-magit-refresh t))
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(magit-run-git-async
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"blame" "--incremental" args
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"-L" (format "%s,%s"
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(line-number-at-pos (window-start))
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(line-number-at-pos (1- (window-end nil t))))
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revision "--" file))
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(setq magit-blame-process magit-this-process)
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(set-process-filter magit-this-process 'magit-blame-process-filter)
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(set-process-sentinel
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magit-this-process
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`(lambda (process event)
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(when (memq (process-status process) '(exit signal))
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(magit-process-sentinel process event)
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(magit-blame-assert-buffer process)
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(with-current-buffer (process-get process 'command-buf)
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(when magit-blame-mode
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(let ((magit-process-popup-time -1)
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(inhibit-magit-refresh t)
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(default-directory ,default-directory))
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(magit-run-git-async "blame" "--incremental" ,@args
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,revision "--" ,file))
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(setq magit-blame-process magit-this-process)
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(set-process-filter
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magit-this-process 'magit-blame-process-filter)
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(set-process-sentinel
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magit-this-process 'magit-blame-process-sentinel))))))))))
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(defun magit-blame-process-sentinel (process event)
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(let ((status (process-status process)))
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(when (memq status '(exit signal))
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(magit-process-sentinel process event)
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(if (eq status 'exit)
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(message "Blaming...done")
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(magit-blame-assert-buffer process)
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(with-current-buffer (process-get process 'command-buf)
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(magit-blame-mode -1))
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|
|
|
(message "Blaming...failed")))))
|
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|
(defvar magit-blame-log nil
|
|
|
|
|
"Whether to log blame output to the process buffer.
|
|
|
|
|
This is intended for debugging purposes.")
|
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|
(defun magit-blame-process-filter (process string)
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|
(when magit-blame-log
|
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|
|
|
(magit-process-filter process string))
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|
(--when-let (process-get process 'partial-line)
|
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|
(setq string (concat it string))
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|
|
(setf (process-get process 'partial-line) nil))
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|
(magit-blame-assert-buffer process)
|
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|
(with-current-buffer (process-get process 'command-buf)
|
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|
|
(when magit-blame-mode
|
|
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|
(let ((chunk (process-get process 'chunk))
|
|
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|
(lines (split-string string "\n" t)))
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(unless (string-match-p "\n\\'" string)
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|
(process-put process 'chunk chunk)
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|
(process-put process 'partial-line (car (last lines)))
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(setq lines (butlast lines)))
|
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|
|
|
(dolist (line lines)
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|
(cond
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|
((equal line ""))
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|
((not chunk)
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|
(string-match
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|
"^\\(.\\{40\\}\\) \\([0-9]+\\) \\([0-9]+\\) \\([0-9]+\\)" line)
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|
(setq chunk
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|
(list :hash (let ((hash (match-string 1 line)))
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|
(unless (equal hash (make-string 40 ?0))
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|
hash))
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|
:previous-start (string-to-number (match-string 2 line))
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|
:start (string-to-number (match-string 3 line))
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|
|
:lines (string-to-number (match-string 4 line)))))
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|
|
((string-match "^filename \\(.+\\)" line)
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|
|
(let* ((hash (plist-get chunk :hash))
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|
|
(file (match-string 1 line)))
|
|
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|
|
(--if-let (gethash hash magit-blame-cache)
|
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|
|
|
(setq chunk (nconc chunk it))
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|
|
(plist-put chunk :filename file)
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|
|
|
(puthash hash chunk magit-blame-cache)))
|
|
|
|
|
(magit-blame-make-overlay chunk)
|
|
|
|
|
(setq chunk nil))
|
|
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|
|
((string-match "^previous \\(.\\{40\\}\\) \\(.+\\)" line)
|
|
|
|
|
(plist-put chunk :previous-hash (match-string 1 line))
|
|
|
|
|
(plist-put chunk :previous-file (match-string 2 line)))
|
|
|
|
|
((string-match "^\\([^ ]+?-mail\\) <\\([^>]+\\)>" line)
|
|
|
|
|
(plist-put chunk (intern (concat ":" (match-string 1 line)))
|
|
|
|
|
(string-to-number (match-string 2 line))))
|
|
|
|
|
((string-match "^\\([^ ]+?-\\(?:time\\|tz\\)\\) \\(.+\\)" line)
|
|
|
|
|
(plist-put chunk (intern (concat ":" (match-string 1 line)))
|
|
|
|
|
(string-to-number (match-string 2 line))))
|
|
|
|
|
((string-match "^\\([^ ]+\\) \\(.+\\)" line)
|
|
|
|
|
(plist-put chunk (intern (concat ":" (match-string 1 line)))
|
|
|
|
|
(match-string 2 line))))
|
|
|
|
|
(process-put process 'chunk chunk))))))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-assert-buffer (process)
|
|
|
|
|
(unless (buffer-live-p (process-get process 'command-buf))
|
|
|
|
|
(kill-process process)
|
|
|
|
|
(user-error "Buffer being blamed has been killed")))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-make-overlay (chunk)
|
|
|
|
|
(let ((ov (save-excursion
|
|
|
|
|
(save-restriction
|
|
|
|
|
(widen)
|
|
|
|
|
(goto-char (point-min))
|
|
|
|
|
(forward-line (1- (plist-get chunk :start)))
|
|
|
|
|
(--when-let (--first (overlay-get it 'magit-blame)
|
|
|
|
|
(overlays-at (point)))
|
|
|
|
|
(delete-overlay it))
|
|
|
|
|
(make-overlay (point)
|
|
|
|
|
(progn (forward-line
|
|
|
|
|
(plist-get chunk :lines))
|
|
|
|
|
(point))))))
|
|
|
|
|
(heading (magit-blame-format-heading chunk)))
|
|
|
|
|
(overlay-put ov 'magit-blame chunk)
|
|
|
|
|
(overlay-put ov 'magit-blame-heading heading)
|
|
|
|
|
(overlay-put ov 'before-string
|
|
|
|
|
(if magit-blame-show-headings
|
|
|
|
|
heading
|
|
|
|
|
magit-blame-separator))))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-format-separator ()
|
|
|
|
|
(propertize
|
|
|
|
|
(concat (propertize " " 'display '(space :height (2)))
|
|
|
|
|
(propertize "\n" 'line-height t))
|
|
|
|
|
'face (list :background (face-attribute 'magit-blame-heading :background))))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-format-heading (chunk)
|
|
|
|
|
(with-temp-buffer
|
|
|
|
|
(insert (format-spec
|
|
|
|
|
(concat magit-blame-heading-format "\n")
|
|
|
|
|
`((?H . ,(propertize (or (plist-get chunk :hash) "")
|
|
|
|
|
'face 'magit-blame-hash))
|
|
|
|
|
(?s . ,(propertize (or (plist-get chunk :summary) "")
|
|
|
|
|
'face 'magit-blame-summary))
|
|
|
|
|
(?a . ,(propertize (or (plist-get chunk :author) "")
|
|
|
|
|
'face 'magit-blame-name))
|
|
|
|
|
(?A . ,(propertize (magit-blame-format-time-string
|
|
|
|
|
magit-blame-time-format
|
|
|
|
|
(plist-get chunk :author-time)
|
|
|
|
|
(plist-get chunk :author-tz))
|
|
|
|
|
'face 'magit-blame-date))
|
|
|
|
|
(?c . ,(propertize (or (plist-get chunk :committer) "")
|
|
|
|
|
'face 'magit-blame-name))
|
|
|
|
|
(?C . ,(propertize (magit-blame-format-time-string
|
|
|
|
|
magit-blame-time-format
|
|
|
|
|
(plist-get chunk :committer-time)
|
|
|
|
|
(plist-get chunk :committer-tz))
|
|
|
|
|
'face 'magit-blame-date)))))
|
|
|
|
|
(goto-char (point-min))
|
|
|
|
|
(while (not (eobp))
|
|
|
|
|
(let ((face (get-text-property (point) 'face))
|
|
|
|
|
(next (or (next-single-property-change (point) 'face)
|
|
|
|
|
(point-max))))
|
|
|
|
|
(unless face
|
|
|
|
|
(put-text-property (point) next 'face 'magit-blame-heading))
|
|
|
|
|
(goto-char next)))
|
|
|
|
|
(buffer-string)))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-format-time-string (format time tz)
|
|
|
|
|
(format-time-string
|
|
|
|
|
format (seconds-to-time (+ time (* (/ tz 100) 60 60) (* (% tz 100) 60)))))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-quit ()
|
|
|
|
|
"Turn off Magit-Blame mode.
|
|
|
|
|
If the buffer was created during a recursive blame,
|
|
|
|
|
then also kill the buffer."
|
|
|
|
|
(interactive)
|
|
|
|
|
(if magit-blame-recursive-p
|
|
|
|
|
(kill-buffer)
|
|
|
|
|
(magit-blame-mode -1)))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-next-chunk ()
|
|
|
|
|
"Move to the next chunk."
|
|
|
|
|
(interactive)
|
|
|
|
|
(--if-let (next-single-char-property-change (point) 'magit-blame)
|
|
|
|
|
(progn (goto-char it)
|
|
|
|
|
(run-hooks 'magit-blame-goto-chunk-hook))
|
|
|
|
|
(user-error "No more chunks")))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-previous-chunk ()
|
|
|
|
|
"Move to the previous chunk."
|
|
|
|
|
(interactive)
|
|
|
|
|
(--if-let (previous-single-char-property-change (point) 'magit-blame)
|
|
|
|
|
(progn (goto-char it)
|
|
|
|
|
(run-hooks 'magit-blame-goto-chunk-hook))
|
|
|
|
|
(user-error "No more chunks")))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-next-chunk-same-commit (&optional previous)
|
|
|
|
|
"Move to the next chunk from the same commit.\n\n(fn)"
|
|
|
|
|
(interactive)
|
|
|
|
|
(-if-let (hash (magit-blame-chunk-get :hash))
|
|
|
|
|
(let ((pos (point)) ov)
|
|
|
|
|
(save-excursion
|
|
|
|
|
(while (and (not ov)
|
|
|
|
|
(not (= pos (if previous (point-min) (point-max))))
|
|
|
|
|
(setq pos (funcall
|
|
|
|
|
(if previous
|
|
|
|
|
'previous-single-char-property-change
|
|
|
|
|
'next-single-char-property-change)
|
|
|
|
|
pos 'magit-blame)))
|
|
|
|
|
(--when-let (magit-blame-overlay-at pos)
|
|
|
|
|
(when (equal (magit-blame-chunk-get :hash pos) hash)
|
|
|
|
|
(setq ov it)))))
|
|
|
|
|
(if ov
|
|
|
|
|
(goto-char (overlay-start ov))
|
|
|
|
|
(user-error "No more chunks from same commit")))
|
|
|
|
|
(user-error "This chunk hasn't been blamed yet")))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-previous-chunk-same-commit ()
|
|
|
|
|
"Move to the previous chunk from the same commit."
|
|
|
|
|
(interactive)
|
|
|
|
|
(magit-blame-next-chunk-same-commit 'previous-single-char-property-change))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-toggle-headings ()
|
|
|
|
|
"Show or hide blame chunk headings."
|
|
|
|
|
(interactive)
|
|
|
|
|
(setq-local magit-blame-show-headings (not magit-blame-show-headings))
|
|
|
|
|
(save-excursion
|
|
|
|
|
(save-restriction
|
|
|
|
|
(widen)
|
|
|
|
|
(goto-char (point-min))
|
|
|
|
|
(while (not (eobp))
|
|
|
|
|
(let ((next (next-single-char-property-change (point) 'magit-blame)))
|
|
|
|
|
(--when-let (magit-blame-overlay-at (point))
|
|
|
|
|
(overlay-put it 'before-string
|
|
|
|
|
(if magit-blame-show-headings
|
|
|
|
|
(overlay-get it 'magit-blame-heading)
|
|
|
|
|
magit-blame-separator)))
|
|
|
|
|
(goto-char (or next (point-max))))))))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-copy-hash ()
|
2016-08-18 20:01:20 +00:00
|
|
|
"Save hash of the current chunk's commit to the kill ring.
|
|
|
|
|
|
|
|
|
|
When the region is active, then save that to the `kill-ring',
|
|
|
|
|
like `kill-ring-save' would."
|
2016-02-24 22:06:01 +00:00
|
|
|
(interactive)
|
2016-06-29 07:21:54 +00:00
|
|
|
(if (use-region-p)
|
|
|
|
|
(copy-region-as-kill nil nil 'region)
|
|
|
|
|
(kill-new (message "%s" (magit-blame-chunk-get :hash)))))
|
2016-02-24 22:06:01 +00:00
|
|
|
|
|
|
|
|
(defun magit-blame-chunk-get (key &optional pos)
|
|
|
|
|
(--when-let (magit-blame-overlay-at pos)
|
|
|
|
|
(plist-get (overlay-get it 'magit-blame) key)))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-overlay-at (&optional pos)
|
|
|
|
|
(--first (overlay-get it 'magit-blame)
|
|
|
|
|
(overlays-at (or pos (point)))))
|
|
|
|
|
|
|
|
|
|
(defun magit-blame-maybe-update-revision-buffer ()
|
|
|
|
|
(unless magit--update-revision-buffer
|
|
|
|
|
(setq magit--update-revision-buffer nil)
|
|
|
|
|
(-when-let* ((commit (magit-blame-chunk-get :hash))
|
|
|
|
|
(buffer (magit-mode-get-buffer 'magit-revision-mode nil t)))
|
|
|
|
|
(setq magit--update-revision-buffer (list commit buffer))
|
|
|
|
|
(run-with-idle-timer
|
|
|
|
|
magit-update-other-window-delay nil
|
|
|
|
|
(lambda ()
|
|
|
|
|
(-let [(rev buf) magit--update-revision-buffer]
|
|
|
|
|
(setq magit--update-revision-buffer nil)
|
|
|
|
|
(when (buffer-live-p buf)
|
|
|
|
|
(let ((magit-display-buffer-noselect t))
|
|
|
|
|
(apply #'magit-show-commit rev (magit-diff-arguments))))))))))
|
|
|
|
|
|
|
|
|
|
;;; magit-blame.el ends soon
|
|
|
|
|
(provide 'magit-blame)
|
|
|
|
|
;; Local Variables:
|
|
|
|
|
;; indent-tabs-mode: nil
|
|
|
|
|
;; End:
|
|
|
|
|
;;; magit-blame.el ends here
|
