| commit | author | age | ||
| 5cb5f7 | 1 | ;; Copyright (C) 2012-2013 Free Software Foundation, Inc. |
| C | 2 | |
| 3 | ;; Author: Dmitry Gutov <dgutov@yandex.ru> | |
| 4 | ;; URL: https://github.com/dgutov/diff-hl | |
| 5 | ||
| 6 | ;; This file is part of GNU Emacs. | |
| 7 | ||
| 8 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
| 9 | ;; it under the terms of the GNU General Public License as published by | |
| 10 | ;; the Free Software Foundation, either version 3 of the License, or | |
| 11 | ;; (at your option) any later version. | |
| 12 | ||
| 13 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 14 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | ;; GNU General Public License for more details. | |
| 17 | ||
| 18 | ;; You should have received a copy of the GNU General Public License | |
| 19 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. | |
| 20 | ||
| 21 | ;;; Commentary: | |
| 22 | ||
| 23 | ;; Toggle in the current buffer with `M-x diff-hl-amend-mode'. | |
| 24 | ;; Toggle in all buffers with `M-x global-diff-hl-amend-mode'. | |
| 25 | ||
| 26 | ;;; Code: | |
| 27 | ||
| 28 | (require 'diff-hl) | |
| 29 | ||
| 30 | ;;;###autoload | |
| 31 | (define-minor-mode diff-hl-amend-mode | |
| 32 | "Show changes against the second-last revision in `diff-hl-mode'. | |
| 33 | Most useful with backends that support rewriting local commits, | |
| 34 | and most importantly, 'amending' the most recent one. | |
| 35 | Currently only supports Git, Mercurial and Bazaar." | |
| 36 | :lighter " Amend" | |
| 37 | (if diff-hl-amend-mode | |
| 38 | (progn | |
| 39 | (diff-hl-amend-setup) | |
| 40 | (add-hook 'after-revert-hook 'diff-hl-amend-setup nil t)) | |
| 41 | (remove-hook 'after-revert-hook 'diff-hl-amend-setup t) | |
| 42 | (setq-local diff-hl-reference-revision nil)) | |
| 43 | (when diff-hl-mode | |
| 44 | (diff-hl-update))) | |
| 45 | ||
| 46 | (defun diff-hl-amend-setup () | |
| 47 | (let ((backend (vc-backend buffer-file-name))) | |
| 48 | (when backend | |
| 49 | (setq-local diff-hl-reference-revision | |
| 50 | (cl-case backend | |
| 51 | (Git | |
| 52 | "HEAD^") | |
| 53 | (Hg | |
| 54 | "-2") | |
| 55 | (Bzr | |
| 56 | "revno:-2")))))) | |
| 57 | ||
| 58 | ;;;###autoload | |
| 59 | (define-globalized-minor-mode global-diff-hl-amend-mode diff-hl-amend-mode | |
| 60 | turn-on-diff-hl-amend-mode) | |
| 61 | ||
| 62 | (defun turn-on-diff-hl-amend-mode () | |
| 63 | "Turn on `diff-hl-amend-mode' in a buffer if appropriate." | |
| 64 | (and buffer-file-name (diff-hl-amend-mode 1))) | |
| 65 | ||
| 66 | (provide 'diff-hl-amend) | |
| 67 | ||
| 68 | ;;; diff-hl-amend.el ends here | |
