mirror of
https://git.savannah.gnu.org/git/emacs.git
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2412ee1af6
use it. (log-view-diff-changeset): Same. (log-view-diff-common): Call backend command `previous-revision' to find out the previous revision, in both cases. Swap the variables `to' and `fr', so that `fr' usually refers to the earlier revision. Fixes: debbugs:14989
607 lines
22 KiB
EmacsLisp
607 lines
22 KiB
EmacsLisp
;;; log-view.el --- Major mode for browsing revision log histories -*- lexical-binding: t -*-
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;; Copyright (C) 1999-2013 Free Software Foundation, Inc.
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;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
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;; Keywords: tools, vc
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Major mode to browse revision log histories.
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;; Currently supports the format output by:
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;; SCCS, RCS, CVS, Subversion, DaRCS, and Mercurial.
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;; Examples of log output:
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;;;; SCCS:
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;;;; RCS/CVS:
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;; ----------------------------
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;; revision 1.35 locked by: turlutut
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;; date: 2005-03-22 18:48:38 +0000; author: monnier; state: Exp; lines: +6 -8
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;; (gnus-display-time-event-handler):
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;; Check display-time-timer at runtime rather than only at load time
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;; in case display-time-mode is turned off in the mean time.
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;; ----------------------------
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;; revision 1.34
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;; date: 2005-02-09 15:50:38 +0000; author: kfstorm; state: Exp; lines: +7 -7
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;; branches: 1.34.2;
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;; Change release version from 21.4 to 22.1 throughout.
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;; Change development version from 21.3.50 to 22.0.50.
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;;;; Subversion:
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;; ------------------------------------------------------------------------
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;; r4622 | ckuethe | 2007-12-23 18:18:01 -0500 (Sun, 23 Dec 2007) | 2 lines
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;;
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;; uBlox AEK-4T in binary mode. Added to unstable because it breaks gpsfake
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;;
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;; ------------------------------------------------------------------------
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;; r4621 | ckuethe | 2007-12-23 16:48:11 -0500 (Sun, 23 Dec 2007) | 3 lines
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;;
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;; Add a note about requiring usbfs to use the garmin gps18 (usb)
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;; Mention firmware testing the AC12 with firmware BQ00 and BQ04
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;;
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;; ------------------------------------------------------------------------
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;; r4620 | ckuethe | 2007-12-23 15:52:34 -0500 (Sun, 23 Dec 2007) | 1 line
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;;
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;; add link to latest hardware reference
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;; ------------------------------------------------------------------------
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;; r4619 | ckuethe | 2007-12-23 14:37:31 -0500 (Sun, 23 Dec 2007) | 1 line
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;;
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;; there is now a regression test for AC12 without raw data output
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;;;; Darcs:
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;; Changes to darcsum.el:
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;;
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;; Mon Nov 28 15:19:38 GMT 2005 Dave Love <fx@gnu.org>
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;; * Abstract process startup into darcsum-start-process. Use TERM=dumb.
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;; TERM=dumb avoids escape characters, at least, for any old darcs that
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;; doesn't understand DARCS_DONT_COLOR & al.
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;;
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;; Thu Nov 24 15:20:45 GMT 2005 Dave Love <fx@gnu.org>
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;; * darcsum-mode-related changes.
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;; Don't call font-lock-mode (unnecessary) or use-local-map (redundant).
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;; Use mode-class 'special. Add :group.
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;; Add trailing-whitespace option to mode hook and fix
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;; darcsum-display-changeset not to use trailing whitespace.
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;;;; Mercurial
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;; changeset: 11:8ff1a4166444
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;; tag: tip
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;; user: Eric S. Raymond <esr@thyrsus.com>
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;; date: Wed Dec 26 12:18:58 2007 -0500
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;; summary: Explain keywords. Add markup fixes.
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;;
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;; changeset: 10:20abc7ab09c3
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;; user: Eric S. Raymond <esr@thyrsus.com>
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;; date: Wed Dec 26 11:37:28 2007 -0500
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;; summary: Typo fixes.
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;;
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;; changeset: 9:ada9f4da88aa
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;; user: Eric S. Raymond <esr@thyrsus.com>
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;; date: Wed Dec 26 11:23:00 2007 -0500
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;; summary: Add RCS example session.
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;;; Todo:
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;; - add ability to modify a log-entry (via cvs-mode-admin ;-)
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;; - remove references to cvs-*
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;; - make it easier to add support for new backends without changing the code.
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;;; Code:
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(require 'pcvs-util)
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(autoload 'vc-find-revision "vc")
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(autoload 'vc-diff-internal "vc")
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(defvar cvs-minor-wrap-function)
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(defvar cvs-force-command)
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(defgroup log-view nil
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"Major mode for browsing log output of revision log histories."
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:group 'pcl-cvs
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:prefix "log-view-")
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(easy-mmode-defmap log-view-mode-map
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'(
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("-" . negative-argument)
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("0" . digit-argument)
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("1" . digit-argument)
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("2" . digit-argument)
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("3" . digit-argument)
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("4" . digit-argument)
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("5" . digit-argument)
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("6" . digit-argument)
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("7" . digit-argument)
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("8" . digit-argument)
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("9" . digit-argument)
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("\C-m" . log-view-toggle-entry-display)
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("m" . log-view-toggle-mark-entry)
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("e" . log-view-modify-change-comment)
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("d" . log-view-diff)
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("=" . log-view-diff)
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("D" . log-view-diff-changeset)
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("a" . log-view-annotate-version)
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("f" . log-view-find-revision)
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("n" . log-view-msg-next)
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("p" . log-view-msg-prev)
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("\t" . log-view-msg-next)
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([backtab] . log-view-msg-prev)
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("N" . log-view-file-next)
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("P" . log-view-file-prev)
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("\M-n" . log-view-file-next)
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("\M-p" . log-view-file-prev))
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"Log-View's keymap."
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:inherit special-mode-map
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:group 'log-view)
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(easy-menu-define log-view-mode-menu log-view-mode-map
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"Log-View Display Menu"
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`("Log-View"
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;; XXX Do we need menu entries for these?
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;; ["Quit" quit-window]
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;; ["Kill This Buffer" kill-this-buffer]
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["Mark Log Entry for Diff" set-mark-command
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:help ""]
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["Diff Revisions" log-view-diff
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:help "Get the diff between two revisions"]
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["Changeset Diff" log-view-diff-changeset
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:help "Get the changeset diff between two revisions"]
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["Visit Version" log-view-find-revision
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:help "Visit the version at point"]
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["Annotate Version" log-view-annotate-version
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:help "Annotate the version at point"]
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["Modify Log Comment" log-view-modify-change-comment
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:help "Edit the change comment displayed at point"]
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["Toggle Details at Point" log-view-toggle-entry-display
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:active log-view-expanded-log-entry-function]
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"-----"
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["Next Log Entry" log-view-msg-next
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:help "Go to the next count'th log message"]
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["Previous Log Entry" log-view-msg-prev
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:help "Go to the previous count'th log message"]
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["Next File" log-view-file-next
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:help "Go to the next count'th file"]
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["Previous File" log-view-file-prev
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:help "Go to the previous count'th file"]))
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(defvar log-view-mode-hook nil
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"Hook run at the end of `log-view-mode'.")
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(defvar log-view-expanded-log-entry-function nil
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"Function returning the detailed description of a Log View entry.
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It is called by the command `log-view-toggle-entry-display' with
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one arg, the revision tag (a string), and should return a string.
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If it is nil, `log-view-toggle-entry-display' does nothing.")
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(defface log-view-file
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'((((class color) (background light))
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(:background "grey70" :weight bold))
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(t (:weight bold)))
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"Face for the file header line in `log-view-mode'."
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:group 'log-view)
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(define-obsolete-face-alias 'log-view-file-face 'log-view-file "22.1")
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(defvar log-view-file-face 'log-view-file)
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(defface log-view-message
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'((((class color) (background light))
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(:background "grey85"))
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(t (:weight bold)))
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"Face for the message header line in `log-view-mode'."
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:group 'log-view)
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;; backward-compatibility alias
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(define-obsolete-face-alias 'log-view-message-face 'log-view-message "22.1")
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(defvar log-view-message-face 'log-view-message)
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(defvar log-view-file-re
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(concat "^\\(?:Working file: \\(?1:.+\\)" ;RCS and CVS.
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;; Subversion has no such thing??
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"\\|\\(?:SCCS/s\\.\\|Changes to \\)\\(?1:.+\\):" ;SCCS and Darcs.
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"\\)\n") ;Include the \n for font-lock reasons.
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"Regexp matching the text identifying the file.
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The match group number 1 should match the file name itself.")
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(defvar log-view-per-file-logs t
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"Set if to t if the logs are shown one file at a time.")
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(defvar log-view-message-re
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(concat "^\\(?:revision \\(?1:[.0-9]+\\)\\(?:\t.*\\)?" ; RCS and CVS.
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"\\|r\\(?1:[0-9]+\\) | .* | .*" ; Subversion.
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"\\|D \\(?1:[.0-9]+\\) .*" ; SCCS.
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;; Darcs doesn't have revision names. VC-darcs uses patch names
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;; instead. Darcs patch names are hashcodes, which do not appear
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;; in the log output :-(, but darcs accepts any prefix of the log
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;; message as a patch name, so we match the first line of the log
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;; message.
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;; First loosely match the date format.
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(concat "\\|[^ \n].*[^0-9\n][0-9][0-9]:[0-9][0-9][^0-9\n].*[^ \n]"
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;;Email of user and finally Msg, used as revision name.
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" .*@.*\n\\(?: \\* \\(?1:.*\\)\\)?")
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"\\)$")
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"Regexp matching the text identifying a revision.
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The match group number 1 should match the revision number itself.")
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(defvar log-view-font-lock-keywords
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;; We use `eval' so as to use the buffer-local value of log-view-file-re
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;; and log-view-message-re, if applicable.
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'((eval . `(,log-view-file-re
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(1 (if (boundp 'cvs-filename-face) cvs-filename-face))
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(0 log-view-file-face append)))
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(eval . `(,log-view-message-re . log-view-message-face))))
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(defconst log-view-font-lock-defaults
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'(log-view-font-lock-keywords t nil nil nil))
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(defvar log-view-vc-fileset nil
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"The VC fileset corresponding to the current log.")
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(defvar log-view-vc-backend nil
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"The VC backend that created the current log.")
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;;;;
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;;;; Actual code
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;;;;
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;;;###autoload
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(define-derived-mode log-view-mode special-mode "Log-View"
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"Major mode for browsing CVS log output."
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(setq buffer-read-only t)
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(set (make-local-variable 'font-lock-defaults) log-view-font-lock-defaults)
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(set (make-local-variable 'beginning-of-defun-function)
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'log-view-beginning-of-defun)
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(set (make-local-variable 'end-of-defun-function)
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'log-view-end-of-defun)
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(set (make-local-variable 'cvs-minor-wrap-function) 'log-view-minor-wrap)
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(hack-dir-local-variables-non-file-buffer))
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;;;;
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;;;; Navigation
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;;;;
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;; define log-view-{msg,file}-{next,prev}
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(easy-mmode-define-navigation log-view-msg log-view-message-re "log message")
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(easy-mmode-define-navigation log-view-file log-view-file-re "file")
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(defun log-view-goto-rev (rev)
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"Go to revision REV."
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(goto-char (point-min))
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(ignore-errors
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(while (not (equal rev (log-view-current-tag)))
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(log-view-msg-next))
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t))
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;;;;
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;;;; Linkage to PCL-CVS (mostly copied from cvs-status.el)
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;;;;
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(defconst log-view-dir-re "^cvs[.ex]* [a-z]+: Logging \\(.+\\)$")
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(defun log-view-current-file ()
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"Return the current file."
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(save-excursion
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(forward-line 1)
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(or (re-search-backward log-view-file-re nil t)
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(re-search-forward log-view-file-re nil t)
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(error "Unable to determine the current file"))
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(let* ((file (match-string 1))
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(cvsdir (and (re-search-backward log-view-dir-re nil t)
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(match-string 1)))
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(pcldir (and (boundp 'cvs-pcl-cvs-dirchange-re)
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(re-search-backward cvs-pcl-cvs-dirchange-re nil t)
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(match-string 1)))
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(dir ""))
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(let ((default-directory ""))
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(when pcldir (setq dir (expand-file-name pcldir dir)))
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(when cvsdir (setq dir (expand-file-name cvsdir dir))))
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(expand-file-name file dir))))
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(defun log-view-current-entry (&optional pos move)
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"Return the position and revision tag of the Log View entry at POS.
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This is a list (BEG TAG), where BEG is a buffer position and TAG
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is a string. If POS is nil or omitted, it defaults to point.
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If there is no entry at POS, return nil.
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If optional arg MOVE is non-nil, move point to BEG if found.
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Otherwise, don't move point."
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(let ((looping t)
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result)
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(save-excursion
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(when pos (goto-char pos))
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(forward-line 0)
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;; Treat "---" separator lines as part of the following revision.
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(forward-line (if (looking-at "-\\{20,\\}$") 2 1))
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(while looping
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(setq pos (re-search-backward log-view-message-re nil 'move)
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looping (and pos (log-view-inside-comment-p (point)))))
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(when pos
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(setq result
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(list pos (match-string-no-properties 1)))))
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(and move result (goto-char pos))
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result))
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(defun log-view-inside-comment-p (pos)
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"Return non-nil if POS lies inside an expanded log entry."
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(eq (get-text-property pos 'log-view-comment) t))
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(defun log-view-current-tag (&optional pos)
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"Return the revision tag (a string) of the Log View entry at POS.
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if POS is omitted or nil, it defaults to point."
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(cadr (log-view-current-entry pos)))
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(defun log-view-toggle-mark-entry ()
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"Toggle the marked state for the log entry at point.
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Individual log entries can be marked and unmarked. The marked
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entries are denoted by changing their background color.
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`log-view-get-marked' returns the list of tags for the marked
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log entries."
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(interactive)
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(save-excursion
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(let* ((entry (log-view-current-entry nil t))
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(beg (car entry))
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found)
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(when entry
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;; Look to see if the current entry is marked.
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(setq found (get-char-property beg 'log-view-self))
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(if found
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(delete-overlay found)
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;; Create an overlay covering this entry and change its color.
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(let* ((end (if (get-text-property beg 'log-view-entry-expanded)
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(next-single-property-change beg 'log-view-comment)
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(log-view-end-of-defun)
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(point)))
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(ov (make-overlay beg end)))
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(overlay-put ov 'face 'log-view-file)
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;; This is used to check if the overlay is present.
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(overlay-put ov 'log-view-self ov)
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(overlay-put ov 'log-view-marked (nth 1 entry))))))))
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(defun log-view-get-marked ()
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"Return the list of tags for the marked log entries."
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(save-excursion
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(let ((pos (point-min))
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marked-list ov)
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(while (setq pos (next-single-property-change pos 'face))
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(when (setq ov (get-char-property pos 'log-view-self))
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(push (overlay-get ov 'log-view-marked) marked-list)
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(setq pos (overlay-end ov))))
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marked-list)))
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(defun log-view-toggle-entry-display ()
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"If possible, expand the current Log View entry.
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This calls `log-view-expanded-log-entry-function' to do the work."
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(interactive)
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;; Don't do anything unless `log-view-expanded-log-entry-function'
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;; is defined in this mode.
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(when (functionp log-view-expanded-log-entry-function)
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(let* ((opoint (point))
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(entry (log-view-current-entry nil t))
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(beg (car entry))
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(buffer-read-only nil))
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(when entry
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(if (get-text-property beg 'log-view-entry-expanded)
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;; If the entry is expanded, collapse it.
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(let ((pos (next-single-property-change beg 'log-view-comment)))
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(unless (and pos (log-view-inside-comment-p pos))
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(error "Broken markup in `log-view-toggle-entry-display'"))
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(delete-region pos
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(next-single-property-change pos 'log-view-comment))
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(put-text-property beg (1+ beg) 'log-view-entry-expanded nil)
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(if (< opoint pos)
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(goto-char opoint)))
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;; Otherwise, expand the entry.
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(let ((long-entry (funcall log-view-expanded-log-entry-function
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(nth 1 entry))))
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(when long-entry
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(put-text-property beg (1+ beg) 'log-view-entry-expanded t)
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(log-view-end-of-defun)
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(setq beg (point))
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(insert long-entry "\n")
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(add-text-properties
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beg (point)
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'(font-lock-face font-lock-comment-face log-view-comment t))
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(goto-char opoint))))))))
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(defun log-view-beginning-of-defun (&optional arg)
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"Move backward to the beginning of a Log View entry.
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With ARG, do it that many times. Negative ARG means move forward
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to the beginning of the ARGth following entry.
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This is Log View mode's default `beginning-of-defun-function'.
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It assumes that a log entry starts with a line matching
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`log-view-message-re'."
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(if (or (null arg) (zerop arg))
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(setq arg 1))
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(if (< arg 0)
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(dotimes (_n (- arg))
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(log-view-end-of-defun))
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(catch 'beginning-of-buffer
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(dotimes (_n arg)
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(or (log-view-current-entry nil t)
|
|
(throw 'beginning-of-buffer nil)))
|
|
(point))))
|
|
|
|
(defun log-view-end-of-defun ()
|
|
"Move forward to the next Log View entry."
|
|
(let ((looping t))
|
|
(if (looking-at log-view-message-re)
|
|
(goto-char (match-end 0)))
|
|
(while looping
|
|
(cond
|
|
((re-search-forward log-view-message-re nil 'move)
|
|
(unless (log-view-inside-comment-p (point))
|
|
(setq looping nil)
|
|
(goto-char (match-beginning 0))))
|
|
;; Don't advance past the end buttons inserted by
|
|
;; `vc-print-log-setup-buttons'.
|
|
((looking-back "Show 2X entries Show unlimited entries")
|
|
(setq looping nil)
|
|
(forward-line -1))))))
|
|
|
|
(defvar cvs-minor-current-files)
|
|
(defvar cvs-branch-prefix)
|
|
(defvar cvs-secondary-branch-prefix)
|
|
|
|
(defun log-view-minor-wrap (buf f)
|
|
(let ((data (with-current-buffer buf
|
|
(let* ((beg (point))
|
|
(end (if (use-region-p) (mark) (point)))
|
|
(fr (log-view-current-tag beg))
|
|
(to (log-view-current-tag end)))
|
|
(when (string-equal fr to)
|
|
(save-excursion
|
|
(goto-char end)
|
|
(log-view-msg-next)
|
|
(setq to (log-view-current-tag))))
|
|
(cons
|
|
;; The first revision has to be the one at point, for
|
|
;; operations that only take one revision
|
|
;; (e.g. cvs-mode-edit).
|
|
(cons (log-view-current-file) fr)
|
|
(cons (log-view-current-file) to))))))
|
|
(let ((cvs-branch-prefix (cdar data))
|
|
(cvs-secondary-branch-prefix (and (cdar data) (cddr data)))
|
|
(cvs-minor-current-files
|
|
(cons (caar data)
|
|
(when (and (cadr data) (not (equal (caar data) (cadr data))))
|
|
(list (cadr data)))))
|
|
;; FIXME: I need to force because the fileinfos are UNKNOWN
|
|
(cvs-force-command "/F"))
|
|
(funcall f))))
|
|
|
|
(defun log-view-find-revision (pos)
|
|
"Visit the version at POS.
|
|
If called interactively, visit the version at point."
|
|
(interactive "d")
|
|
(unless log-view-per-file-logs
|
|
(when (> (length log-view-vc-fileset) 1)
|
|
(error "Multiple files shown in this buffer, cannot use this command here")))
|
|
(save-excursion
|
|
(goto-char pos)
|
|
(switch-to-buffer (vc-find-revision (if log-view-per-file-logs
|
|
(log-view-current-file)
|
|
(car log-view-vc-fileset))
|
|
(log-view-current-tag)))))
|
|
|
|
|
|
(defun log-view-extract-comment ()
|
|
"Parse comment from around the current point in the log."
|
|
(save-excursion
|
|
(let (st en (backend (vc-backend (log-view-current-file))))
|
|
(log-view-end-of-defun)
|
|
(cond ((eq backend 'SVN)
|
|
(forward-line -1)))
|
|
(setq en (point))
|
|
(log-view-beginning-of-defun)
|
|
(cond ((memq backend '(SCCS RCS CVS MCVS SVN))
|
|
(forward-line 2))
|
|
((eq backend 'Hg)
|
|
(forward-line 4)
|
|
(re-search-forward "summary: *" nil t)))
|
|
(setq st (point))
|
|
(buffer-substring st en))))
|
|
|
|
(declare-function vc-modify-change-comment "vc" (files rev oldcomment))
|
|
|
|
(defun log-view-modify-change-comment ()
|
|
"Edit the change comment displayed at point."
|
|
(interactive)
|
|
(vc-modify-change-comment (list (if log-view-per-file-logs
|
|
(log-view-current-file)
|
|
(car log-view-vc-fileset)))
|
|
(log-view-current-tag)
|
|
(log-view-extract-comment)))
|
|
|
|
(defun log-view-annotate-version (pos)
|
|
"Annotate the version at POS.
|
|
If called interactively, annotate the version at point."
|
|
(interactive "d")
|
|
(unless log-view-per-file-logs
|
|
(when (> (length log-view-vc-fileset) 1)
|
|
(error "Multiple files shown in this buffer, cannot use this command here")))
|
|
(save-excursion
|
|
(goto-char pos)
|
|
(vc-annotate (if log-view-per-file-logs
|
|
(log-view-current-file)
|
|
(car log-view-vc-fileset))
|
|
(log-view-current-tag))))
|
|
|
|
;;
|
|
;; diff
|
|
;;
|
|
|
|
(defun log-view-diff (beg end)
|
|
"Get the diff between two revisions.
|
|
If the region is inactive or the mark is on the revision at
|
|
point, get the diff between the revision at point and its
|
|
previous revision. Otherwise, get the diff between the revisions
|
|
where the region starts and ends.
|
|
|
|
Unlike `log-view-diff-changeset', this function only shows the
|
|
part of the changeset which affected the currently considered
|
|
file(s)."
|
|
(interactive
|
|
(list (if (use-region-p) (region-beginning) (point))
|
|
(if (use-region-p) (region-end) (point))))
|
|
(log-view-diff-common beg end))
|
|
|
|
(defun log-view-diff-changeset (beg end)
|
|
"Get the diff between two revisions.
|
|
If the region is inactive or the mark is on the revision at
|
|
point, get the diff between the revision at point and its
|
|
previous revision. Otherwise, get the diff between the revisions
|
|
where the region starts and ends.
|
|
|
|
Unlike `log-view-diff' this function shows the whole changeset,
|
|
including changes affecting other files than the currently
|
|
considered file(s)."
|
|
(interactive
|
|
(list (if (use-region-p) (region-beginning) (point))
|
|
(if (use-region-p) (region-end) (point))))
|
|
(log-view-diff-common beg end t))
|
|
|
|
(defun log-view-diff-common (beg end &optional whole-changeset)
|
|
(when (and whole-changeset
|
|
(eq (vc-call-backend log-view-vc-backend 'revision-granularity)
|
|
'file))
|
|
(error "The %s backend does not support changeset diffs" log-view-vc-backend))
|
|
(let ((to (log-view-current-tag beg))
|
|
(fr (log-view-current-tag end)))
|
|
(when (string-equal fr to)
|
|
;; TO and FR are the same, look at the previous revision.
|
|
(setq fr (vc-call-backend log-view-vc-backend 'previous-revision nil fr)))
|
|
(vc-diff-internal
|
|
t (list log-view-vc-backend
|
|
;; The value passed here should follow what
|
|
;; `vc-deduce-fileset' returns. If we want to see the
|
|
;; diff for all the files in the changeset, pass NIL for
|
|
;; the file list.
|
|
(unless whole-changeset
|
|
(if log-view-per-file-logs
|
|
(list (log-view-current-file))
|
|
log-view-vc-fileset)))
|
|
fr to)))
|
|
|
|
(provide 'log-view)
|
|
|
|
;;; log-view.el ends here
|