HOW TO COMMIT CHANGES TO EMACS
+Most of these points are from:
+
http://lists.gnu.org/archive/html/emacs-devel/2009-03/msg00555.html
From: Miles Bader
Subject: commit style redux
Date: Tue, 31 Mar 2009 12:21:20 +0900
+(0) Each commit should correspond to a single change (whether spread
+ over multiple files or not). Do not mix different changes in the
+ same commit (eg adding a feature in one file, fixing a bug in
+ another should be two commits, not one).
+
(1) Commit all changed files at once with a single log message (which
in CVS will result in an identical log message for all committed
files), not one-by-one. This is pretty easy using vc-dir now.
(2) Make the log message describe the entire changeset, perhaps
- including relevant changelog entiries (I often don't bother with
+ including relevant changelog entries (I often don't bother with
the latter if it's a trivial sort of change).
Many modern source-control systems vaguely distinguish the first
for modern source-control systems with a global log, it's better to
have something like "Regenerate configure".
+(4) (Added in 2014) In commit comments, and ChangeLog files, it is best
+ to use ways of identifying revisions that are not dependent on a
+ particular version control system. (At time of writing Emacs is
+ about to move to its fourth VCS and another move in the future is
+ not impossible.) An excellent way to identify commits is by
+ quoting their summary line. Another is with an action stamp - an
+ RFC3339 date followed by ! followed by the committer's email - for
+ example, "2014-01-16T05:43:35Z!esr@thyrsus.com". Often, "my
+ previous commit" will suffice.
Followup discussion:
http://lists.gnu.org/archive/html/emacs-devel/2010-01/msg00897.html
+http://lists.gnu.org/archive/html/emacs-devel/2010-02/msg00401.html
PREVIOUS GUIDELINES FOR CVS