From: "Stephen J. Turnbull" <stephen@xemacs.org>
To: Karl Fogel <kfogel@red-bean.com>
Cc: ofv@wanadoo.es, Eli Zaretskii <eliz@gnu.org>,
Andreas Schwab <schwab@linux-m68k.org>,
emacs-devel@gnu.org
Subject: Re: Workflow to accumulate individual changes?
Date: Sat, 02 Jan 2010 13:37:13 +0900 [thread overview]
Message-ID: <87ws01m8au.fsf@uwakimon.sk.tsukuba.ac.jp> (raw)
In-Reply-To: <878wchfxcn.fsf@red-bean.com>
Karl Fogel writes:
> There are other ways the system could work. IIUC, in git the commit
> message is *not* part of the change's identity,
No, in git the commit message is indeed part of the changes's
identity. A commit is a strictly defined structure (that happens to
be UTF-8 text with a final, free-form "comment" field), and the whole
thing is hashed to get the SHA1 identifying the commit.
What git has (and Mercurial, though implemented very differently) is
tag *objects*. The tag object can contain arbitrary content (eg, a
signature), but here it could be used in some conventional way (eg, by
naming it "<sha1>-log-<log-rev-no>" to record an edited message for
commit <sha1>.
> But I don't know if git has a way of propagating those edits to
> other clones;
git commit --amend creates a new commit, propagated in the usual way
for commits. git tag -a creates an annotated tag, propagated in the
usual way for tags.
> In any case, IMHO it is a minor feature regression that we can no longer
> tweak log messages after the fact, but it's not a huge problem.
The problem is that in a DVCS there is no reasonable way to propagate
those changes, and it becomes an issue of what the "official" message
for that commit is. Eg, suppose you tweak. Now different "official"
messages are going to propagate -- some people already have that
commit, and will *not* refetch it because the identity (SHA1) hasn't
changed. Others will update or clone, and get it.
In other words, in git the way to notify other clients that you've
changed the commit message is to change the commit ID. This is true
of all of the DVCSes I've used.
next prev parent reply other threads:[~2010-01-02 4:37 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-30 21:34 Workflow to accumulate individual changes? Juanma Barranquero
2009-12-30 21:37 ` Juanma Barranquero
2009-12-30 21:46 ` Óscar Fuentes
2009-12-30 23:57 ` Juanma Barranquero
2009-12-31 0:21 ` Óscar Fuentes
2009-12-31 0:27 ` Juanma Barranquero
2009-12-31 1:04 ` Óscar Fuentes
2009-12-31 1:33 ` Juanma Barranquero
2009-12-31 1:48 ` Óscar Fuentes
2009-12-31 2:22 ` Juanma Barranquero
2009-12-31 4:21 ` Eli Zaretskii
2009-12-31 4:36 ` Juanma Barranquero
2009-12-31 5:12 ` Miles Bader
2009-12-31 10:15 ` Eli Zaretskii
2009-12-31 10:44 ` Eli Zaretskii
2009-12-31 12:37 ` Juanma Barranquero
2009-12-31 19:44 ` Karl Fogel
2009-12-31 20:16 ` Eli Zaretskii
2009-12-31 20:41 ` Juanma Barranquero
2010-01-01 2:54 ` Richard Stallman
2010-01-01 12:35 ` Stephen J. Turnbull
2010-01-01 13:49 ` Stephen J. Turnbull
2009-12-31 5:06 ` Óscar Fuentes
2009-12-31 10:26 ` Eli Zaretskii
2009-12-31 12:28 ` Juanma Barranquero
2009-12-31 18:27 ` Eli Zaretskii
2009-12-31 18:59 ` Óscar Fuentes
2009-12-31 20:39 ` Juanma Barranquero
2010-01-01 13:53 ` Stephen J. Turnbull
2010-01-01 14:38 ` Eli Zaretskii
2009-12-30 22:54 ` Giorgos Keramidas
2009-12-31 0:11 ` Juanma Barranquero
2009-12-31 9:21 ` Andreas Schwab
2009-12-31 10:11 ` Eli Zaretskii
2009-12-31 11:44 ` Andreas Schwab
2009-12-31 12:23 ` Eli Zaretskii
2009-12-31 12:38 ` Juanma Barranquero
2009-12-31 13:25 ` Eli Zaretskii
2009-12-31 13:37 ` Juanma Barranquero
2009-12-31 14:13 ` Eli Zaretskii
2009-12-31 13:43 ` Giorgos Keramidas
2009-12-31 13:53 ` Juanma Barranquero
2009-12-31 14:07 ` Alfred M. Szmidt
2009-12-31 14:16 ` Juanma Barranquero
2010-01-01 15:38 ` Alfred M. Szmidt
2010-01-01 17:53 ` David Kastrup
2010-01-01 2:55 ` Richard Stallman
2010-01-01 4:03 ` Óscar Fuentes
2010-01-01 8:41 ` Eli Zaretskii
2010-01-01 10:04 ` Óscar Fuentes
2010-01-02 15:44 ` Richard Stallman
2010-01-01 12:19 ` Andreas Schwab
2010-01-01 14:33 ` Eli Zaretskii
2010-01-01 14:48 ` Andreas Schwab
2010-01-01 19:18 ` Karl Fogel
2010-01-01 19:56 ` Eli Zaretskii
2010-01-01 20:09 ` Chong Yidong
2010-01-01 21:34 ` Eli Zaretskii
2010-01-01 20:13 ` Karl Fogel
2010-01-01 21:35 ` Eli Zaretskii
2010-01-01 21:25 ` Óscar Fuentes
2010-01-01 21:34 ` Eli Zaretskii
2010-01-01 22:58 ` Andreas Schwab
2010-01-01 20:07 ` Teemu Likonen
2010-01-01 20:12 ` Karl Fogel
2010-01-01 21:08 ` Teemu Likonen
2010-01-02 5:00 ` Stephen J. Turnbull
2010-01-02 5:12 ` Karl Fogel
2010-01-02 5:24 ` Miles Bader
2010-01-02 11:43 ` Juanma Barranquero
2010-01-02 12:09 ` Miles Bader
2010-01-02 19:22 ` Karl Fogel
2010-01-05 8:50 ` Stephen J. Turnbull
2010-01-02 4:37 ` Stephen J. Turnbull [this message]
2010-01-01 14:59 ` Stephen J. Turnbull
2010-01-01 15:30 ` Eli Zaretskii
2010-01-01 15:38 ` Alfred M. Szmidt
2009-12-31 14:08 ` David Kastrup
2009-12-31 19:47 ` Karl Fogel
2009-12-31 20:14 ` Chong Yidong
2009-12-31 20:36 ` Óscar Fuentes
2009-12-31 20:44 ` Juanma Barranquero
2009-12-31 14:12 ` Eli Zaretskii
2009-12-31 19:08 ` Stefan Monnier
2009-12-31 12:20 ` Juanma Barranquero
2010-01-01 12:33 ` Stephen J. Turnbull
2010-01-02 1:56 ` Juanma Barranquero
2010-01-02 2:28 ` Óscar Fuentes
2010-01-02 2:50 ` Juanma Barranquero
2010-01-02 9:11 ` Eli Zaretskii
2010-01-02 13:20 ` Juanma Barranquero
2010-01-02 13:17 ` Juanma Barranquero
2010-01-02 3:46 ` Stephen J. Turnbull
2010-01-02 9:10 ` Eli Zaretskii
2010-01-02 15:30 ` Stephen J. Turnbull
2010-01-02 17:05 ` Eli Zaretskii
2010-01-02 13:39 ` Juanma Barranquero
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