From: Jonathan Nieder <jrnieder@gmail.com>
To: Johan Herland <johan@herland.net>
Cc: git@vger.kernel.org, Junio C Hamano <gitster@pobox.com>,
Sverre Rabbelier <srabbelier@gmail.com>,
bebarino@gmail.com, avarab@gmail.com
Subject: Re: git merge --abort? [was: Re: [PATCHv4 00/21] git notes merge]
Date: Fri, 22 Oct 2010 09:55:53 -0500 [thread overview]
Message-ID: <20101022145553.GA9224@burratino> (raw)
In-Reply-To: <201010221611.15425.johan@herland.net>
Johan Herland wrote:
> Does this mean that there are situations where you simply _cannot_ get
> back to the pre-merge state (using 'git reset --merge' or otherwise)?
Technically yes, there is such an edge case, but I don't think that
was what he was talking about.
> Is this something we should detect and warn about when starting the
> merge? Something like:
>
> $ git merge bar
> I'm sorry, Dave. I'm afraid I can't merge with and unclean index.
> Use -f to force the merge anyway, but then 'git merge --abort' will
> lose your staged changes.
"Use -f to force the merge anyway" does not make sense to me.
git merge does not work with an index that does not match HEAD (except
in the aforementioned edge case where the content in the edge already
matches the merged content). So 'git merge' bails out in this case,
leaving the index as-is; if a person doesn't notice that and tries
'git reset --merge', her staged changes may be clobbered.
> Or could we solve it simply by making a backup of the pre-merge index
> that can later be restored by 'git merge --abort'?
Yes, that's one way. I think it might be better for 'git reset
--merge' to check for MERGE_HEAD and do nothing if it is absent if we
want it to be closer to an inverse to failed 'git merge'.
next prev parent reply other threads:[~2010-10-22 14:59 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-21 2:08 [PATCHv4 00/21] git notes merge Johan Herland
2010-10-21 2:08 ` [PATCHv4 01/21] notes.c: Hexify SHA1 in die() message from init_notes() Johan Herland
2010-10-21 2:08 ` [PATCHv4 02/21] (trivial) notes.h: Minor documentation fixes to copy_notes() Johan Herland
2010-10-21 2:08 ` [PATCHv4 03/21] notes.h: Make default_notes_ref() available in notes API Johan Herland
2010-10-21 2:08 ` [PATCHv4 04/21] notes.c: Reorder functions in preparation for next commit Johan Herland
2010-10-21 2:08 ` [PATCHv4 05/21] notes.h/c: Clarify the handling of notes objects that are == null_sha1 Johan Herland
2010-10-21 5:12 ` Jonathan Nieder
2010-10-21 13:13 ` Johan Herland
2010-10-21 17:54 ` Jonathan Nieder
2010-10-22 13:32 ` Johan Herland
2010-10-21 2:08 ` [PATCHv4 06/21] notes.h/c: Propagate combine_notes_fn return value to add_note() and beyond Johan Herland
2010-10-21 5:21 ` Jonathan Nieder
2010-10-21 13:16 ` Johan Herland
2010-10-21 2:08 ` [PATCHv4 07/21] (trivial) t3303: Indent with tabs instead of spaces for consistency Johan Herland
2010-10-21 2:08 ` [PATCHv4 08/21] notes.c: Use two newlines (instead of one) when concatenating notes Johan Herland
2010-10-21 2:08 ` [PATCHv4 09/21] builtin/notes.c: Split notes ref DWIMmery into a separate function Johan Herland
2010-10-21 2:08 ` [PATCHv4 10/21] git notes merge: Initial implementation handling trivial merges only Johan Herland
2010-10-21 2:08 ` [PATCHv4 11/21] builtin/notes.c: Refactor creation of notes commits Johan Herland
2010-10-21 2:08 ` [PATCHv4 12/21] git notes merge: Handle real, non-conflicting notes merges Johan Herland
2010-10-21 2:08 ` [PATCHv4 13/21] git notes merge: Add automatic conflict resolvers (ours, theirs, union) Johan Herland
2010-10-21 2:08 ` [PATCHv4 14/21] Documentation: Preliminary docs on 'git notes merge' Johan Herland
2010-10-21 2:08 ` [PATCHv4 15/21] git notes merge: Manual conflict resolution, part 1/2 Johan Herland
2010-10-21 2:08 ` [PATCHv4 16/21] git notes merge: Manual conflict resolution, part 2/2 Johan Herland
2010-10-21 2:08 ` [PATCHv4 17/21] git notes merge: List conflicting notes in notes merge commit message Johan Herland
2010-10-21 2:08 ` [PATCHv4 18/21] git notes merge: --commit should fail if underlying notes ref has moved Johan Herland
2010-10-21 2:08 ` [PATCHv4 19/21] git notes merge: Add another auto-resolving strategy: "cat_sort_uniq" Johan Herland
2010-10-21 2:08 ` [PATCHv4 20/21] git notes merge: Add testcases for merging notes trees at different fanouts Johan Herland
2010-10-21 2:08 ` [PATCHv4 21/21] Provide 'git notes get-ref' to easily retrieve current notes ref Johan Herland
2010-10-21 21:00 ` [PATCHv4 00/21] git notes merge Sverre Rabbelier
2010-10-21 23:20 ` Junio C Hamano
2010-10-21 23:30 ` Jonathan Nieder
2010-10-22 14:11 ` git merge --abort? [was: Re: [PATCHv4 00/21] git notes merge] Johan Herland
2010-10-22 14:55 ` Jonathan Nieder [this message]
2010-10-22 15:12 ` Johan Herland
2010-10-22 15:20 ` Sverre Rabbelier
2010-10-22 15:48 ` Jonathan Nieder
2010-10-22 15:57 ` Sverre Rabbelier
2010-10-22 15:41 ` [PATCHv4 00/21] git notes merge Johan Herland
2010-10-22 15:54 ` Sverre Rabbelier
2010-10-23 0:47 ` Johan Herland
2010-10-23 1:44 ` Sverre Rabbelier
2010-10-22 22:28 ` Johan Herland
2010-10-23 1:38 ` Sverre Rabbelier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20101022145553.GA9224@burratino \
--to=jrnieder@gmail.com \
--cc=avarab@gmail.com \
--cc=bebarino@gmail.com \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
--cc=johan@herland.net \
--cc=srabbelier@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).