git.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Jonathan Nieder <jrnieder@gmail.com>
To: Martin Langhoff <martin.langhoff@gmail.com>
Cc: Johannes Sixt <j6t@kdbg.org>, Git Mailing List <git@vger.kernel.org>
Subject: Re: Pitfalls in auto-fast-forwarding heads that are not checked out?
Date: Sat, 4 May 2013 11:51:46 -0700	[thread overview]
Message-ID: <20130504185146.GD25863@elie.Belkin> (raw)
In-Reply-To: <CACPiFCK=8KFX++Bg+LhymorSMnWgrj5Js+-f=UYyZnNY=n9WiA@mail.gmail.com>

Martin Langhoff wrote:
> On Sat, May 4, 2013 at 3:34 AM, Johannes Sixt <j6t@kdbg.org> wrote:

>> Since git 1.8.0 you can express this check as
>>
>>     if git merge-base --is-ancestor $production_sha1 refs/heads/master
>
> Ah, that's great! Unfortunate it's not there in earlier / more widely
> used releases of git.

Another trick is to use "git push":

	git push . $production_sha1:refs/heads/master

This advances the "master" branch if

 (1) it is not the current branch, and
 (2) that update is a fast-forward

It can be convenient sometimes.

Hope that helps,
Jonathan

  parent reply	other threads:[~2013-05-04 18:51 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-03 22:46 Pitfalls in auto-fast-forwarding heads that are not checked out? Martin Langhoff
2013-05-04  7:34 ` Johannes Sixt
2013-05-04 11:35   ` Martin Langhoff
2013-05-04 13:17     ` John Szakmeister
2013-05-04 18:51     ` Jonathan Nieder [this message]
2013-05-07 14:27       ` Martin Langhoff

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=20130504185146.GD25863@elie.Belkin \
    --to=jrnieder@gmail.com \
    --cc=git@vger.kernel.org \
    --cc=j6t@kdbg.org \
    --cc=martin.langhoff@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).