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Re: Caution when removing git branches

From: Magnus Hagander <magnus(at)hagander(dot)net>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Bruce Momjian <bruce(at)momjian(dot)us>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Caution when removing git branches
Date: 2011-01-27 17:23:51
Message-ID: AANLkTimLNnYzvebkm2CfX2FisiqhnAc2BRCh-hgA80V-@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On Thu, Jan 27, 2011 at 18:19, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> On Thu, Jan 27, 2011 at 11:52 AM, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
>> Robert Haas wrote:
>>> On Thu, Jan 27, 2011 at 11:41 AM, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
>>> >> Or for that we could just disable branch creation *completely*, and
>>> >> then turn off that restriction that one time / year that we actually
>>> >> create a branch?
>>> >
>>> > Well, branch creation can always be undone --- branch removal seems like
>>> > the big problem because it can't.
>>>
>>> As I've repeatedly said, branch removal CAN be undone.  I don't see
>>> any evidence that we have an actual problem here that needs worrying
>>> about.
>>
>> OK, someone removes a branch.  If it is still in his local tree, he can
>> push it back.  If not, he has to go around and find someone who does
>> have it, and who has the most recent copy?  Can master be removed too?
>
> So if someone does this (which does not look at all likely to me):
>
> git push origin :REL9_0_STABLE
> git branch -r -D origin/REL9_0_STABLE
> git branch -d REL9_0_STABLE
>
> ...then, yes, they will need to find someone who has run 'git pull'
> since the last change that was made to that branch.  OR they could get
> it back from the anonymous mirror of the canonical repository, which
> should always be up to date, OR I think there's an automatically
> updated mirror on github also.

There is.

Shouldn't we also be able to construct it from the latest mail to
pgsql-committers, since it has the sha1 hash in it..

-- 
 Magnus Hagander
 Me: http://www.hagander.net/
 Work: http://www.redpill-linpro.com/

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