From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andy Wingo <wingo@igalia.com>
Subject: Re: [PATCH] guix hash: -g hashes a git repository
Date: Tue, 04 Apr 2017 15:57:20 +0200
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References: <20170403195837.4504-1-wingo@igalia.com> <87o9wcs6qs.fsf@gnu.org>
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In-Reply-To: <87o9wcs6qs.fsf@gnu.org> ("Ludovic =?utf-8?Q?Court=C3=A8s=22'?=
	=?utf-8?Q?s?= message of "Tue, 04 Apr 2017 14:21:47 +0200")
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To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Cc: guix-devel@gnu.org

On Tue 04 Apr 2017 14:21, ludo@gnu.org (Ludovic Court=C3=A8s) writes:

>> +For example:
>> +@example
>> +$ git clone http://example.org/foo.git
>> +$ guix hash -g foo
>> +@end example
>
> In this case -g is equivalent to -rx.

My main use case is when I am in a git checkout that has build products
or other stuff.  Then I can "guix hash -g .".  Easier than making a temp
dir, clone, hash, then delete.

>> +Or even:
>> +@example
>> +$ guix hash -g http://example.org/foo.git
>> +@end example
>>  @end table
>
> This one is indeed simpler.  However, one typically needs to get the
> commit id in addition to the hash, so it seems that in practice, most of
> the time, we=E2=80=99d still need to do:
>
>   git clone http://=E2=80=A6
>   cd foo
>   git log | head -1
>   guix hash -rx .
>
> so we have both the commit id and the content hash.
>
> WDYT?

Could be!  Or "git rev-parse HEAD".  I'll do that.

Andy