From: Ben Woodcroft <b.woodcroft@uq.edu.au>
To: Jookia <166291@gmail.com>, "Ludovic Courtès" <ludo@gnu.org>
Cc: guix-devel@gnu.org
Subject: Re: Debugging Guix packages?
Date: Thu, 21 Jan 2016 11:59:00 +1000 [thread overview]
Message-ID: <56A03B64.1000609@uq.edu.au> (raw)
In-Reply-To: <20160121002134.GA14628@novena-choice-citizen.lan>
Hi there,
On 21/01/16 10:21, Jookia wrote:
> On Wed, Jan 20, 2016 at 11:26:14PM +0100, Ludovic Courtès wrote:
>> OTOH, for things like GCC, once you start fiddling with the build tree,
>> you quickly lose track of what state you’re in.
>>
>> My workflow has been:
>>
>> guix build foo -K
>> # build fails
>> cd /tmp/guix-build*
>> source environment-variables
>> # Fiddle with the build tree to get additional info about the problem
>> # and a possible fix.
>> # Write a phase that hopefully fixes the issue.
>> # Try again.
>>
>> Since the ‘environment-variables’ file always contains the value of
>> environment variables at the time where the build failed (rather than
>> their initial value), it usually works quite well.
> This could be good enough for now but again this doesn't work with this like
> builds that don't fail. My concrete example is wanting to patch software but not
> knowing how to get to the pre-patch state so I can then work from that in
> testing which patches apply and which don't, or make my own.
Can I ask, why Ricardo's suggestion does not address this concern? This
approach makes builds fail, so then you can inspect. I often use this.
My 2c here, would it be possible to echo any system* commands used in
the build to the log? This would help make things concrete and put flags
in the build log sand.
Thanks,
ben
next prev parent reply other threads:[~2016-01-21 1:59 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-19 2:42 Debugging Guix packages? Jookia
2016-01-19 14:52 ` Ricardo Wurmus
2016-01-19 15:56 ` Christopher Allan Webber
2016-01-20 22:26 ` Ludovic Courtès
2016-01-21 0:21 ` Jookia
2016-01-21 1:27 ` Leo Famulari
2016-01-21 1:59 ` Ben Woodcroft [this message]
2016-01-21 20:55 ` Ludovic Courtès
2016-01-22 4:13 ` Pjotr Prins
2016-01-22 4:53 ` Jookia
2016-01-22 17:05 ` Ludovic Courtès
2016-01-21 20:58 ` Ludovic Courtès
2016-01-21 22:10 ` Jookia
2016-01-21 22:28 ` Christopher Allan Webber
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