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From: ludo@gnu.org (Ludovic Courtès)
To: Ben Woodcroft <b.woodcroft@uq.edu.au>
Cc: "guix-devel@gnu.org" <guix-devel@gnu.org>
Subject: Re: [PATCH] Add 12 rubygems.
Date: Wed, 30 Dec 2015 18:26:26 +0100	[thread overview]
Message-ID: <871ta3rgot.fsf@gnu.org> (raw)
In-Reply-To: <56821F70.4010202@uq.edu.au> (Ben Woodcroft's message of "Tue, 29 Dec 2015 15:51:44 +1000")

Ben Woodcroft <b.woodcroft@uq.edu.au> skribis:

> On 29/12/15 15:46, Ben Woodcroft wrote:
>>
>> Unfortunately none of these builds are reproducible because rubygems
>> in Guix generally aren't. For one, this is because .gem files are
>> archives whose contents are timestamped.
> I should clarify. What I meant was the cache .gem files
>
> /gnu/store/ib83mg5zsyr5x2w0m3i1f84gdvdbp5x9-ruby-ascii85-1.0.2/lib/ruby/gems/2.2.0/cache$
> tar tvf Ascii85-1.0.2.gem |head
> -r--r--r-- wheel/wheel     703 2015-12-27 22:44 metadata.gz
> -r--r--r-- wheel/wheel    7436 2015-12-27 22:44 data.tar.gz
> -r--r--r-- wheel/wheel     268 2015-12-27 22:44 checksums.yaml.gz

We should arrange so that gems are created with a fixed timestamp and
UID/GID, and a well-defined file ordering, as with:

  --mtime=@0 --sort=name --owner=root:0 --group=root:0

We also need to make sure gzip is always run with -n/--no-name.  That
way, the gz files above will not include an additional timestamp.

From what I can see in
<git://git.debian.org/git/reproducible/notes.git>, this is not addressed
yet in other distros.

HTH,
Ludo’.

  reply	other threads:[~2015-12-30 17:26 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-29  5:46 [PATCH] Add 12 rubygems Ben Woodcroft
2015-12-29  5:51 ` Ben Woodcroft
2015-12-30 17:26   ` Ludovic Courtès [this message]
2015-12-29  7:18 ` Ricardo Wurmus
2015-12-30  0:51   ` [PATCH] Help Ruby packages be reproducible (was: [PATCH] Add 12 rubygems.) Ben Woodcroft
2015-12-30  0:56     ` [PATCH] Help Ruby packages be reproducible Ben Woodcroft
2015-12-30  2:47       ` Pjotr Prins
2015-12-30  8:26       ` Ricardo Wurmus
2015-12-30 23:52         ` Ben Woodcroft
2015-12-31 10:03           ` Ricardo Wurmus
2016-01-01 15:10             ` Ludovic Courtès
2016-01-02 15:02               ` Ben Woodcroft
2016-01-06 11:46                 ` Ricardo Wurmus
2016-01-07 13:24                   ` Ludovic Courtès
2016-01-08 14:16                   ` Thompson, David
2016-01-07 14:31                 ` Ludovic Courtès
2016-01-08 11:34                   ` Ben Woodcroft
2016-01-08 16:55                     ` Ludovic Courtès
2015-12-31 12:03           ` Ben Woodcroft
2015-12-30  9:14 ` [PATCH] Add 12 rubygems Ricardo Wurmus
2016-01-07 14:29   ` Ricardo Wurmus
2016-01-26  6:37     ` Ben Woodcroft

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