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From: zimoun <zimon.toutoune@gmail.com>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: guix-devel <guix-devel@gnu.org>
Subject: Unreproducible “guix pack -f docker” because config.scm-builder
Date: Mon, 01 Feb 2021 23:37:21 +0100	[thread overview]
Message-ID: <86pn1jct3y.fsf@gmail.com> (raw)
In-Reply-To: <8735ylm4zx.fsf@gnu.org>

Hi Ludo,

On Thu, 28 Jan 2021 at 16:54, Ludovic Courtès <ludo@gnu.org> wrote:

>> $ guix time-machine -C /tmp/img/channels.scm -- pack -f docker --save-provenance -m /tmp/img/manifest.scm
>> Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
>> /gnu/store/xzk604g8gysv4azn7sf9nylr6iah97gl-docker-pack.tar.gz
>>
>> To compare with
>> /gnu/store/wxymmnxdvdvf08ifsfy39xjaxilhrigk-docker-pack.tar.gz.
>>
>> On a third machine, I get:
>> /gnu/store/wxymmnxdvdvf08ifsfy39xjaxilhrigk-docker-pack.tar.gz
>>
>> Well, that’s another story and I have not inspected yet the
>> derivations and what could be wrong on the machine B.
>
> You’d have to check the differences.  It may be that provenance data
> differs, for example because the second attempt includes data about
> channels that are actually unused.  (That’s the whole problem of
> provenance data: it’s not a one-to-one mapping and it’s not a bijection
> either.)

After inspecting the derivations, the issue is from the file
’config.scm-builder’ which differs by:

    (define-public %sysconfdir "/usr/local/etc")

vs

    (define-public %sysconfdir "/etc")


What did I do wrong?  From where does this difference come?  How can I
fix it?



Below, the different commands to spot out the issue.

Cheers,
simon


Machine A

--8<---------------cut here---------------start------------->8---
$ guix describe
Generation 101  Jan 29 2021 16:22:06    (current)
  guix b9a54aa
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: b9a54aad0ba282ac78931b67e679bd0132419364
$ guix describe -f channels > /tmp/channels.scm
$ guix pack -f docker hello
/gnu/store/9vhl75vx60l56992hgy5818ndic608p5-docker-pack.tar.gz

$ guix time-machine -C /tmp/channels.scm -- pack -f docker hello
/gnu/store/9vhl75vx60l56992hgy5818ndic608p5-docker-pack.tar.gz
$ guix gc --derivers /gnu/store/9vhl75vx60l56992hgy5818ndic608p5-docker-pack.tar.gz                                        
/gnu/store/ih94c9ny68dfalrym9m1vz4wa40rpgvs-docker-pack.tar.gz.drv                                                                      
--8<---------------cut here---------------end--------------->8---

07fwgiz56f7dk760qpplnfaxribglqc7-config.scm-builder:

    (define-public %sysconfdir "/usr/local/etc")
    

Machine B (and C)

--8<---------------cut here---------------start------------->8---
$ guix describe
Génération 7    28 janv. 2021 01:51:17  (actuelle)
   guix 0f20b3f
     URL du dépôt : https://git.savannah.gnu.org/git/guix.git
     branche: master
     commit : 0f20b3fa2050ba6e442e340a204516b9375cd231
$ cat /tmp/channels.scm
(list (channel
        (name 'guix)
        (url "https://git.savannah.gnu.org/git/guix.git")
        (commit
          "b9a54aad0ba282ac78931b67e679bd0132419364")
        (introduction
          (make-channel-introduction
            "9edb3f66fd807b096b48283debdcddccfea34bad"
            (openpgp-fingerprint
              "BBB0 2DDF 2CEA F6A8 0D1D  E643 A2A0 6DF2 A33A 54FA")))))
$ guix time-machine -C /tmp/channels.scm -- pack -f docker hello
Mise à jour du canal « guix » depuis le dépôt Git «https://git.savannah.gnu.org/git/guix.git »...
/gnu/store/nkvlqwzvxdlhzlc7vhfcngxc19x2ay2f-docker-pack.tar.gz

$ guix pull --commit=b9a54aad0ba282ac78931b67e679bd0132419364
$ guix describe
Génération 8    01 févr. 2021 17:00:18  (actuelle)
   guix b9a54aa
     URL du dépôt : https://git.savannah.gnu.org/git/guix.git
     commit : b9a54aad0ba282ac78931b67e679bd0132419364
$ guix pack -f docker hello
/gnu/store/nkvlqwzvxdlhzlc7vhfcngxc19x2ay2f-docker-pack.tar.gz
$ guix gc --derivers /gnu/store/nkvlqwzvxdlhzlc7vhfcngxc19x2ay2f-docker-pack.tar.gz           
/gnu/store/323k33sfx869d0nkh69ary8sj6xiy4s4-docker-pack.tar.gz.drv
--8<---------------cut here---------------end--------------->8---

00cy802583sb82kcpzfd1sz1xwff9hln-config.scm-builder:

    (define-public %sysconfdir "/etc")           


  reply	other threads:[~2021-02-01 22:42 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210116182957.31075-1-ludo@gnu.org>
2021-01-27 13:14 ` bug#45919: [PATCH 0/8] Exporting a manifest and channels from a profile Ludovic Courtès
2021-01-27 21:02   ` [bug#45919] " zimoun
2021-01-28 15:54     ` Ludovic Courtès
2021-02-01 22:37       ` zimoun [this message]
2021-02-02 14:48         ` Unreproducible “guix pack -f docker” because config.scm-builder zimoun
2021-02-02 18:12         ` Ludovic Courtès
2021-02-02 20:11           ` zimoun
2021-02-05 10:09             ` Ludovic Courtès
2021-02-05 17:22               ` zimoun
2021-02-06 21:46                 ` Ludovic Courtès
2021-02-08 18:44                   ` [PATCH] Fix unreproducible “guix pack -f docker” (hard link) zimoun
     [not found]                   ` <86lfbzad42.fsf@gmail.com>
2021-02-09  8:35                     ` Unreproducible “guix pack -f docker” because config.scm-builder Ludovic Courtès
2021-02-09  8:51                       ` zimoun
2021-01-28 17:57     ` [bug#45919] [PATCH 0/8] Exporting a manifest and channels from a profile Bengt Richter
2021-01-29 19:13       ` zimoun
2021-01-28 17:04   ` bug#45919: " Pierre Neidhardt
2021-01-29 17:57     ` [bug#45919] " Pierre Neidhardt
2021-01-29 18:57       ` zimoun
2021-01-29 21:51         ` Pierre Neidhardt
2021-01-30 14:31           ` zimoun
2021-01-30 21:23             ` bug#45919: " Ludovic Courtès
2021-01-31  5:08               ` Ryan Prior
2021-02-01 13:30                 ` Ludovic Courtès
2021-01-30 13:55       ` Ludovic Courtès
2021-01-31 17:26         ` Pierre Neidhardt
2021-02-01 13:25           ` Ludovic Courtès
2021-02-01 15:32             ` Pierre Neidhardt
2021-02-01 17:04               ` Ludovic Courtès

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