GNU bug report logs - #61841
‘guix shell’ computes different package derivation than ‘guix build’

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From: Ludovic Courtès <ludo <at> gnu.org>
To: 61841 <at> debbugs.gnu.org
Subject: bug#61841: ‘guix shell’ computes different package derivation than ‘guix build’
Date: Mon, 27 Feb 2023 14:36:56 +0100

Look at this weird phenomenon.

First, with ‘guix build’, everything works as expected:

--8<---------------cut here---------------start------------->8---
$ guix describe
Generation 247  Feb 27 2023 08:47:41    (current)
  guix 17bd024
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: 17bd0243310754045cdc6cc362c804db4a8f9317
$ guix build ungoo
ungoogled-chromium          ungoogled-chromium-wayland  
$ guix build ungoogled-chromium -n
The following grafts would be made:
   /gnu/store/sb9bva92ycw40jiwvklvdwpr5pqs5y14-ungoogled-chromium-109.0.5414.119-1.drv
   /gnu/store/88bvz2ch3wsiz66qcmhhpbz2i60ms14j-harfbuzz-5.3.1.drv
   /gnu/store/pvrhcbpajl9cf2jjy8p01p5fh6kjf3fi-pipewire-0.3.63.drv
   /gnu/store/mjm6k8l2d0j1j3j3p7rqrrrj2pla4cwa-jack2-1.9.21.drv
$ guix build ungoogled-chromium -n --no-grafts
/gnu/store/p984s3dna89qw3j1s9w1jpz3wjw1jmfg-ungoogled-chromium-109.0.5414.119-1
$ guix build ungoogled-chromium -n --no-grafts -d
/gnu/store/i8f4qri399l1r2k7hrwpdxxgc3q77izw-ungoogled-chromium-109.0.5414.119-1.drv
--8<---------------cut here---------------end--------------->8---

But now ‘guix shell’ (same revision) wants to build ungoogled-chromium:

--8<---------------cut here---------------start------------->8---
$ guix shell ungoogled-chromium -n
The following derivations would be built:
  /gnu/store/6kgc8cd8wn010ba3jnywj2qsjsjk511s-ungoogled-chromium-109.0.5414.119-1.drv
  /gnu/store/xfiqj5qnnld9g8hdh879aa7gp7wprhaf-chromium-109.0.5414.119.tar.xz.drv
  /gnu/store/4ic70ax830gng6fbaqk3mf3rf2x6vf1j-jsoncpp.patch.drv
  /gnu/store/9sbl6km93sgb7wc2b14sc1fgf7alsb79-openjpeg.patch.drv
  /gnu/store/jcx82l35b070dz91aiz6gffgkngcf1gl-zlib.patch.drv

1,930.3 MB would be downloaded
$ guix shell ungoogled-chromium -n --no-grafts
The following derivations would be built:
  /gnu/store/mpfvrssy125chnxsy4qg61kk1a2s235d-profile.drv
  /gnu/store/kyncllwl57l2pk63rc154zdfmbx8759v-ungoogled-chromium-109.0.5414.119-1.drv
  /gnu/store/xfiqj5qnnld9g8hdh879aa7gp7wprhaf-chromium-109.0.5414.119.tar.xz.drv
  /gnu/store/4ic70ax830gng6fbaqk3mf3rf2x6vf1j-jsoncpp.patch.drv
  /gnu/store/9sbl6km93sgb7wc2b14sc1fgf7alsb79-openjpeg.patch.drv
  /gnu/store/jcx82l35b070dz91aiz6gffgkngcf1gl-zlib.patch.drv

1,930.3 MB would be downloaded
--8<---------------cut here---------------end--------------->8---

Why does ‘guix shell’ want to build a different derivation for the same
package?

The derivation ‘guix shell’ computed depends on different *.patch.drv,
compared to the “right” one:

--8<---------------cut here---------------start------------->8---
$ guix gc -R $(guix build ungoogled-chromium -d --no-grafts) |grep -E '(jsoncpp|openjpeg|zlib)\.patch\.drv'
/gnu/store/ysmmqzva7j49x7sswr5kdgdj59dsh8ip-zlib.patch.drv
/gnu/store/iamxhd6d0jqvmjfh458qwhm62bq2adb7-jsoncpp.patch.drv
/gnu/store/03hqmvhl97b8pxrcqahc9xk1bil2pbs3-openjpeg.patch.drv
--8<---------------cut here---------------end--------------->8---

To be continued…

Ludo’.

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