OBS substitutes

[zimoun <zimon.toutoune@gmail.com>]

Hi,

I am confused because using Guix fb32a38, I get:

--8<---------------cut here---------------start------------->8---
$ guix weather obs
computing 1 package derivations for x86_64-linux...
looking for 1 store items on https://ci.guix.gnu.org...
https://ci.guix.gnu.org
  0.0% substitutes available (0 out of 1)
  unknown substitute sizes
  0.0 MiB on disk (uncompressed)

  0.0% (0 out of 1) of the missing items are queued
  at least 1,000 queued builds
      powerpc64le-linux: 999 (99.9%)
      i686-linux: 1 (.1%)
  build rate: .00 builds per hour
      powerpc64le-linux: 0.00 builds per hour
      x86_64-linux: 0.00 builds per hour
      i686-linux: 0.00 builds per hour
      aarch64-linux: 0.00 builds per hour
looking for 1 store items on https://bordeaux.guix.gnu.org...
https://bordeaux.guix.gnu.org
  100.0% substitutes available (1 out of 1)
  4.0 MiB of nars (compressed)
  15.2 MiB on disk (uncompressed)
  (continuous integration information unavailable)
--8<---------------cut here---------------end--------------->8---

well, I do not understand why it is not on Berlin.  But why not.  Then,

--8<---------------cut here---------------start------------->8---
$ guix build obs -n
The following derivations would be built:
   /gnu/store/iz6yxr0jz312xz6494zc9wwv3w2lxzs5-obs-27.0.1.drv
   /gnu/store/s4yg1apy5m3l2scqbd2v27bcs07c1b5j-obs-27.0.1.tar.xz.drv
   /gnu/store/i9r2gwiqqr3ggyf63ad3k6ardiv68w1c-obs-27.0.1-checkout.drv
--8<---------------cut here---------------end--------------->8---

Hum, I am confused why Guix wants to build from source when it is
available on Bordeaux.  I have checked my config, but why not if I
miss something.  Explicitly,

--8<---------------cut here---------------start------------->8---
$ guix build obs --substitute-urls="https://bordeaux.guix.gnu.org"
The following derivations will be built:
   /gnu/store/iz6yxr0jz312xz6494zc9wwv3w2lxzs5-obs-27.0.1.drv
   /gnu/store/s4yg1apy5m3l2scqbd2v27bcs07c1b5j-obs-27.0.1.tar.xz.drv
   /gnu/store/i9r2gwiqqr3ggyf63ad3k6ardiv68w1c-obs-27.0.1-checkout.drv
building /gnu/store/i9r2gwiqqr3ggyf63ad3k6ardiv68w1c-obs-27.0.1-checkout.drv...
guile: warning: failed to install locale
environment variable `PATH' set to `/gnu/store/v6f44zccwh9z5zk3pjlywjybbi8n2hjh-tar-1.32/bin:/gnu/store/ncydgq2znms5n1d2k5yqshhf58nsixwv-gzip-1.10/bin:/gnu/store/i8h2pcxqdq07ijm3ibkka8f4smn1w48v-bzip2-1.0.8/bin:/gnu/store/9860f1abqj8wjjnwl8a9v54pdcc3bhgf-xz-5.2.4/bin:/gnu/store/60g7r3l01fd7c58yjbm6krgcwj1jkpwg-file-5.38/bin:/gnu/store/n4n560pfvvw50a9369axw5vj5rrqfj1n-diffutils-3.7/bin:/gnu/store/cd5qf3kcnlq35p9k392pjdpdzpsnds70-patch-2.7.6/bin:/gnu/store/hic7snhayfl7m6cpfqqr73nmm19bpqkg-findutils-4.7.0/bin:/gnu/store/swqdvwri9dbv6zssg6v0by7l05hd6wxp-gawk-5.0.1/bin:/gnu/store/ishk7fswcs4gkwcp8mh788z4mvvl9bxh-sed-4.8/bin:/gnu/store/bhs4rj58v8j1narb2454raan2ps38xd8-grep-3.4/bin:/gnu/store/57xj5gcy1jbl9ai2lnrqnpr0dald9i65-coreutils-8.32/bin:/gnu/store/hm40bxnv8jxmbc1lpb7zfimii4xm9m81-make-4.3/bin:/gnu/store/pwcp239kjf7lnj5i4lkdzcfcxwcfyk72-bash-minimal-5.0.16/bin:/gnu/store/mpa04aq8lblbcviyxywxcsb1zbi0mf39-ld-wrapper-0/bin:/gnu/store/m1z7cdbqsqyp9xnjw5cvlb4a7gkcg3m4-binutils-2.34/bin:/gnu/store/rn75fm7adgx3pw5j8pg3bczfqq1y17lk-gcc-7.5.0/bin:/gnu/store/fa6wj5bxkj5ll1d7292a70knmyl7a0cr-glibc-2.31/bin'
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint: 
hint: 	git config --global init.defaultBranch <name>
hint: 
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint: 
hint: 	git branch -m <name>
Initialized empty Git repository in /gnu/store/86x4q8w68984r6n4j0wl00zw1zq8xy96-obs-27.0.1-checkout/.git/
  C-c C-c
--8<---------------cut here---------------end--------------->8---

Why?  How is it possible that “guix weather” reports that the
substitute is available but then “guix build” does not fetch it?


All the best,
simon