Leo Famulari <leo@famulari.name> writes:

> I've noticed that certain packages never seem to have substitutes
> available from ci.guix.gnu.org.
>
> This is not about packages that consistently fail to build, like Vigra
> (LibreOffice) [0], but packages that never seem to be attempted at all,
> and are not found when searching on the CI results.
>
> For example, ncmpcpp has not been built since February 2020:
>
> https://ci.guix.gnu.org/search?query=spec%3Aguix-master+system%3Ax86_64-linux+ncmpcpp

For getting data in to the Guix Data Service, I added a way of fetching
the Cuirass build for an ouptut, [1] for example.

1: https://ci.guix.gnu.org/output/a4dfa081zsmfkbcfphcr5glzgxh3n81l-ncmpcpp-0.8.2

The Guix Data Service gathers up the builds, and displays them. This is
a useful page when looking at if a package has been built:

https://data.guix.gnu.org/repository/1/branch/master/package/ncmpcpp/output-history

> And Borg has apparently never been built:
>
> https://ci.guix.gnu.org/search?query=spec%3Aguix-master+system%3Ax86_64-linux+borg

Here's the similar link for borg:

http://data.guix.gnu.org/repository/1/branch/master/package/borg/output-history