[arch-dev-public] Reproducible builds progress report #3

Allan McRae allan at archlinux.org

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Hi all,

A quick updated on the progress of reproducible builds.

You may have noticed a couple of large rebuilds that occurred recently.
These fixed issues of non-reproducible file ordering with old versions
of makepkg. This and other hard work by the team improving our tooling
and fixing packaging issues has resulted in 96% of [core] being
reproducible, and 90% of [extra]. You can see the status of which
packages are reproducible here [1].

The remaining packages to fix in [core] are dnssec-anchors, linux,
linux-lts, nss and perl. With the possible exception of perl, these are
in the "hard" basket. There is plans on how to fix the kernel packages,
but that will require some time to sort out. We would be happy for more
people to help out so we can get [core] to 100% reproducible.

We have investigated some of the packages in [extra] that fail to
reproduce here [2]. Note that there are quite a few packages that
currently "Failed to build from source" (FTBFS) - it would be very
helpful for the reproducible builds team if their maintainers can help
fix the packages. You can also use the CI of Arch packages run by Debian
to get an overview what the issue is with these packages and see many
other packages that are currently failing to build [3].

We also need help to investigate and fix the packages that fail to
reproduce that we have not investigated as of yet. There are two easy to
use tools to attempt to reproduce a package - "makerepropkg" from
devtools and "repro" from the archlinux-repro package. Once these have
rebuilt a package, you can use the "diffoscope" tool to look at the
differences. Jump in the #archlinux-reproducible IRC channel if you want
help interpreting the output, or you could just link to a copy of it in
the wiki.

[1] <a href="https://reproducible.archlinux.org/">https://reproducible.archlinux.org/</a>
[2] <a href="https://wiki.archlinux.org/index.php/Reproducible_Builds/Status">https://wiki.archlinux.org/index.php/Reproducible_Builds/Status</a>
[3] <a href="https://tests.reproducible-builds.org/archlinux/extra.html">https://tests.reproducible-builds.org/archlinux/extra.html</a>

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