Bug#990999: biber: reproducible builds: timezone-specific timestamps in PDF

[Vagrant Cascadian]

Source: biber
Severity: normal
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps timezone
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

A timezone-specific timestamp is embedded in biber.pdf:

  https://tests.reproducible-builds.org/debian/rb-pkg/bullseye/amd64/diffoscope-results/biber.html

  CreationDate:·"D:20210109045745-12'00'"
  vs.
  CreationDate:·"D:20210110065745+14'00'"


The attached patches fix this by calling lualatex with the --utc
argument in debian/rules and by patching biber.tex to not include a
document ID.

With these patches applied, biber should become reproducible on the
tests.reproducible-builds.org infrastructure.


Thanks for maintaining biber!


live well,
  vagrant
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