[Debian-med-packaging] Bug#997000: snakemake: please make the build reproducible

[Chris Lamb]

Source: snakemake
Version: 6.9.1+dfsg1-3
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: randomness
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

Hi,

Whilst working on the Reproducible Builds effort [0] we noticed that
snakemake could not be built reproducibly.

This is because it generates and ships a Graphviz .dot file during the
tests and this file has a non-deterministic ordering. Also, the PDF
file generated from this very .dot file contains a created date in its
headers.

Patch attached that fixes the non-determinism in the .dot file
generation and prevents the Debian packaging from shipping the
non-deterministic PDF version.

 [0] https://reproducible-builds.org/


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
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