#73295 TeX font maps are not reproducible

Message #5 received at submit@debbugs.gnu.org (full text, mbox, reply):

From: Konrad Hinsen <konrad.hinsen@fastmail.net>

To: bug-guix@gnu.org

Subject: TeX font maps are not reproducible

Date: Mon, 16 Sep 2024 15:59:22 +0200

Hi everyone,

The font maps generated during profile creation (procedure
texlive-font-maps in guix/profiles.scm) are not reproducible: the order
in which the files are listed in the ls-R file is not deterministic.

As a consequence, files generated from profiles, such as Docker or
Singularity containers, are not reproducible.

I suspect that the culprit is the mktexlsr utility which generates the
non-deterministic ls-R files. It's worth exploring if it can be patched.

Cheers,
  Konrad.

Message #8 received at 73295@debbugs.gnu.org (full text, mbox, reply):

From: Nicolas Goaziou <mail@nicolasgoaziou.fr>

To: Konrad Hinsen <konrad.hinsen@fastmail.net>

Cc: 73295@debbugs.gnu.org

Subject: Re: bug#73295: TeX font maps are not reproducible

Date: Mon, 16 Sep 2024 20:02:32 +0200

Hello,

Konrad Hinsen <konrad.hinsen@fastmail.net> writes:

> The font maps generated during profile creation (procedure
> texlive-font-maps in guix/profiles.scm) are not reproducible: the order
> in which the files are listed in the ls-R file is not deterministic.

Unfortunately, I think there are other parts not reproducible in TeX
Live (e.g., formats).

> I suspect that the culprit is the mktexlsr utility which generates the
> non-deterministic ls-R files. It's worth exploring if it can be patched.

There is a sort option in the "mktexlsr" executable. It doesn't seem to
be accessible from the command line, tho. My Perl-fu is too weak to know
how to proceed from there.

Regards,
-- 
Nicolas Goaziou

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