Reproducible XFS Filesystems Builds for VMs

Simon Josefsson simon at josefsson.org
Sat Apr 12 16:15:25 UTC 2025


Jelle van der Waa <jelle at vdwaa.nl> writes:

> But funnily enough NO_COLOR sort of is. [2]
> [2] https://no-color.org/

That doesn't seem like a build variables does it?  It seems more similar
to the POSIXLY_CORRECT, GZIP, TAR_OPTIONS etc variables.  Compare with
the (excellent!) specification for SOURCE_DATE_EPOCH that in my reading
makes it clear that it is intended to be used during package builds:

https://reproducible-builds.org/specs/source-date-epoch/
https://reproducible-builds.org/docs/source-date-epoch/

If SOURCE_DATE_EPOCH is to be a runtime exposed environment variable
that end-users are supposed to use to influence behaviour of help2man,
mkfs etc, I think the specification doesn't make sense and would need
some additional discussion.

> But I am not going to fall into the trap of discussion if this is
> wanted or not :)

:)

/Simon
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