GNU bug report logs - #20765
Python .egg files must not be compressed

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Package: guix;

Reported by: ludo <at> gnu.org (Ludovic Courtès)

Date: Sun, 7 Jun 2015 20:38:02 UTC

Severity: serious

Done: Leo Famulari <leo <at> famulari.name>

Bug is archived. No further changes may be made.

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Message #22 received at 20765 <at> debbugs.gnu.org (full text, mbox):

From: Leo Famulari <leo <at> famulari.name>
To: 20765 <at> debbugs.gnu.org
Date: Mon, 8 Feb 2016 23:54:42 -0500

Another reason to not compress Python eggs is that the contents of the
zip archives introduce non-determinism through their timestamps.

You can see it in action:
$ git checkout fe17fb4a2c897fd9186f91887f5af63dd00d227a
$ ./pre-inst-env guix build --rounds=2 acme

If you save the output between rounds, you can use diffoscope to confirm
that the differences between the rounds are the timestamps of the
contents of the eggs.
This bug report was last modified 8 years and 156 days ago.

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