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From: Runciter via Guix-patches via <guix-patches@gnu.org>
To: 74411@debbugs.gnu.org
Subject: [bug#74411] patch v2 non-determinism fix
Date: Thu, 21 Nov 2024 01:15:47 +0000	[thread overview]
Message-ID: <87plmptmin.fsf@whispers-vpn.org> (raw)
In-Reply-To: <cover.1731747114.git.runciter@whispers-vpn.org>

Version 2 of the patch is a change to the freedict-tools package which
is a fix for the non-determinism of dictzip headers.

Before compressing .dict files, a shell command involving touch and date
sets the file's mtime to the start of the epoch taken on the Greenwich
meridian.

The build is now repeatable on my machine, and probably on any single
machine. As for reproducibility across machines, well, good chance it'll
be reproducible: the design intent is that the compressed file headers
should be insensitive to the system's configured time zone. This will
need to be assured by challenging a substitutes build from a computer
which is configured on a timezone different from its substitute server.

Runciter





      parent reply	other threads:[~2024-11-21  1:16 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-17 18:06 [bug#74411] [PATCH 0/4] Add DICT and FreeDict projects packages Runciter via Guix-patches via
2024-11-18  5:55 ` [bug#74411] [PATCH 1/4] gnu: Add (gnu packages dictd) Runciter via Guix-patches via
2024-11-18  5:56 ` [bug#74411] [PATCH 2/4] gnu: Add dictd-1.13.1 Runciter via Guix-patches via
2024-11-18  5:56 ` [bug#74411] [PATCH 3/4] gnu: Add freedict-tools-0.6.0 Runciter via Guix-patches via
2024-11-18  5:56 ` [bug#74411] [PATCH 4/4] gnu: Add freedict-dictionaries Runciter via Guix-patches via
2024-11-18  6:37 ` [bug#74411] freedict-dictionaries build non-deterministic Runciter via Guix-patches via
2024-11-19  8:43   ` Nicolas Graves via Guix-patches via
2024-11-19 15:13 ` Runciter via Guix-patches via
2024-11-21  0:49 ` [bug#74411] [PATCH v2 1/5] gnu: Add (gnu packages dictd) Runciter via Guix-patches via
2024-11-21  0:49   ` [bug#74411] [PATCH v2 2/5] gnu: Add dictd-1.13.1 Runciter via Guix-patches via
2024-11-21  0:50   ` [bug#74411] [PATCH v2 3/5] gnu: Add freedict-tools-0.6.0 Runciter via Guix-patches via
2024-11-21  0:50   ` [bug#74411] [PATCH v2 4/5] gnu: Add freedict-dictionaries Runciter via Guix-patches via
2024-11-21  0:50   ` [bug#74411] [PATCH v2 5/5] gnu: freedict-tools: Fix non-determinism of dictzip compressed file headers Runciter via Guix-patches via
2024-11-21  1:15 ` Runciter via Guix-patches via [this message]

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