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From: ludo@gnu.org (Ludovic Courtès)
To: Danny Milosavljevic <dannym@scratchpost.org>
Cc: 27563@debbugs.gnu.org
Subject: bug#27563: [PATCH v3 0/2] Make ghostscript reproducible.
Date: Fri, 07 Jul 2017 14:00:09 +0200	[thread overview]
Message-ID: <87tw2oa246.fsf@gnu.org> (raw)
In-Reply-To: <20170706103216.25939-1-dannym@scratchpost.org> (Danny Milosavljevic's message of "Thu, 6 Jul 2017 12:32:14 +0200")

Danny Milosavljevic <dannym@scratchpost.org> skribis:

> Also, newer PDF files have an RDF header specifying some extra information
> in an XML-like format.  For example there's an instance UUID (PDF/A specifies
> that it's recommended to set this to an empty string), and a document UUID.
> The latter again is time-based.

If it’s time-based, then the solution may be to honor SOURCE_DATE_EPOCH.

I asked on #reproducible-builds (OFTC).  A patch had been proposed
upstream but rejected:

  http://bugs.ghostscript.com/show_bug.cgi?id=696765

See also
<https://wiki.debian.org/ReproducibleBuilds/PdfGeneratedByGhostscript>.

Ludo’.

  parent reply	other threads:[~2017-07-07 12:01 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-03 18:08 bug#27563: ghostscript-with-cups is not reproducible Danny Milosavljevic
2017-07-03 18:16 ` bug#27563: [PATCH] gnu: ghostscript: Add phase "remove-timestamps" Danny Milosavljevic
2017-07-03 19:18   ` Efraim Flashner
2017-07-05 21:57     ` Ludovic Courtès
2017-07-04 19:08   ` Leo Famulari
2017-07-03 19:46 ` bug#27563: [PATCH v2] gnu: ghostscript: Remove timestamps Danny Milosavljevic
2017-07-06  9:07 ` bug#27563: [PATCH] gnu: ghostscript: Don't write document UUID; use "" as instance UUID Danny Milosavljevic
2017-07-07 11:55   ` Ludovic Courtès
2017-07-07 13:28     ` Danny Milosavljevic
2017-07-06 10:32 ` bug#27563: [PATCH v3 0/2] Make ghostscript reproducible Danny Milosavljevic
2017-07-06 10:32   ` bug#27563: [PATCH v3 1/2] gnu: ghostscript: Don't write document UUID; use "" as instance UUID Danny Milosavljevic
2017-07-06 10:32   ` bug#27563: [PATCH v3 2/2] gnu: ghostscript: Write document ID only when encrypting Danny Milosavljevic
2017-07-07 12:02     ` Ludovic Courtès
2017-07-07 13:21       ` Danny Milosavljevic
2017-07-07 16:21         ` Leo Famulari
2017-07-07 16:42           ` Danny Milosavljevic
2017-07-07 17:24             ` Leo Famulari
2017-07-08 13:50               ` Leo Famulari
2017-07-07 17:45             ` Ludovic Courtès
2017-07-07 12:00   ` Ludovic Courtès [this message]
2017-07-07 13:25     ` bug#27563: [PATCH v3 0/2] Make ghostscript reproducible Danny Milosavljevic
2017-07-07 15:18       ` Ludovic Courtès
2017-07-07 15:44         ` Danny Milosavljevic
2017-07-07 17:51           ` Ludovic Courtès
2017-07-07 18:20             ` Danny Milosavljevic
2017-07-08 14:32               ` Ludovic Courtès
2017-07-09 23:40         ` bug#27563: [PATCH v4 0/3] " Danny Milosavljevic
2017-07-09 23:46           ` bug#27563: [PATCH v4 1/3] gnu: ghostscript: Make "/ID" optional, depending on environment variable Danny Milosavljevic
2017-07-09 23:46             ` bug#27563: [PATCH v4 2/3] gnu: ghostscript: Make XMP UUID headers " Danny Milosavljevic
2017-07-10 15:23               ` Ludovic Courtès
2017-07-09 23:46             ` bug#27563: [PATCH v4 3/3] gnu: ghostscript: Make "/CreationDate", "/ModDate" optoinal, " Danny Milosavljevic
2017-07-10 15:25               ` Ludovic Courtès
2017-07-10 15:21             ` bug#27563: [PATCH v4 1/3] gnu: ghostscript: Make "/ID" optional, " Ludovic Courtès
2017-07-10 16:35           ` bug#27563: [PATCH v4 0/3] Make ghostscript reproducible Danny Milosavljevic
2017-07-07 15:34     ` bug#27563: [PATCH v3 0/2] " Danny Milosavljevic
2017-07-07 17:46       ` Ludovic Courtès
2017-07-06 10:59 ` bug#27563: ghostscript-with-cups is not reproducible Danny Milosavljevic

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