Your message dated Sun, 04 Jan 2015 17:48:26 +0000
with message-id <[email protected]>
and subject line Bug#774558: fixed in grace 1:5.1.24-3
has caused the Debian Bug report #774558,
regarding grace: dpkg trigger cycle via gsfonts
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
774558: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=774558
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: grace
Version: 1:5.1.24-2
Severity: serious

Hi,

The grace package has a trigger cycle via the gsfonts package.  This
was detected by a script on jenkins.debian.net[1].

Steps to reproduce the cycle (in a Jessie/sid chroot):

"""
apt-get install gsfonts grace
dpkg --unpack /var/cache/apt/archives/gsfonts_${GSFONTS_VERSION}_*.deb
dpkg --configure --pending
"""

This simulates an upgrade scenario, where gsfonts might be temporarily
deconfigured while gsfonts remains configured.  If this happens, dpkg
is unable to recover as the cycle requires gsfonts to be configured
for it to run the trigger becayse grace depends on gsfonts.

Known solutions:

 * Use no-await triggers.  *CAVEAT*: not always applicable.  Known suitable
   use cases includes "cache" handling, where the cache is allowed to be
   out of date tempoarily.
 * Reduce the dependency to Recommends.  *CAVEAT*: Rarely applicable.
 * Rewrite the solution to avoid triggers entirely. *CAVEAT*: May be
   non-trivial and likely to involve updates to at least gsfonts.

~Niels

[1] 
https://jenkins.debian.net/view/Warnings/job/dpkg_sid_find_trigger_cycles/24/console

--- End Message ---
--- Begin Message ---
Source: grace
Source-Version: 1:5.1.24-3

We believe that the bug you reported is fixed in the latest version of
grace, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Nicholas Breen <[email protected]> (supplier of updated grace package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Format: 1.8
Date: Sun, 04 Jan 2015 09:29:02 -0800
Source: grace
Binary: grace
Architecture: source amd64
Version: 1:5.1.24-3
Distribution: unstable
Urgency: medium
Maintainer: Nicholas Breen <[email protected]>
Changed-By: Nicholas Breen <[email protected]>
Description:
 grace      - XY graphing and plotting tool
Closes: 774558
Changes:
 grace (1:5.1.24-3) unstable; urgency=medium
 .
   * Switch to "interest-noawait" triggers to avoid a possible configuration
     loop with gsfonts.  (Closes: #774558)
   * Update Standards-Version to 3.9.6, no changes required.
Checksums-Sha1:
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 a2cb8f614dae6a14627e3815b23eca276bd9dfc9 108036 grace_5.1.24-3.debian.tar.xz
 fb02d4debe4ac92aedd9147d26865ab73e0b364c 1608314 grace_5.1.24-3_amd64.deb
Checksums-Sha256:
 b1257499316f5c1f7cc54136aa47b9f6e350f8f283cb63894c64d84b9621c0cf 2165 
grace_5.1.24-3.dsc
 85a953fda074f2732b9c7c29687434d2b97423c3b22775e7d2809c5fbbc19e4c 108036 
grace_5.1.24-3.debian.tar.xz
 b9b102da590483890bb4e3f7fe9bd748d04568001ee4131b3d496a3278db770a 1608314 
grace_5.1.24-3_amd64.deb
Files:
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 7a1d15f998f857551f099dd9354c9041 108036 math optional 
grace_5.1.24-3.debian.tar.xz
 58934d05ba6611b86204a18c1e271d66 1608314 math optional grace_5.1.24-3_amd64.deb

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--- End Message ---

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