Your message dated Fri, 13 Sep 2024 19:05:07 +0000
with message-id <e1spbbp-0018zf...@fasolo.debian.org>
and subject line Bug#1072731: fixed in libfishcamp 1.2+20220607003151-3
has caused the Debian Bug report #1072731,
regarding violates policy 8.2: soname-independent library support files
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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--
1072731: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1072731
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: libfishcamp1t64
Version: 1.2+20220607003151-2
Severity: serious
Tags: patch
User: helm...@debian.org
Usertags: dep17p1
Control: clone -1 -2
Control: retitle -2 violates policy 8.2: soname-independent library support
files
Hi Thorsten,
I am sorry to tell you that libfishcamp1t64 slipped through my review.
It really is one of the packages that cannot be just moved. I'll review
my analysis regarding this after sending this patch.
libfishcamp combines three ingredients:
* It installed aliased files in bookworm (firmware and udev rules)
* It is affected by the time64 transition and thus renames packages.
* It installs files that are not soname-dependent into the shared
library package violating Debian policy section 8.2. I've cloned a
separate bug about this problem.
As a result, you are experiencing a DEP17 P1 problem. Roughly speaking,
an upgrade could first unpack libfishcamp1t64 thereby installing the
firmware and udev files into /usr. In doing so, dpkg overwrites the
files from libfishcamp1 without attributing it to Replaces due to the
difference in aliasing. Then, when libfishcamp1 is removed, it also
removes firmware and udev files for real as they have not been replaced.
Once the upgrade is complete, these files go missing.
So this is indeed a case where dh-sequence-movetousr does not just work
(and maybe it now becomes more clear why we didn't make
dh-sequence-movetousr opt-out). There are multiple options to mitigate
this with varying level of reliability. A reliable mitigation requires
using protective diversions installed for the entire trixie release.
This is fairly annoying and causes maintenance costs down the road
(removing diversions, later removing diversion removing code). I propose
using a less reliable method for this case. fishcamp seems to be a
relatively unpopular package, so the number of affected users is
expected to be small. When upgrading the Breaks to Conflicts (without
having reverse Breaks), we are not aware of any scenario where this
mitigation would be unreliable when using apt or aptitude (i.e. you need
to install libfishcamp1t64 using dpkg directly in a specific setting to
actually experience file loss). In any case, users can detect the loss
using dpkg --verify and reinstalling libfishcamp1t64 will reinstate the
lost files. Loss of these files would likely not render systems
unbootable. Hence, I think this is a relatively low probability,
relatively low impact and the more reliable mitigation has significantly
higher maintenance cost.
Do you agree with this risk assessment? If not, I can provide a more
elaborate patch doing a more reliable mitigation.
Another alternative to fixing this problem is reverting the t64
transition. I looked for the abi report, but there is none nor is there
a bug report from the t64 people. Hence, I looked at the headers and
found that none of them use off_t or time_t or other relevant types in
structures or types. time_t is used internally, but not exposed. As a
result, fishcamp very likely is unaffected by the time64 transition and
its rename can be reverted. The revert briefly introduces the reverse
DEP17 P1 problem into unstable, but for bookworm -> trixie upgrades,
things would work then. If you opt for reverting, you don't have to use
Conflicts and you can continue to use dh-sequence-movetousr.
I note that the attached patch is not appropriate for bookworm-backports
(but neither is the t64 rename).
Helmut
diff --minimal -Nru libfishcamp-1.2+20220607003151/debian/changelog
libfishcamp-1.2+20220607003151/debian/changelog
--- libfishcamp-1.2+20220607003151/debian/changelog 2024-06-03
23:30:36.000000000 +0200
+++ libfishcamp-1.2+20220607003151/debian/changelog 2024-06-07
10:14:24.000000000 +0200
@@ -1,3 +1,12 @@
+libfishcamp (1.2+20220607003151-2.1) UNRELEASED; urgency=medium
+
+ * Non-maintainer upload.
+ * Mitigate /usr-move DEP17 P1 problems. (Closes: #-1)
+ + Manually move files instead of using dh-sequence-movetousr.
+ + Upgrade Breaks to Conflicts.
+
+ -- Helmut Grohne <hel...@subdivi.de> Fri, 07 Jun 2024 10:14:24 +0200
+
libfishcamp (1.2+20220607003151-2) unstable; urgency=medium
* upload to unstable
diff --minimal -Nru libfishcamp-1.2+20220607003151/debian/control
libfishcamp-1.2+20220607003151/debian/control
--- libfishcamp-1.2+20220607003151/debian/control 2024-06-03
23:30:36.000000000 +0200
+++ libfishcamp-1.2+20220607003151/debian/control 2024-06-07
10:14:24.000000000 +0200
@@ -8,7 +8,6 @@
, libusb-1.0-0-dev
, zlib1g-dev
, libindi-dev
- , dh-sequence-movetousr
Standards-Version: 4.7.0
Homepage: https://github.com/indilib/indi-3rdparty
Rules-Requires-Root: no
@@ -19,7 +18,7 @@
Package: libfishcamp1t64
Provides: ${t64:Provides}
Replaces: libfishcamp1
-Breaks: libfishcamp1 (<< ${source:Version})
+Conflicts: libfishcamp1 (<< ${source:Version})
Architecture: any
Depends: ${shlibs:Depends}, ${misc:Depends}
Description: library for cameras made by Fishcamp Engineering
diff --minimal -Nru
libfishcamp-1.2+20220607003151/debian/libfishcamp1t64.install
libfishcamp-1.2+20220607003151/debian/libfishcamp1t64.install
--- libfishcamp-1.2+20220607003151/debian/libfishcamp1t64.install
2024-06-03 23:30:36.000000000 +0200
+++ libfishcamp-1.2+20220607003151/debian/libfishcamp1t64.install
2024-06-07 10:14:24.000000000 +0200
@@ -1,4 +1,4 @@
usr/lib/*/libfishcamp.so.*
-lib/firmware/gdr_usb.hex
-lib/firmware/Guider_mono_rev16_intel.srec
-lib/udev/rules.d/99-fishcamp.rules
+lib/firmware/gdr_usb.hex usr/lib/firmware/
+lib/firmware/Guider_mono_rev16_intel.srec usr/lib/firmware/
+lib/udev/rules.d/99-fishcamp.rules usr/lib/udev/rules.d/
--- End Message ---
--- Begin Message ---
Source: libfishcamp
Source-Version: 1.2+20220607003151-3
Done: Thorsten Alteholz <deb...@alteholz.de>
We believe that the bug you reported is fixed in the latest version of
libfishcamp, 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 1072...@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Thorsten Alteholz <deb...@alteholz.de> (supplier of updated libfishcamp 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 ftpmas...@ftp-master.debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Fri, 13 Sep 2024 18:30:36 +0200
Source: libfishcamp
Binary: libfishcamp-dev libfishcamp1t64 libfishcamp1t64-dbgsym
Architecture: source amd64
Version: 1.2+20220607003151-3
Distribution: unstable
Urgency: medium
Maintainer: Debian Astronomy Team
<debian-astro-maintain...@lists.alioth.debian.org>
Changed-By: Thorsten Alteholz <deb...@alteholz.de>
Description:
libfishcamp-dev - library for cameras made by Fishcamp Engineering -
development fi
libfishcamp1t64 - library for cameras made by Fishcamp Engineering
Closes: 1072730 1072731
Changes:
libfishcamp (1.2+20220607003151-3) unstable; urgency=medium
.
* Mitigate /usr-move DEP17 P1 problems. (Closes: #1072730)
+ Manually move files instead of using dh-sequence-movetousr.
+ Upgrade Breaks to Conflicts.
(thanks a lot to Helmut for the patch!)
(Closes: #1072731 as well)
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