[Bug 1960749] Re: dpkg incorrectly installs singular-doc in jammy Docker container

[Julian Andres Klode]

So the reason why the symlinks are there is because they could be
pointing to directories and then if you had a file extracted in there,
you'd get not found if you'd skip the symlink. Like consider

/usr/share/doc/foo/bar as a symlink to /usr/share/foo/bar

and another package installs a file into /usr/share/doc/foo/bar/ rather
than the canonical location.

This is documented in the dpkg manual page and tracked upstream in

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=859646

dpkg -V is tracked upstream in https://bugs.debian.org/cgi-
bin/bugreport.cgi?bug=975338


** Bug watch added: Debian Bug tracker #859646
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=859646

** Bug watch added: Debian Bug tracker #975338
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=975338

** Also affects: dpkg (Debian) via
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=859646
   Importance: Unknown
       Status: Unknown

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to dpkg in Ubuntu.
https://bugs.launchpad.net/bugs/1960749

Title:
  dpkg incorrectly installs singular-doc in jammy Docker container

Status in dpkg package in Ubuntu:
  Triaged
Status in dpkg package in Debian:
  Unknown

Bug description:
  Also reported on https://github.com/tianon/docker-brew-ubuntu-
  core/issues/230

  Using official Jammy image in Docker (macOS) and Podman (Fedora).
  In both cases, using CLI in the image and running

  apt install singular-doc
  dpkg -V singular-doc
  reports a lot of missing files. In fact, the only present files are dangling links to missing files in the package.
  (EDIT: the latter should not be there, it contradics `exclude` policy for dpkg installed in the Docker image)

  The package itself is not broken - extracting it in Jammy not in Docker/Podman (say, in an lxc container) works.
  And extracting it in Debian/bookworm CLI run in Docker works too.

  As well, the same behaviour is observed using the corresponding
  singular-doc_4.2.1-p3+ds-1_all.deb file, and installing it using dpkg
  -i. This points to dpkg as the culprit.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/1960749/+subscriptions