[Bug 1646544] Re: adt-run in zesty fails

[Martin Pitt]

This apparently broke with
http://anonscm.debian.org/cgit/autopkgtest/autopkgtest.git/commit/?id=85621d2f0
. With -d I see

+ export PATH=/tmp/autopkgtest.a5vAMh/deps/sbin:/tmp/autopkgtest.a5vAMh/deps/bin:/tmp/autopkgtest.a5vAMh/deps/usr/sbin:/tmp/autopkgtest.a5vAMh/deps/usr/bin:/tmp/autopkgtest.a5vAMh/deps/usr/games:/sbin:/usr/sbin:/bin:/usr/bin
+ mktemp -d /tmp/autopkgtest.a5vAMh/build.XXX
+ builddir=/tmp/autopkgtest.a5vAMh/build.ktb
+ cd /tmp/autopkgtest.a5vAMh/build.ktb
+ cp -rd --preserve=timestamps -- /tmp/autopkgtest.a5vAMh/ubtree- real-tree
+ [ -x real-tree/debian/rules ]
+ dpkg-source --before-build real-tree
dpkg-source: error: changelog format debian is unknown

while this looks different without the read-only apt:

+ dpkg-source --before-build real-tree
sh: 1: gcc: not found
dpkg-source: warning: couldn't determine gcc system type, falling back to default (native compilation)
+ chmod -R a+rX .
+ cd real-tree/.

So obviously dpkg-source fails when being called from /tmp/, which is
easy to reproduce in the VM (with -s):

ubuntu at autopkgtest:/tmp/autopkgtest.QZEKZ1/build.wod$ PERL5LIB=../deps/usr/share/perl5 ../deps/usr/bin/dpkg-source --before-build real-tree
dpkg-source: error: changelog format debian is unknown

It should just use ../deps/usr/share/perl5/Dpkg/Changelog/Debian.pm
here:

    # Find the right changelog parser.
    my $format = ucfirst lc $options{changelogformat};
    my $changes;
    eval qq{
        require Dpkg::Changelog::$format;
        \$changes = Dpkg::Changelog::$format->new();
    };
    error(g_('changelog format %s is unknown: %s'), $format, $@) if $@;

But in strace I cannot see any attempt to open "Changelog.*ebian"
whereas I totally can when dpkg-dev is installed:

  open("/usr/share/perl5/Dpkg/Changelog/Debian.pm", O_RDONLY) = 3

At this point this becomes a bit tedious to track down.

I also suppose this is not really an issue any more as it works fine in
xenial and vivid is dead now?

** Summary changed:

- adt-run in zesty fails
+ "changelog format debian is unknown" with read-only testbeds on < xenial

** Changed in: autopkgtest (Ubuntu)
   Importance: Undecided => Low

** Changed in: autopkgtest (Ubuntu)
     Assignee: Martin Pitt (pitti) => (unassigned)

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https://bugs.launchpad.net/bugs/1646544

Title:
  "changelog format debian is unknown" with read-only testbeds on <
  xenial

Status in autopkgtest package in Ubuntu:
  Triaged

Bug description:
  Please see the attached error message for ubuntu-system-tests
  http://paste.ubuntu.com/23563649/ the test setup fails with these
  errors:

  dpkg-source: error: changelog format debian is unknown
  blame: /home/om26er/code/canonical/ubuntu-system-tests
  badpkg: rules extract failed with exit code 2
  adt-run [20:11:46]: ERROR: erroneous package: rules extract failed with exit code 2

  I downgraded autopkg test to yakkety version and my test setup ran
  successfully.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: autopkgtest 4.2.2
  ProcVersionSignature: Ubuntu 4.8.0-28.30-generic 4.8.6
  Uname: Linux 4.8.0-28-generic x86_64
  ApportVersion: 2.20.3-0ubuntu8
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Dec  1 21:47:06 2016
  InstallationDate: Installed on 2016-11-13 (17 days ago)
  InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
  PackageArchitecture: all
  SourcePackage: autopkgtest
  UpgradeStatus: Upgraded to zesty on 2016-11-22 (9 days ago)

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