Bug#828025: autopkgtest cmd sensitive to PWD when passed an absolute path to a .changes file

[Sean Whitton]

Package: autopkgtest
Version: 4.0.1
Severity: normal

Dear maintainers,

When passing an absolute path to a changes file to autopkgtest, e.g.

    $ autopkgtest /home/spwhitton/src/foo_1.0.0_i386.changes -- schroot unstable-i386-sbuild

autopkgtest fails and prints a usage message unless the PWD is
/home/spwhitton/src/foo.  If the PWD is /home/spwhitton/src or anywhere
else:

    usage: autopkgtest [options] [testbinary ...] testsrc -- virt-server [options]
    autopkgtest: error: You must specify source or click package to test

autopkgtest should look for the .dsc mentioned in the .changes file in
the directory containing the .changes file.

Workaround I'm using in a shell script:

    (
        cd "$(dirname $1)/$(basename $1 | cut -d_ -f1)"
        autopkgtest "$1" -- schroot "$2"
    )

where $1 is the .changes file and $2 is the sbuild schroot.

Thanks!

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (900, 'testing')
Architecture: i386 (i686)

Kernel: Linux 4.6.0-1-686-pae (SMP w/2 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages autopkgtest depends on:
ii  apt-utils       1.2.13
ii  libdpkg-perl    1.18.7
ii  procps          2:3.3.11-3
ii  python3         3.5.1-4
ii  python3-debian  0.1.27

Versions of packages autopkgtest recommends:
ii  autodep8  0.6

Versions of packages autopkgtest suggests:
pn  lxc          <none>
pn  lxd-client   <none>
pn  qemu-system  <none>
ii  qemu-utils   1:2.6+dfsg-3
ii  schroot      1.6.10-2

-- no debconf information

-- 
Sean Whitton
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