#!/bin/sh
# Copyright 2013 Michael Prokop <mika@debian.org>
# Copyright 2012 Christoph Berg <myon@debian.org>
# Licensed under the terms of the MIT License.

if [ "${ADT:-}" = "skip" ]; then
  echo "Skipping autopkgtests as requested (ADT is set to 'skip')"
  exit 0
fi

if [ "${ADT:-}" = "external" ]; then
  echo "Skipping internal autopkgtests as external testing was requested via ADT variable"
  exit 0
fi

set -ex

cd /tmp/buildd/*/debian/..

if [ ! -f debian/tests/control ]; then
  echo "Package does not have autopkgtest support, debian/tests/control is missing"
  exit 0
fi

if [ ! -f debian/files ]; then
  echo "Package source is not built, debian/files is missing" >&2
  exit 1
fi

if [ -n "${ADT_OPTIONS:-}" ] ; then
  echo "*** Using provided ADT_OPTIONS $ADT_OPTIONS ***"
fi

# try to launch autopkgtest in a new PID namespace so several testsuites can run
# in parallel, newpid exists in jessie and newer only though
unset newpid_name
if ! apt-cache policy newpid | grep -q 'newpid:' ; then
 echo "The newpid package doesn't seem to be available, not considering for installation"
else
  echo "The newpid package seems to be available, considering for installation"
  newpid_name='newpid'
fi

# autopkgtest uses apt-utils's apt-ftparchive and
# pbuilder's pbuilder-satisfydepends-classic
apt-get install -y autopkgtest apt-utils pbuilder $newpid_name

if [ -x /usr/bin/autopkgtest ]; then
  # starting with autopkgtest 5.0 there's only the dedicated autopkgtest CLI
  AUTOPKG_BINARY=autopkgtest
elif [ -x /usr/bin/adt-run ] ; then
  # autopkgtest as in Debian/jessie (v3.6jessie1) and older doesn't provide
  # autopkgtest binary yet, but let's be backwards compatible
  AUTOPKG_BINARY=adt-run
else
  echo "Error: neither autopkgtest nor adt-run binary found." >&2
  exit 1
fi

# since autopkgtest 3.16 the --tmp-dir option is gone, make sure
# we've --output-dir available though before using it
if "$AUTOPKG_BINARY" --help | grep -q -- --output-dir 2>/dev/null ; then
  OUTPUT_OPTION='--output-dir'
else
  OUTPUT_OPTION='--tmp-dir'
fi

mkdir -p /tmp/buildd/autopkgtest.out

if [ -x /usr/bin/autopkgtest ]; then
  # new autopkgtest interface
  $newpid_name "$AUTOPKG_BINARY" \
    ${OUTPUT_OPTION} /tmp/buildd/autopkgtest.out \
    --summary /tmp/buildd/autopkgtest.summary \
    "${PWD}" \
    /tmp/buildd/*.deb \
    ${ADT_OPTIONS:-} -- null || EXIT=$?
else
  # old adt interface
  $newpid_name "$AUTOPKG_BINARY" \
    ${OUTPUT_OPTION} /tmp/buildd/autopkgtest.out \
    --summary /tmp/buildd/autopkgtest.summary \
    /tmp/buildd/*.deb \
    --built-tree "${PWD}" \
    ${ADT_OPTIONS:-} --- adt-virt-null || EXIT=$?
fi

# collect autopkgtest output in a single file so pbuilder automatically copies it
tar acf /tmp/buildd/autopkgtest.tar.gz /tmp/buildd/autopkgtest.out

case ${EXIT:-0} in
  2|4|6|8) # let jdg-tap-adtsummary report the failure
    exit 0
    ;;
  *)
    exit ${EXIT:-0}
    ;;
esac