#!/bin/bash
# This script is used for running the tests with proper arguments
# from within Jenkins

set -e
set -u
set -x

if [ -d /results ] ; then
  # Running from Jenkins (RW)
  RESULTS="/results"

  cd "/code"
else
  # Running locally in Docker
  RESULTS="./results"
  mkdir -p "${RESULTS}"
fi

source_path="$(pwd)"

# jenkins environment vars
if [ -z "${release:-}" ] ; then
  release="none"
fi
if [ -z "${tag:-}" ] ; then
  tag="none"
fi
if [ -z "${old_version:-}" ] ; then
  old_version="latest_tag"
fi
if [ -z "${new_version:-}" ] ; then
  new_version="none"
fi
if [ -z "${branch:-}" ] ; then
  branch="none"
fi

# only run inside docker environments as root user
if [ -f /.dockerenv ] && [[ "$(id -u)" == "0" ]] ; then
  # the environment passed to docker might claim to have
  # /var/lib/jenkins for $HOME, but we might be running
  # under user root, so ensure the ~/.gitconfig can be found
  # at the appropriate place
  echo "Fixing HOME for user root (changing from '${HOME}' to '/root')"
  export HOME=/root/
fi

if [[ "${release}" =~ ^release-mr ]] ; then
  echo "release detected"
  short_release=${release%%-update}
  short_release=${short_release##release-}

  if [[ "${short_release}" =~ ^mr([0-9]+)\.([0-9]+)\.([0-9]+)$ ]] ; then
    common_release="mr${BASH_REMATCH[1]}.${BASH_REMATCH[2]}\."
    new_version="${tag}"
  else
    echo "yellow zone release detected"
    common_release="${short_release}\."
  fi
  old_version=$(cd "${source_path}" ; git tag | grep -v jenkins-libtcap | \
      grep "${common_release}" | sort -r | head -1)

  if [ -z "${old_version}" ] ; then
    echo "No tag found for ${common_release}. Using latest_tag"
    old_version="latest_tag"
  fi
else
  if [ "${old_version}" = "latest_tag" ] ; then
    if [[ "${branch}" =~ ^mr[0-9]+\.[0-9]+$ ]] ; then
      old_version=$(cd "${source_path}" ; git tag | grep -v jenkins-libtcap | \
        grep "${branch}\." | sort -r | head -1)
    fi
  fi

  if [ "$new_version" = "none" ] ; then
    echo "New version is unset, defaulting to master"
    new_version=master
  fi
fi

if [ "${old_version}" = "latest_tag" ] ; then
  old_version=$(cd "${source_path}" ; git tag | grep -v jenkins-libtcap |\
    sort -r | head -1)
fi

RESULTS=${RESULTS} ./t/abi-check.sh "$old_version" "$new_version"