#!/bin/bash

set -o xtrace
set -o errexit

[ -f ".packages-defaults" ] && source .packages-defaults
BINDIR=$(dirname `readlink -e $0`)
source "${BINDIR}"/build-functions.sh

main () {
  set_default_params
  # Get package tree from gerrit
  fetch_upstream
  local _srcpath="${MYOUTDIR}/${PACKAGENAME}-src"
  local _specpath=$_srcpath
  local _testspath=$_srcpath
  [ "$IS_OPENSTACK" == "true" ] && _specpath="${MYOUTDIR}/${PACKAGENAME}-spec${SPEC_PREFIX_PATH}" && _testspath="${MYOUTDIR}/${PACKAGENAME}-spec"

  # Get last commit info
  # $message $author $email $cdate $commitsha $lastgitlog
  get_last_commit_info ${_srcpath}

  # Update specs
  local specfile=`find $_specpath -name *.spec`
  #local binpackagename=`rpm -q $RPMQUERYPARAMS --specfile $specfile --queryformat %{NAME}"\n" | head -1`
  local define_macros=(
      -D 'kernel_module_package_buildreqs kernel-devel'
      -D 'kernel_module_package(n:v:r:s:f:xp:) \
%package -n kmod-%{-n*} \
Summary: %{-n*} kernel module(s) \
Version: %{version} \
Release: %{release} \
%description -n kmod-%{-n*} \
This package provides the %{-n*} kernel modules
' )
  local version=`rpm -q "${define_macros[@]}" --specfile $specfile --queryformat %{VERSION}"\n" | head -1`
  pkg_version="${version}"
  local release=`rpm -q "${define_macros[@]}" --specfile $specfile --queryformat %{RELEASE}"\n" | head -1`
  ## Add changelog section if it doesn't exist
  [ "`cat ${specfile} | grep -c '^%changelog'`" -eq 0 ] && echo "%changelog" >> ${specfile}
  if [ "$IS_OPENSTACK" == "true" ] ; then
      # Get version number from the latest git tag for openstack packages
      local release_tag=$(git -C $_srcpath describe --abbrev=0 --candidates=1 | sed -r 's|^[^0-9]+||')
      # Deal with PyPi versions like 2015.1.0rc1
      # It breaks version comparison
      # Change it to 2015.1.0~rc1
      local script_dir=$(dirname $(readlink -e $0))
      local convert_version_py="$script_dir/convert_version.py"
      if grep -qE "^${SRC_PROJECT}\$" "$script_dir/fuel-projects-list"
      then
          local version_length=2
      fi
      version=$(python ${convert_version_py} --tag ${release_tag} \
                       ${version_length:+ -l $version_length})
      if [ "${version}" != "${pkg_version}" ] ; then
          echo -e "ERROR: Version mismatch. Latest version from Gerrit tag: $version, and from changelog: $pkg_version. Build aborted."
          exit 1
      fi
      # Get revision number as commit count for src+spec projects
      local _rev=$(git -C $_srcpath rev-list --no-merges ${release_tag}..origin/${SOURCE_BRANCH} | wc -l)
      [ "$GERRIT_CHANGE_STATUS" == "NEW" ] \
          && [ ${GERRIT_PROJECT} == "${SRC_PROJECT}" ] \
          && _rev=$(( $_rev + 1 ))
      [ "$IS_HOTFIX" == "true" ] \
          && _rev=$(get_extra_revision hotfix ${_srcpath} ${release_tag})
      [ "$IS_SECURITY" == "true" ] \
          && _rev=$(get_extra_revision security ${_srcpath} ${release_tag})
      local release="mos${_rev}"
      local TAR_NAME=${PACKAGENAME}-${version}.tar.gz
      # Update version and changelog
      sed -i "s|Version:.*$|Version: ${version}|" $specfile
      sed -i "/Release/s|%{?dist}.*$|%{?dist}~${release}|" $specfile
      sed -i "s|Source0:.*$|Source0: ${TAR_NAME}|" $specfile
      # Prepare source tarball
      pushd $_srcpath &>/dev/null
      local ignore_list="openstack-macros horizon-vendor-theme fuel-astute fuel-library fuel-main fuel-nailgun-agent fuel-ui fuel-web fuel-agent"
      if [ $(echo $ignore_list | grep -Eo "(^| )$PACKAGENAME( |$)") ]; then
          # Do not perform `setup.py sdist` for openstack-macros package
          tar -czf ${BUILDDIR}/$TAR_NAME $EXCLUDES .
      else
          python setup.py --version  # this will download pbr if it's not available
          PBR_VERSION=$release_tag python setup.py sdist -d ${BUILDDIR}/
          # Fix source folder name at sdist tarball
          local sdist_tarball=$(find ${BUILDDIR}/ -maxdepth 1 -name "*.gz")
          if [ "$(tar -tf $sdist_tarball | head -n 1 | cut -d'/' -f1)" != "${PACKAGENAME}-${version}" ] ; then
              # rename source folder
              local tempdir=$(mktemp -d)
              tar -C $tempdir -xf $sdist_tarball
              mv $tempdir/* $tempdir/${PACKAGENAME}-${version}
              tar -C $tempdir -czf ${BUILDDIR}/$TAR_NAME ${PACKAGENAME}-${version}
              rm -f $sdist_tarball
              [ -d "$tempdir" ] && rm -rf $tempdir
          else
              mv $sdist_tarball ${BUILDDIR}/$TAR_NAME || :
          fi
      fi
      cp $_specpath/rpm/SOURCES/* ${BUILDDIR}/ &>/dev/null || :
  else
     # TODO: Support unpacked source tree
     # Packed sources (.spec + .gz + stuff)
     # Exclude tests folder
     cp -R ${_srcpath}/* $BUILDDIR
     [ -d "${BUILDDIR}/tests" ] && rm -rf ${BUILDDIR}/tests
  fi
  ## Update changelog
  firstline=1
  if [ ! -z "$lastgitlog" ]; then
    sed -i "/^%changelog/i%newchangelog" ${specfile}
    echo "$lastgitlog" | while read LINE; do
      commitid=`echo "$LINE" | cut -d'|' -f1`
      email=`echo "$LINE" | cut -d'|' -f2`
      author=`echo "$LINE" | cut -d'|' -f3`
      # Get current date to avoid wrong chronological order in %changelog section
      date=`LC_TIME=C date +"%a %b %d %Y"`
      subject=`echo "$LINE" | cut -d'|' -f4`

      [ $firstline == 1 ] && sed -i "/^%changelog/i\* $date $author \<${email}\> \- ${version}-${release}" ${specfile}
      sed -i "/^%changelog/i\- $commitid $subject" ${specfile}
      firstline=0
    done
    sed -i '/^%changelog/i\\' ${specfile}
    sed -i '/^%changelog/d' ${specfile}
    sed -i 's|^%newchangelog|%changelog|' ${specfile}
  fi
  echo "Resulting spec-file:"
  cat ${specfile}
  cp ${specfile} ${BUILDDIR}/
  # Prepare tests folder to provide as parameter
  rm -f ${WRKDIR}/tests.envfile
  [ -d "${_testspath}/tests" ] && echo "TESTS_CONTENT='`tar -cz -C ${_testspath} tests | base64 -w0`'" > ${WRKDIR}/tests.envfile

  # Build stage
  local REQUEST=$REQUEST_NUM
  [ -n "$LP_BUG" ] && REQUEST=$LP_BUG
  RPM_HOTFIX_REPO_PATH=${RPM_HOTFIX_REPO_PATH:-${RPM_OS_REPO_PATH%/*}/hotfix}
  [ -n "${EXTRAREPO}" ] && EXTRAREPO="${EXTRAREPO}|"
  EXTRAREPO="${EXTRAREPO}repo1,http://${REMOTE_REPO_HOST}/${RPM_OS_REPO_PATH}/x86_64"
  case true in
      "$IS_HOTFIX" )
          EXTRAREPO="${EXTRAREPO}|repo2,http://${REMOTE_REPO_HOST}/${RPM_HOTFIX_REPO_PATH}/x86_64"
          EXTRAREPO="${EXTRAREPO}|repo3,http://${REMOTE_REPO_HOST}/${RPM_UPDATES_REPO_PATH}/x86_64"
          EXTRAREPO="${EXTRAREPO}|repo4,http://${REMOTE_REPO_HOST}/${RPM_SECURITY_REPO_PATH}/x86_64"
          ;;
      "$IS_SECURITY" )
          EXTRAREPO="${EXTRAREPO}|repo2,http://${REMOTE_REPO_HOST}/${RPM_UPDATES_REPO_PATH}/x86_64"
          EXTRAREPO="${EXTRAREPO}|repo3,http://${REMOTE_REPO_HOST}/${RPM_SECURITY_REPO_PATH}/x86_64"
          ;;
      "$IS_UPDATES" )
          EXTRAREPO="${EXTRAREPO}|repo2,http://${REMOTE_REPO_HOST}/${RPM_PROPOSED_REPO_PATH}/x86_64"
          EXTRAREPO="${EXTRAREPO}|repo2,http://${REMOTE_REPO_HOST}/${RPM_UPDATES_REPO_PATH}/x86_64"
          EXTRAREPO="${EXTRAREPO}|repo3,http://${REMOTE_REPO_HOST}/${RPM_SECURITY_REPO_PATH}/x86_64"
          ;;
  esac

  if [ "$GERRIT_CHANGE_STATUS" == "NEW" ] && [ -n "$LP_BUG" -o -n "$CUSTOM_REPO_ID" ] ; then
      case true in
          "$IS_HOTFIX" )
              local RPM_REQUEST_REPO_PATH=$RPM_HOTFIX_REPO_PATH
              ;;
          "$IS_SECURITY" )
              local RPM_REQUEST_REPO_PATH=$RPM_SECURITY_REPO_PATH
              ;;
          "$IS_UPDATES" )
              local RPM_REQUEST_REPO_PATH=$RPM_PROPOSED_REPO_PATH
              ;;
          * )
              local RPM_REQUEST_REPO_PATH=$RPM_OS_REPO_PATH
              ;;
      esac
      EXTRAREPO="${EXTRAREPO}|repo5,http://${REMOTE_REPO_HOST}/${REPO_REQUEST_PATH_PREFIX}/${REQUEST}/${RPM_REQUEST_REPO_PATH}/x86_64"
  fi

  export EXTRAREPO

  if [ -n "$EXTRAREPO" ] ; then
      local EXTRAPARAMS=""
      local OLDIFS="$IFS"
      IFS='|'
      for repo in $EXTRAREPO; do
        IFS="$OLDIFS"
        [ -n "$repo" ] && EXTRAPARAMS="${EXTRAPARAMS} --repository ${repo#*,}"
        IFS='|'
      done
      IFS="$OLDIFS"
  fi

  local tmpdir=$(mktemp -d ${PKG_DIR}/build-XXXXXXXX)
  echo "BUILD_SUCCEEDED=false" > ${WRKDIR}/buildresult.params
  bash -c "${WRKDIR}/build \
        --verbose \
        --no-keep-chroot \
        --dist ${DIST} \
        --build \
        --source $BUILDDIR \
        --output $tmpdir \
        ${EXTRAPARAMS}"
  local exitstatus=$(cat ${tmpdir}/exitstatus || echo 1)
  [ -f "${tmpdir}/build.log" ] && mv "${tmpdir}/build.log" "${WRKDIR}/buildlog.txt"
  [ -f "${tmpdir}/root.log" ] && mv "${tmpdir}/root.log" "${WRKDIR}/rootlog.txt"

  fill_buildresult $exitstatus 0 $PACKAGENAME RPM
  if [ "$exitstatus" == "0" ] ; then
      rm -f ${WRKDIR}/buildresult.params
      cat >${WRKDIR}/buildresult.params<<-EOL
		BUILD_HOST=`hostname -f`
		PKG_PATH=$tmpdir
		GERRIT_CHANGE_STATUS=$GERRIT_CHANGE_STATUS
		REQUEST_NUM=$REQUEST_NUM
		LP_BUG=$LP_BUG
		IS_SECURITY=$IS_SECURITY
		IS_HOTFIX=$IS_HOTFIX
		EXTRAREPO="$EXTRAREPO"
		REPO_TYPE=rpm
		DIST=$DIST
		EOL
  fi

  exit $exitstatus
}

main "$@"

exit 0