#!/bin/bash
set -e

confdir=$(dirname $0)
start_point="$1"
version="$2"
first_act="$3"
distmaker_tgt=all

if [ ! -f "$confdir/releaser.conf" ]; then
  echo
  echo "Missing configuration file. Please copy $confdir/releaser.conf.txt to $confdir/releaser.conf and edit it."
  exit 1
fi
source "$confdir/releaser.conf"

if [ -z "$start_point" -o -z "$version" -o -z "$first_act" ]; then
  echo
  echo "Usage:"
  echo "  $0 <start_point> <version> --build"
  echo "  $0 <start_point> <version> --publish"
  echo "  $0 <start_point> <version> --clean"
  echo "  $0 <start_point> <version> --build --publish --clean [[ORDER SIGNIFICANT]]"
  echo "Arguments:"
  echo "  <start_point> is a branch name (e.g. \"master\")"
  echo "  <version> is Civi release (e.g. \"4.3.beta2\"); it will become a tag name"
  exit 2
fi

if [ "`echo -n $version | tr -d 0-9.`" = '' ]; then
  is_stable=1
else
  is_stable=
fi

#################################################
## Git setup
function do_git_config() {
  git config --global user.name "$git_author_name"
  git config --global user.email "$git_author_email"
}

#################################################
## Create build directories; checkout repos
function do_mk_project() {
  for dir in \
    "$workdir" \
    "$workdir/$version" \
    "$workdir/$version/export" \
    "$workdir/$version/gen" \
    "$workdir/$version/tarballs" \
    "$workdir/$version/tmp"
  do
    if [ ! -d "$dir" ]; then
      mkdir -p "$dir"
    fi
  done

  $cmd_gitify all "$git_base_url" "$workdir/$version/export" --l10n
}

#################################################
## Tag all repos
function do_git_tag() {
  cd $workdir/$version
  for dir in export export/joomla export/WordPress export/packages ; do
    pushd $dir
      git checkout "$start_point"
      git tag "$version"
    popd
  done

  for drupal_ver in 6.x 7.x ; do
    pushd export/drupal
      git checkout "${drupal_ver}-${start_point}"
      git tag "${drupal_ver}-${version}"
    popd
  done
}

#################################################
## Publish tags via git
function do_git_tag_push() {
  cd $workdir/$version
  for dir in export export/joomla export/WordPress export/packages ; do
    pushd $dir
      git push -f origin "$version"
    popd
  done

  for drupal_ver in 6.x 7.x ; do
    pushd export/drupal
      git push -f origin "${drupal_ver}-${version}"
    popd
  done
}

#################################################
## Build
function do_distmaker() {
  cd $workdir/$version

  ## Determine SCM revision of main codebase
  pushd "export"
    rev=$(git rev-parse HEAD | head -c10)
  popd

  # create the distmaker.conf file
  echo "
  DM_SOURCEDIR=$workdir/$version/export
  DM_GENFILESDIR=$workdir/$version/gen
  DM_TMPDIR=$workdir/$version/tmp
  DM_TARGETDIR=$workdir/$version/tarballs
  DM_PHP=$cmd_php
  DM_RSYNC=$cmd_rsync
  DM_VERSION=$version
  DM_REVISION=$rev
  DM_ZIP=$cmd_zip
  DM_REF_CORE=${start_point}
  DM_REF_DRUPAL=7.x-${start_point}
  DM_REF_DRUPAL6=6.x-${start_point}
  DM_REF_JOOMLA=${start_point}
  DM_REF_WORDPRESS=${start_point}
  DM_REF_PACKAGES=${start_point}
  " > $workdir/$version/export/distmaker/distmaker.conf

  # create a minimal civicrm.settings.php file
  mkdir -p $workdir/$version/export/default
  echo "<?php define('CIVICRM_GETTEXT_RESOURCEDIR', '$workdir/$version/export/l10n/'); define('CIVICRM_UF', 'Drupal'); global \$civicrm_root; \$civicrm_root = '$workdir/$version/export'; ?>" > $workdir/$version/export/default/civicrm.settings.php

  # create a minimal settings_location.php file
  echo "<?php define('CIVICRM_CONFDIR', '$workdir/$version/export'); ?>" > $workdir/$version/export/settings_location.php

  # run the exported distmaker
  cd $workdir/$version/export/distmaker
  ./distmaker.sh $distmaker_tgt > $workdir/$version/build.log
}

#################################################
## Publish files
function do_publish() {
  # publish to sf.net
  cd $workdir/$version/tarballs

  $cmd_md5sum *.tar.gz *.tgz *.zip > civicrm-$version.MD5SUMS
  echo $gpg_pass | $cmd_gpg --armor --batch --passphrase-fd 0 --sign civicrm-$version.MD5SUMS

  if [ "$is_stable" ]; then
    echo mkdir ${publish_stable_dir}/$version | $cmd_sftp ${publish_ssh}
    $cmd_rsync -aP --exclude='*starterkit.tgz' *.tar.gz *.zip *MD5SUMS* ${publish_ssh}:${publish_stable_dir}/$version
  else
    echo mkdir ${publish_latest_dir}/$version | $cmd_sftp ${publish_ssh}
    $cmd_rsync -aP --exclude='*starterkit.tgz' *.tar.gz *.zip *MD5SUMS* ${publish_ssh}:${publish_latest_dir}/$version
  fi

  mv *.tar.gz *.tgz *.zip *MD5SUMS* $build_dest

  # publish to latest.civicrm.org
  # FIXME: isn't this racy when doing concurrent security releases
  if [ "$is_stable" ]; then
    echo $version > $latest/stable.txt
  fi
  echo $version > $latest/latest.txt
}

#################################################
## Cleanup
function do_cleanup() {
  cd $workdir/$version
  rm -rf export gen tmp tarballs tmp
}

#################################################
## Main

## Refactoring note: this used to be one monolithic script

shift ## start point
shift ## version
for ACT in "$@" ; do
  case "$ACT" in
    --build)
      set -ex
      do_git_config
      do_mk_project
      do_git_tag
      do_distmaker
      set +x
      ;;
    --publish)
      set -ex
      do_git_tag_push
      do_publish
      set +x
      ;;
    --clean)
      set -ex
      do_cleanup
      set +x
      ;;
    *)
      echo "unrecognized: $ACT"
      ;;
  esac
done