#!/bin/bash

# TODO
# http://ftp.mozilla.org/pub/firefox/candidates/48.0-candidates/build2/linux-x86_64/en-US/firefox-48.0.json
# "moz_source_stamp": "c1de04f39fa956cfce83f6065b0e709369215ed5"
# http://ftp.mozilla.org/pub/firefox/candidates/48.0-candidates/build2/l10n_changesets.txt

CHANNEL="release"
BRANCH="releases/mozilla-$CHANNEL"
RELEASE_TAG="FIREFOX_59_0_2_RELEASE"
VERSION="59.0.2"

# check required tools
test -x /usr/bin/hg || ( echo "hg missing: execute zypper in mercurial"; exit 5 )
test -x /usr/bin/jq || ( echo "jq missing: execute zypper in jq"; exit 5 )


# mozilla
if [ -d mozilla ]; then
  pushd mozilla
  _repourl=$(hg paths)
  case "$_repourl" in
    *$BRANCH*)
      echo "updating previous tree"
      hg pull
      popd
      ;;
    * )
      echo "removing obsolete tree"
      popd
      rm -rf mozilla
      ;;
  esac
fi
if [ ! -d mozilla ]; then
  echo "cloning new $BRANCH..."
  hg clone http://hg.mozilla.org/$BRANCH mozilla
fi
pushd mozilla
hg update --check
[ "$RELEASE_TAG" == "default" ] || hg update -r $RELEASE_TAG
# get repo and source stamp
echo -n "REV=" > ../source-stamp.txt
hg -R . parent --template="{node|short}\n" >> ../source-stamp.txt
echo -n "REPO=" >> ../source-stamp.txt
hg showconfig paths.default 2>/dev/null | head -n1 | sed -e "s/^ssh:/http:/" >> ../source-stamp.txt
popd

# use parallel compression, if available
compression='-J'
pixz -h > /dev/null 2>&1
if (($? != 127)); then
  compression='-Ipixz'
fi

echo "creating archive..."
tar $compression -cf firefox-$VERSION-source.tar.xz --exclude=.hgtags --exclude=.hgignore --exclude=.hg --exclude=CVS mozilla

# l10n
echo "fetching locales..."
test ! -d l10n && mkdir l10n
jq -r 'to_entries[]| "\(.key) \(.value|.revision)"' mozilla/browser/locales/l10n-changesets.json | \
  while read locale changeset ; do
    case $locale in
      ja-JP-mac|en-US)
        ;;
      *)
        echo "reading changeset information for $locale"
        echo "fetching $locale changeset $changeset ..."
        hg clone http://hg.mozilla.org/l10n-central/$locale l10n/$locale
        [ "$RELEASE_TAG" == "default" ] || hg -R l10n/$locale up -C -r $changeset
        ;;
    esac
  done
echo "creating l10n archive..."
tar $compression -cf l10n-$VERSION.tar.xz --exclude=.hgtags --exclude=.hgignore --exclude=.hg l10n

# compare-locales
echo "creating compare-locales"
hg clone http://hg.mozilla.org/build/compare-locales
tar $compression -cf compare-locales.tar.xz --exclude=.hgtags --exclude=.hgignore --exclude=.hg compare-locales