#!/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="esr60"

BRANCH="releases/mozilla-$CHANNEL"

VERSION_SUFFIX="esr"

LOCALE_FILE="firefox-$VERSION/browser/locales/l10n-changesets.json"

# 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 )

# use parallel compression, if available

compression='-J'

pixz -h > /dev/null 2>&1

if (($? != 127)); then

  compression='-Ipixz'

fi

# we might have an upstream archive already and can skip the checkout

if [ -e firefox-$VERSION$VERSION_SUFFIX.source.tar.xz ]; then

  echo "skip firefox checkout and use available archive"

  # still need to extract the locale information from the archive

  echo "extract locale changesets"

  tar -xf firefox-$VERSION$VERSION_SUFFIX.source.tar.xz $LOCALE_FILE

else

  # mozilla

  if [ -d firefox-$VERSION ]; then

    pushd firefox-$VERSION

    _repourl=$(hg paths)

    case "$_repourl" in

      *$BRANCH*)

        echo "updating previous tree"

        hg pull

        popd

        ;;

      * )

        echo "removing obsolete tree"

        popd

        rm -rf firefox-$VERSION

        ;;

    esac

  fi

  if [ ! -d firefox-$VERSION ]; then

    echo "cloning new $BRANCH..."

    hg clone http://hg.mozilla.org/$BRANCH firefox-$VERSION

  fi

  pushd firefox-$VERSION

  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

  echo "creating archive..."

  tar $compression -cf firefox-$VERSION$VERSION_SUFFIX.source.tar.xz --exclude=.hgtags --exclude=.hgignore --exclude=.hg --exclude=CVS firefox-$VERSION

fi

# l10n

echo "fetching locales..."

test ! -d l10n && mkdir l10n

jq -r 'to_entries[]| "\(.key) \(.value|.revision)"' $LOCALE_FILE | \

  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$VERSION_SUFFIX.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