#!/bin/bash -e

if [ "$1" == "--help" ] || [ "$1" == "" ] || [ "$2" == "" ] || [ "$3" == "" ]
then
  echo "Gerrit Code Review - release automation script"
  echo "----------------------------------------------"
  echo "Use: $0 <branch> <version> <next-version>"
  echo ""
  echo "Where: branch  Gerrit branch name where the release must be cut"
  echo "       version Gerrit semantic release number"
  echo "       next-version Next SNAPSHOT version after release"
  echo ""
  echo "Example: $0 stable-2.16 2.16.7 2.16.8-SNAPSHOT"
  exit 1
fi

export branch=$1
export version=$2
export nextversion=$3

if [ -d gerrit ]
then
  rm -Rf gerrit
fi

if [ -f $HOME/.gitconfig.template ]
then
  cp $HOME/.gitconfig.template $HOME/.gitconfig
fi

echo "Cloning and building Gerrit Code Review on branch $branch ..."
git config --global credential.helper cache
git clone https://gerrit.googlesource.com/gerrit && (cd gerrit && f=$(git rev-parse --git-dir)/hooks/commit-msg ; curl -Lo "$f" https://gerrit-review.googlesource.com/tools/hooks/commit-msg ; chmod +x "$f")

pushd gerrit

git checkout "$branch"
git fetch && git reset --hard origin/"$branch"
git submodule update --init

git clean -fdx
./tools/version.py "$version"
git commit -a -m "Set version to $version"
git push origin HEAD:refs/for/"$branch"

git tag -f -s -m "v$version" "v$version"
git submodule foreach 'if [ "$path" != "modules/jgit" ]; then git tag -f -s -m "v$version" "v$version"; fi'

bazelisk build release Documentation:searchfree
./tools/maven/api.sh install

echo -n "Checking Gerrit version ... "

warVersion=$(java -jar bazel-bin/release.war --version)

if ! [ "$warVersion" == "gerrit version $version" ]
then
  echo "Version build is $warVersion but was expecting $version"
  exit 2
fi

echo "OK"

echo "Checking Gerrit plugins version ... "
java -jar bazel-bin/release.war init --list-plugins

echo "Publishing Gerrit WAR and APIs to Maven Central ..."
export VERBOSE=1
./tools/maven/api.sh war_deploy
./tools/maven/api.sh deploy

echo "Download the artifacts from SonaType staging repository at https://oss.sonatype.org"
echo "logging in using your credentials"

popd

cp -f gerrit/bazel-bin/Documentation/searchfree.zip .
cp -f gerrit/bazel-bin/release.war gerrit-"$version".war

echo "gerrit.war checksums"
shasum gerrit-"$version".war
shasum -a 256 gerrit-"$version".war
md5sum gerrit-"$version".war

echo "Pushing to Google Cloud Buckets"
gcloud auth login

echo "Pushing gerrit.war to gerrit-releases ..."
gsutil cp gerrit-"$version".war gs://gerrit-releases/gerrit-"$version".war

echo "Pushing gerrit documentation to gerrit-documentation ..."
unzip searchfree.zip
pushd Documentation
version_no_rc=$(echo "$version" | cut -d '-' -f 1)
gsutil cp -r . gs://gerrit-documentation/Documentation/"$version_no_rc"
popd

echo "Setting next version tag to $nextversion ..."
pushd gerrit
git clean -fdx
./tools/version.py "$nextversion"
git commit -a -m "Set version to $nextversion"
git push origin HEAD:refs/for/"$branch"
popd

echo "Release completed"