#!/bin/bash

################################################################################
# Copyright (c) 2015-2018 Skymind, Inc.
#
# This program and the accompanying materials are made available under the
# terms of the Apache License, Version 2.0 which is available at
# https://www.apache.org/licenses/LICENSE-2.0.
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
# SPDX-License-Identifier: Apache-2.0
################################################################################

set -eu

if [[ $# < 2 ]]; then
    echo "Usage: bash perform-release.sh release_version snapshot_version [staging_repository]"
    exit 1
fi

RELEASE_VERSION=$1
SNAPSHOT_VERSION=$2
STAGING_REPOSITORY=${3:-}
SKIP_BUILD=${SKIP_BUILD:-1}
RELEASE_PROFILE=${RELEASE_PROFILE:-sonatype}

if [[ "$2" != *-SNAPSHOT ]]
then
    echo "Error: Version $SNAPSHOT_VERSION should finish with -SNAPSHOT"
    exit 1
fi

echo "Releasing version $RELEASE_VERSION ($SNAPSHOT_VERSION) to repository $RELEASE_PROFILE $STAGING_REPOSITORY"
echo "========================================================================================================="

if [[ ! -z $(git tag -l "deeplearning4j-$RELEASE_VERSION") ]]; then
    echo "Error: Version $RELEASE_VERSION has already been released!"
    exit 1
fi

sed -i "s/<nd4j.version>.*<\/nd4j.version>/<nd4j.version>$RELEASE_VERSION<\/nd4j.version>/" pom.xml
sed -i "s/<datavec.version>.*<\/datavec.version>/<datavec.version>$RELEASE_VERSION<\/datavec.version>/" pom.xml
sed -i "s/<dl4j.version>.*<\/dl4j.version>/<dl4j.version>$RELEASE_VERSION<\/dl4j.version>/" pom.xml
sed -i "s/<deeplearning4j.version>.*<\/deeplearning4j.version>/<deeplearning4j.version>$RELEASE_VERSION<\/deeplearning4j.version>/" pom.xml
sed -i "s/<dl4j-test-resources.version>.*<\/dl4j-test-resources.version>/<dl4j-test-resources.version>$RELEASE_VERSION<\/dl4j-test-resources.version>/" pom.xml
#Spark versions, like <version>xxx_spark_2-SNAPSHOT</version>
for f in $(find . -name 'pom.xml' -not -path '*target*'); do
    sed -i "s/version>.*_spark_.*</version>${RELEASE_VERSION}_spark_2</g" $f
done
mvn versions:set -DallowSnapshots=true -DgenerateBackupPoms=false -DnewVersion=$RELEASE_VERSION

# In its normal state, repo should contain a snapshot version stanza
sed -i "s/<version>.*-SNAPSHOT<\/version>/<version>$RELEASE_VERSION<\/version>/" pom.xml

sed -i "s/\"currentVersion\", default = \".*\"/\"currentVersion\", default = \"$RELEASE_VERSION\"/" nd4s/build.sbt
sed -i "s/\"nd4jVersion\", default = \".*\"/\"nd4jVersion\", default = \"$RELEASE_VERSION\"/" nd4s/build.sbt

if [[ "${SKIP_BUILD}" == "0" ]]; then
    echo "Performing build... (Note: Does not currently support partial builds without CUDA, etc.)"

    source change-spark-versions.sh 1
    source change-scala-versions.sh 2.10
    source change-cuda-versions.sh 8.0
    mvn clean deploy -Dgpg.executable=gpg2 -Prelease -Dlocal.software.repository=$RELEASE_PROFILE -Dmaven.test.skip -Dlibnd4j.cuda=8.0 -Denforcer.skip -DstagingRepositoryId=$STAGING_REPOSITORY

    if [[ -z ${STAGING_REPOSITORY:-} ]]; then
        # create new staging repository with everything in it
        if [[ ! $(grep stagingRepository.id target/nexus-staging/staging/*.properties) =~ ^stagingRepository.id=(.*) ]]; then
            STAGING_REPOSITORY=
        else
            STAGING_REPOSITORY=${BASH_REMATCH[1]}
        fi
    fi

    source change-scala-versions.sh 2.11
    source change-cuda-versions.sh 9.0
    mvn clean deploy -Dgpg.executable=gpg2 -Prelease -Dlocal.software.repository=$RELEASE_PROFILE -Dmaven.test.skip -Dlibnd4j.cuda=9.0 -Denforcer.skip -DstagingRepositoryId=$STAGING_REPOSITORY
    source change-spark-versions.sh 2
    source change-cuda-versions.sh 9.2
    mvn clean deploy -Dgpg.executable=gpg2 -Prelease -Dlocal.software.repository=$RELEASE_PROFILE -Dmaven.test.skip -Dlibnd4j.cuda=9.2 -Denforcer.skip -DstagingRepositoryId=$STAGING_REPOSITORY -Dspark.major.version=2

    source change-spark-versions.sh 1
    source change-scala-versions.sh 2.11
    source change-cuda-versions.sh 9.2

    # ~/.ivy2/.credentials needs to look like this:
    # realm=Sonatype Nexus Repository Manager
    # host=oss.sonatype.org
    # user=xxx
    # password=xxx
    cd nd4s
    sbt -DrepoType=$RELEASE_PROFILE -DstageRepoId=$STAGING_REPOSITORY +publishSigned
    cd ..
fi
git commit -s -a -m "Update to version $RELEASE_VERSION"
git tag -s -a -m "deeplearning4j-$RELEASE_VERSION" "deeplearning4j-$RELEASE_VERSION"
git tag -s -a -f -m "deeplearning4j-$RELEASE_VERSION" "latest_release"

sed -i "s/<nd4j.version>.*<\/nd4j.version>/<nd4j.version>$SNAPSHOT_VERSION<\/nd4j.version>/" pom.xml
sed -i "s/<datavec.version>.*<\/datavec.version>/<datavec.version>$SNAPSHOT_VERSION<\/datavec.version>/" pom.xml
sed -i "s/<dl4j.version>.*<\/dl4j.version>/<dl4j.version>$SNAPSHOT_VERSION<\/dl4j.version>/" pom.xml
sed -i "s/<deeplearning4j.version>.*<\/deeplearning4j.version>/<deeplearning4j.version>$SNAPSHOT_VERSION<\/deeplearning4j.version>/" pom.xml
sed -i "s/<dl4j-test-resources.version>.*<\/dl4j-test-resources.version>/<dl4j-test-resources.version>$SNAPSHOT_VERSION<\/dl4j-test-resources.version>/" pom.xml
#Spark versions, like <version>xxx_spark_2-SNAPSHOT</version>
SPLIT_VERSION=(${SNAPSHOT_VERSION//-/ })
for f in $(find . -name 'pom.xml' -not -path '*target*'); do
    sed -i "s/version>.*_spark_.*</version>${SPLIT_VERSION[0]}_spark_2-${SPLIT_VERSION[1]}</g" $f
done
mvn versions:set -DallowSnapshots=true -DgenerateBackupPoms=false -DnewVersion=$SNAPSHOT_VERSION

# back to a version stanza
sed -i "s/<version>$RELEASE_VERSION<\/version>/<version>$SNAPSHOT_VERSION<\/version>/" pom.xml

sed -i "s/\"currentVersion\", default = \".*\"/\"currentVersion\", default = \"$SNAPSHOT_VERSION\"/" nd4s/build.sbt
sed -i "s/\"nd4jVersion\", default = \".*\"/\"nd4jVersion\", default = \"$SNAPSHOT_VERSION\"/" nd4s/build.sbt
git commit -s -a -m "Update to version $SNAPSHOT_VERSION"

echo "Successfully performed release of version $RELEASE_VERSION ($SNAPSHOT_VERSION) to repository $RELEASE_PROFILE $STAGING_REPOSITORY"