#!/bin/bash

# This script creates a submodule project with all the necessary repositories (forked) and changes needed to test

# GraalVM updates with handwritten libraries (including, pubsub, bigquery, bigtable and spanner-jdbc).

# It serves two main purposes; first, it allows for the creation of a testing environment that can be shared with

# teammates and second, given that the submodule leverages creation of test branches in the (forked) repositories,

# any extra configurations necessary for making the library compatible with GraalVM can easily be sent for review as a PR

# from the branch itself.

# At a high-level, the script will do the following:

# - Modifies graal-sdk version in gapic-generator-java/gax

# - Modifies the gapic-generator-bom version in java-shared-dependencies.

# - Updates the version of native-maven-plugin in java-shared-config.

# - Updates the java-shared-config and java-shared-dependencies versions in the handwritten libraries listed.

# - Adds gapic-generator-java, java-shared-config and handwritten libraries listed previously

# with the associated changes, to the submodule project.

set -eo pipefail

function modify_shared_config() {

xmllint --shell pom.xml <<EOF

setns x=http://maven.apache.org/POM/4.0.0

cd .//x:artifactId[text()="google-cloud-shared-config"]

cd ../x:version

set ${SHARED_CONFIG_VERSION}

save pom.xml

EOF

}

function modify_shared_dependencies() {

xmllint --shell pom.xml <<EOF

setns x=http://maven.apache.org/POM/4.0.0

cd .//x:artifactId[text()="google-cloud-shared-dependencies"]

cd ../x:version

set ${SHARED_DEPS_VERSION}

save pom.xml

EOF

}

if [ -z "$GRAALVM_VERSION" ]; then

echo "Please specify the GRAALVM_VERSION."

exit 1

fi

if [ -z "$NATIVE_MAVEN_PLUGIN" ]; then

echo "Please specify the NATIVE_MAVEN_PLUGIN version you want to update to."

exit 1

fi

if [ -z "$ORGANIZATION" ]; then

echo "Please specify the ORGANIZATION where your updates need to be stored."

exit 1

fi

# This script assumes that you've already created a new github repository.

if [ ! -d ".git" ]; then

echo "Missing '.git' file. Please make sure that you are running this script from a new github repository."

exit 1

fi

GRAALVM_BRANCH="${GRAALVM_VERSION}_update"

## Round 1: Add gapic-generator-java and update graal-sdk version in GAX.

if [ ! -d "gapic-generator-java" ]; then

echo "Create gapic-generator-java submodule if one does not exist"

git submodule add --force https://github.com/"${ORGANIZATION}"/gapic-generator-java.git

fi

# Modify graal-sdk version in GAX

pushd gapic-generator-java/gax-java

xmllint --shell pom.xml <<EOF

setns x=http://maven.apache.org/POM/4.0.0

cd .//x:artifactId[text()="graal-sdk"]

cd ../x:version

set ${GRAALVM_VERSION}

save pom.xml

EOF

# Get java-shared-dependencies version

popd

pushd gapic-generator-java

SHARED_DEPS_VERSION=$(sed -e 's/xmlns=".*"//' java-shared-dependencies/pom.xml | xmllint --xpath '/project/version/text()' -)

echo $SHARED_DEPS_VERSION

if [ ! "$(git branch --list "$GRAALVM_BRANCH")" ]

then

git diff

git checkout -b "${GRAALVM_BRANCH}"

git add gax-java/pom.xml

git commit -m "chore: update graalvm-sdk's version (${GRAALVM_VERSION}) in GAX for testing"

git push origin "${GRAALVM_BRANCH}"

fi

popd

## Round 2: Add java-shared-config if not present and update native-maven-plugin's version

if [ ! -d "java-shared-config" ]; then

echo "Create java-shared-config submodule if one does not exist"

git submodule add --force https://github.com/"${ORGANIZATION}"/java-shared-config.git

fi

# Modify junit-platform-native and native-maven-plugin

pushd java-shared-config

SHARED_CONFIG_VERSION=$(sed -e 's/xmlns=".*"//' pom.xml | xmllint --xpath '/project/version/text()' -)

xmllint --shell pom.xml <<EOF

setns x=http://maven.apache.org/POM/4.0.0

cd .//x:artifactId[text()="native-maven-plugin"]

cd ../x:version

set ${NATIVE_MAVEN_PLUGIN}

save pom.xml

EOF

echo "Modified native-maven-plugin in shared-config"

git diff

# Create branch on github

if [ ! "$(git branch --list "$GRAALVM_BRANCH")" ]

then

git checkout -b "${GRAALVM_BRANCH}"

git add pom.xml

git commit -m "chore: update native-maven-plugin's version (${NATIVE_MAVEN_PLUGIN}) in java-shared-config for testing"

git push origin "${GRAALVM_BRANCH}"

fi

popd

## Round 3: Add java-pubsub if not present and update versions of shared-dependencies and java-shared-config.

if [ ! -d "java-pubsub" ]; then

echo "Create java-pubsub submodule if one does not exist"

git submodule add --force https://github.com/"${ORGANIZATION}"/java-pubsub.git

fi

# Update shared-config and shared-dependencies version

pushd java-pubsub

modify_shared_config

modify_shared_dependencies

echo "Modified shared-config and shared-dependencies versions in java-pubsub"

git diff

if [ ! "$(git branch --list "$GRAALVM_BRANCH")" ]

then

git checkout -b "${GRAALVM_BRANCH}"

git add pom.xml

git commit -m "chore: update shared-config (${SHARED_CONFIG_VERSION}) shared-dependencies version (${SHARED_DEPS_VERSION}) for testing"

git push origin "${GRAALVM_BRANCH}"

fi

popd

## Round 4: Add java-bigquery if not present and update versions of shared-dependencies and java-shared-config.

if [ ! -d "java-bigquery" ]; then

echo "Create java-bigquery submodule if one does not exist"

git submodule add --force https://github.com/"${ORGANIZATION}"/java-bigquery.git

fi

# Update shared-config and shared-dependencies version

pushd java-bigquery

modify_shared_config

modify_shared_dependencies

echo "Modified shared-config and shared-dependencies versions in java-bigquery"

git diff

if [ ! "$(git branch --list "$GRAALVM_BRANCH")" ]

then

git checkout -b "${GRAALVM_BRANCH}"

git add pom.xml

git commit -m "chore: update shared-config (${SHARED_CONFIG_VERSION}) shared-dependencies version (${SHARED_DEPS_VERSION}) for testing"

git push origin "${GRAALVM_BRANCH}"

fi

popd

## Round 5: Add java-bigtable if not present and update versions of shared-dependencies and java-shared-config.

if [ ! -d "java-bigtable" ]; then

echo "Create java-bigtable submodule if one does not exist"

git submodule add --force https://github.com/"${ORGANIZATION}"/java-bigtable.git

fi

# Update shared-config and shared-dependencies version

pushd java-bigtable/google-cloud-bigtable-deps-bom

modify_shared_config

modify_shared_dependencies

popd

pushd java-bigtable/google-cloud-bigtable-bom

modify_shared_config

popd

pushd java-bigtable

modify_shared_config

echo "Modified shared-config and shared-dependencies versions in java-bigtable"

git diff

if [ ! "$(git branch --list "$GRAALVM_BRANCH")" ]

then

git checkout -b "${GRAALVM_BRANCH}"

git add pom.xml

git add google-cloud-bigtable-deps-bom/pom.xml

git add google-cloud-bigtable-bom/pom.xml

git commit -m "chore: update shared-config (${SHARED_CONFIG_VERSION}) shared-dependencies version (${SHARED_DEPS_VERSION}) for testing"

git push origin "${GRAALVM_BRANCH}"

fi

popd

## Round 6: Add java-spanner-jdbc if not present and update versions of shared-dependencies and java-shared-config.

if [ ! -d "java-spanner-jdbc" ]; then

echo "Create java-spanner-jdbc submodule if one does not exist"

git submodule add --force https://github.com/"${ORGANIZATION}"/java-spanner-jdbc.git

fi

# Update shared-config and shared-dependencies version

pushd java-spanner-jdbc

modify_shared_config

modify_shared_dependencies

echo "Modified shared-config and shared-dependencies versions in java-spanner-jdbc"

git diff

if [ ! "$(git branch --list "$GRAALVM_BRANCH")" ]

then

git checkout -b "${GRAALVM_BRANCH}"

git add pom.xml

git commit -m "chore: update shared config (${SHARED_CONFIG_VERSION}) shared-dependencies version (${SHARED_DEPS_VERSION}) for testing"

git push origin "${GRAALVM_BRANCH}"

fi

popd

## Round 7: Push modified repos to submodule repository.

git add gapic-generator-java

git add java-shared-config

git add java-pubsub

git add java-bigquery

git add java-bigtable

git add java-spanner-jdbc

git commit -m "chore: populate the submodule project" --allow-empty

git push origin main