Create Auto-Versioning Github Action #3

	name: Auto-Version new contributions to Flyway Community DB Support
	on:
	pull_request:
	branches:
	- main
	types:
	- closed
	jobs:
	auto-version:
	if: github.event.pull_request.merged == true
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Flyway Community DB Support
	uses: actions/checkout@v4
	with:
	ref: main
	fetch-tags: true
	- name: Set up JDK 17
	uses: actions/setup-java@v4
	with:
	java-version: 17
	distribution: 'temurin'
	cache: 'maven'
	- name: Check for new module
	id: check_module
	run: \|
	git fetch --tags -q
	LATEST_TAG=$(git describe --tags `git rev-list --tags --max-count=1`)
	if git diff --diff-filter=ADR --name-only $LATEST_TAG..HEAD -- '*pom.xml' \| grep -q pom.xml; then
	echo "NEW_MODULE=true" >> $GITHUB_OUTPUT
	else
	echo "NEW_MODULE=false" >> $GITHUB_OUTPUT
	fi
	- name: Update version
	id: update_version
	run: \|
	if ${{ steps.check_module.outputs.NEW_MODULE }}; then
	NEW_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout \| awk -F'[.-]' '{print $1"."$2+1".0"}')
	else
	NEW_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout \| awk -F'[.-]' '{print $1"."$2"."$3+1}')
	fi
	mvn versions:set -DnewVersion=$NEW_VERSION
	echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_OUTPUT
	- name: Commit and tag
	uses: EndBug/add-and-commit@v9
	with:
	author_name: rg-buildmonkey
	author_email: github-buildmonkey@red-gate.com
	message: 'Bump Flyway Community DB Support to ${{ steps.update_version.outputs.NEW_VERSION }}'
	tag: '${{ steps.update_version.outputs.NEW_VERSION }}'

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