tag (release) flow #300

	name: tag (release) flow

	on:
	create:
	tags:
	- '*'

	jobs:
	gradle-java11:
	name: Java 11 release
	runs-on: ubuntu-latest
	steps:
	- name: checkout code
	uses: actions/checkout@v2
	with:
	# bring in all history because the gradle versions plugin needs to "walk back" to the closest ancestor tag
	# to figure out what version this is. optimizing this is left as a challenge to future committers
	fetch-depth: 0
	- name: Set up JDK 11
	uses: actions/setup-java@v1
	with:
	java-version: 11
	- name: Build with Gradle
	# add --info or --debug below for more details when trying to understand issues
	run: ./gradlew clean build javadoc --stacktrace --warning-mode all --no-daemon --parallel
	- name: Branch tag
	id: branch_tag
	run: echo ::set-output name=RELEASE_TAG::${GITHUB_REF#refs/tags/}
	- name: Publish to Jfrog
	env:
	JFROG_USER: ${{ secrets.JFROG_USER }}
	JFROG_KEY: ${{ secrets.JFROG_KEY }}
	# retain compatibility with the travis build (for now?)
	TRAVIS_TAG: ${{ steps.branch_tag.outputs.RELEASE_TAG }}
	run: ./scripts/publishToJfrog.sh

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