Publish source #388

	# This workflow takes care of building and publishing the source code of the Danish Public Libraries CMS.
	name: Publish source
	on:
	create
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@master
	with:
	fetch-depth: 0
	# Validate the format of the tag. We only want to react on a precise pattern.
	- name: Detect release tag
	id: detect_tag
	run: \|
	if [[ "${{ github.ref }}" =~ ^refs/tags/[0-9]+\.[0-9]+\.[0-9]+$ ]]
	then
	echo ::set-output name=IS_RELEASE_TAG::true
	else
	echo ::set-output name=IS_RELEASE_TAG::false
	fi
	# Extract version from tag.
	- name: Get version
	id: get_version
	run: \|
	echo ::set-output name=RELEASE_TAG::$(echo ${GITHUB_REF#refs/tags/} \| cut -d '_' -f 2)
	if: ${{ steps.detect_tag.outputs.IS_RELEASE_TAG == 'true' }}
	# Install go-task since we need it for building the source package.
	- name: Install go-task
	uses: arduino/setup-task@v1
	if: ${{ steps.detect_tag.outputs.IS_RELEASE_TAG == 'true' }}
	- name: Build and publish source
	run: task source:deploy
	if: ${{ steps.detect_tag.outputs.IS_RELEASE_TAG == 'true' }}
	env:
	CR_PAT: ${{ secrets.GITHUB_TOKEN }}
	RELEASE_TAG: ${{ steps.get_version.outputs.RELEASE_TAG }}

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