make dataset format metadata optional (ldes) #76

	name: Docker Images Build & Push to ghrc.io

	on:
	push:
	branches: ["main"]
	tags: ["v..*"]
	pull_request:
	branches: ["main"]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout the codebase
	uses: actions/checkout@v3

	- name: Login to GitHub Container Registry
	uses: docker/login-action@v1
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Build the Docker images and Push them to the registry-namespace indicated in REG_NS
	run: \|
	touch .env # make sure we have one to satisfy the build
	export REG_NS="ghcr.io/vlizbe/vocabserver-app" # sets the public scope for these, no uppercases are allowed
	TAG_NAME=${GITHUB_REF#refs/tags/} # this is the tag name of the release
	echo $TAG_NAME # this is the tag name of the release
	# build tag is the same as tag name for releases if this matches the semver format else it is latest
	# The string you want to check
	# The regular expression
	regex="^(0\|[1-9][0-9])\\.(0\|[1-9][0-9])\\.(0\|[1-9][0-9])(-((0\|[1-9][0-9]\|[0-9][a-zA-Z-][0-9a-zA-Z-])(\\.(0\|[1-9][0-9]\|[0-9][a-zA-Z-][0-9a-zA-Z-]))))?(\\+([0-9a-zA-Z-]+(\\.[0-9a-zA-Z-]+)*))?$"
	if [[ $TAG_NAME =~ $regex ]]; then
	export BUILD_TAG=$TAG_NAME
	else
	export BUILD_TAG="latest"
	fi
	echo $BUILD_TAG

	make docker-push

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