Mars CD for DockerHub #250

	name: Mars CD for DockerHub

	on:
	schedule:
	- cron: '0 18 * * *'
	push:
	tags:
	- '*'

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Check out code
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Log in to Docker Hub
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_PASSWORD }}

	- name: Build and push Docker image
	shell: bash
	env:
	DOCKER_ORG: ${{ secrets.DOCKERHUB_USERNAME }}
	if: ${{ github.repository == 'mars-project/mars' }}
	run: \|
	source ./ci/reload-env.sh

	if [[ -n "$GIT_TAG" ]]; then
	BRANCHES="$GIT_TAG"
	echo "Will handle tag $BRANCHES"
	else
	MAINBRANCH=$(git rev-parse --abbrev-ref HEAD)
	BRANCHES=$(git branch -r --list 'origin/v' \| sed 's/ origin\///g')
	BRANCHES="$MAINBRANCH $BRANCHES"

	echo "Will handle branches:"
	for branch in $BRANCHES; do
	echo " $branch"
	done
	fi

	if [[ "$DOCKER_ORG" == "marsuploader" ]]; then
	export DOCKER_ORG="marsproject"
	fi

	for branch in $BRANCHES; do
	if [[ -n "$GIT_TAG" ]]; then
	export IMAGE_TAG="$GIT_TAG"
	else
	echo ""
	git checkout $branch
	git log --pretty=format:"%h - %an, %cd : %s" --since=25.hours

	# consider schedule delay of Github Actions, some margin needed.
	if [[ ! "$(git log --since=25.hours)" ]]; then
	echo "No recent commits on branch $branch found, will skip building image."
	continue
	fi

	export IMAGE_TAG="nightly-$branch"
	fi
	bash bin/kube-image-tool.sh -o "$DOCKER_ORG" -t "$IMAGE_TAG" build
	docker push "$DOCKER_ORG/mars:$IMAGE_TAG"
	done

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