Avoid removing whitespace for walrus operators within subscripts (#3823) #710

	name: docker

	on:
	push:
	branches:
	- "main"
	release:
	types: [published]

	permissions:
	contents: read

	jobs:
	docker:
	if: github.repository == 'psf/black'
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v2

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2

	- name: Login to DockerHub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Check + set version tag
	run:
	echo "GIT_TAG=$(git describe --candidates=0 --tags 2> /dev/null \|\| echo
	latest_non_release)" >> $GITHUB_ENV

	- name: Build and push
	uses: docker/build-push-action@v4
	with:
	context: .
	platforms: linux/amd64,linux/arm64
	push: true
	tags: pyfound/black:latest,pyfound/black:${{ env.GIT_TAG }}

	- name: Build and push latest_release tag
	if:
	${{ github.event_name == 'release' && github.event.action == 'published' &&
	!github.event.release.prerelease }}
	uses: docker/build-push-action@v4
	with:
	context: .
	platforms: linux/amd64,linux/arm64
	push: true
	tags: pyfound/black:latest_release

	- name: Build and push latest_prerelease tag
	if:
	${{ github.event_name == 'release' && github.event.action == 'published' &&
	github.event.release.prerelease }}
	uses: docker/build-push-action@v4
	with:
	context: .
	platforms: linux/amd64,linux/arm64
	push: true
	tags: pyfound/black:latest_prerelease

	- name: Image digest
	run: echo ${{ steps.docker_build.outputs.digest }}

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