Build bespoke PyGEM Docker container #64

	name: 'Build bespoke PyGEM Docker container'

	on:
	# Trigger when these files change in an open PR
	pull_request:
	paths:
	- '.github/workflows/docker_pygem.yml'
	- 'docker/Dockerfile'

	# Trigger when these files change on the master or dev branches
	push:
	branches:
	- master
	- dev
	paths:
	- '.github/workflows/docker_pygem.yml'
	- 'docker/Dockerfile'

	# Trigger every Saturday at 12AM GMT
	schedule:
	- cron: '0 0 * * 6'

	# Manually trigger the workflow
	workflow_dispatch:

	# Stop the workflow if a new one is started
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	permissions:
	contents: read
	packages: write

	jobs:
	docker:
	name: 'Build and push Docker container'
	runs-on: ubuntu-latest

	steps:
	- name: 'Check out the repo'
	uses: actions/checkout@v4

	- name: 'Set up Docker buildx'
	uses: docker/setup-buildx-action@v3

	- name: 'Log into GitHub Container Repository'
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	logout: true

	- name: 'Build and Push Docker Container'
	uses: docker/build-push-action@v5
	with:
	push: ${{ github.ref == 'refs/heads/master' \|\| github.ref == 'refs/heads/dev' }}
	no-cache: true
	file: 'docker/Dockerfile'
	build-args: \|
	PYGEM_BRANCH=${{ github.ref == 'refs/heads/master' && 'master' \|\| 'dev' }}
	tags: \|
	ghcr.io/pygem-community/pygem:${{ github.ref == 'refs/heads/master' && 'latest' \|\| github.ref == 'refs/heads/dev' && 'dev' }}

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