Merge pull request #95 from underworldcode/bugfix/vep-barrier-and-is-… #27

	name: "GHCR: Command-Line Container"

	# Builds the Underworld3 command-line Docker image and pushes to GHCR.
	# Uses container/Containerfile (micromamba-based image for local use).
	#
	# This is separate from binder-image.yml which builds Binder-ready images
	# optimized for mybinder.org.

	on:
	push:
	branches: [main, development]
	paths:
	# Only rebuild when these files change
	- 'container/Containerfile'
	- 'environment.yaml'
	- 'src/*/.pyx'
	- 'src/*/.c'
	- 'setup.py'
	- 'pyproject.toml'
	workflow_dispatch:
	inputs:
	force_rebuild:
	description: 'Force full rebuild (no cache)'
	type: boolean
	default: false

	jobs:
	build-and-push:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

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

	- name: Extract branch name
	run: echo "BRANCH=${GITHUB_REF##*/}" >> $GITHUB_ENV

	- name: Login to GHCR
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Build and push Docker image
	uses: docker/build-push-action@v6
	with:
	context: .
	push: true
	file: container/Containerfile
	platforms: linux/amd64
	no-cache: ${{ inputs.force_rebuild \|\| false }}
	tags: \|
	ghcr.io/underworldcode/underworld3:${{ env.BRANCH }}
	ghcr.io/underworldcode/underworld3:latest

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