Keep demo_output directory but ignore outputs (git + docker) #9

	name: Publish GPU Docker image (GHCR)

	on:
	workflow_dispatch:
	push:
	tags:
	- "v-*"

	permissions:
	contents: read
	packages: write

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: gene-weaver/leafmachine2

	jobs:
	build-and-push:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Free disk space (runner)
	run: \|
	set -eux
	df -h

	# Remove big preinstalled toolchains from GitHub-hosted runners
	sudo rm -rf /usr/share/dotnet \|\| true
	sudo rm -rf /usr/local/lib/android \|\| true
	sudo rm -rf /opt/ghc \|\| true
	sudo rm -rf /usr/local/share/boost \|\| true
	sudo rm -rf /usr/local/share/powershell \|\| true
	sudo rm -rf /usr/share/swift \|\| true

	# Remove apt lists and any dangling docker data from previous jobs
	sudo apt-get clean \|\| true
	sudo rm -rf /var/lib/apt/lists/* \|\| true

	# If docker is already present, prune aggressively
	docker system prune -af \|\| true

	df -h

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

	- name: Log in to GHCR
	uses: docker/login-action@v3
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract Docker metadata
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
	tags: \|
	type=ref,event=tag,prefix=gpu-
	type=raw,value=gpu-latest

	- name: Build and push GPU image
	uses: docker/build-push-action@v6
	with:
	context: .
	file: docker/Dockerfile.gpu
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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