Make changes required for Desktop FS updates #63

	# fly-deploy will be triggered on completion of this workflow to actually deploy the code to fly.io.

	name: fly.io Build
	on:
	pull_request:
	branches: [ main ]
	types: [labeled, opened, synchronize, reopened]

	# Allows running this workflow manually from the Actions tab
	workflow_dispatch:

	jobs:
	build:
	name: Build Docker image
	runs-on: ubuntu-latest
	# Build when the 'preview' label is added, or when PR is updated with this label present.
	if: >
	github.event_name == 'workflow_dispatch' \|\|
	(github.event_name == 'pull_request' &&
	contains(github.event.pull_request.labels.*.name, 'preview'))
	steps:
	- uses: actions/checkout@v4
	- name: Build and export Docker image
	id: docker-build
	run: >
	docker build -t grist-core:preview . &&
	docker image save grist-core:preview -o grist-core.tar
	- name: Save PR information
	run: \|
	echo PR_NUMBER=${{ github.event.number }} >> ./pr-info.txt
	echo PR_SOURCE=${{ github.event.pull_request.head.repo.full_name }}-${{ github.event.pull_request.head.ref }} >> ./pr-info.txt
	echo PR_SHASUM=${{ github.event.pull_request.head.sha }} >> ./pr-info.txt
	# PR_SOURCE looks like <owner>/<repo>-<branch>.
	# For example, if the GitHub user "foo" forked grist-core as "grist-bar", and makes a PR from their branch named "baz",
	# it will be "foo/grist-bar-baz". deploy.js later replaces "/" with "-", making it "foo-grist-bar-baz".
	- name: Upload artifact
	uses: actions/upload-artifact@v4
	with:
	name: docker-image
	path: \|
	./grist-core.tar
	./pr-info.txt
	if-no-files-found: "error"

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