PHAR prefix diff workflow #11

	# https://help.github.com/en/categories/automating-your-workflow-with-github-actions

	name: "PHAR Prefix Diff"

	on:
	pull_request:
	paths:
	- 'compiler/**'
	- '.github/workflows/phar-prefix-diff.yml'
	- '.github/scripts/**'

	concurrency:
	group: phar-prefix-diff-${{ github.head_ref \|\| github.run_id }} # will be canceled on subsequent pushes in pull requests but not branches
	cancel-in-progress: true

	jobs:
	phar-prefix-diff:
	name: "PHAR Prefix Diff"

	runs-on: "ubuntu-latest"
	timeout-minutes: 60

	steps:
	- uses: actions/checkout@v4

	- name: Get base commit SHA
	id: base
	run: echo "base_sha=${{ github.event.pull_request.base.sha }}" >> "$GITHUB_OUTPUT"

	- name: Set up Node.js
	uses: actions/setup-node@v4
	with:
	node-version: 20

	- name: Install dependencies
	working-directory: .github/scripts
	run: npm ci

	- name: "Compile TS scripts"
	working-directory: .github/scripts
	run: npx tsc

	- name: Find phar-file-checksum from base commit
	id: find-artifact
	uses: actions/github-script@v7
	env:
	BASE_SHA: ${{ steps.base.outputs.base_sha }}
	ARTIFACT_NAME: phar-file-checksum
	WORKFLOW_NAME: Compile PHAR
	with:
	script: \|
	const script = require('./.github/scripts/dist/find-artifact.js');
	await script({github, context, core})

	- name: Download artifact by ID
	uses: actions/download-artifact@v4
	with:
	artifact-ids: ${{ steps.find-artifact.outputs.artifact_id }}
	run-id: ${{ steps.find-artifact.outputs.run_id }}
	github-token: ${{ secrets.GITHUB_TOKEN }}
	path: ./phar-file-checksum-old.phar

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