feat(ci): add PR title check workflow #27

	name: PR Title Check

	on:
	pull_request:
	types: [opened, edited, synchronize, reopened]

	permissions:
	pull-requests: write

	jobs:
	check-pr-title:
	name: Check PR Title
	runs-on: ubuntu-latest
	steps:
	- name: Check PR Title and Manage Review
	uses: actions/github-script@v6
	with:
	github-token: ${{secrets.GITHUB_TOKEN}}
	script: \|
	const title = context.payload.pull_request.title;
	const pattern = /^(feat\|fix\|build\|chore\|ci\|docs\|perf\|refactor\|revert\|style\|test):\s\w+:\s.+/;

	if (!pattern.test(title)) {
	await github.rest.pulls.createReview({
	...context.repo,
	pull_number: context.payload.pull_request.number,
	body: 'Please update the PR title to match the required format: `<type>: <area>: <subject>`\n\nTypes: fix, feat, build, chore, ci, docs, perf, refactor, revert, style, test, chore\nArea: e.g. api, chain, state, mempool, multisig, networking, paych, proving, sealing, wallet, deps\nSubject: start with lowercase',
	event: 'REQUEST_CHANGES'
	});
	core.setFailed('PR title does not match the required format');
	} else {
	const reviews = await github.rest.pulls.listReviews({
	...context.repo,
	pull_number: context.payload.pull_request.number
	});

	const botReview = reviews.data.find(review =>
	review.user.type === 'Bot' &&
	review.state === 'CHANGES_REQUESTED'
	);

	if (botReview) {
	await github.rest.pulls.dismissReview({
	...context.repo,
	pull_number: context.payload.pull_request.number,
	review_id: botReview.id,
	message: 'PR title now matches the required format.'
	});
	}
	}

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