ci/github-script/labels: close empty PRs (#453060) (32d40770) · Commits · nix / nixpkgs

ci/github-script/labels.js

+40 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,46 @@ module.exports = async ({ github, context, core, dry }) => {
		})
		).data

		// When the same change has already been merged to the target branch, a PR will still be
		// open and display the same changes - but will not actually have any effect. This causes
		// strange CI behavior, because the diff of the merge-commit is empty, no rebuilds will
		// be detected, no maintainers pinged.
		// We can just check the temporary merge commit, and if it's empty the PR can safely be
		// closed - there are no further changes.
		if (pull_request.merge_commit_sha) {
		const commit = (
		await github.rest.repos.getCommit({
		...context.repo,
		ref: pull_request.merge_commit_sha,
		})
		).data

		if (commit.files.length === 0) {
		const body = [
		`The diff for the temporary merge commit ${pull_request.merge_commit_sha} is empty.`,
		'The changes in this PR have almost certainly already been merged to the target branch.',
		].join('\n')

		core.info(`PR #${item.number}: closed`)

		if (!dry) {
		await github.rest.issues.createComment({
		...context.repo,
		issue_number: pull_number,
		body,
		})

		await github.rest.pulls.update({
		...context.repo,
		pull_number,
		state: 'closed',
		})
		}

		return {}
		}
		}

		const reviews = await github.paginate(github.rest.pulls.listReviews, {
		...context.repo,
		pull_number,