Function useCommitTitle

source/features/pr-first-commit-title.tsx:21–51

(firstCommitTitle: HTMLElement)

}

function useCommitTitle(firstCommitTitle: HTMLElement): void {
	const requestedContent = new URL(location.href).searchParams;
	const commitCount = $([
		// Few commits
		'div.Box:is(.tmp-mb-3, .mb-3) .octicon-git-commit + span',
		// Many commits (rendered in tabs)
		'a[href="#commits_bucket"] .Counter',
	]);
	if (looseParseInt(commitCount) < 2 || !elementExists('#new_pull_request')) {
		return;
	}

	const firstCommit = getFirstCommit(firstCommitTitle);

	if (!requestedContent.has('pull_request[title]')) {
		setFieldText(
			$([
				'input[name="pull_request[title]"]',
				'#pull_request_title', // Remove after August 2026
			]),
			firstCommit.title,
		);
	}

	if (firstCommit.body && !requestedContent.has('pull_request[body]')) {
		insertTextIntoField(
			$('#pull_request_body'),
			firstCommit.body,
		);
	}
}

function init(signal: AbortSignal): void {
	observe('#commits_bucket > :first-child .js-commits-list-item:first-child p', useCommitTitle, {signal});