Function getLocalDefaultBranch

packages/backend/src/git.ts:406–425

({
    path,
}: {
    path: string,
})

 * @returns The branch name (e.g., "main", "master") or undefined if HEAD is not a symbolic ref
 */
export const getLocalDefaultBranch = async ({
    path,
}: {
    path: string,
}) => {
    const git = createGitClientForPath(path);

    try {
        const ref = await git.raw(['symbolic-ref', 'HEAD']);
        // Returns something like "refs/heads/main\n", so trim and remove prefix
        const trimmed = ref.trim();
        const match = trimmed.match(/^refs\/heads\/(.+)$/);
        if (match) {
            return match[1];
        }
    } catch (error: unknown) {
        console.error(`Failed to get local default branch for repository: ${path}`);
        return undefined;
    }
}

/**
 * Gets the timestamp of the most recent commit across all branches.