Function detectPackageManager

packages/bumpy/src/utils/package-manager.ts:23–45

(rootDir: string)

}

export async function detectPackageManager(rootDir: string): Promise<PackageManager> {
  // Check lockfiles in priority order
  if ((await exists(resolve(rootDir, 'bun.lock'))) || (await exists(resolve(rootDir, 'bun.lockb')))) {
    return 'bun';
  }
  if (await exists(resolve(rootDir, 'pnpm-lock.yaml'))) {
    return 'pnpm';
  }
  if (await exists(resolve(rootDir, 'yarn.lock'))) {
    return 'yarn';
  }
  // Fallback: check packageManager field in package.json
  try {
    const pkg = await readJson<Record<string, unknown>>(resolve(rootDir, 'package.json'));
    if (typeof pkg.packageManager === 'string') {
      const name = pkg.packageManager.split('@')[0];
      if (name === 'pnpm' || name === 'yarn' || name === 'bun') return name;
    }
  } catch {
    // ignore
  }
  return 'npm';
}

async function getWorkspaceGlobs(rootDir: string, pm: PackageManager): Promise<string[]> {
  // pnpm uses pnpm-workspace.yaml