Function getInstallationInfo

packages/cli/src/utils/installationInfo.ts:33–196

(
  projectRoot: string,
  isAutoUpdateDisabled: boolean,
)

}

export async function getInstallationInfo(
  projectRoot: string,
  isAutoUpdateDisabled: boolean,
): Promise<InstallationInfo> {
  const cliPath = process.argv[1];
  if (!cliPath) {
    return { packageManager: PackageManager.UNKNOWN, isGlobal: false };
  }

  try {
    // Normalize path separators to forward slashes for consistent matching.
    const realPath = fs.realpathSync(cliPath).replace(/\\/g, '/');
    const normalizedProjectRoot = projectRoot?.replace(/\\/g, '/');
    const isGit = isGitRepository(process.cwd());

    // Check for local git clone first
    if (
      isGit &&
      normalizedProjectRoot &&
      realPath.startsWith(normalizedProjectRoot) &&
      !realPath.includes('/node_modules/')
    ) {
      return {
        packageManager: PackageManager.UNKNOWN, // Not managed by a package manager in this sense
        isGlobal: false,
        updateMessage:
          'Running from a local git clone. Please update with "git pull".',
      };
    }

    // Check for npx/pnpx
    if (realPath.includes('/.npm/_npx') || realPath.includes('/npm/_npx')) {
      return {
        packageManager: PackageManager.NPX,
        isGlobal: false,
        updateMessage: 'Running via npx, update not applicable.',
      };
    }
    if (realPath.includes('/.pnpm/_pnpx')) {
      return {
        packageManager: PackageManager.PNPX,
        isGlobal: false,
        updateMessage: 'Running via pnpx, update not applicable.',
      };
    }

    // Check for Homebrew - try both old and new package names
    if (process.platform === 'darwin') {
      try {
        // Check for anus package first
        childProcess.execSync('brew list -1 | grep -q "^anus$"', {
          stdio: 'ignore',
        });
        return {
          packageManager: PackageManager.HOMEBREW,
          isGlobal: true,
          updateMessage:
            'Installed via Homebrew. Please update with "brew upgrade".',