Function tryPath

src/python/pythonUtils.ts:199–224

(path: string)

 * @returns The validated path if successful, or null if invalid.
 */
export async function tryPath(path: string): Promise<string | null> {
  let timeoutId: NodeJS.Timeout | undefined;

  try {
    const timeoutPromise = new Promise<never>((_, reject) => {
      timeoutId = setTimeout(() => reject(new Error('Command timed out')), 2500);
    });

    const result = await Promise.race([execFileAsync(path, ['--version']), timeoutPromise]);

    if (timeoutId) {
      clearTimeout(timeoutId);
    }

    const versionOutput = (result as { stdout: string }).stdout.trim();
    if (versionOutput.startsWith('Python')) {
      return path;
    }
    return null;
  } catch {
    if (timeoutId) {
      clearTimeout(timeoutId);
    }
    return null;
  }
}

/**
 * Validates and caches the Python executable path.