Function validateDirectory

src/directory.ts:840–872

(projectRoot: string)

 * Check if the .codegraph directory has valid structure
 */
export function validateDirectory(projectRoot: string): {
  valid: boolean;
  errors: string[];
} {
  const errors: string[] = [];
  const codegraphDir = getCodeGraphDir(projectRoot);

  if (!fs.existsSync(codegraphDir)) {
    errors.push('CodeGraph directory does not exist');
    return { valid: false, errors };
  }

  if (!fs.statSync(codegraphDir).isDirectory()) {
    errors.push('.codegraph exists but is not a directory');
    return { valid: false, errors };
  }

  // Auto-repair / upgrade .gitignore (non-critical file). A missing one is
  // recreated; a stale pre-wildcard default that never ignored daemon.pid is
  // regenerated in place (issue #788); a user-authored file is left alone.
  const gitignorePath = path.join(codegraphDir, '.gitignore');
  const existedBefore = fs.existsSync(gitignorePath);
  if (!ensureGitignore(gitignorePath) && !existedBefore) {
    // Only a missing-and-uncreatable file is surfaced; a failed in-place
    // upgrade of an existing file is non-fatal — the index still works.
    errors.push('.gitignore missing in .codegraph directory and could not be created');
  }

  return {
    valid: errors.length === 0,
    errors,
  };
}