Method recreate

src/index.ts:346–376

* Rebuild the project's database from scratch and return a fresh, empty * instance — the "same result as a fresh init" semantics that `codegraph * index` documents. * * Unlike `open()` followed by `clear()`, this DISCARDS the existing * `.codegraph/codegraph.db` (and its `-wal`/`-shm`

(projectRoot: string)

   * (and running migrations against) the poisoned database entirely.
   */
  static async recreate(projectRoot: string): Promise<CodeGraph> {
    await initGrammars();
    const resolvedRoot = path.resolve(projectRoot);

    // Check if initialized — recreate REBUILDS an existing project; it is not a
    // first-time `init`.
    if (!isInitialized(resolvedRoot)) {
      throw new Error(`CodeGraph not initialized in ${resolvedRoot}. Run init() first.`);
    }

    const dbPath = getDatabasePath(resolvedRoot);
    try {
      removeDatabaseFiles(dbPath);
    } catch (err) {
      // POSIX unlinks an open file fine; this fires mainly on Windows when a
      // live daemon/MCP server still holds the database. Turn the raw EBUSY into
      // an actionable instruction instead of a generic failure.
      const reason = err instanceof Error ? err.message : String(err);
      throw new Error(
        `Could not rebuild the index — the database file is in use (${reason}). ` +
          `Stop any running CodeGraph MCP server/daemon for this project and retry, ` +
          `or remove the ${getCodeGraphDir(resolvedRoot)} directory and run "codegraph init".`
      );
    }

    // Re-create an empty, freshly-schema'd database at the same path.
    const db = DatabaseConnection.initialize(dbPath);
    const queries = new QueryBuilder(db.getDb());

    return new CodeGraph(db, queries, resolvedRoot);
  }

  /**
   * Open synchronously (without sync)