# All files / src/db config.ts

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     import { mkdirSync } from 'node:fs';
    import { dirname, join } from 'node:path';
    import { findWorkspaceRoot } from '../config/cwrc.js';

    /**
     * Get the database path.
     *
     * - Default: <workspace-root>/.cw/cw.db
     * - Throws if no .cwrc workspace is found
     * - Override via CW_DB_PATH environment variable
     * - For testing, pass ':memory:' as CW_DB_PATH
     */
    export function getDbPath(): string {
      const envPath = process.env.CW_DB_PATH;
      if (envPath) {
        return envPath;
      }

      const root = findWorkspaceRoot();
      if (!root) {
        throw new Error(
          'No .cwrc workspace found. Run `cw init` to initialize a workspace.',
        );
      }
      return join(root, '.cw', 'cw.db');
    }

    /**
     * Ensure the parent directory for the database file exists.
     * No-op for in-memory databases.
     */
    export function ensureDbDirectory(dbPath: string): void {
      // Skip for in-memory database
      if (dbPath === ':memory:') {
        return;
      }

      const dir = dirname(dbPath);
      mkdirSync(dir, { recursive: true });
    }