| 13 | const searchStrategy = "global"; |
| 14 | |
| 15 | export async function loadConfig( |
| 16 | cwd: string, |
| 17 | configPath?: string, |
| 18 | ): Promise<LoadConfigResult | null> { |
| 19 | let tsLoaderInstance: Loader | undefined; |
| 20 | const tsLoader: Loader = (...args) => { |
| 21 | if (!tsLoaderInstance) { |
| 22 | tsLoaderInstance = TypeScriptLoader(); |
| 23 | } |
| 24 | return tsLoaderInstance(...args); |
| 25 | }; |
| 26 | |
| 27 | const explorer = cosmiconfig(moduleName, { |
| 28 | searchStrategy, |
| 29 | searchPlaces: [ |
| 30 | // cosmiconfig overrides default searchPlaces if any new search place is added (For e.g. `*.ts` files), |
| 31 | // we need to manually merge default searchPlaces from https://github.com/davidtheclark/cosmiconfig#searchplaces |
| 32 | "package.json", |
| 33 | "package.yaml", |
| 34 | `.${moduleName}rc`, |
| 35 | `.${moduleName}rc.json`, |
| 36 | `.${moduleName}rc.yaml`, |
| 37 | `.${moduleName}rc.yml`, |
| 38 | `.${moduleName}rc.js`, |
| 39 | `.${moduleName}rc.cjs`, |
| 40 | `.${moduleName}rc.mjs`, |
| 41 | `${moduleName}.config.js`, |
| 42 | `${moduleName}.config.cjs`, |
| 43 | `${moduleName}.config.mjs`, |
| 44 | |
| 45 | // files supported by TypescriptLoader |
| 46 | `.${moduleName}rc.ts`, |
| 47 | `.${moduleName}rc.cts`, |
| 48 | `.${moduleName}rc.mts`, |
| 49 | `${moduleName}.config.ts`, |
| 50 | `${moduleName}.config.cts`, |
| 51 | `${moduleName}.config.mts`, |
| 52 | ], |
| 53 | loaders: { |
| 54 | ".ts": tsLoader, |
| 55 | ".cts": tsLoader, |
| 56 | ".mts": tsLoader, |
| 57 | ".cjs": defaultLoaders[".cjs"], |
| 58 | ".js": defaultLoaders[".js"], |
| 59 | }, |
| 60 | }); |
| 61 | |
| 62 | const explicitPath = configPath ? path.resolve(cwd, configPath) : undefined; |
| 63 | const explore = explicitPath ? explorer.load : explorer.search; |
| 64 | const searchPath = explicitPath ? explicitPath : cwd; |
| 65 | const local = await explore(searchPath); |
| 66 | |
| 67 | if (local) { |
| 68 | return local; |
| 69 | } |
| 70 | |
| 71 | return null; |
| 72 | } |