Function loadExtConfigTS

cli/src/config.ts:98–132

(
  rootDir: string,
  extConfigName: string,
  extConfigFilePath: string,
)

type ExtConfigPairs = Pick<AppConfig, 'extConfigType' | 'extConfigName' | 'extConfigFilePath' | 'extConfig'>;

async function loadExtConfigTS(
  rootDir: string,
  extConfigName: string,
  extConfigFilePath: string,
): Promise<ExtConfigPairs> {
  try {
    const tsPath = resolveNode(rootDir, 'typescript');

    if (!tsPath) {
      fatal(
        'Could not find installation of TypeScript.\n' +
          `To use ${c.strong(extConfigName)} files, you must install TypeScript in your project, e.g. w/ ${c.input(
            'npm install -D typescript',
          )}`,
      );
    }

    const ts = require(tsPath); // eslint-disable-line @typescript-eslint/no-var-requires
    const extConfigObject = requireTS(ts, extConfigFilePath) as any;
    const extConfig = extConfigObject.default ? await extConfigObject.default : extConfigObject;

    return {
      extConfigType: 'ts',
      extConfigName,
      extConfigFilePath: extConfigFilePath,
      extConfig,
    };
  } catch (e: any) {
    if (!isFatal(e)) {
      fatal(`Parsing ${c.strong(extConfigName)} failed.\n\n${e.stack ?? e}`);
    }

    throw e;
  }
}

async function loadExtConfigJS(
  rootDir: string,