import { Observable } from 'rxjs/Observable';
import { BuildGraph } from '../brocc/build-graph';
import { Transform } from '../brocc/transform';
/**
 * A transformation for building an npm package:
 *
 *  - discoverPackages
 *  - initTsConfig
 *  - analyzeTsSources (thereby extracting template and stylesheet files)
 *  - for each entry point
 *    - run the entryPontTransform
 *  - writeNpmPackage
 *
 * @param project Project token, reference to `ng-package.json`
 * @param initTsConfigTransform Transformation initializing the tsconfig of each entry point.
 * @param analyseSourcesTransform Transformation analyzing the typescript source files of each entry point.
 * @param entryPointTransform Transformation for asset rendering and compilation of a single entry point.
 */
export declare const packageTransformFactory: (project: string, initTsConfigTransform: Transform, analyseSourcesTransform: Transform, entryPointTransform: Transform) => (source$: Observable<BuildGraph>) => Observable<BuildGraph>;