import { ProjectConfiguration, Tree } from '@nx/devkit';
import { Assets } from './coerce-assets';
import { UpdateJsonFileOptions } from './json-file';
import { TreeLike } from './tree';
export interface NgPackageJson {
    $schema?: string;
    lib?: {
        entryFile?: string;
    };
    dist?: string;
    assets?: Assets;
    allowedNonPeerDependencies?: string[];
}
/**
 * Reads and parses the `ng-package.json` file from a specified project within a workspace tree.
 *
 * This function is designed to retrieve the configuration details specific to Angular libraries
 * from the `ng-package.json` file located in the project's root directory. It ensures that the
 * file exists before attempting to read it, throwing an error if the file is not found.
 *
 * @param {Tree} tree - The abstract representation of the file system within a workspace.
 * @param {ProjectConfiguration} project - The configuration object for the specific project.
 * @returns {NgPackageJson} The parsed JSON object from the `ng-package.json` file.
 * @throws {Error} Throws an error if the `ng-package.json` file does not exist in the project's root directory.
 */
export declare function ReadNgPackageJson(tree: Tree, project: ProjectConfiguration): NgPackageJson;
/**
 * Writes the Angular package configuration file (`ng-package.json`) to the specified project directory.
 *
 * @param tree - The abstract representation of the file tree used for performing file operations.
 * @param project - The configuration object containing details about the project, including the root directory.
 * @param ngPackageJson - The JSON object representing the contents to be written to the `ng-package.json` file.
 */
export declare function WriteNgPackageJson(tree: Tree, project: ProjectConfiguration, ngPackageJson: NgPackageJson): void;
export declare function HasNgPackageJson(tree: TreeLike, projectOrRoot: ProjectConfiguration | string): boolean;
export interface UpdateNgPackageJsonOptions extends UpdateJsonFileOptions {
    projectName?: string;
    project?: {
        root: string;
    };
    projectRoot?: string;
}
export declare function UpdateNgPackageJson<Tree extends TreeLike>(tree: Tree, updaterOrJsonFile: NgPackageJson | ((ngPackageJson: NgPackageJson) => void), options: UpdateNgPackageJsonOptions): void;
export declare function UpdateNgPackageJson<Tree extends TreeLike>(tree: Tree, updaterOrJsonFile: NgPackageJson | ((ngPackageJson: NgPackageJson) => Promise<void>), options: UpdateNgPackageJsonOptions): Promise<void>;
export declare function isNgPackagrProject(tree: TreeLike, project: ProjectConfiguration): boolean;