import { DirEntry, FileEntry, Tree } from '@angular-devkit/schematics';
import * as typescript from 'typescript';
import { SourceFileModification } from '../ast/source-file-modification.interface';
import { SchemaOptions } from '../types/schema-options/schema-options.interface';
export declare function deleteFile(tree: Tree, filename: string): void;
export declare function getSubDirEntry(directory: DirEntry, subDirectoryNames: string[]): DirEntry;
export declare function getSubFileEntry(directory: DirEntry, subFileName: string): FileEntry;
export declare function getSubDirFileEntry(directory: DirEntry, subDirectoryNames: string[], subFileName: string): FileEntry;
export declare function findFilenameInTree(directory: DirEntry, fileMatchesCriteria: (file: string) => boolean): string;
export declare function findModuleFilenameInTree(tree: Tree, options: SchemaOptions): string;
export declare function findParentModuleFilenameInTree(tree: Tree, options: SchemaOptions): string;
export declare function findParentRoutingModuleFilenameInTree(tree: Tree, options: SchemaOptions): string;
export declare function openSourceFileFromTree(tree: Tree, filename: string): typescript.SourceFile;
export declare function applyModificationsToTreeFile(tree: Tree, filename: string, modifications: SourceFileModification[]): void;
export declare function getTouchedFiles(tree: Tree): any[];