import { System } from './system';
export declare enum SystemExtraErrorName {
    SYSTEM_EXTRA_DIR_WITH_FILE_NOT_FOUND = "systemExtraDirWithFileNotFound"
}
export interface SystemExtraDirWithFileNotFoundError {
    type: SystemExtraErrorName.SYSTEM_EXTRA_DIR_WITH_FILE_NOT_FOUND;
    file: string;
}
export type SystemExtraErrorInfo = SystemExtraDirWithFileNotFoundError;
export declare function findAncestorDirIncludingNameAsync({ fs: { readdirAsync }, path }: System, searchFrom: string, name: string): Promise<string>;
export declare function copyAsync(sys: System, sourcePath: string, destinationPath: string): Promise<void>;
export declare function mkdirpAsync(sys: System, directoryPath: string): Promise<void>;
export declare function rmdirAsync(sys: System, directoryPath: string): Promise<void>;
export declare function removeDirOrFileIfExistsAsync(sys: System, dirOrFile: string): Promise<void>;
export declare function unlinkIfExistsAsync({ fs: { unlinkAsync } }: System, filepath: string): Promise<void>;
export declare function writeFileAtomicallyAsync(sys: System, filepath: string, content: Buffer): Promise<void>;
export declare function atomicify(sys: System): System;
export declare function readJsonIfExistsAsync({ fs: { readFileAsync } }: System, path: string): Promise<ReturnType<JSON['parse']> | null>;
export declare function writeFormattedJsonAsync(sys: System, path: string, data: any): Promise<void>;
export declare function findExtensionAsync({ fs: { readFileAsync } }: System, name: string, extensions: string[]): Promise<string>;
/**
 * Determine whether a directory exists in a given system on a given path.
 */
export declare function dirExistsAsync(sys: System, path: string): Promise<boolean>;
interface WhenModified {
    whenModified: Promise<void>;
}
/**
 * Wait for the modification or deletion of a file located on a given System
 * and at a given path.
 *
 * To promote cross-platform consistency (and to tolerate certain kinds of file
 * operations), this function detects change by reading the watched file's
 * contents. This heuristic may make the function unsuitable for use with large
 * files.
 */
export declare function watchFileAsync(sys: System, path: string): Promise<WhenModified>;
export {};