/// <reference types="node" />
/// <reference types="node" />
/// <reference types="node" />
import { SystemError } from './error';
import * as crypto from 'crypto';
export declare class FileError extends SystemError {
    readonly operation: string;
    readonly reason: string;
    constructor(operation: string, reason: string);
}
export declare class File {
    private readonly filePath;
    constructor(filePath: string);
    /** Appends this file with the given data. If the file does not exist it will be created. */
    append(data: Buffer | string): Promise<void>;
    /** Copies this file into the target folder. If the target folder does not exist it will be created. */
    copy(folderPath: string): Promise<void>;
    /** Creates an empty file if not exists. */
    create(): Promise<void>;
    /** Deletes this file if it exists. Otherwise no action. */
    delete(): Promise<void>;
    /** Replaces text content in this file that matches the given string or regular expression. */
    edit(pattern: RegExp | string, replacement: string): Promise<void>;
    /** Returns true if this file exists. */
    exists(): Promise<boolean>;
    /** Returns a hash for this file with the given algorithm (default is sha1, digest is hex) */
    hash(algorithm?: string, digest?: crypto.BinaryToTextEncoding): Promise<string>;
    /** Moves this file into the target folder. If the target folder does not exist it will be created. */
    move(folderPath: string): Promise<void>;
    /** Prepends this file with the given data. If the file does not exist it will be created. */
    prepend(data: Buffer | string): Promise<void>;
    /** Reads this file as a JSON object. Will throw if the content cannot be parsed. */
    json<T = any>(): Promise<T>;
    /** Returns the absolute path of this file. */
    path(): string;
    /** Reads this file as a buffer. */
    read(): Promise<Buffer>;
    /** Reads this file with the given encoding. */
    read(encoding: BufferEncoding): Promise<string>;
    /** Renames this file to the given newname. */
    rename(newName: string): Promise<void>;
    /** Returns the size of this file in bytes. */
    size(): Promise<number>;
    /** Returns the stats object for this file. */
    stat(): Promise<import("fs").Stats>;
    /** Truncates the contents of this file. If the file does not exist, it is created. */
    truncate(length?: number): Promise<void>;
    /** Writes to this file. If the file does not exist, it is created. */
    write(data: string | Buffer): Promise<void>;
    /** Asserts the given path exists. */
    private assertExists;
    /** Checks the given path exists. */
    private checkExists;
    /** Creates a directory if not exists. */
    private createFolder;
}
/** Returns an interface to interact with a file. */
export declare function file(file: string): File;