/// <reference types="node" />
import { ChildProcess } from "child_process";
import { Incident } from "incident";
export interface ExecFileOptions {
    cwd?: string;
    env?: {
        [key: string]: string;
    };
    timeout?: number;
    maxBuffer?: number;
    killSignal?: string;
    uid?: number;
    gid?: number;
}
export interface ExecFileResult {
    stdout: Buffer;
    stderr: Buffer;
}
export interface ExecFileErrorData {
    /**
     * Executed command
     */
    cmd: string;
    killed: boolean;
    /**
     * Exit code: 0 if the execution was successful, else there was a runtime error
     */
    code: number;
    signal: null | any;
    stdout: Buffer;
    stderr: Buffer;
}
export declare class ExecFileError extends Incident<ExecFileErrorData, "ExecFileError", Error> {
    constructor(nativeError: Error, stdout: Buffer | string, stderr: Buffer | string);
}
export declare function readText(file: string): Promise<string>;
export declare function writeText(file: string, text: string): Promise<void>;
export declare function execFile(file: string, args: string[], options?: ExecFileOptions): Promise<ExecFileResult>;
export interface SpawnOptions {
    cwd?: string;
    env?: {
        [key: string]: string;
    };
    stdio?: "inherit" | "pipe";
    /**
     * Run in detached mode. Default: `false`.
     */
    detached?: boolean;
}
export interface SpawnResult {
    /**
     * Buffer containing the whole standard output of the spawned process.
     */
    stdout: Buffer;
    /**
     * Buffer containing the whole standard error of the spawned process.
     */
    stderr: Buffer;
    /**
     * Exit value of the spawned process: a return code or exit signal.
     */
    exit: Exit;
}
/**
 * Exit value of a spawned process: a return code or exit signal
 */
export declare type Exit = SignalExit | CodeExit;
export interface CodeExit {
    type: "code";
    code: number;
}
export interface SignalExit {
    type: "signal";
    signal: string;
}
export declare class SpawnedProcess {
    readonly process: ChildProcess;
    private readonly stdoutChunks;
    private readonly stderrChunks;
    private exit?;
    constructor(file: string, args: string[], options: SpawnOptions);
    toPromise(): Promise<SpawnResult>;
    private getBuffers();
}