declare module 'child_process' {
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import * as events from 'events';
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import * as net from 'net';
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import { Writable, Readable, Stream, Pipe } from 'stream';
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interface ChildProcess extends events.EventEmitter {
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stdin: Writable | null;
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stdout: Readable | null;
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stderr: Readable | null;
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readonly channel?: Pipe | null;
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readonly stdio: [
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Writable | null, // stdin
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Readable | null, // stdout
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Readable | null, // stderr
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Readable | Writable | null | undefined, // extra
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Readable | Writable | null | undefined // extra
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];
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readonly killed: boolean;
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readonly pid: number;
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readonly connected: boolean;
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readonly exitCode: number | null;
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readonly signalCode: number | null;
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readonly spawnargs: string[];
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readonly spawnfile: string;
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kill(signal?: NodeJS.Signals | number): boolean;
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send(message: any, callback?: (error: Error | null) => void): boolean;
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send(message: any, sendHandle?: net.Socket | net.Server, callback?: (error: Error | null) => void): boolean;
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send(message: any, sendHandle?: net.Socket | net.Server, options?: MessageOptions, callback?: (error: Error | null) => void): boolean;
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disconnect(): void;
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unref(): void;
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ref(): void;
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/**
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* events.EventEmitter
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* 1. close
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* 2. disconnect
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* 3. error
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* 4. exit
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* 5. message
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*/
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addListener(event: string, listener: (...args: any[]) => void): this;
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addListener(event: "close", listener: (code: number, signal: NodeJS.Signals) => void): this;
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addListener(event: "disconnect", listener: () => void): this;
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addListener(event: "error", listener: (err: Error) => void): this;
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addListener(event: "exit", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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addListener(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
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emit(event: string | symbol, ...args: any[]): boolean;
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emit(event: "close", code: number, signal: NodeJS.Signals): boolean;
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emit(event: "disconnect"): boolean;
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emit(event: "error", err: Error): boolean;
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emit(event: "exit", code: number | null, signal: NodeJS.Signals | null): boolean;
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emit(event: "message", message: any, sendHandle: net.Socket | net.Server): boolean;
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on(event: string, listener: (...args: any[]) => void): this;
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on(event: "close", listener: (code: number, signal: NodeJS.Signals) => void): this;
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on(event: "disconnect", listener: () => void): this;
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on(event: "error", listener: (err: Error) => void): this;
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on(event: "exit", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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on(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
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once(event: string, listener: (...args: any[]) => void): this;
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once(event: "close", listener: (code: number, signal: NodeJS.Signals) => void): this;
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once(event: "disconnect", listener: () => void): this;
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once(event: "error", listener: (err: Error) => void): this;
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once(event: "exit", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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once(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
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prependListener(event: string, listener: (...args: any[]) => void): this;
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prependListener(event: "close", listener: (code: number, signal: NodeJS.Signals) => void): this;
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prependListener(event: "disconnect", listener: () => void): this;
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prependListener(event: "error", listener: (err: Error) => void): this;
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prependListener(event: "exit", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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prependListener(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
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prependOnceListener(event: string, listener: (...args: any[]) => void): this;
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prependOnceListener(event: "close", listener: (code: number, signal: NodeJS.Signals) => void): this;
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prependOnceListener(event: "disconnect", listener: () => void): this;
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prependOnceListener(event: "error", listener: (err: Error) => void): this;
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prependOnceListener(event: "exit", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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prependOnceListener(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
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}
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// return this object when stdio option is undefined or not specified
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interface ChildProcessWithoutNullStreams extends ChildProcess {
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stdin: Writable;
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stdout: Readable;
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stderr: Readable;
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readonly stdio: [
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Writable, // stdin
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Readable, // stdout
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Readable, // stderr
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Readable | Writable | null | undefined, // extra, no modification
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Readable | Writable | null | undefined // extra, no modification
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];
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}
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// return this object when stdio option is a tuple of 3
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interface ChildProcessByStdio<
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I extends null | Writable,
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O extends null | Readable,
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E extends null | Readable,
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> extends ChildProcess {
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stdin: I;
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stdout: O;
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stderr: E;
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readonly stdio: [
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I,
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O,
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E,
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Readable | Writable | null | undefined, // extra, no modification
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Readable | Writable | null | undefined // extra, no modification
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];
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}
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interface MessageOptions {
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keepOpen?: boolean;
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}
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type StdioOptions = "pipe" | "ignore" | "inherit" | Array<("pipe" | "ipc" | "ignore" | "inherit" | Stream | number | null | undefined)>;
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interface ProcessEnvOptions {
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uid?: number;
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gid?: number;
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cwd?: string;
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env?: NodeJS.ProcessEnv;
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}
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interface CommonOptions extends ProcessEnvOptions {
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/**
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* @default true
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*/
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windowsHide?: boolean;
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/**
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* @default 0
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*/
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timeout?: number;
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}
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interface SpawnOptions extends CommonOptions {
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argv0?: string;
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stdio?: StdioOptions;
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detached?: boolean;
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shell?: boolean | string;
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windowsVerbatimArguments?: boolean;
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}
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interface SpawnOptionsWithoutStdio extends SpawnOptions {
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stdio?: 'pipe' | Array<null | undefined | 'pipe'>;
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}
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type StdioNull = 'inherit' | 'ignore' | Stream;
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type StdioPipe = undefined | null | 'pipe';
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interface SpawnOptionsWithStdioTuple<
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Stdin extends StdioNull | StdioPipe,
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Stdout extends StdioNull | StdioPipe,
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Stderr extends StdioNull | StdioPipe,
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> extends SpawnOptions {
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stdio: [Stdin, Stdout, Stderr];
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}
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// overloads of spawn without 'args'
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function spawn(command: string, options?: SpawnOptionsWithoutStdio): ChildProcessWithoutNullStreams;
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function spawn(
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command: string,
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options: SpawnOptionsWithStdioTuple<StdioPipe, StdioPipe, StdioPipe>,
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): ChildProcessByStdio<Writable, Readable, Readable>;
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function spawn(
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command: string,
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options: SpawnOptionsWithStdioTuple<StdioPipe, StdioPipe, StdioNull>,
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): ChildProcessByStdio<Writable, Readable, null>;
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function spawn(
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command: string,
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options: SpawnOptionsWithStdioTuple<StdioPipe, StdioNull, StdioPipe>,
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): ChildProcessByStdio<Writable, null, Readable>;
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function spawn(
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command: string,
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options: SpawnOptionsWithStdioTuple<StdioNull, StdioPipe, StdioPipe>,
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): ChildProcessByStdio<null, Readable, Readable>;
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function spawn(
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command: string,
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options: SpawnOptionsWithStdioTuple<StdioPipe, StdioNull, StdioNull>,
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): ChildProcessByStdio<Writable, null, null>;
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function spawn(
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command: string,
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options: SpawnOptionsWithStdioTuple<StdioNull, StdioPipe, StdioNull>,
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): ChildProcessByStdio<null, Readable, null>;
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function spawn(
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command: string,
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options: SpawnOptionsWithStdioTuple<StdioNull, StdioNull, StdioPipe>,
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): ChildProcessByStdio<null, null, Readable>;
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function spawn(
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command: string,
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options: SpawnOptionsWithStdioTuple<StdioNull, StdioNull, StdioNull>,
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): ChildProcessByStdio<null, null, null>;
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function spawn(command: string, options: SpawnOptions): ChildProcess;
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// overloads of spawn with 'args'
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function spawn(command: string, args?: ReadonlyArray<string>, options?: SpawnOptionsWithoutStdio): ChildProcessWithoutNullStreams;
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function spawn(
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command: string,
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args: ReadonlyArray<string>,
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options: SpawnOptionsWithStdioTuple<StdioPipe, StdioPipe, StdioPipe>,
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): ChildProcessByStdio<Writable, Readable, Readable>;
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function spawn(
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command: string,
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args: ReadonlyArray<string>,
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options: SpawnOptionsWithStdioTuple<StdioPipe, StdioPipe, StdioNull>,
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): ChildProcessByStdio<Writable, Readable, null>;
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function spawn(
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command: string,
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args: ReadonlyArray<string>,
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options: SpawnOptionsWithStdioTuple<StdioPipe, StdioNull, StdioPipe>,
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): ChildProcessByStdio<Writable, null, Readable>;
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function spawn(
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command: string,
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args: ReadonlyArray<string>,
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options: SpawnOptionsWithStdioTuple<StdioNull, StdioPipe, StdioPipe>,
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): ChildProcessByStdio<null, Readable, Readable>;
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function spawn(
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command: string,
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args: ReadonlyArray<string>,
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options: SpawnOptionsWithStdioTuple<StdioPipe, StdioNull, StdioNull>,
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): ChildProcessByStdio<Writable, null, null>;
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function spawn(
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command: string,
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args: ReadonlyArray<string>,
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options: SpawnOptionsWithStdioTuple<StdioNull, StdioPipe, StdioNull>,
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): ChildProcessByStdio<null, Readable, null>;
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function spawn(
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command: string,
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args: ReadonlyArray<string>,
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options: SpawnOptionsWithStdioTuple<StdioNull, StdioNull, StdioPipe>,
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): ChildProcessByStdio<null, null, Readable>;
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function spawn(
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command: string,
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args: ReadonlyArray<string>,
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options: SpawnOptionsWithStdioTuple<StdioNull, StdioNull, StdioNull>,
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): ChildProcessByStdio<null, null, null>;
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function spawn(command: string, args: ReadonlyArray<string>, options: SpawnOptions): ChildProcess;
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interface ExecOptions extends CommonOptions {
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shell?: string;
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maxBuffer?: number;
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killSignal?: NodeJS.Signals | number;
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}
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interface ExecOptionsWithStringEncoding extends ExecOptions {
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encoding: BufferEncoding;
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}
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interface ExecOptionsWithBufferEncoding extends ExecOptions {
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encoding: string | null; // specify `null`.
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}
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interface ExecException extends Error {
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cmd?: string;
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killed?: boolean;
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code?: number;
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signal?: NodeJS.Signals;
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}
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// no `options` definitely means stdout/stderr are `string`.
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function exec(command: string, callback?: (error: ExecException | null, stdout: string, stderr: string) => void): ChildProcess;
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// `options` with `"buffer"` or `null` for `encoding` means stdout/stderr are definitely `Buffer`.
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function exec(command: string, options: { encoding: "buffer" | null } & ExecOptions, callback?: (error: ExecException | null, stdout: Buffer, stderr: Buffer) => void): ChildProcess;
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// `options` with well known `encoding` means stdout/stderr are definitely `string`.
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function exec(command: string, options: { encoding: BufferEncoding } & ExecOptions, callback?: (error: ExecException | null, stdout: string, stderr: string) => void): ChildProcess;
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// `options` with an `encoding` whose type is `string` means stdout/stderr could either be `Buffer` or `string`.
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// There is no guarantee the `encoding` is unknown as `string` is a superset of `BufferEncoding`.
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function exec(command: string, options: { encoding: string } & ExecOptions, callback?: (error: ExecException | null, stdout: string | Buffer, stderr: string | Buffer) => void): ChildProcess;
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// `options` without an `encoding` means stdout/stderr are definitely `string`.
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function exec(command: string, options: ExecOptions, callback?: (error: ExecException | null, stdout: string, stderr: string) => void): ChildProcess;
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// fallback if nothing else matches. Worst case is always `string | Buffer`.
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function exec(
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command: string,
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options: ({ encoding?: string | null } & ExecOptions) | undefined | null,
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callback?: (error: ExecException | null, stdout: string | Buffer, stderr: string | Buffer) => void,
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): ChildProcess;
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interface PromiseWithChild<T> extends Promise<T> {
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child: ChildProcess;
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}
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// NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
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namespace exec {
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function __promisify__(command: string): PromiseWithChild<{ stdout: string, stderr: string }>;
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function __promisify__(command: string, options: { encoding: "buffer" | null } & ExecOptions): PromiseWithChild<{ stdout: Buffer, stderr: Buffer }>;
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function __promisify__(command: string, options: { encoding: BufferEncoding } & ExecOptions): PromiseWithChild<{ stdout: string, stderr: string }>;
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function __promisify__(command: string, options: ExecOptions): PromiseWithChild<{ stdout: string, stderr: string }>;
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function __promisify__(command: string, options?: ({ encoding?: string | null } & ExecOptions) | null): PromiseWithChild<{ stdout: string | Buffer, stderr: string | Buffer }>;
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}
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interface ExecFileOptions extends CommonOptions {
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maxBuffer?: number;
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killSignal?: NodeJS.Signals | number;
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windowsVerbatimArguments?: boolean;
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shell?: boolean | string;
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}
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interface ExecFileOptionsWithStringEncoding extends ExecFileOptions {
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encoding: BufferEncoding;
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}
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interface ExecFileOptionsWithBufferEncoding extends ExecFileOptions {
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encoding: 'buffer' | null;
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}
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interface ExecFileOptionsWithOtherEncoding extends ExecFileOptions {
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encoding: string;
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}
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function execFile(file: string): ChildProcess;
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function execFile(file: string, options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null): ChildProcess;
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function execFile(file: string, args?: ReadonlyArray<string> | null): ChildProcess;
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function execFile(file: string, args: ReadonlyArray<string> | undefined | null, options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null): ChildProcess;
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// no `options` definitely means stdout/stderr are `string`.
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function execFile(file: string, callback: (error: ExecException | null, stdout: string, stderr: string) => void): ChildProcess;
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function execFile(file: string, args: ReadonlyArray<string> | undefined | null, callback: (error: ExecException | null, stdout: string, stderr: string) => void): ChildProcess;
|
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// `options` with `"buffer"` or `null` for `encoding` means stdout/stderr are definitely `Buffer`.
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function execFile(file: string, options: ExecFileOptionsWithBufferEncoding, callback: (error: ExecException | null, stdout: Buffer, stderr: Buffer) => void): ChildProcess;
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function execFile(
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file: string,
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args: ReadonlyArray<string> | undefined | null,
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options: ExecFileOptionsWithBufferEncoding,
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callback: (error: ExecException | null, stdout: Buffer, stderr: Buffer) => void,
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): ChildProcess;
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// `options` with well known `encoding` means stdout/stderr are definitely `string`.
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function execFile(file: string, options: ExecFileOptionsWithStringEncoding, callback: (error: ExecException | null, stdout: string, stderr: string) => void): ChildProcess;
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function execFile(
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file: string,
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args: ReadonlyArray<string> | undefined | null,
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options: ExecFileOptionsWithStringEncoding,
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callback: (error: ExecException | null, stdout: string, stderr: string) => void,
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): ChildProcess;
|
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// `options` with an `encoding` whose type is `string` means stdout/stderr could either be `Buffer` or `string`.
|
// There is no guarantee the `encoding` is unknown as `string` is a superset of `BufferEncoding`.
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function execFile(
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file: string,
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options: ExecFileOptionsWithOtherEncoding,
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callback: (error: ExecException | null, stdout: string | Buffer, stderr: string | Buffer) => void,
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): ChildProcess;
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function execFile(
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file: string,
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args: ReadonlyArray<string> | undefined | null,
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options: ExecFileOptionsWithOtherEncoding,
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callback: (error: ExecException | null, stdout: string | Buffer, stderr: string | Buffer) => void,
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): ChildProcess;
|
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// `options` without an `encoding` means stdout/stderr are definitely `string`.
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function execFile(file: string, options: ExecFileOptions, callback: (error: ExecException | null, stdout: string, stderr: string) => void): ChildProcess;
|
function execFile(
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file: string,
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args: ReadonlyArray<string> | undefined | null,
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options: ExecFileOptions,
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callback: (error: ExecException | null, stdout: string, stderr: string) => void
|
): ChildProcess;
|
|
// fallback if nothing else matches. Worst case is always `string | Buffer`.
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function execFile(
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file: string,
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options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null,
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callback: ((error: ExecException | null, stdout: string | Buffer, stderr: string | Buffer) => void) | undefined | null,
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): ChildProcess;
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function execFile(
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file: string,
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args: ReadonlyArray<string> | undefined | null,
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options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null,
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callback: ((error: ExecException | null, stdout: string | Buffer, stderr: string | Buffer) => void) | undefined | null,
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): ChildProcess;
|
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// NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
|
namespace execFile {
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function __promisify__(file: string): PromiseWithChild<{ stdout: string, stderr: string }>;
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function __promisify__(file: string, args: ReadonlyArray<string> | undefined | null): PromiseWithChild<{ stdout: string, stderr: string }>;
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function __promisify__(file: string, options: ExecFileOptionsWithBufferEncoding): PromiseWithChild<{ stdout: Buffer, stderr: Buffer }>;
|
function __promisify__(file: string, args: ReadonlyArray<string> | undefined | null, options: ExecFileOptionsWithBufferEncoding): PromiseWithChild<{ stdout: Buffer, stderr: Buffer }>;
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function __promisify__(file: string, options: ExecFileOptionsWithStringEncoding): PromiseWithChild<{ stdout: string, stderr: string }>;
|
function __promisify__(file: string, args: ReadonlyArray<string> | undefined | null, options: ExecFileOptionsWithStringEncoding): PromiseWithChild<{ stdout: string, stderr: string }>;
|
function __promisify__(file: string, options: ExecFileOptionsWithOtherEncoding): PromiseWithChild<{ stdout: string | Buffer, stderr: string | Buffer }>;
|
function __promisify__(
|
file: string,
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args: ReadonlyArray<string> | undefined | null,
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options: ExecFileOptionsWithOtherEncoding,
|
): PromiseWithChild<{ stdout: string | Buffer, stderr: string | Buffer }>;
|
function __promisify__(file: string, options: ExecFileOptions): PromiseWithChild<{ stdout: string, stderr: string }>;
|
function __promisify__(file: string, args: ReadonlyArray<string> | undefined | null, options: ExecFileOptions): PromiseWithChild<{ stdout: string, stderr: string }>;
|
function __promisify__(file: string, options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null): PromiseWithChild<{ stdout: string | Buffer, stderr: string | Buffer }>;
|
function __promisify__(
|
file: string,
|
args: ReadonlyArray<string> | undefined | null,
|
options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null,
|
): PromiseWithChild<{ stdout: string | Buffer, stderr: string | Buffer }>;
|
}
|
|
interface ForkOptions extends ProcessEnvOptions {
|
execPath?: string;
|
execArgv?: string[];
|
silent?: boolean;
|
stdio?: StdioOptions;
|
detached?: boolean;
|
windowsVerbatimArguments?: boolean;
|
}
|
function fork(modulePath: string, options?: ForkOptions): ChildProcess;
|
function fork(modulePath: string, args?: ReadonlyArray<string>, options?: ForkOptions): ChildProcess;
|
|
interface SpawnSyncOptions extends CommonOptions {
|
argv0?: string; // Not specified in the docs
|
input?: string | NodeJS.ArrayBufferView;
|
stdio?: StdioOptions;
|
killSignal?: NodeJS.Signals | number;
|
maxBuffer?: number;
|
encoding?: string;
|
shell?: boolean | string;
|
windowsVerbatimArguments?: boolean;
|
}
|
interface SpawnSyncOptionsWithStringEncoding extends SpawnSyncOptions {
|
encoding: BufferEncoding;
|
}
|
interface SpawnSyncOptionsWithBufferEncoding extends SpawnSyncOptions {
|
encoding: string; // specify `null`.
|
}
|
interface SpawnSyncReturns<T> {
|
pid: number;
|
output: string[];
|
stdout: T;
|
stderr: T;
|
status: number | null;
|
signal: NodeJS.Signals | null;
|
error?: Error;
|
}
|
function spawnSync(command: string): SpawnSyncReturns<Buffer>;
|
function spawnSync(command: string, options?: SpawnSyncOptionsWithStringEncoding): SpawnSyncReturns<string>;
|
function spawnSync(command: string, options?: SpawnSyncOptionsWithBufferEncoding): SpawnSyncReturns<Buffer>;
|
function spawnSync(command: string, options?: SpawnSyncOptions): SpawnSyncReturns<Buffer>;
|
function spawnSync(command: string, args?: ReadonlyArray<string>, options?: SpawnSyncOptionsWithStringEncoding): SpawnSyncReturns<string>;
|
function spawnSync(command: string, args?: ReadonlyArray<string>, options?: SpawnSyncOptionsWithBufferEncoding): SpawnSyncReturns<Buffer>;
|
function spawnSync(command: string, args?: ReadonlyArray<string>, options?: SpawnSyncOptions): SpawnSyncReturns<Buffer>;
|
|
interface ExecSyncOptions extends CommonOptions {
|
input?: string | Uint8Array;
|
stdio?: StdioOptions;
|
shell?: string;
|
killSignal?: NodeJS.Signals | number;
|
maxBuffer?: number;
|
encoding?: string;
|
}
|
interface ExecSyncOptionsWithStringEncoding extends ExecSyncOptions {
|
encoding: BufferEncoding;
|
}
|
interface ExecSyncOptionsWithBufferEncoding extends ExecSyncOptions {
|
encoding: string; // specify `null`.
|
}
|
function execSync(command: string): Buffer;
|
function execSync(command: string, options?: ExecSyncOptionsWithStringEncoding): string;
|
function execSync(command: string, options?: ExecSyncOptionsWithBufferEncoding): Buffer;
|
function execSync(command: string, options?: ExecSyncOptions): Buffer;
|
|
interface ExecFileSyncOptions extends CommonOptions {
|
input?: string | NodeJS.ArrayBufferView;
|
stdio?: StdioOptions;
|
killSignal?: NodeJS.Signals | number;
|
maxBuffer?: number;
|
encoding?: string;
|
shell?: boolean | string;
|
}
|
interface ExecFileSyncOptionsWithStringEncoding extends ExecFileSyncOptions {
|
encoding: BufferEncoding;
|
}
|
interface ExecFileSyncOptionsWithBufferEncoding extends ExecFileSyncOptions {
|
encoding: string; // specify `null`.
|
}
|
function execFileSync(command: string): Buffer;
|
function execFileSync(command: string, options?: ExecFileSyncOptionsWithStringEncoding): string;
|
function execFileSync(command: string, options?: ExecFileSyncOptionsWithBufferEncoding): Buffer;
|
function execFileSync(command: string, options?: ExecFileSyncOptions): Buffer;
|
function execFileSync(command: string, args?: ReadonlyArray<string>, options?: ExecFileSyncOptionsWithStringEncoding): string;
|
function execFileSync(command: string, args?: ReadonlyArray<string>, options?: ExecFileSyncOptionsWithBufferEncoding): Buffer;
|
function execFileSync(command: string, args?: ReadonlyArray<string>, options?: ExecFileSyncOptions): Buffer;
|
}
|
