import {type Buffer} from 'node:buffer'; | |
import {type ChildProcess} from 'node:child_process'; | |
import {type Stream, type Readable as ReadableStream, type Writable as WritableStream} from 'node:stream'; | |
export type StdioOption = | |
| 'pipe' | |
| 'overlapped' | |
| 'ipc' | |
| 'ignore' | |
| 'inherit' | |
| Stream | |
| number | |
| undefined; | |
type EncodingOption = | |
| 'utf8' | |
// eslint-disable-next-line unicorn/text-encoding-identifier-case | |
| 'utf-8' | |
| 'utf16le' | |
| 'utf-16le' | |
| 'ucs2' | |
| 'ucs-2' | |
| 'latin1' | |
| 'binary' | |
| 'ascii' | |
| 'hex' | |
| 'base64' | |
| 'base64url' | |
| 'buffer' | |
| null | |
| undefined; | |
type DefaultEncodingOption = 'utf8'; | |
type BufferEncodingOption = 'buffer' | null; | |
export type CommonOptions<EncodingType extends EncodingOption = DefaultEncodingOption> = { | |
/** | |
Kill the spawned process when the parent process exits unless either: | |
- the spawned process is [`detached`](https://nodejs.org/api/child_process.html#child_process_options_detached) | |
- the parent process is terminated abruptly, for example, with `SIGKILL` as opposed to `SIGTERM` or a normal exit | |
@default true | |
*/ | |
readonly cleanup?: boolean; | |
/** | |
Prefer locally installed binaries when looking for a binary to execute. | |
If you `$ npm install foo`, you can then `execa('foo')`. | |
@default `true` with `$`, `false` otherwise | |
*/ | |
readonly preferLocal?: boolean; | |
/** | |
Preferred path to find locally installed binaries in (use with `preferLocal`). | |
@default process.cwd() | |
*/ | |
readonly localDir?: string | URL; | |
/** | |
Path to the Node.js executable to use in child processes. | |
This can be either an absolute path or a path relative to the `cwd` option. | |
Requires `preferLocal` to be `true`. | |
For example, this can be used together with [`get-node`](https://github.com/ehmicky/get-node) to run a specific Node.js version in a child process. | |
@default process.execPath | |
*/ | |
readonly execPath?: string; | |
/** | |
Buffer the output from the spawned process. When set to `false`, you must read the output of `stdout` and `stderr` (or `all` if the `all` option is `true`). Otherwise the returned promise will not be resolved/rejected. | |
If the spawned process fails, `error.stdout`, `error.stderr`, and `error.all` will contain the buffered data. | |
@default true | |
*/ | |
readonly buffer?: boolean; | |
/** | |
Same options as [`stdio`](https://nodejs.org/dist/latest-v6.x/docs/api/child_process.html#child_process_options_stdio). | |
@default `inherit` with `$`, `pipe` otherwise | |
*/ | |
readonly stdin?: StdioOption; | |
/** | |
Same options as [`stdio`](https://nodejs.org/dist/latest-v6.x/docs/api/child_process.html#child_process_options_stdio). | |
@default 'pipe' | |
*/ | |
readonly stdout?: StdioOption; | |
/** | |
Same options as [`stdio`](https://nodejs.org/dist/latest-v6.x/docs/api/child_process.html#child_process_options_stdio). | |
@default 'pipe' | |
*/ | |
readonly stderr?: StdioOption; | |
/** | |
Setting this to `false` resolves the promise with the error instead of rejecting it. | |
@default true | |
*/ | |
readonly reject?: boolean; | |
/** | |
Add an `.all` property on the promise and the resolved value. The property contains the output of the process with `stdout` and `stderr` interleaved. | |
@default false | |
*/ | |
readonly all?: boolean; | |
/** | |
Strip the final [newline character](https://en.wikipedia.org/wiki/Newline) from the output. | |
@default true | |
*/ | |
readonly stripFinalNewline?: boolean; | |
/** | |
Set to `false` if you don't want to extend the environment variables when providing the `env` property. | |
@default true | |
*/ | |
readonly extendEnv?: boolean; | |
/** | |
Current working directory of the child process. | |
@default process.cwd() | |
*/ | |
readonly cwd?: string | URL; | |
/** | |
Environment key-value pairs. Extends automatically from `process.env`. Set `extendEnv` to `false` if you don't want this. | |
@default process.env | |
*/ | |
readonly env?: NodeJS.ProcessEnv; | |
/** | |
Explicitly set the value of `argv[0]` sent to the child process. This will be set to `command` or `file` if not specified. | |
*/ | |
readonly argv0?: string; | |
/** | |
Child's [stdio](https://nodejs.org/api/child_process.html#child_process_options_stdio) configuration. | |
@default 'pipe' | |
*/ | |
readonly stdio?: 'pipe' | 'overlapped' | 'ignore' | 'inherit' | readonly StdioOption[]; | |
/** | |
Specify the kind of serialization used for sending messages between processes when using the `stdio: 'ipc'` option or `execaNode()`: | |
- `json`: Uses `JSON.stringify()` and `JSON.parse()`. | |
- `advanced`: Uses [`v8.serialize()`](https://nodejs.org/api/v8.html#v8_v8_serialize_value) | |
[More info.](https://nodejs.org/api/child_process.html#child_process_advanced_serialization) | |
@default 'json' | |
*/ | |
readonly serialization?: 'json' | 'advanced'; | |
/** | |
Prepare child to run independently of its parent process. Specific behavior [depends on the platform](https://nodejs.org/api/child_process.html#child_process_options_detached). | |
@default false | |
*/ | |
readonly detached?: boolean; | |
/** | |
Sets the user identity of the process. | |
*/ | |
readonly uid?: number; | |
/** | |
Sets the group identity of the process. | |
*/ | |
readonly gid?: number; | |
/** | |
If `true`, runs `command` inside of a shell. Uses `/bin/sh` on UNIX and `cmd.exe` on Windows. A different shell can be specified as a string. The shell should understand the `-c` switch on UNIX or `/d /s /c` on Windows. | |
We recommend against using this option since it is: | |
- not cross-platform, encouraging shell-specific syntax. | |
- slower, because of the additional shell interpretation. | |
- unsafe, potentially allowing command injection. | |
@default false | |
*/ | |
readonly shell?: boolean | string; | |
/** | |
Specify the character encoding used to decode the `stdout` and `stderr` output. If set to `'buffer'` or `null`, then `stdout` and `stderr` will be a `Buffer` instead of a string. | |
@default 'utf8' | |
*/ | |
readonly encoding?: EncodingType; | |
/** | |
If `timeout` is greater than `0`, the parent will send the signal identified by the `killSignal` property (the default is `SIGTERM`) if the child runs longer than `timeout` milliseconds. | |
@default 0 | |
*/ | |
readonly timeout?: number; | |
/** | |
Largest amount of data in bytes allowed on `stdout` or `stderr`. Default: 100 MB. | |
@default 100_000_000 | |
*/ | |
readonly maxBuffer?: number; | |
/** | |
Signal value to be used when the spawned process will be killed. | |
@default 'SIGTERM' | |
*/ | |
readonly killSignal?: string | number; | |
/** | |
You can abort the spawned process using [`AbortController`](https://developer.mozilla.org/en-US/docs/Web/API/AbortController). | |
When `AbortController.abort()` is called, [`.isCanceled`](https://github.com/sindresorhus/execa#iscanceled) becomes `true`. | |
@example | |
``` | |
import {execa} from 'execa'; | |
const abortController = new AbortController(); | |
const subprocess = execa('node', [], {signal: abortController.signal}); | |
setTimeout(() => { | |
abortController.abort(); | |
}, 1000); | |
try { | |
await subprocess; | |
} catch (error) { | |
console.log(subprocess.killed); // true | |
console.log(error.isCanceled); // true | |
} | |
``` | |
*/ | |
readonly signal?: AbortSignal; | |
/** | |
If `true`, no quoting or escaping of arguments is done on Windows. Ignored on other platforms. This is set to `true` automatically when the `shell` option is `true`. | |
@default false | |
*/ | |
readonly windowsVerbatimArguments?: boolean; | |
/** | |
On Windows, do not create a new console window. Please note this also prevents `CTRL-C` [from working](https://github.com/nodejs/node/issues/29837) on Windows. | |
@default true | |
*/ | |
readonly windowsHide?: boolean; | |
/** | |
Print each command on `stderr` before executing it. | |
This can also be enabled by setting the `NODE_DEBUG=execa` environment variable in the current process. | |
@default false | |
*/ | |
readonly verbose?: boolean; | |
}; | |
export type Options<EncodingType extends EncodingOption = DefaultEncodingOption> = { | |
/** | |
Write some input to the `stdin` of your binary. | |
If the input is a file, use the `inputFile` option instead. | |
*/ | |
readonly input?: string | Buffer | ReadableStream; | |
/** | |
Use a file as input to the the `stdin` of your binary. | |
If the input is not a file, use the `input` option instead. | |
*/ | |
readonly inputFile?: string; | |
} & CommonOptions<EncodingType>; | |
export type SyncOptions<EncodingType extends EncodingOption = DefaultEncodingOption> = { | |
/** | |
Write some input to the `stdin` of your binary. | |
If the input is a file, use the `inputFile` option instead. | |
*/ | |
readonly input?: string | Buffer; | |
/** | |
Use a file as input to the the `stdin` of your binary. | |
If the input is not a file, use the `input` option instead. | |
*/ | |
readonly inputFile?: string; | |
} & CommonOptions<EncodingType>; | |
export type NodeOptions<EncodingType extends EncodingOption = DefaultEncodingOption> = { | |
/** | |
The Node.js executable to use. | |
@default process.execPath | |
*/ | |
readonly nodePath?: string; | |
/** | |
List of [CLI options](https://nodejs.org/api/cli.html#cli_options) passed to the Node.js executable. | |
@default process.execArgv | |
*/ | |
readonly nodeOptions?: string[]; | |
} & Options<EncodingType>; | |
type StdoutStderrAll = string | Buffer | undefined; | |
export type ExecaReturnBase<StdoutStderrType extends StdoutStderrAll> = { | |
/** | |
The file and arguments that were run, for logging purposes. | |
This is not escaped and should not be executed directly as a process, including using `execa()` or `execaCommand()`. | |
*/ | |
command: string; | |
/** | |
Same as `command` but escaped. | |
This is meant to be copy and pasted into a shell, for debugging purposes. | |
Since the escaping is fairly basic, this should not be executed directly as a process, including using `execa()` or `execaCommand()`. | |
*/ | |
escapedCommand: string; | |
/** | |
The numeric exit code of the process that was run. | |
*/ | |
exitCode: number; | |
/** | |
The output of the process on stdout. | |
*/ | |
stdout: StdoutStderrType; | |
/** | |
The output of the process on stderr. | |
*/ | |
stderr: StdoutStderrType; | |
/** | |
Whether the process failed to run. | |
*/ | |
failed: boolean; | |
/** | |
Whether the process timed out. | |
*/ | |
timedOut: boolean; | |
/** | |
Whether the process was killed. | |
*/ | |
killed: boolean; | |
/** | |
The name of the signal that was used to terminate the process. For example, `SIGFPE`. | |
If a signal terminated the process, this property is defined and included in the error message. Otherwise it is `undefined`. | |
*/ | |
signal?: string; | |
/** | |
A human-friendly description of the signal that was used to terminate the process. For example, `Floating point arithmetic error`. | |
If a signal terminated the process, this property is defined and included in the error message. Otherwise it is `undefined`. It is also `undefined` when the signal is very uncommon which should seldomly happen. | |
*/ | |
signalDescription?: string; | |
/** | |
The `cwd` of the command if provided in the command options. Otherwise it is `process.cwd()`. | |
*/ | |
cwd: string; | |
}; | |
export type ExecaSyncReturnValue<StdoutStderrType extends StdoutStderrAll = string> = { | |
} & ExecaReturnBase<StdoutStderrType>; | |
/** | |
Result of a child process execution. On success this is a plain object. On failure this is also an `Error` instance. | |
The child process fails when: | |
- its exit code is not `0` | |
- it was killed with a signal | |
- timing out | |
- being canceled | |
- there's not enough memory or there are already too many child processes | |
*/ | |
export type ExecaReturnValue<StdoutStderrType extends StdoutStderrAll = string> = { | |
/** | |
The output of the process with `stdout` and `stderr` interleaved. | |
This is `undefined` if either: | |
- the `all` option is `false` (default value) | |
- `execaSync()` was used | |
*/ | |
all?: StdoutStderrType; | |
/** | |
Whether the process was canceled. | |
You can cancel the spawned process using the [`signal`](https://github.com/sindresorhus/execa#signal-1) option. | |
*/ | |
isCanceled: boolean; | |
} & ExecaSyncReturnValue<StdoutStderrType>; | |
export type ExecaSyncError<StdoutStderrType extends StdoutStderrAll = string> = { | |
/** | |
Error message when the child process failed to run. In addition to the underlying error message, it also contains some information related to why the child process errored. | |
The child process stderr then stdout are appended to the end, separated with newlines and not interleaved. | |
*/ | |
message: string; | |
/** | |
This is the same as the `message` property except it does not include the child process stdout/stderr. | |
*/ | |
shortMessage: string; | |
/** | |
Original error message. This is the same as the `message` property except it includes neither the child process stdout/stderr nor some additional information added by Execa. | |
This is `undefined` unless the child process exited due to an `error` event or a timeout. | |
*/ | |
originalMessage?: string; | |
} & Error & ExecaReturnBase<StdoutStderrType>; | |
export type ExecaError<StdoutStderrType extends StdoutStderrAll = string> = { | |
/** | |
The output of the process with `stdout` and `stderr` interleaved. | |
This is `undefined` if either: | |
- the `all` option is `false` (default value) | |
- `execaSync()` was used | |
*/ | |
all?: StdoutStderrType; | |
/** | |
Whether the process was canceled. | |
*/ | |
isCanceled: boolean; | |
} & ExecaSyncError<StdoutStderrType>; | |
export type KillOptions = { | |
/** | |
Milliseconds to wait for the child process to terminate before sending `SIGKILL`. | |
Can be disabled with `false`. | |
@default 5000 | |
*/ | |
forceKillAfterTimeout?: number | false; | |
}; | |
export type ExecaChildPromise<StdoutStderrType extends StdoutStderrAll> = { | |
/** | |
Stream combining/interleaving [`stdout`](https://nodejs.org/api/child_process.html#child_process_subprocess_stdout) and [`stderr`](https://nodejs.org/api/child_process.html#child_process_subprocess_stderr). | |
This is `undefined` if either: | |
- the `all` option is `false` (the default value) | |
- both `stdout` and `stderr` options are set to [`'inherit'`, `'ipc'`, `Stream` or `integer`](https://nodejs.org/dist/latest-v6.x/docs/api/child_process.html#child_process_options_stdio) | |
*/ | |
all?: ReadableStream; | |
catch<ResultType = never>( | |
onRejected?: (reason: ExecaError<StdoutStderrType>) => ResultType | PromiseLike<ResultType> | |
): Promise<ExecaReturnValue<StdoutStderrType> | ResultType>; | |
/** | |
Same as the original [`child_process#kill()`](https://nodejs.org/api/child_process.html#child_process_subprocess_kill_signal), except if `signal` is `SIGTERM` (the default value) and the child process is not terminated after 5 seconds, force it by sending `SIGKILL`. Note that this graceful termination does not work on Windows, because Windows [doesn't support signals](https://nodejs.org/api/process.html#process_signal_events) (`SIGKILL` and `SIGTERM` has the same effect of force-killing the process immediately.) If you want to achieve graceful termination on Windows, you have to use other means, such as [`taskkill`](https://github.com/sindresorhus/taskkill). | |
*/ | |
kill(signal?: string, options?: KillOptions): void; | |
/** | |
Similar to [`childProcess.kill()`](https://nodejs.org/api/child_process.html#child_process_subprocess_kill_signal). This used to be preferred when cancelling the child process execution as the error is more descriptive and [`childProcessResult.isCanceled`](#iscanceled) is set to `true`. But now this is deprecated and you should either use `.kill()` or the `signal` option when creating the child process. | |
*/ | |
cancel(): void; | |
/** | |
[Pipe](https://nodejs.org/api/stream.html#readablepipedestination-options) the child process's `stdout` to `target`, which can be: | |
- Another `execa()` return value | |
- A writable stream | |
- A file path string | |
If the `target` is another `execa()` return value, it is returned. Otherwise, the original `execa()` return value is returned. This allows chaining `pipeStdout()` then `await`ing the final result. | |
The `stdout` option] must be kept as `pipe`, its default value. | |
*/ | |
pipeStdout?<Target extends ExecaChildPromise<StdoutStderrAll>>(target: Target): Target; | |
pipeStdout?(target: WritableStream | string): ExecaChildProcess<StdoutStderrType>; | |
/** | |
Like `pipeStdout()` but piping the child process's `stderr` instead. | |
The `stderr` option must be kept as `pipe`, its default value. | |
*/ | |
pipeStderr?<Target extends ExecaChildPromise<StdoutStderrAll>>(target: Target): Target; | |
pipeStderr?(target: WritableStream | string): ExecaChildProcess<StdoutStderrType>; | |
/** | |
Combines both `pipeStdout()` and `pipeStderr()`. | |
Either the `stdout` option or the `stderr` option must be kept as `pipe`, their default value. Also, the `all` option must be set to `true`. | |
*/ | |
pipeAll?<Target extends ExecaChildPromise<StdoutStderrAll>>(target: Target): Target; | |
pipeAll?(target: WritableStream | string): ExecaChildProcess<StdoutStderrType>; | |
}; | |
export type ExecaChildProcess<StdoutStderrType extends StdoutStderrAll = string> = ChildProcess & | |
ExecaChildPromise<StdoutStderrType> & | |
Promise<ExecaReturnValue<StdoutStderrType>>; | |
/** | |
Executes a command using `file ...arguments`. `arguments` are specified as an array of strings. Returns a `childProcess`. | |
Arguments are automatically escaped. They can contain any character, including spaces. | |
This is the preferred method when executing single commands. | |
@param file - The program/script to execute. | |
@param arguments - Arguments to pass to `file` on execution. | |
@returns An `ExecaChildProcess` that is both: | |
- a `Promise` resolving or rejecting with a `childProcessResult`. | |
- a [`child_process` instance](https://nodejs.org/api/child_process.html#child_process_class_childprocess) with some additional methods and properties. | |
@throws A `childProcessResult` error | |
@example <caption>Promise interface</caption> | |
``` | |
import {execa} from 'execa'; | |
const {stdout} = await execa('echo', ['unicorns']); | |
console.log(stdout); | |
//=> 'unicorns' | |
``` | |
@example <caption>Redirect output to a file</caption> | |
``` | |
import {execa} from 'execa'; | |
// Similar to `echo unicorns > stdout.txt` in Bash | |
await execa('echo', ['unicorns']).pipeStdout('stdout.txt'); | |
// Similar to `echo unicorns 2> stdout.txt` in Bash | |
await execa('echo', ['unicorns']).pipeStderr('stderr.txt'); | |
// Similar to `echo unicorns &> stdout.txt` in Bash | |
await execa('echo', ['unicorns'], {all: true}).pipeAll('all.txt'); | |
``` | |
@example <caption>Redirect input from a file</caption> | |
``` | |
import {execa} from 'execa'; | |
// Similar to `cat < stdin.txt` in Bash | |
const {stdout} = await execa('cat', {inputFile: 'stdin.txt'}); | |
console.log(stdout); | |
//=> 'unicorns' | |
``` | |
@example <caption>Save and pipe output from a child process</caption> | |
``` | |
import {execa} from 'execa'; | |
const {stdout} = await execa('echo', ['unicorns']).pipeStdout(process.stdout); | |
// Prints `unicorns` | |
console.log(stdout); | |
// Also returns 'unicorns' | |
``` | |
@example <caption>Pipe multiple processes</caption> | |
``` | |
import {execa} from 'execa'; | |
// Similar to `echo unicorns | cat` in Bash | |
const {stdout} = await execa('echo', ['unicorns']).pipeStdout(execa('cat')); | |
console.log(stdout); | |
//=> 'unicorns' | |
``` | |
@example <caption>Handling errors</caption> | |
``` | |
import {execa} from 'execa'; | |
// Catching an error | |
try { | |
await execa('unknown', ['command']); | |
} catch (error) { | |
console.log(error); | |
/* | |
{ | |
message: 'Command failed with ENOENT: unknown command spawn unknown ENOENT', | |
errno: -2, | |
code: 'ENOENT', | |
syscall: 'spawn unknown', | |
path: 'unknown', | |
spawnargs: ['command'], | |
originalMessage: 'spawn unknown ENOENT', | |
shortMessage: 'Command failed with ENOENT: unknown command spawn unknown ENOENT', | |
command: 'unknown command', | |
escapedCommand: 'unknown command', | |
stdout: '', | |
stderr: '', | |
failed: true, | |
timedOut: false, | |
isCanceled: false, | |
killed: false, | |
cwd: '/path/to/cwd' | |
} | |
\*\/ | |
} | |
``` | |
@example <caption>Graceful termination</caption> | |
``` | |
const subprocess = execa('node'); | |
setTimeout(() => { | |
subprocess.kill('SIGTERM', { | |
forceKillAfterTimeout: 2000 | |
}); | |
}, 1000); | |
``` | |
*/ | |
export function execa( | |
file: string, | |
arguments?: readonly string[], | |
options?: Options | |
): ExecaChildProcess; | |
export function execa( | |
file: string, | |
arguments?: readonly string[], | |
options?: Options<BufferEncodingOption> | |
): ExecaChildProcess<Buffer>; | |
export function execa(file: string, options?: Options): ExecaChildProcess; | |
export function execa(file: string, options?: Options<BufferEncodingOption>): ExecaChildProcess<Buffer>; | |
/** | |
Same as `execa()` but synchronous. | |
@param file - The program/script to execute. | |
@param arguments - Arguments to pass to `file` on execution. | |
@returns A `childProcessResult` object | |
@throws A `childProcessResult` error | |
@example <caption>Promise interface</caption> | |
``` | |
import {execa} from 'execa'; | |
const {stdout} = execaSync('echo', ['unicorns']); | |
console.log(stdout); | |
//=> 'unicorns' | |
``` | |
@example <caption>Redirect input from a file</caption> | |
``` | |
import {execa} from 'execa'; | |
// Similar to `cat < stdin.txt` in Bash | |
const {stdout} = execaSync('cat', {inputFile: 'stdin.txt'}); | |
console.log(stdout); | |
//=> 'unicorns' | |
``` | |
@example <caption>Handling errors</caption> | |
``` | |
import {execa} from 'execa'; | |
// Catching an error | |
try { | |
execaSync('unknown', ['command']); | |
} catch (error) { | |
console.log(error); | |
/* | |
{ | |
message: 'Command failed with ENOENT: unknown command spawnSync unknown ENOENT', | |
errno: -2, | |
code: 'ENOENT', | |
syscall: 'spawnSync unknown', | |
path: 'unknown', | |
spawnargs: ['command'], | |
originalMessage: 'spawnSync unknown ENOENT', | |
shortMessage: 'Command failed with ENOENT: unknown command spawnSync unknown ENOENT', | |
command: 'unknown command', | |
escapedCommand: 'unknown command', | |
stdout: '', | |
stderr: '', | |
failed: true, | |
timedOut: false, | |
isCanceled: false, | |
killed: false, | |
cwd: '/path/to/cwd' | |
} | |
\*\/ | |
} | |
``` | |
*/ | |
export function execaSync( | |
file: string, | |
arguments?: readonly string[], | |
options?: SyncOptions | |
): ExecaSyncReturnValue; | |
export function execaSync( | |
file: string, | |
arguments?: readonly string[], | |
options?: SyncOptions<BufferEncodingOption> | |
): ExecaSyncReturnValue<Buffer>; | |
export function execaSync(file: string, options?: SyncOptions): ExecaSyncReturnValue; | |
export function execaSync( | |
file: string, | |
options?: SyncOptions<BufferEncodingOption> | |
): ExecaSyncReturnValue<Buffer>; | |
/** | |
Executes a command. The `command` string includes both the `file` and its `arguments`. Returns a `childProcess`. | |
Arguments are automatically escaped. They can contain any character, but spaces must be escaped with a backslash like `execaCommand('echo has\\ space')`. | |
This is the preferred method when executing a user-supplied `command` string, such as in a REPL. | |
@param command - The program/script to execute and its arguments. | |
@returns An `ExecaChildProcess` that is both: | |
- a `Promise` resolving or rejecting with a `childProcessResult`. | |
- a [`child_process` instance](https://nodejs.org/api/child_process.html#child_process_class_childprocess) with some additional methods and properties. | |
@throws A `childProcessResult` error | |
@example | |
``` | |
import {execaCommand} from 'execa'; | |
const {stdout} = await execaCommand('echo unicorns'); | |
console.log(stdout); | |
//=> 'unicorns' | |
``` | |
*/ | |
export function execaCommand(command: string, options?: Options): ExecaChildProcess; | |
export function execaCommand(command: string, options?: Options<BufferEncodingOption>): ExecaChildProcess<Buffer>; | |
/** | |
Same as `execaCommand()` but synchronous. | |
@param command - The program/script to execute and its arguments. | |
@returns A `childProcessResult` object | |
@throws A `childProcessResult` error | |
@example | |
``` | |
import {execaCommandSync} from 'execa'; | |
const {stdout} = execaCommandSync('echo unicorns'); | |
console.log(stdout); | |
//=> 'unicorns' | |
``` | |
*/ | |
export function execaCommandSync(command: string, options?: SyncOptions): ExecaSyncReturnValue; | |
export function execaCommandSync(command: string, options?: SyncOptions<BufferEncodingOption>): ExecaSyncReturnValue<Buffer>; | |
type TemplateExpression = | |
| string | |
| number | |
| ExecaReturnValue<string | Buffer> | |
| ExecaSyncReturnValue<string | Buffer> | |
| Array<string | number | ExecaReturnValue<string | Buffer> | ExecaSyncReturnValue<string | Buffer>>; | |
type Execa$<StdoutStderrType extends StdoutStderrAll = string> = { | |
/** | |
Returns a new instance of `$` but with different default `options`. Consecutive calls are merged to previous ones. | |
This can be used to either: | |
- Set options for a specific command: `` $(options)`command` `` | |
- Share options for multiple commands: `` const $$ = $(options); $$`command`; $$`otherCommand` `` | |
@param options - Options to set | |
@returns A new instance of `$` with those `options` set | |
@example | |
``` | |
import {$} from 'execa'; | |
const $$ = $({stdio: 'inherit'}); | |
await $$`echo unicorns`; | |
//=> 'unicorns' | |
await $$`echo rainbows`; | |
//=> 'rainbows' | |
``` | |
*/ | |
(options: Options<undefined>): Execa$<StdoutStderrType>; | |
(options: Options): Execa$; | |
(options: Options<BufferEncodingOption>): Execa$<Buffer>; | |
( | |
templates: TemplateStringsArray, | |
...expressions: TemplateExpression[] | |
): ExecaChildProcess<StdoutStderrType>; | |
/** | |
Same as $\`command\` but synchronous. | |
@returns A `childProcessResult` object | |
@throws A `childProcessResult` error | |
@example <caption>Basic</caption> | |
``` | |
import {$} from 'execa'; | |
const branch = $.sync`git branch --show-current`; | |
$.sync`dep deploy --branch=${branch}`; | |
``` | |
@example <caption>Multiple arguments</caption> | |
``` | |
import {$} from 'execa'; | |
const args = ['unicorns', '&', 'rainbows!']; | |
const {stdout} = $.sync`echo ${args}`; | |
console.log(stdout); | |
//=> 'unicorns & rainbows!' | |
``` | |
@example <caption>With options</caption> | |
``` | |
import {$} from 'execa'; | |
$.sync({stdio: 'inherit'})`echo unicorns`; | |
//=> 'unicorns' | |
``` | |
@example <caption>Shared options</caption> | |
``` | |
import {$} from 'execa'; | |
const $$ = $({stdio: 'inherit'}); | |
$$.sync`echo unicorns`; | |
//=> 'unicorns' | |
$$.sync`echo rainbows`; | |
//=> 'rainbows' | |
``` | |
*/ | |
sync( | |
templates: TemplateStringsArray, | |
...expressions: TemplateExpression[] | |
): ExecaSyncReturnValue<StdoutStderrType>; | |
}; | |
/** | |
Executes a command. The `command` string includes both the `file` and its `arguments`. Returns a `childProcess`. | |
Arguments are automatically escaped. They can contain any character, but spaces must use `${}` like `` $`echo ${'has space'}` ``. | |
This is the preferred method when executing multiple commands in a script file. | |
The `command` string can inject any `${value}` with the following types: string, number, `childProcess` or an array of those types. For example: `` $`echo one ${'two'} ${3} ${['four', 'five']}` ``. For `${childProcess}`, the process's `stdout` is used. | |
@returns An `ExecaChildProcess` that is both: | |
- a `Promise` resolving or rejecting with a `childProcessResult`. | |
- a [`child_process` instance](https://nodejs.org/api/child_process.html#child_process_class_childprocess) with some additional methods and properties. | |
@throws A `childProcessResult` error | |
@example <caption>Basic</caption> | |
``` | |
import {$} from 'execa'; | |
const branch = await $`git branch --show-current`; | |
await $`dep deploy --branch=${branch}`; | |
``` | |
@example <caption>Multiple arguments</caption> | |
``` | |
import {$} from 'execa'; | |
const args = ['unicorns', '&', 'rainbows!']; | |
const {stdout} = await $`echo ${args}`; | |
console.log(stdout); | |
//=> 'unicorns & rainbows!' | |
``` | |
@example <caption>With options</caption> | |
``` | |
import {$} from 'execa'; | |
await $({stdio: 'inherit'})`echo unicorns`; | |
//=> 'unicorns' | |
``` | |
@example <caption>Shared options</caption> | |
``` | |
import {$} from 'execa'; | |
const $$ = $({stdio: 'inherit'}); | |
await $$`echo unicorns`; | |
//=> 'unicorns' | |
await $$`echo rainbows`; | |
//=> 'rainbows' | |
``` | |
*/ | |
export const $: Execa$; | |
/** | |
Execute a Node.js script as a child process. | |
Arguments are automatically escaped. They can contain any character, including spaces. | |
This is the preferred method when executing Node.js files. | |
Like [`child_process#fork()`](https://nodejs.org/api/child_process.html#child_process_child_process_fork_modulepath_args_options): | |
- the current Node version and options are used. This can be overridden using the `nodePath` and `nodeOptions` options. | |
- the `shell` option cannot be used | |
- an extra channel [`ipc`](https://nodejs.org/api/child_process.html#child_process_options_stdio) is passed to `stdio` | |
@param scriptPath - Node.js script to execute. | |
@param arguments - Arguments to pass to `scriptPath` on execution. | |
@returns An `ExecaChildProcess` that is both: | |
- a `Promise` resolving or rejecting with a `childProcessResult`. | |
- a [`child_process` instance](https://nodejs.org/api/child_process.html#child_process_class_childprocess) with some additional methods and properties. | |
@throws A `childProcessResult` error | |
@example | |
``` | |
import {execa} from 'execa'; | |
await execaNode('scriptPath', ['argument']); | |
``` | |
*/ | |
export function execaNode( | |
scriptPath: string, | |
arguments?: readonly string[], | |
options?: NodeOptions | |
): ExecaChildProcess; | |
export function execaNode( | |
scriptPath: string, | |
arguments?: readonly string[], | |
options?: NodeOptions<BufferEncodingOption> | |
): ExecaChildProcess<Buffer>; | |
export function execaNode(scriptPath: string, options?: NodeOptions): ExecaChildProcess; | |
export function execaNode(scriptPath: string, options?: NodeOptions<BufferEncodingOption>): ExecaChildProcess<Buffer>; | |