A tiny wrapper around "spawn" for executing a command efficiently and conveniently.
It supports all options that child_process.spawn itself supports.
npm install --save nanoexecimport exec from 'nanoexec';
// Execute a command successfully, directly
const result = await exec ( 'echo', ['example'] );
result.process; // => ChildProcess
result.ok; // => true, because the exit code is 0
result.code; // => 0
result.stderr; // => <Buffer >
result.stdout; // => <Buffer 65 78 61 6d 70 6c 65 0a>
result.stdout.toString (); // => 'example\n'
// Execute a command successfully, going through the shell
const result = await exec ( 'echo "example"', { shell: true } );
result.process; // => ChildProcess
result.ok; // => true, because the exit code is 0
result.code; // => 0
result.stderr; // => <Buffer >
result.stdout; // => <Buffer 65 78 61 6d 70 6c 65 0a>
result.stdout.toString (); // => 'example\n'
// Execute a command successfully, but with a non-zero exit code
const result = await exec ( 'node', ['-e', 'process.exit(2)'] );
result.process; // => ChildProcess
result.ok; // => false, because the exit code is not 0
result.code; // => 2
result.stderr; // => <Buffer >
result.stdout; // => <Buffer >
// Execute a command that throws
await exec ( 'unknowncmd' ); // => throws: Error ( 'spawn unknowncmd ENOENT' )
// Execute a command, read the subprocess immediately, and await the rest
const result = exec ( 'echo', ['example'] );
result.process; // => ChildProcess
await result.ok; // => true, because the exit code is 0
await result.code; // => 0
await result.stderr; // => <Buffer >
await result.stdout; // => <Buffer 65 78 61 6d 70 6c 65 0a>MIT © Fabio Spampinato