shelljs.exec
Replacement for shelljs' slow exec method - benchmarked 20x faster
Introduction
shelljs is FAST but its exec method is SLOW
This module offers a shelljs.exec like interface and is a zero-dependency module
Usage
This module takes 2 arguments, the command to execute and an options object
var exec = require('shelljs.exec')
var cmdObj = exec('echo hello', {silent: true})
Continuing from the code above, the resulting JSON looks like:
expect(cmdObj).to.eql({
error: null,
stdout: 'hello\n',
stderr: '',
code: 0,
ok: true
})
Options object
Available options:
-
silent
: Do not echo any output to console, defaults to false
-
and any option available to Node.js' child_process.execSync
When the stdio
option of child_process.execSync is provided, it overrides silent
Benchmarks
Logs for benchmarks may be viewed here and specs are here
Generally speaking, on Linux shelljs.exec (this module) is 20 times faster and on Windows 5 times faster than shelljs' exec method.
However, shelljs supported commands, where available, are much faster than both. Use this module where no equivalent shelljs supported command is available.
These tables compare average command execution times based on 1000 test runs:
Linux (Travis CI) Node v6
Windows (GIT bash) Node v6.10.0
Limitations
Author says
But as the days of Noah were, so also will the coming of the Son of Man be. 38 For as in the days before the flood, they were eating and drinking, marrying and giving in marriage, until the day that Noah entered the ark, 39 and did not know until the flood came and took them all away, so also will the coming of the Son of Man be.
Matthew 24:37-39