comandante
spawn() that returns a duplex stream and emits errors with stderr data on non-zero exit codes
$ npm install comandante
SYNC missed versions from
official npm registry.
commandante
Spawn commands returning a duplex stream. Emit stderr when the command exits with a non-zero code.
example
var run = require('commandante');
run('git', [ 'log' ]).pipe(process.stdout);
in a git directory we get:
$ node example/log.js | head -n3
commit ae5045cce4980a87b7151cfe91bc5889951aae39
Author: James Halliday <mail@substack.net>
Date: Tue Oct 2 09:08:18 2012 -0700
in a non-git directory we get:
events.js:66
throw arguments[1]; // Unhandled 'error' event
^
Error: non-zero exit code 128: fatal: Not a git repository (or any of the parent directories): .git
at ChildProcess.<anonymous> (/home/substack/projects/comandante/index.js:19:27)
at ChildProcess.EventEmitter.emit (events.js:91:17)
at maybeClose (child_process.js:634:16)
at Socket.ChildProcess.spawn.stdin (child_process.js:805:11)
at Socket.EventEmitter.emit (events.js:88:17)
at Socket._destroy.destroyed (net.js:358:10)
at process.startup.processNextTick.process._tickCallback (node.js:244:9)
methods
var commandante = require('commandante')
commandante(cmd, args, opts={})
Spawn a new process like require('child_process').spawn(), except the return value is a duplex stream combiningstdoutandstdin`.
If the process exits with a non-zero status, emit an 'error' event with the
stderr data and the code in an informative message.
If opts.showCommand is not false, show the actual command in the informative
error message. If you are running a command with passwords in the command
arguments make sure to set showCommand to false.
install
With npm do:
npm install comandante
license
MIT
Current Tags
- 0.0.1 ... latest (12 years ago)
substack