Created
November 10, 2015 09:58
-
-
Save pegasuskim/186fbd614e6a7653a7a2 to your computer and use it in GitHub Desktop.
node.js shell command
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// execute a single shell command where "cmd" is a string | |
exports.exec = function(cmd, cb){ | |
// this would be way easier on a shell/bash script :P | |
var child_process = require('child_process'); | |
var parts = cmd.split(/\s+/g); | |
var p = child_process.spawn(parts[0], parts.slice(1), {stdio: 'inherit'}); | |
p.on('exit', function(code){ | |
var err = null; | |
if (code) { | |
err = new Error('command "'+ cmd +'" exited with wrong status code "'+ code +'"'); | |
err.code = code; | |
err.cmd = cmd; | |
} | |
if (cb) cb(err); | |
}); | |
}; | |
// execute multiple commands in series | |
// this could be replaced by any flow control lib | |
exports.series = function(cmds, cb){ | |
var execNext = function(){ | |
exports.exec(cmds.shift(), function(err){ | |
if (err) { | |
cb(err); | |
} else { | |
if (cmds.length) execNext(); | |
else cb(null); | |
} | |
}); | |
}; | |
execNext(); | |
}; |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment