mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
2.5 KiB
101 lines
2.5 KiB
var inherits = require('sys').inherits;
|
|
var EventEmitter = require('events').EventEmitter;
|
|
var Stream = require('net').Stream;
|
|
var InternalChildProcess = process.binding('child_process').ChildProcess;
|
|
|
|
|
|
var spawn = exports.spawn = function (path, args, env) {
|
|
var child = new ChildProcess();
|
|
child.spawn(path, args, env);
|
|
return child;
|
|
};
|
|
|
|
|
|
exports.exec = function (command, callback) {
|
|
var child = spawn("/bin/sh", ["-c", command]);
|
|
var stdout = "";
|
|
var stderr = "";
|
|
|
|
child.stdout.setEncoding('utf8');
|
|
child.stdout.addListener("data", function (chunk) { stdout += chunk; });
|
|
|
|
child.stderr.setEncoding('utf8');
|
|
child.stderr.addListener("data", function (chunk) { stderr += chunk; });
|
|
|
|
child.addListener("exit", function (code) {
|
|
if (code == 0) {
|
|
if (callback) callback(null, stdout, stderr);
|
|
} else {
|
|
var e = new Error("Command failed: " + stderr);
|
|
e.code = code;
|
|
if (callback) callback(e, stdout, stderr);
|
|
}
|
|
});
|
|
};
|
|
|
|
|
|
function ChildProcess () {
|
|
process.EventEmitter.call(this);
|
|
|
|
var self = this;
|
|
|
|
var gotCHLD = false;
|
|
var exitCode;
|
|
var internal = this._internal = new InternalChildProcess();
|
|
|
|
var stdin = this.stdin = new Stream();
|
|
var stdout = this.stdout = new Stream();
|
|
var stderr = this.stderr = new Stream();
|
|
|
|
stderr.onend = stdout.onend = function () {
|
|
if (gotCHLD && !stdout.readable && !stderr.readable) {
|
|
self.emit('exit', exitCode);
|
|
}
|
|
};
|
|
|
|
internal.onexit = function (code) {
|
|
gotCHLD = true;
|
|
exitCode = code;
|
|
stdin.end();
|
|
if (!stdout.readable && !stderr.readable) {
|
|
self.emit('exit', exitCode);
|
|
}
|
|
};
|
|
|
|
this.__defineGetter__('pid', function () { return internal.pid; });
|
|
}
|
|
inherits(ChildProcess, EventEmitter);
|
|
|
|
|
|
ChildProcess.prototype.kill = function (sig) {
|
|
return this._internal.kill(sig);
|
|
};
|
|
|
|
|
|
ChildProcess.prototype.spawn = function (path, args, env) {
|
|
args = args || [];
|
|
env = env || process.env;
|
|
var envPairs = [];
|
|
var keys = Object.keys(env);
|
|
for (var index = 0, keysLength = keys.length; index < keysLength; index++) {
|
|
var key = keys[index];
|
|
envPairs.push(key + "=" + env[key]);
|
|
}
|
|
|
|
var fds = this._internal.spawn(path, args, envPairs);
|
|
|
|
this.stdin.open(fds[0]);
|
|
this.stdin.writable = true;
|
|
this.stdin.readable = false;
|
|
|
|
this.stdout.open(fds[1]);
|
|
this.stdout.writable = false;
|
|
this.stdout.readable = true;
|
|
this.stdout.resume();
|
|
|
|
this.stderr.open(fds[2]);
|
|
this.stderr.writable = false;
|
|
this.stderr.readable = true;
|
|
this.stderr.resume();
|
|
};
|
|
|
|
|