nodejs在spawn中执行npm报错 [Error: spawn ENOENT]” errors

描述： 上代码

var ps = require('child_process').spawn("npm", ['install'], {
stdio: 'inherit',
cwd: srcPath
});

ps.on('error', function(err) {
console.log(err);
});

ps.on('exit', function (err) {
console.log('exit');
});

执行报[Error: spawn ENOENT]

原因，windows下npm执行名不同

解决方案

var ps = require('child_process').spawn(process.platform === "win32" ? "npm.cmd" : "npm", ['install'], {
stdio: 'inherit',
cwd: srcPath
});

参考：http://stackoverflow.com/questions/17516772/using-nodejss-spawn-causes-unknown-option-and-error-spawn-enoent-err