NpmInstallRecursive

NpmInstallRecursive.js

var fs = require('fs');
var path = require('path');
var exec = require('child_process').exec;

var walk = function(dir, done) {
    var results = [];
    fs.readdir(dir, function(err, list) {
        if (err) return done(err);
        var pending = list.length;
        if (!pending) return done(null, results);
        list.forEach(function(file) {
            file = path.resolve(dir, file);
            fs.stat(file, function(err, stat) {
                if (stat && stat.isDirectory()) {
                    walk(file, function(err, res) {
                        results = results.concat(res);
                        if (!--pending) done(null, results);
                    });
                } else {
                    var fileName = path.basename(file)
                    var currentDir = path.dirname(file)
                    if(fileName === 'package.json' && file.indexOf('node_modules') === -1) {
                        results.push(currentDir);
                    }
                    if (!--pending) done(null, results);
                }
            });
        });
    });
};

console.log('Installing node modules under ' + __dirname)
walk(__dirname, function (err, files) {
    if(!err) {
        installNpm(files)
    } else {
        console.error(err)
    }
})

var installNpm = function(pathsToInstall) {
    if (pathsToInstall.length > 0) {
        pathsToInstall.forEach(function (path) {
            cmd = 'Installing packages in ' + path
            console.log(cmd)
            exec('npm install', {cwd: path}, function (error, stdout, stderr) {
            });
        })
    } else {
        console.error('No package.json found')
    }
}