index.js

#!/usr/bin/env node

'use strict';

var fs = require('fs'),
	path = require('path'),
	useref = require('node-useref'),
	async = require('async'),
	annotater = require('ng-annotate'),
	minifier = require('uglify-js');

// Temporary place
// Loop should start here
var workingDir = 'www';

var rootdir = process.argv[2];

if (rootdir) {

	var platforms = (process.env.CORDOVA_PLATFORMS ? process.env.CORDOVA_PLATFORMS.split(',') : []);

	for(var x=0; x<platforms.length; x++) {
		try {
			var platform = platforms[x].trim().toLowerCase();
			workingDir = platform === 'android' ?
				path.join('platforms', platform, 'assets', 'www') :
				path.join('platforms', platform, 'www');


			console.log('Reading index.html for', platform);

			var result = useref(fread(djoin('index.html'))),
				resources = result[1].js;

			console.log('Processing index.html');
			fs.writeFileSync(djoin('index.html'), result[0]);

			for (var filename in resources) {

				// Get updated array of assets
				var assets = prepareAssetsLinks(resources[filename].assets);

				// Check if not vendor
				// todo: parameterize this limitation
				if (filename === 'app.js') {

					// Annotating in parallel
					console.log('Annotaing application\'s sources');
					async.each(assets, annotateFile, function (err) {
						if (err) {
							console.error(err);
						}

						console.log('Minifying application\'s sources');
						// todo: implement parametric callback
						fs.writeFile(djoin(filename), minifier.minify(assets).code, function (err) {
							if (err)
								console.error(err);

							console.log('Removing sources folder');
							deleteFolderRecursive(djoin('js'));
						});
					})
				} else {
					console.log('Minifying vendor sources');
					// todo: implement parametric callback
					fs.writeFile(djoin(filename), minifier.minify(assets).code, function (err) {
						if (err)
							console.error(err);

						console.log('Removing sources folder');
						deleteFolderRecursive(djoin('lib'));
					});
				}
			}
		} catch(e) {
			process.stdout.write(e);
		}
	}
}




// todo: replace working dir here
function djoin(p) {
	return path.normalize(path.join(workingDir, p));
}
function fread(f) {
	return fs.readFileSync(f, {encoding: 'utf-8'});
}
function prepareAssetsLinks(array) {
	var result = [];

	for (var i = 0; i < array.length; i++)
		result.push(djoin(array[i]))

	return result;
}

function annotateFile(item, cb) {

	// Annotating file
	var res = annotater(fread(item) + '"ngInject";', {
		add: true,
		single_quotes: true
	});

	// Overwriting original file and removing ngInject
	fs.writeFile(item, res.src.replace('"ngInject";', ''), function (err) {
		if (err) cb(err);
		else cb()
	});
}

function deleteFolderRecursive(path) {
	if (fs.existsSync(path)) {
		fs.readdirSync(path).forEach(function (file, index) {
			var curPath = path + "/" + file;
			if (fs.lstatSync(curPath).isDirectory()) { // recurse
				deleteFolderRecursive(curPath);
			} else { // delete file
				fs.unlinkSync(curPath);
			}
		});
		fs.rmdirSync(path);
	}
}