add some babel stuff

minifyfromhtml.js

@@ -1,34 +1,52 @@
-var argv = require('minimist')(process.argv.slice(2));
-var jsdom = require("jsdom");
-var {JSDOM} = jsdom;
+let argv = require('minimist')(process.argv.slice(2));
+let jsdom = require('jsdom');
+let JSDOM = jsdom.JSDOM;
+let babel = require("babel-core");
 
-var usage = `usage:
-	minifyfromhtml < <input file>
+let usage = `usage:
+	minifyfromhtml -o <output dir> < <input file>
+
+	the minification process uses babel under the hood, so you can modify
+	the minification with a .babelrc file.
+
+	example:
+	minifyfromhtml -o dist < example/index.html
 `;
 
-var inputFile = argv.i;
+let inputFile = argv.i;
 
 if (argv.h) {
 	console.log(usage);
 }
 
-//read stdin
-var html = '';
-process.stdin.resume();
-process.stdin.setEncoding('utf-8');
-process.stdin.on('data', function(buf) {
-	html += buf;
-});
-process.stdin.on('end', function() {
-	var dom = new JSDOM(html);
-	var getScripts = function(dom) {
-		var scripts = [];
+let execute = function(command, callback) {
+	exec(command, function(error, stdout, stderr) {
+		callback(stdout);
+	});
+};
 
-		var document = dom.window.document;
-		var scriptTags = document.getElementsByTagName('script');
-		var i = scriptTags.length;
-		while (i--) {
-			var src = scriptTags[i].getAttribute('src');
+let readStdin = function(cb) {
+	let stdin = '';
+	process.stdin.resume();
+	process.stdin.setEncoding('utf-8');
+	process.stdin.on('data', function(buf) {
+		stdin += buf;
+	});
+	process.stdin.on('end', function() {
+		cb(stdin);
+	});
+}
+
+readStdin(function(html) {
+	let dom = new JSDOM(html);
+	let getTagAttrs = function(dom, tag, attr) {
+		let scripts = [];
+
+		let document = dom.window.document;
+		let scriptTags = document.getElementsByTagName(tag);
+		let i = scriptTags.length;
+		for (let i = 0; i < scriptTags.length; i++) {
+			let src = scriptTags[i].getAttribute(attr);
 			if (src) {
 				scripts.push(src);
 			}
@@ -36,5 +54,19 @@ process.stdin.on('end', function() {
 		return scripts;
 	}
 
-	console.log(getScripts(dom));
+	let scripts = getTagAttrs(dom, 'script', 'src');
+	let processedScripts = {};
+	for (let i = 0; i < scripts.length; i++) {
+		let script = scripts[i];
+
+		babel.transformFile(script, {}, function(err, result) {
+			if (err) {
+				console.error(err);
+				return;
+			}
+			processedScripts[script] = result.code;
+		});
+	}
+
+	console.log(getTagAttrs(dom, 'link', 'href'));
 });