add build

node_modules/minifyfromhtml/minifyfromhtml.js

@@ -0,0 +1,135 @@
+let argv = require('minimist')(process.argv.slice(2));
+let fs = require('fs');
+let path = require('path');
+let jsdom = require('jsdom');
+let JSDOM = jsdom.JSDOM;
+let minify = require('minify');
+
+let usage = `usage:
+	minifyfromhtml --js=<output js file> --css=<output css file> --exclude=<exclude files> < <input file>
+
+	the minification process uses minify under the hood.
+	http://coderaiser.github.io/minify/
+
+	example:
+	minifyfromhtml --js=dist/mywidget.min.js --css=dist/mywidget.min.css --exclude=js/jquery.js < example/index.html
+`;
+
+if (argv.h) {
+	console.log(usage);
+	return;
+}
+
+if (!argv.js || !argv.css) {
+	console.log(usage);
+	return;
+}
+
+var excludeFiles = argv.exclude || [];
+if (typeof(excludeFiles) === 'string') {
+	excludeFiles = [excludeFiles];
+}
+
+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);
+			}
+		}
+		return scripts;
+	}
+
+	//process scripts
+	let scripts = getTagAttrs(dom, 'script', 'src');
+
+	//remove exluded
+	excludeFiles.forEach(i => {
+		var index = scripts.indexOf(i);
+		if (index !== -1) {
+			scripts.splice(index, 1);
+		}
+	});
+
+	let processedScripts = {};
+	for (let i = 0; i < scripts.length; i++) {
+		let script = scripts[i];
+
+		minify(script, 'stream')
+		.then(function(data) {
+			processedScripts[script] = data;
+
+			if (Object.keys(processedScripts).length === scripts.length) {
+				//write scripts
+
+				//clear out dist file
+				fs.writeFileSync(argv.js, '');
+
+				//write files
+				for (let i = 0; i < scripts.length; i++) {
+					const script = scripts[i];
+
+					console.log(script + ' -> ' + argv.js);
+					fs.appendFileSync(argv.js, processedScripts[script] + '\n');
+				}
+			}
+		});
+	}
+
+
+	//process css
+	let styles = getTagAttrs(dom, 'link', 'href');
+
+	//remove exluded
+	excludeFiles.forEach(i => {
+		var index = styles.indexOf(i);
+		if (index !== -1) {
+			styles.splice(index, 1);
+		}
+	});
+
+	let processedStyles = {};
+	fs.writeFileSync(argv.css, '');
+	for (let i = 0; i < styles.length; i++) {
+		let style = styles[i];
+
+		minify(style, 'stream')
+		.then(function(data) {
+			processedStyles[style] = data;
+
+			if (Object.keys(processedStyles).length === styles.length) {
+				//write styles
+
+				//clear out dist file
+				fs.writeFileSync(argv.css, '');
+
+				//write files
+				for (let i = 0; i < styles.length; i++) {
+					const style = styles[i];
+
+					console.log(style + ' -> ' + argv.css);
+					fs.appendFileSync(argv.css, processedStyles[style] + '\n');
+				}
+			}
+		});
+	}
+});