animated output - fixes sindresorhus#1

cli.js

@@ -2,26 +2,65 @@
 'use strict';
 var meow = require('meow');
 var speedtest = require('speedtest-net');
+var updateNotifier = require('update-notifier');
 var roundTo = require('round-to');
 var chalk = require('chalk');
+var logUpdate = require('log-update');
+var elegantSpinner = require('elegant-spinner');
 
-meow({
+var cli = meow({
 	help: [
 		'Usage',
 		'  $ speed-test'
 	]
 });
 
-speedtest.visual({maxTime: 20000}, function (err, res) {
-	if (err) {
-		console.error(err);
-		process.exit(1);
-	}
+updateNotifier({pkg: cli.pkg}).notify();
 
-	console.log([
+var stats = {
+	ping: '',
+	download: '',
+	upload: ''
+};
+
+var state = 'ping';
+var frame = elegantSpinner();
+
+function getSpinner(x) {
+	return state === x ? chalk.cyan.dim(frame()) : '';
+}
+
+function render() {
+	logUpdate([
 		'',
-		'      Ping:  ' + chalk.cyan(res.server.ping + chalk.dim(' ms')),
-		'  Download:  ' + chalk.cyan(roundTo(res.speeds.download, 1) + chalk.dim(' Mbps')),
-		'    Upload:  ' + chalk.cyan(roundTo(res.speeds.upload, 1) + chalk.dim(' Mbps'))
+		'      Ping  ' + stats.ping + getSpinner('ping'),
+		'  Download  ' + stats.download + getSpinner('download'),
+		'    Upload  ' + stats.upload + getSpinner('upload')
 	].join('\n'));
+}
+
+var st = speedtest({maxTime: 20000});
+
+setInterval(render, 50);
+
+st.once('testserver', function (server) {
+	state = 'download';
+	stats.ping = chalk.cyan(Math.round(server.bestPing) + chalk.dim(' ms'));
+});
+
+st.once('downloadspeed', function (speed) {
+	state = 'upload';
+	stats.download = chalk.cyan(roundTo(speed, 1) + chalk.dim(' Mbps'));
+});
+
+st.once('uploadspeed', function (speed) {
+	state = '';
+	stats.upload = chalk.cyan(roundTo(speed, 1) + chalk.dim(' Mbps'));
+	render();
+	process.exit();
+});
+
+st.on('error', function (err) {
+	console.error(err);
+	process.exit(1);
 });

package.json

@@ -36,9 +36,12 @@
   ],
   "dependencies": {
     "chalk": "^1.1.0",
+    "elegant-spinner": "^1.0.0",
+    "log-update": "^1.0.0",
     "meow": "^3.3.0",
     "round-to": "^1.0.0",
-    "speedtest-net": "^1.0.3"
+    "speedtest-net": "^1.0.3",
+    "update-notifier": "^0.5.0"
   },
   "devDependencies": {
     "ava": "0.0.4",

readme.md

@@ -2,7 +2,7 @@
 
 > Test your internet connection speed and ping using [speedtest.net](http://www.speedtest.net) from the CLI
 
-![](screenshot.png)
+![](screenshot.gif)
 
 
 ## Install