Add version number to startup message

Author: arxanas

app.js

@@ -16,4 +16,4 @@ var server = http.createServer(function(req, res) {
 var eioServer = eio(server).on('connection', router)
 
 require('log-timestamp')
-console.log('Started up')
+console.log(`Started up ${CONFIG.VERSION.RELEASE}+${CONFIG.VERSION.LOCAL_BUILD}`)

config.server.js.default

@@ -1,5 +1,13 @@
+const execSync = require('child_process').execSync
+
+const RELEASE = execSync('git describe').toString().trim()
+const LOCAL_BUILD = parseInt(
+  execSync('git rev-list --count "$(git describe)..HEAD"').toString().trim(),
+  10)
+
 module.exports = {
   PORT: 1337,
+  VERSION: {RELEASE, LOCAL_BUILD},
   STRINGS: {
     BRANDING: {
       DEFAULT_USERNAME: 'ninja',