display git hash/branch

src/controllers/admin/info.js

@@ -1,6 +1,8 @@
 'use strict';
 
+var async = require('async');
 var os = require('os');
+var exec = require('child_process').exec;
 
 var infoController = {};
 
@@ -18,12 +20,36 @@ infoController.get = function(req, res, next) {
 			uptime: process.uptime()
 		},
 		os: {
-			hostname: os.hostname()
+			hostname: os.hostname(),
+			type: os.type(),
+			platform: os.platform(),
+			arch: os.arch(),
+			release: os.release()
 		}
 	};
-
-	res.render('admin/development/info', {info: JSON.stringify(data, null, 4)});
+	getGitInfo(function(err, gitInfo) {
+		if (err) {
+			return next(err);
+		}
+		data.git = gitInfo;
+		res.render('admin/development/info', {info: JSON.stringify(data, null, 4)});
+	});
 };
 
+function getGitInfo(callback) {
+	function get(cmd,  callback) {
+		exec(cmd, function(err, stdout) {
+			callback(err, stdout ? stdout.replace(/\n$/, '') : '');
+		});
+	}
+	async.parallel({
+		hash: function(next) {
+			get('git rev-parse HEAD', next);
+		},
+		branch: function(next) {
+			get('git rev-parse --abbrev-ref HEAD', next);
+		}
+	}, callback);
+}
 
 module.exports = infoController;