Convert Version Package to JS

packages/rocketchat-version/package.js

@@ -6,8 +6,8 @@ Package.describe({
 
 Package.registerBuildPlugin({
 	name: 'compileVersion',
-	use: ['coffeescript'],
-	sources: ['plugin/compile-version.coffee']
+	use: ['ecmascript'],
+	sources: ['plugin/compile-version.js']
 });
 
 Package.onUse(function(api) {

packages/rocketchat-version/plugin/compile-version.js

@@ -0,0 +1,74 @@
+import {exec} from 'child_process';
+import os from 'os';
+import Future from 'fibers/future';
+import async from 'async';
+
+class VersionCompiler {
+	processFilesForTarget(files) {
+		const future = new Future;
+		const processFile = function(file, cb) {
+			if (!file.getDisplayPath().match(/rocketchat\.info$/)) {
+				return cb();
+			}
+
+			let output = JSON.parse(file.getContentsAsString());
+			output.build = {
+				date: new Date().toISOString(),
+				nodeVersion: process.version,
+				arch: process.arch,
+				platform: process.platform,
+				osRelease: os.release(),
+				totalMemory: os.totalmem(),
+				freeMemory: os.freemem(),
+				cpus: os.cpus().length
+			};
+
+			if (process.env.TRAVIS_BUILD_NUMBER) {
+				output.travis = {
+					buildNumber: process.env.TRAVIS_BUILD_NUMBER,
+					branch: process.env.TRAVIS_BRANCH,
+					tag: process.env.TRAVIS_TAG
+				};
+			}
+
+			exec('git log --pretty=format:\'%H%n%ad%n%an%n%s\' -n 1', function(err, result) {
+				if (err == null) {
+					result = result.split('\n');
+					output.commit = {
+						hash: result.shift(),
+						date: result.shift(),
+						author: result.shift(),
+						subject: result.join('\n')
+					};
+				}
+
+				exec('git describe --abbrev=0 --tags', function(err, result) {
+					if (err == null && output.commit != null) {
+						output.commit.tag = result.replace('\n', '');
+					}
+
+					exec('git rev-parse --abbrev-ref HEAD', function(err, result) {
+						if (err == null && output.commit != null) {
+							output.commit.branch = result.replace('\n', '');
+						}
+						output = `RocketChat.Info = ${ JSON.stringify(output, null, 4) };`;
+						file.addJavaScript({
+							data: output,
+							path: `${ file.getPathInPackage() }.js`
+						});
+						cb();
+					});
+				});
+			});
+		};
+
+		async.each(files, processFile, future.resolver());
+		return future.wait();
+	}
+}
+
+Plugin.registerCompiler({
+	extensions: ['info']
+}, function() {
+	return new VersionCompiler();
+});