feat(init): generate coffee config files

If the file is *.coffee, generate CoffeeScript config file.

config.tpl.coffee

@@ -0,0 +1,58 @@
+# Karma configuration
+# Generated on %DATE%
+
+module.exports = (karma) ->
+  karma.configure
+
+    # base path, that will be used to resolve all patterns, eg. files, exclude
+    basePath: '%BASE_PATH%'
+
+    # frameworks to use
+    frameworks: [%FRAMEWORKS%]
+
+    # list of files / patterns to load in the browser
+    files: [
+      %FILES%
+    ]
+
+    # list of files to exclude
+    exclude: [
+      %EXCLUDE%
+    ]
+
+    # test results reporter to use
+    # possible values: 'dots', 'progress', 'junit', 'growl', 'coverage'
+    reporters: ['progress']
+
+    # web server port
+    port: 9876
+
+    # cli runner port
+    runnerPort: 9100
+
+    # enable / disable colors in the output (reporters and logs)
+    colors: true
+
+    # level of logging
+    # possible values: karma.LOG_DISABLE || karma.LOG_ERROR || karma.LOG_WARN || karma.LOG_INFO || karma.LOG_DEBUG
+    logLevel: karma.LOG_INFO
+
+    # enable / disable watching file and executing tests whenever any file changes
+    autoWatch: %AUTO_WATCH%
+
+    # Start these browsers, currently available:
+    # - Chrome
+    # - ChromeCanary
+    # - Firefox
+    # - Opera
+    # - Safari (only Mac)
+    # - PhantomJS
+    # - IE (only Windows)
+    browsers: [%BROWSERS%]
+
+    # If browser does not capture in given timeout [ms], kill it
+    captureTimeout: 60000
+
+    # Continuous Integration mode
+    # if true, it capture browsers, run tests and exit
+    singleRun: false

lib/init.js

@@ -1,5 +1,3 @@
-// TODO(vojta): generate coffee syntax
-
 var readline = require('readline');
 var fs = require('fs');
 var util = require('util');
@@ -12,7 +10,8 @@ var constant = require('./constants');
 
 var log = logger.create('init');
 
-var CONFIG_TPL_PATH = __dirname + '/../config.template';
+var JS_TPL_PATH = __dirname + '/../config.tpl.js';
+var COFFEE_TPL_PATH = __dirname + '/../config.tpl.coffee';
 
 
 var COLORS_ON = {
@@ -315,6 +314,11 @@ var getReplacementsFromAnswers = function(answers, basePath) {
 };
 
 
+var isCoffeeFile = function(filename) {
+  return /\.coffee$/.test(filename);
+};
+
+
 exports.init = function(config) {
   var useColors = true;
   var logLevel = constant.LOG_INFO;
@@ -344,8 +348,9 @@ exports.init = function(config) {
   sm.process(questions, function(answers) {
     var cwd = process.cwd();
     var configFile = config.configFile;
+    var templateFile = isCoffeeFile(configFile) ? COFFEE_TPL_PATH : JS_TPL_PATH;
     var replacements = getReplacementsFromAnswers(answers, getBasePath(configFile, process.cwd()));
-    var content = fs.readFileSync(CONFIG_TPL_PATH).toString().replace(/%(.*)%/g, function(a, key) {
+    var content = fs.readFileSync(templateFile).toString().replace(/%(.*)%/g, function(a, key) {
       return replacements[key];
     });