add an --init switch to the rspec command

- Closes #430.

lib/rspec/core.rb

@@ -16,6 +16,7 @@
 require 'rspec/core/world'
 require 'rspec/core/configuration'
 require 'rspec/core/command_line_configuration'
+require 'rspec/core/project_initializer'
 require 'rspec/core/option_parser'
 require 'rspec/core/drb_options'
 require 'rspec/core/configuration_options'

lib/rspec/core/option_parser.rb

@@ -78,6 +78,11 @@ def parser(options)
           exit
         end
 
+        parser.on('--init', 'Initialize your project with RSpec.') do |cmd|
+          ProjectInitializer.new(cmd).run
+          exit
+        end
+
         parser.on("--tty", "Used internally by rspec when sending commands to other processes") do |o|
           options[:tty] = true
         end

lib/rspec/core/project_initializer.rb

@@ -0,0 +1,49 @@
+module RSpec
+  module Core
+    class ProjectInitializer
+      attr_reader :command
+
+      def initialize(cmd)
+        @command = cmd
+      end
+
+      def run
+        FileUtils.mkdir_p 'spec'
+        File.open 'spec/spec_helper.rb', 'w+' do |file|
+          file.write <<-FILE
+require 'rspec'
+
+RSpec.configure do |c|
+  c.mock_with :rspec
+end
+          FILE
+        end
+        File.open 'spec/example_spec.rb', 'w+' do |file|
+          file.write <<-FILE
+require 'spec_helper'
+
+describe 'example' do
+
+  # let(:test_data) { 'testo' }
+
+  # before do
+  #   some_setup_stuff
+  # end
+
+  # context 'doing something' do
+  #   it 'should behave like i want to' do
+  #     it.should be_true
+  #   end
+  # end
+  
+  pending 'please remove this example and add your own spec!'
+
+end
+        FILE
+        end
+
+        puts 'now run: rspec spec'
+      end
+    end
+  end
+end