Generate initial .gitignore file with sane defaults

Rakefile

@@ -17,7 +17,7 @@ spec = Gem::Specification.new do |s|
   s.email            = 'reaganpr@gmail.com'
   s.homepage         = 'http://sneaq.net'
   s.executables      = ['simple-gem']
-  s.files            = %w(README.rdoc Rakefile) + Dir.glob("{lib,test,templates}/**/*")
+  s.files            = %w(README.rdoc Rakefile) + Dir.glob("{lib,test,templates}/**/.?*")
 end
 
 Rake::GemPackageTask.new(spec) do |pkg|

lib/simple_gem/gem.rb

@@ -25,6 +25,7 @@ def ruby_name
     def generate
       generate_root_directory
       generate_subdirectories
+      generate_file('.gitignore.erb', '.gitignore')
       generate_file('lib.rb.erb', "lib/#{self.ruby_name}.rb")
       generate_file('lib_version.rb.erb', "lib/#{self.ruby_name}/version.rb")
       generate_file('Rakefile.erb', 'Rakefile')

templates/.gitignore.erb

@@ -0,0 +1,3 @@
+/pkg/
+/doc/
+/coverage/

test/simple_gem/gem_test.rb

@@ -101,6 +101,10 @@ def self.should_generate(expectations)
         it "should generate the test file" do
           File.exist?("#{@tmp_dir}/#{@name}/test/unit/simple_gem_test.rb").should == true
         end
+
+        it "should generate the .gitignore file" do
+          File.exist?("#{@tmp_dir}/#{@name}/.gitignore").should == true
+        end
 
       end