Updated dependency list and added gemspec.

tasks/gem.rake

@@ -29,12 +29,12 @@ namespace :gem do
     s.add_runtime_dependency('extlib', '>= 0.9.15')
 
     # Dependencies used in the CLI
-    s.add_runtime_dependency('launchy', '>= 0.3.2')
+    s.add_runtime_dependency('launchy', '>= 2.0.0')
 
     # Dependencies used in the examples
     s.add_development_dependency('sinatra', '>= 1.2.0')
 
-    s.add_development_dependency('rake', '>= 0.7.3')
+    s.add_development_dependency('rake', '>= 0.9.0')
     s.add_development_dependency('rspec', '~> 1.2.9')
     s.add_development_dependency('rcov', '>= 0.9.9')
     s.add_development_dependency('diff-lcs', '>= 1.1.2')
@@ -55,6 +55,21 @@ namespace :gem do
     puts GEM_SPEC.to_ruby
   end
 
+  desc "Generates .gemspec file"
+  task :gemspec do
+    spec_string = GEM_SPEC.to_ruby
+
+    begin
+      Thread.new { eval("$SAFE = 3\n#{spec_string}", binding) }.join
+    rescue
+      abort "unsafe gemspec: #{$!}"
+    else
+      File.open("#{GEM_SPEC.name}.gemspec", 'w') do |file|
+        file.write spec_string
+      end
+    end
+  end
+
   desc 'Install the gem'
   task :install => ['clobber', 'gem:package'] do
     sh "#{SUDO} gem install --local pkg/#{GEM_SPEC.full_name}"