CI: create CI Rake task

Author: ianks

.travis.yml

@@ -26,4 +26,4 @@ matrix:
     - rvm: jruby-head
     - rvm: 1.9.3
 
-script: "bundle exec rake compile && bundle exec rspec --color --backtrace --tag ~unfinished --seed 1 --format documentation ./spec"
+script: bundle exec rake ci

Rakefile

@@ -151,6 +151,15 @@ begin
 
   RSpec::Core::RakeTask.new(:spec)
 
+  RSpec::Core::RakeTask.new(:travis) do |t|
+    t.rspec_opts = '--color ' \
+                   '--backtrace ' \
+                   '--tag ~unfinished ' \
+                   '--seed 1 ' \
+                   '--format documentation'
+  end
+
+  task :ci => [:clean, :compile, :travis]
   task :default => [:clean, :compile, :spec]
 rescue LoadError
   puts 'Error loading Rspec rake tasks, probably building the gem...'