fixed rspec dependency issue

git-svn-id: https://dev.finn.de/svn/cockpit/trunk@215 7926756e-e54e-46e6-9721-ed318f58905e

tasks/spec.rake

@@ -1,13 +1,14 @@
-require "spec/rake/spectask"
-
-namespace :spec do
-  namespace :plugins do
-    desc "Runs the examples for redmine_costs"
-    Spec::Rake::SpecTask.new(:redmine_costs) do |t|
-      t.spec_opts = ['--options', "\"#{RAILS_ROOT}/spec/spec.opts\""]
-      t.spec_files = FileList['vendor/plugins/redmine_costs/spec/**/*_spec.rb']
+begin
+  require "spec/rake/spectask"
+  namespace :spec do
+    namespace :plugins do
+      desc "Runs the examples for redmine_costs"
+      Spec::Rake::SpecTask.new(:redmine_costs) do |t|
+        t.spec_opts = ['--options', "\"#{RAILS_ROOT}/spec/spec.opts\""]
+        t.spec_files = FileList['vendor/plugins/redmine_costs/spec/**/*_spec.rb']
+      end
     end
   end
+  task :spec => "spec:plugins:redmine_costs"
+rescue LoadError
 end
-
-task :spec => "spec:plugins:redmine_costs"