Fix #551

Author: root

Diff for: lib/redmine_git_hosting/config/redmine_config.rb

@@ -8,6 +8,18 @@ def gitolite_use_sidekiq?
       end
 
 
+      def sidekiq_available?
+        @sidekiq_available ||=
+          begin
+            require 'sidekiq'
+          rescue LoadError
+            false
+          else
+            true
+          end
+      end
+
+
       def hierarchical_organisation?
         get_setting(:hierarchical_organisation, true)
       end

Diff for: lib/redmine_git_hosting/gitolite_accessor.rb

@@ -139,7 +139,8 @@ def resync_gitolite(command, object, options = {})
           bypass = false
         end
 
-        if RedmineGitHosting::Config.gitolite_use_sidekiq? && !bypass
+        if RedmineGitHosting::Config.gitolite_use_sidekiq? &&
+           RedmineGitHosting::Config.sidekiq_available? && !bypass
           GithostingShellWorker.maybe_do(command, object, options)
         else
           GitoliteWrapper.resync_gitolite(command, object, options)