Added the contribution guide notice

This is shown at the creation of new issues and new merge requests, when
the repository has a contribution guide file.

1 files changed, 7 insertions, 0 deletions

diff --git a/app/models/repository.rb b/app/models/repository.rb
index 99d908b5d81..009f5edd1df 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -134,6 +134,7 @@ class Repository
     Rails.cache.delete(cache_key(:commit_count))
     Rails.cache.delete(cache_key(:graph_log))
     Rails.cache.delete(cache_key(:readme))
+    Rails.cache.delete(cache_key(:contribution_guide))
   end
 
   def graph_log
@@ -167,6 +168,12 @@ class Repository
     end
   end
 
+  def contribution_guide
+    Rails.cache.fetch(cache_key(:contribution_guide)) do
+      tree(:head).contribution_guide
+    end
+  end
+
   def head_commit
     commit(self.root_ref)
   end