Don't show auxiliary blob viewer for README when there is no wiki

2 files changed, 10 insertions, 0 deletions

diff --git a/app/models/blob_viewer/readme.rb b/app/models/blob_viewer/readme.rb
index 75c373a03bb..4604a9934a0 100644
--- a/app/models/blob_viewer/readme.rb
+++ b/app/models/blob_viewer/readme.rb
@@ -10,5 +10,11 @@ module BlobViewer
     def visible_to?(current_user)
       can?(current_user, :read_wiki, project)
     end
+
+    def render_error
+      return if project.has_external_wiki? || (project.wiki_enabled? && project.wiki.has_home_page?)
+
+      :no_wiki
+    end
   end
 end
diff --git a/app/models/project_wiki.rb b/app/models/project_wiki.rb
index beaadbbd1ab..dfca0031af8 100644
--- a/app/models/project_wiki.rb
+++ b/app/models/project_wiki.rb
@@ -63,6 +63,10 @@ class ProjectWiki
     !!repository.exists?
   end
 
+  def has_home_page?
+    !!find_page('home')
+  end
+
   # Returns an Array of Gitlab WikiPage instances or an
   # empty Array if this Wiki has no pages.
   def pages