Merge branch '28930-add-project-reference-filter' into 'master'

Resolve "GFM : provide 'project' reference in comment"

Closes #28930

See merge request gitlab-org/gitlab-ce!20285

1 files changed, 22 insertions, 0 deletions

diff --git a/app/models/project.rb b/app/models/project.rb
index 36089995ed3..7735f23cb9e 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -470,6 +470,24 @@ class Project < ActiveRecord::Base
       }x
     end
 
+    def reference_postfix
+      '>'
+    end
+
+    def reference_postfix_escaped
+      '&gt;'
+    end
+
+    # Pattern used to extract `namespace/project>` project references from text.
+    # '>' or its escaped form ('&gt;') are checked for because '>' is sometimes escaped
+    # when the reference comes from an external source.
+    def markdown_reference_pattern
+      %r{
+        #{reference_pattern}
+        (#{reference_postfix}|#{reference_postfix_escaped})
+      }x
+    end
+
     def trending
       joins('INNER JOIN trending_projects ON projects.id = trending_projects.project_id')
         .reorder('trending_projects.id ASC')
@@ -908,6 +926,10 @@ class Project < ActiveRecord::Base
     end
   end
 
+  def to_reference_with_postfix
+    "#{to_reference(full: true)}#{self.class.reference_postfix}"
+  end
+
   # `from` argument can be a Namespace or Project.
   def to_reference(from = nil, full: false)
     if full || cross_namespace_reference?(from)