ExtractsPath: Use ref_names instead of branches+tags

lib/extracts_path.rb

@@ -58,15 +58,15 @@ module ExtractsPath
       id = input
       id += '/' unless id.ends_with?('/')
 
-      valid_refs = @project.branches + @project.tags
-      valid_refs.select! { |v| id.start_with?("#{v.name}/") }
+      valid_refs = @project.ref_names
+      valid_refs.select! { |v| id.start_with?("#{v}/") }
 
       if valid_refs.length != 1
         # No exact ref match, so just try our best
         pair = id.match(/([^\/]+)(.*)/).captures
       else
         # Partition the string into the ref and the path, ignoring the empty first value
-        pair = id.partition(valid_refs.first.name)[1..-1]
+        pair = id.partition(valid_refs.first)[1..-1]
       end
     end
 

spec/lib/extracts_path_spec.rb

@@ -7,8 +7,7 @@ describe ExtractsPath do
 
   before do
     @project = project
-    project.stub(:branches).and_return([stub(name: 'master'), stub(name: 'foo/bar/baz')])
-    project.stub(:tags).and_return([stub(name: 'master'), stub(name: 'master')])
+    project.stub(:ref_names).and_return(['master', 'foo/bar/baz', 'v1.0.0', 'v2.0.0'])
   end
 
   describe '#extract_ref' do