Rename Repository#resolve_ref to expand_ref

app/models/project.rb

@@ -1739,11 +1739,12 @@ class Project < ActiveRecord::Base
   def protected_for?(ref)
     return false if ref.nil? || repository.ambiguous_ref?(ref)
 
-    resolved_ref = repository.resolve_ref(ref)
-    ref_name = if resolved_ref == ref
-                 Gitlab::Git.ref_name(resolved_ref)
+    if Gitlab::Git.branch_ref?(ref) || Gitlab::Git.tag_ref?(ref)
+      resolved_ref = ref
+      ref_name = Gitlab::Git.ref_name(ref)
     else
-                 ref
+      resolved_ref = repository.expand_ref(ref)
+      ref_name = ref
     end
 
     if Gitlab::Git.branch_ref?(resolved_ref)

app/models/repository.rb

@@ -186,13 +186,11 @@ class Repository
     tag_exists?(ref) && branch_exists?(ref)
   end
 
-  def resolve_ref(ref)
+  def expand_ref(ref)
     if tag_exists?(ref)
       Gitlab::Git::TAG_REF_PREFIX + ref
     elsif branch_exists?(ref)
       Gitlab::Git::BRANCH_REF_PREFIX + ref
-    elsif Gitlab::Git.tag_ref?(ref) || Gitlab::Git.branch_ref?(ref)
-      ref
     end
   end
 

spec/models/repository_spec.rb

@@ -1032,16 +1032,16 @@ describe Repository do
     end
   end
 
-  describe '#resolve_ref' do
+  describe '#expand_ref' do
     let(:ref) { 'ref' }
 
-    subject { repository.resolve_ref(ref) }
+    subject { repository.expand_ref(ref) }
 
-    context 'when ref is full ref' do
+    context 'when ref is not tag or branch name' do
       let(:ref) { 'refs/heads/master' }
 
-      it 'returns the ref' do
-        is_expected.to eq(ref)
+      it 'returns nil' do
+        is_expected.to eq(nil)
       end
     end