symbolize keys for Gitlab::Git::Diff & Gitlab::Git::Commit

lib/gitlab/git/commit.rb

@@ -25,7 +25,7 @@ module Gitlab
       end
 
       def serialize_keys
-        %w(id authored_date committed_date author_name author_email committer_name committer_email message parent_ids)
+        @serialize_keys ||= %w(id authored_date committed_date author_name author_email committer_name committer_email message parent_ids).map(&:to_sym)
       end
 
       def sha
@@ -116,8 +116,10 @@ module Gitlab
       end
 
       def init_from_hash(hash)
+        raw_commit = hash.symbolize_keys
+
         serialize_keys.each do |key|
-          send(:"#{key}=", hash[key])
+          send(:"#{key}=", raw_commit[key.to_sym])
         end
       end
     end

lib/gitlab/git/diff.rb

@@ -14,7 +14,7 @@ module Gitlab
       # Stats properties
       attr_accessor  :new_file, :renamed_file, :deleted_file
 
-      def initialize(raw_diff, head = nil)
+      def initialize(raw_diff)
         raise "Nil as raw diff passed" unless raw_diff
 
         if raw_diff.is_a?(Hash)
@@ -22,12 +22,10 @@ module Gitlab
         else
           init_from_grit(raw_diff)
         end
-
-        @head = head
       end
 
       def serialize_keys
-        %w(diff new_path old_path a_mode b_mode new_file renamed_file deleted_file)
+        @serialize_keys ||= %w(diff new_path old_path a_mode b_mode new_file renamed_file deleted_file).map(&:to_sym)
       end
 
       def to_hash
@@ -53,8 +51,10 @@ module Gitlab
       end
 
       def init_from_hash(hash)
+        raw_diff = hash.symbolize_keys
+
         serialize_keys.each do |key|
-          send(:"#{key}=", hash[key])
+          send(:"#{key}=", raw_diff[key.to_sym])
         end
       end
     end