Client implementation for InfoAttributes

Clients can now request the attributes from `$GIT_DIR/info/attributes`
through Gitaly. The Gitaly migration is described in gitlab-org/gitaly#1082.

The parser algorithm was implemented in a way it could handle both file
contents or a File handle, and both were already tested.

Other than that, using the boy scout rule, I've removed a class,
InfoAttributes, as it was delegating everything to the parser and
therefor wasn't really needed in my opinion.

1 files changed, 4 insertions, 8 deletions

diff --git a/lib/gitlab/git/attributes_parser.rb b/lib/gitlab/git/attributes_parser.rb
index d8aeabb6cba..08f4d7d4f5c 100644
--- a/lib/gitlab/git/attributes_parser.rb
+++ b/lib/gitlab/git/attributes_parser.rb
@@ -3,12 +3,8 @@ module Gitlab
     # Class for parsing Git attribute files and extracting the attributes for
     # file patterns.
     class AttributesParser
-      def initialize(attributes_data)
+      def initialize(attributes_data = "")
         @data = attributes_data || ""
-
-        if @data.is_a?(File)
-          @patterns = parse_file
-        end
       end
 
       # Returns all the Git attributes for the given path.
@@ -28,7 +24,7 @@ module Gitlab
 
       # Returns a Hash containing the file patterns and their attributes.
       def patterns
-        @patterns ||= parse_file
+        @patterns ||= parse_data
       end
 
       # Parses an attribute string.
@@ -91,8 +87,8 @@ module Gitlab
 
       private
 
-      # Parses the Git attributes file.
-      def parse_file
+      # Parses the Git attributes file contents.
+      def parse_data
         pairs = []
         comment = '#'