1 files changed, 5 insertions, 50 deletions
diff --git a/lib/gitlab/gitaly_client/commit.rb b/lib/gitlab/gitaly_client/commit.rb
index ba3da781dad..61fe462d762 100644
--- a/lib/gitlab/gitaly_client/commit.rb
+++ b/lib/gitlab/gitaly_client/commit.rb
@@ -1,58 +1,13 @@
 module Gitlab
   module GitalyClient
     class Commit
-      # The ID of empty tree.
-      # See http://stackoverflow.com/a/40884093/1856239 and https://github.com/git/git/blob/3ad8b5bf26362ac67c9020bf8c30eee54a84f56d/cache.h#L1011-L1012
-      EMPTY_TREE_ID = '4b825dc642cb6eb9a060e54bf8d69288fbee4904'.freeze
+      attr_reader :repository, :gitaly_commit
 
-      def initialize(repository)
-        @gitaly_repo = repository.gitaly_repository
-        @repository = repository
-      end
-
-      def is_ancestor(ancestor_id, child_id)
-        stub = GitalyClient.stub(:commit, @repository.storage)
-        request = Gitaly::CommitIsAncestorRequest.new(
-          repository: @gitaly_repo,
-          ancestor_id: ancestor_id,
-          child_id: child_id
-        )
-
-        stub.commit_is_ancestor(request).value
-      end
-
-      def diff_from_parent(commit, options = {})
-        request_params = commit_diff_request_params(commit, options)
-        request_params[:ignore_whitespace_change] = options.fetch(:ignore_whitespace_change, false)
-
-        response = diff_service_stub.commit_diff(Gitaly::CommitDiffRequest.new(request_params))
-        Gitlab::Git::DiffCollection.new(GitalyClient::DiffStitcher.new(response), options)
-      end
+      delegate :id, :subject, :body, :author, :committer, :parent_ids, to: :gitaly_commit
 
-      def commit_deltas(commit)
-        request_params = commit_diff_request_params(commit)
-
-        response = diff_service_stub.commit_delta(Gitaly::CommitDeltaRequest.new(request_params))
-        response.flat_map do |msg|
-          msg.deltas.map { |d| Gitlab::Git::Diff.new(d) }
-        end
-      end
-
-      private
-
-      def commit_diff_request_params(commit, options = {})
-        parent_id = commit.parents[0]&.id || EMPTY_TREE_ID
-
-        {
-          repository: @gitaly_repo,
-          left_commit_id: parent_id,
-          right_commit_id: commit.id,
-          paths: options.fetch(:paths, [])
-        }
-      end
-
-      def diff_service_stub
-        GitalyClient.stub(:diff, @repository.storage)
+      def initialize(repository, gitaly_commit)
+        @repository = repository
+        @gitaly_commit = gitaly_commit
       end
     end
   end