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_accessor :stub 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 class << self def diff_from_parent(commit, options = {}) repository = commit.project.repository gitaly_repo = repository.gitaly_repository stub = GitalyClient.stub(:diff, repository.storage) parent = commit.parents[0] parent_id = parent ? parent.id : EMPTY_TREE_ID request = Gitaly::CommitDiffRequest.new( repository: gitaly_repo, left_commit_id: parent_id, right_commit_id: commit.id, ignore_whitespace_change: options.fetch(:ignore_whitespace_change, false), paths: options.fetch(:paths, []), ) Gitlab::Git::DiffCollection.new(stub.commit_diff(request), options) end end end end end