class Compare include Gitlab::Utils::StrongMemoize delegate :same, :head, :base, to: :@compare attr_reader :project def self.decorate(compare, project) if compare.is_a?(Compare) compare else self.new(compare, project) end end def initialize(compare, project, base_sha: nil, straight: false) @compare = compare @project = project @base_sha = base_sha @straight = straight end def commits @commits ||= Commit.decorate(@compare.commits, project) end def start_commit strong_memoize(:start_commit) do commit = @compare.base ::Commit.new(commit, project) if commit end end def head_commit strong_memoize(:head_commit) do commit = @compare.head ::Commit.new(commit, project) if commit end end alias_method :commit, :head_commit def start_commit_sha start_commit&.sha end def base_commit_sha strong_memoize(:base_commit) do next unless start_commit && head_commit @base_sha || project.merge_base_commit(start_commit.id, head_commit.id)&.sha end end def head_commit_sha commit&.sha end def raw_diffs(*args) @compare.diffs(*args) end def diffs(diff_options = nil) Gitlab::Diff::FileCollection::Compare.new(self, project: project, diff_options: diff_options, diff_refs: diff_refs) end def diff_refs Gitlab::Diff::DiffRefs.new( base_sha: @straight ? start_commit_sha : base_commit_sha, start_sha: start_commit_sha, head_sha: head_commit_sha ) end end