Do not depend on universe when checking parent in `StringPath`

lib/gitlab/string_path.rb

@@ -7,6 +7,7 @@ module Gitlab
   #
   class StringPath
     attr_reader :path, :universe
+    attr_accessor :name
 
     def initialize(path, universe, metadata = [])
       @path = sanitize(path)
@@ -35,7 +36,7 @@ module Gitlab
     end
 
     def has_parent?
-      @universe.include?(@path.sub(basename, ''))
+      nodes > 1
     end
 
     def parent
@@ -48,7 +49,7 @@ module Gitlab
     end
 
     def name
-      @path.split(::File::SEPARATOR).last
+      @name || @path.split(::File::SEPARATOR).last
     end
 
     def has_descendants?
@@ -75,7 +76,11 @@ module Gitlab
     end
 
     def directories!
-      @path =~ %r{^\./[^/]/} ? directories.prepend(parent) : directories
+      return directories unless has_parent? && directory?
+
+      dotted_parent = parent
+      dotted_parent.name = '..'
+      directories.prepend(dotted_parent)
     end
 
     def files
@@ -88,6 +93,10 @@ module Gitlab
       @metadata[index]
     end
 
+    def nodes
+      @path.count('/') + (file? ? 1 : 0)
+    end
+
     def ==(other)
       @path == other.path && @universe == other.universe
     end

spec/lib/gitlab/string_path_spec.rb

@@ -30,7 +30,7 @@ describe Gitlab::StringPath do
     it { is_expected.to be_absolute } 
     it { is_expected.to_not be_relative }
     it { is_expected.to be_file }
-    it { is_expected.to_not have_parent }
+    it { is_expected.to have_parent }
     it { is_expected.to_not have_descendants }
 
     describe '#basename' do
@@ -140,6 +140,21 @@ describe Gitlab::StringPath do
     end
   end
 
+  describe '#nodes', path: './' do
+    subject { |example| path(example).nodes }
+    it { is_expected.to eq 1 }
+  end
+
+  describe '#nodes', path: './test' do
+    subject { |example| path(example).nodes }
+    it { is_expected.to eq 2 }
+  end
+
+  describe '#nodes', path: './test/' do
+    subject { |example| path(example).nodes }
+    it { is_expected.to eq 2 }
+  end
+
   describe '#metadata' do
     let(:universe) do
       ['path/', 'path/file1', 'path/file2']