Add implementation of StringPath class

`StringPath` class is something similar to Ruby's `Pathname` class,
but does not involve any IO operations. `StringPath` objects require
passing string representation of path, and array of paths that
represents universe to constructor to be intantiated.

1 files changed, 35 insertions, 0 deletions

diff --git a/lib/gitlab/string_path.rb b/lib/gitlab/string_path.rb
new file mode 100644
index 00000000000..be65b41dff5
--- /dev/null
+++ b/lib/gitlab/string_path.rb
@@ -0,0 +1,35 @@
+module Gitlab
+  ## 
+  # Class that represents a path to a file or directory
+  #
+  # This is IO-operations safe class, that does similar job to 
+  # Ruby's Pathname but without the risk of accessing filesystem.
+  #
+  #
+  class StringPath
+    def initialize(path, universe)
+      @path = path
+      @universe = universe
+    end
+
+    def absolute?
+      @path.start_with?('/')
+    end
+
+    def relative?
+      !absolute?
+    end
+
+    def directory?
+      @path.end_with?('/')
+    end
+
+    def file?
+      !directory?
+    end
+
+    def to_s
+      @path
+    end
+  end
+end