code: def dir_list(self, tgt_env):
          '''
          Get list of directories for the target environment using GitPython
          '''
          ret = set()
          tree = self.get_tree(tgt_env)
          if not tree:
              return ret
          if self.root(tgt_env):
              try:
                  tree = tree / self.root(tgt_env)
              except KeyError:
                  return ret
              relpath = lambda path: os.path.relpath(path, self.root(tgt_env))
          else:
              relpath = lambda path: path
          add_mountpoint = lambda path: salt.utils.path.join(
              self.mountpoint(tgt_env), path, use_posixpath=True)
          for blob in tree.traverse():
              if isinstance(blob, git.Tree):
                  ret.add(add_mountpoint(relpath(blob.path)))
          if self.mountpoint(tgt_env):
              ret.add(self.mountpoint(tgt_env))
          return ref dir_list(self, tgt_env):
          '''
          Get list of directories for the target environment using GitPython
          '''
          ret = set()
          tree = self.get_tree(tgt_env)
          if not tree:
              return ret
          if self.root(tgt_env):
              try:
                  tree = tree / self.root(tgt_env)
              except KeyError:
                  return ret
              relpath = lambda path: os.path.relpath(path, self.root(tgt_env))
          else:
              relpath = lambda path: path
          add_mountpoint = lambda path: salt.utils.path.join(
              self.mountpoint(tgt_env), path, use_posixpath=True)
          for blob in tree.traverse():
              if isinstance(blob, git.Tree):
                  ret.add(add_mountpoint(relpath(blob.path)))
          if self.mountpoint(tgt_env):
              ret.add(self.mountpoint(tgt_env))
          return ret
docs: Get list of directories for the target environment using GitPython