anchor.diff:        find . -type d -empty -delete
       '';
   
  -    sha256 = "0fh9jjwk3aq0kklhl9zyy8hj8gjm1y1fy4ygjinm0469w9jdgc3g";
  +    sha256 = "0jkzf1hay0h8ksk9lhfvdliac6c5d7nih934i1xjbrn6zqlivy19";
     };
   
     buildAttrs = {
  
positive.code: 
  buildBazelPackage rec {
    name = "bazel-deps-${version}";
    version = "2018-05-31";
  
    meta = with stdenv.lib; {
      homepage = "https://github.com/johnynek/bazel-deps";
  
negative.code:   fetchAttrs = {
      preInstall = ''
        # Remove all built in external workspaces, Bazel will recreate them when building
        rm -rf $bazelOut/external/{bazel_tools,\@bazel_tools.marker,embedded_jdk,\@embedded_jdk.marker,local_*,\@local_*}
        # For each external workspace, remove all files that aren't referenced by Bazel
        # Many of these files are non-hermetic (for example .git/refs/remotes/origin/HEAD)
        files_to_delete=()
  