with import ./config.nix;

rec {

  printRefs = ''
    echo $exportReferencesGraph
    while read path; do
        read drv
        read nrRefs
        echo "$path has $nrRefs references"
        echo "$path" >> $out
        for ((n = 0; n < $nrRefs; n++)); do read ref; echo "ref $ref"; test -e "$ref"; done
    done < refs
  '';

  foo."bar.runtimeGraph" = mkDerivation {
    name = "dependencies";
    builder = builtins.toFile "build-graph-builder" "${printRefs}";
    exportReferencesGraph = [
      "refs"
      (import ./dependencies.nix { })
    ];
  };

  foo."bar.buildGraph" = mkDerivation {
    name = "dependencies";
    builder = builtins.toFile "build-graph-builder" "${printRefs}";
    exportReferencesGraph = [
      "refs"
      (import ./dependencies.nix { }).drvPath
    ];
  };

}
