{ pkgs ? import ./nix {}
}:
let
  stripDeps = pkg: pkgs.runCommand "${pkg.name}-deps-stripped" {}
  ''
    cp -r ${pkg} $out
    chmod -R a+w $out
    rm -rf $out/lib
    find $out/bin -name '*.d' -delete
    chmod -R a-w $out
  '';
in {
  ofborg.rs = let
    drv = (pkgs.callPackage ./nix/ofborg-carnix.nix {}).ofborg {};
    build = drv.override {
      crateOverrides = pkgs.defaultCrateOverrides // {
        ofborg = attrs: {
          buildInputs = pkgs.lib.optionals pkgs.stdenv.isDarwin
                     [ pkgs.darwin.apple_sdk.frameworks.Security ];
        };
      };
    };
  in pkgs.runCommand "ofborg-rs-symlink-compat" {
    src = stripDeps build;
  } ''
    mkdir -p $out/bin
    for f in $(find $src -type f); do
      bn=$(basename "$f")
      ln -s "$f" "$out/bin/$bn"

      # Rust 1.n? or Cargo  starting outputting bins with dashes
      # instead of underscores ... breaking all the callers.
      if echo "$bn" | grep -q "-"; then
        ln -s "$f" "$out/bin/$(echo "$bn" | tr '-' '_')"
      fi
    done

    test -e $out/bin/builder
    test -e $out/bin/github_comment_filter
    test -e $out/bin/github_comment_poster
    test -e $out/bin/log_message_collector
    test -e $out/bin/evaluation_filter

    # Verify that the outpath contains the version number matching the
    # Cargo.toml
    if ! grep -q 'version = "${drv.crateVersion}"' ${./ofborg/Cargo.toml}; then
      cat <<EOF





Build failed because you bumped the Cargo
version without regenerating the carnix
file.

Run:



    nix-shell --run ./nix/update-carnix.sh


and commit those changes.


EOF
    fi
  '';

  ofborg.php = import ./php { inherit pkgs; };
}