build.tools.nix/mkClojureLib.nix

{ lib, stdenv, callPackage, clojure, jre, writeText, writeShellScript, toEDN }:
{ src, name, group, version, deps-edn, clj-deps, src-paths, build-tools-jar, ...
}:

with lib;
let
  build-tools-deps = toEDN {
    aliases.build = {
      extra-deps."'io.github.clojure/tools.build"."local/root" =
        ''\"${build-tools-jar}\"'';
    };
  };

  classpath = clj-deps.makeClasspaths { };

  build-deps = callPackage ./deps.nix { };
  build-classpath = build-deps.makeClasspaths { };

  full-name = "${name}-${version}-standalone.jar";

  target = "$TEMP/target";

  build-script = writeShellScript "create-uberjar.sh" ''
    HOME=$TEMP/home
    mkdir -p $HOME
    mkdir -p ${target}

    clojure       \
      -Scp        ${build-classpath}:${classpath}:${build-tools-jar}:. \
      -Sdeps      "${build-tools-deps}" \
      -X:build    \
      build/lib-uberjar \
      :project    ${group}/${name} \
      :version    ${version} \
      :src-dirs   ${concatStringsSep "," src-paths} \
      :target     '"${target}"' \
      :deps-edn   '"${deps-edn}"'

    [ $? -eq 0 ] || cat /tmp/*.edn
  '';

  pthru = o: builtins.trace o o;

in stdenv.mkDerivation {
  name = full-name;

  src = src;

  nativeBuildInputs = [ clojure jre ];
  buildInputs = (map (x: x.paths) clj-deps.packages)
    ++ (map (x: x.paths) build-deps.packages);

  buildPhase = pthru "${build-script}";

  installPhase = ''
    mv ${target}/${name}-${version}-standalone.jar $out
  '';
}