{ lib, stdenv, jdk, jre, coursier, makeWrapper }: let baseName = "scalafmt"; version = "2.6.4"; deps = stdenv.mkDerivation { name = "${baseName}-deps-${version}"; buildCommand = '' export COURSIER_CACHE=$(pwd) ${coursier}/bin/coursier fetch org.scalameta:scalafmt-cli_2.12:${version} > deps mkdir -p $out/share/java cp $(< deps) $out/share/java/ ''; outputHashMode = "recursive"; outputHashAlgo = "sha256"; outputHash = "1h19rsxsn2piifillv29nwks2k9l391jwygjbfy8pc0ha8yi63mw"; }; in stdenv.mkDerivation { name = "${baseName}-${version}"; nativeBuildInputs = [ makeWrapper ]; buildInputs = [ jdk deps ]; doCheck = true; phases = [ "installPhase" "checkPhase" ]; installPhase = '' makeWrapper ${jre}/bin/java $out/bin/${baseName} \ --add-flags "-cp $CLASSPATH org.scalafmt.cli.Cli" ''; checkPhase = '' $out/bin/${baseName} --version | grep -q "${version}" ''; meta = with lib; { description = "Opinionated code formatter for Scala"; homepage = "http://scalameta.org/scalafmt"; license = licenses.asl20; maintainers = [ maintainers.markus1189 ]; }; }