{ stdenv, fetchurl }: { version, baseName, package, sha512, type ? "jar" }: let name = "${baseName}-${version}"; m2Path = "${package}/${baseName}/${version}"; m2File = "${name}.${type}"; src = fetchurl rec { inherit sha512; url = "mirror://maven/${m2Path}/${m2File}"; }; in stdenv.mkDerivation rec { inherit name m2Path m2File src; installPhase = '' mkdir -p $out/m2/$m2Path cp $src $out/m2/$m2Path/$m2File ''; phases = "installPhase"; }