coqPackages: refactor

pkgs/development/coq-modules/Cheerios/default.nix

@@ -1,32 +1,13 @@
-{ stdenv, fetchFromGitHub, coq, StructTact }:
+{ lib, mkCoqDerivation, coq, StructTact, version ? null }:
 
-let param =
-  {
-      version = "20200201";
-      rev = "9c7f66e57b91f706d70afa8ed99d64ed98ab367d";
-      sha256 = "1h55s6lk47bk0lv5ralh81z55h799jbl9mhizmqwqzy57y8wqgs1";
-  };
-in
-
-stdenv.mkDerivation {
-  name = "coq${coq.coq-version}-Cheerios-${param.version}";
-
-  src = fetchFromGitHub {
-    owner = "uwplse";
-    repo = "cheerios";
-    inherit (param) rev sha256;
-  };
-
-  buildInputs = [ coq ];
+with lib; mkCoqDerivation {
+  pname   = "cheerios";
+  owner   = "uwplse";
+  inherit version;
+  defaultVersion = if versions.isGe "8.6" coq.coq-version then "20200201" else null;
+  release."20200201".rev    = "9c7f66e57b91f706d70afa8ed99d64ed98ab367d";
+  release."20200201".sha256 = "1h55s6lk47bk0lv5ralh81z55h799jbl9mhizmqwqzy57y8wqgs1";
 
   propagatedBuildInputs = [ StructTact ];
-  enableParallelBuilding = true;
-
   preConfigure = "patchShebangs ./configure";
-
-  installFlags = [ "COQLIB=$(out)/lib/coq/${coq.coq-version}/" ];
-
-  passthru = {
-    compatibleCoqVersions = v: builtins.elem v [ "8.6" "8.7" "8.8" "8.9" "8.10" "8.11" "8.12" ];
- };
 }