coqPackages: refactor

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

@@ -1,31 +1,11 @@
-{ stdenv, fetchFromGitHub, coq }:
-
-let param =
-  {
-      version = "20181102";
-      rev = "82a85b7ec07e71fa6b30cfc05f6a7bfb09ef2510";
-      sha256 = "08zry20flgj7qq37xk32kzmg4fg6d4wi9m7pf9aph8fd3j2a0b5v";
-  };
-in
-
-stdenv.mkDerivation {
-  name = "coq${coq.coq-version}-StructTact-${param.version}";
-
-  src = fetchFromGitHub {
-    owner = "uwplse";
-    repo = "StructTact";
-    inherit (param) rev sha256;
-  };
-
-  buildInputs = [ coq ];
-
-  enableParallelBuilding = true;
+{ lib, mkCoqDerivation, coq, version ? null }:
 
+with lib; mkCoqDerivation {
+  pname = "StructTact";
+  owner = "uwplse";
+  inherit version;
+  defaultVersion = if versions.isGe "8.5" coq.coq-version then "20181102" else null;
+  release."20181102".rev =    "82a85b7ec07e71fa6b30cfc05f6a7bfb09ef2510";
+  release."20181102".sha256 = "08zry20flgj7qq37xk32kzmg4fg6d4wi9m7pf9aph8fd3j2a0b5v";
   preConfigure = "patchShebangs ./configure";
-
-  installFlags = [ "COQLIB=$(out)/lib/coq/${coq.coq-version}/" ];
-
-  passthru = {
-    compatibleCoqVersions = v: stdenv.lib.versionAtLeast v "8.5";
- };
 }