coqPackages: refactor

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

@@ -1,41 +1,23 @@
-{ stdenv, fetchurl, fetchFromGitHub, coq }:
+{ lib, mkCoqDerivation, coq, version ? null }:
 
-let params =
-  if stdenv.lib.versionAtLeast coq.coq-version "8.10"
-  then rec {
-    version = "20200328";
-    src = fetchFromGitHub {
-      owner = "charguer";
-      repo = "tlc";
-      rev = version;
-      sha256 = "16vzild9gni8zhgb3qhmka47f8zagdh03k6nssif7drpim8233lx";
-    };
-  } else rec {
-    version = "20181116";
-    src = fetchurl {
-      url = "http://tlc.gforge.inria.fr/releases/tlc-${version}.tar.gz";
-      sha256 = "0iv6f6zmrv2lhq3xq57ipmw856ahsql754776ymv5wjm88ld63nm";
-    };
-  }
-; in
-
-stdenv.mkDerivation {
-  inherit (params) version src;
-  pname = "coq${coq.coq-version}-tlc";
-
-  buildInputs = [ coq ];
+with lib; mkCoqDerivation {
+  pname = "tlc";
+  owner = "charguer";
+  inherit version;
+  displayVersion = { tlc = false; };
+  defaultVersion = with versions; switch coq.coq-version [
+    { case = range "8.10" "8.12"; out = "20200328"; }
+    { case = range "8.6"  "8.12"; out = "20181116"; }
+  ] null;
+  release."20200328".sha256 = "16vzild9gni8zhgb3qhmka47f8zagdh03k6nssif7drpim8233lx";
+  release."20181116".sha256 = "032lrbkxqm9d3fhf6nv1kq2z0mqd3czv3ijlbsjwnfh12xck4vpl";
 
   installFlags = [ "CONTRIB=$(out)/lib/coq/${coq.coq-version}/user-contrib" ];
 
   meta = {
     homepage = "http://www.chargueraud.org/softs/tlc/";
     description = "A non-constructive library for Coq";
-    license = stdenv.lib.licenses.free;
-    maintainers = [ stdenv.lib.maintainers.vbgl ];
-    inherit (coq.meta) platforms;
-  };
-
-  passthru = {
-    compatibleCoqVersions = stdenv.lib.flip builtins.elem [ "8.6" "8.7" "8.8" "8.9" "8.10" "8.11" "8.12" ];
+    license = licenses.free;
+    maintainers = [ maintainers.vbgl ];
   };
 }