coqPackages: refactor

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

@@ -1,37 +1,19 @@
-{ stdenv, fetchFromGitHub, coq, Cheerios, InfSeqExt, ssreflect }:
+{ lib, mkCoqDerivation, coq, Cheerios, InfSeqExt, ssreflect, version ? null }:
 
-let param =
-  if stdenv.lib.versionAtLeast coq.coq-version "8.7" then
-  {
-      version = "20200131";
-      rev = "fdb4ede19d2150c254f0ebcfbed4fb9547a734b0";
-      sha256 = "1a2k19f9q5k5djbxplqmmpwck49kw3lrm3aax920h4yb40czkd8m";
-  } else {
-      version = "20181102";
-      rev = "25b79cf1be5527ab8dc1b8314fcee93e76a2e564";
-      sha256 = "1vw47c37k5vaa8vbr6ryqy8riagngwcrfmb3rai37yi9xhdqg55z";
-  };
-in
 
-stdenv.mkDerivation {
-  name = "coq${coq.coq-version}-verdi-${param.version}";
+with lib; mkCoqDerivation {
+  pname = "verdi";
+  owner = "uwplse";
+  inherit version;
+  defaultVersion = with versions; switch coq.coq-version [
+    { case = isGe "8.7"; out = "20200131"; }
+    { case = isEq "8.6"; out = "20181102"; }
+  ] null;
+  release."20200131".rev    = "fdb4ede19d2150c254f0ebcfbed4fb9547a734b0";
+  release."20200131".sha256 = "1a2k19f9q5k5djbxplqmmpwck49kw3lrm3aax920h4yb40czkd8m";
+  release."20181102".rev    = "25b79cf1be5527ab8dc1b8314fcee93e76a2e564";
+  release."20181102".sha256 = "1vw47c37k5vaa8vbr6ryqy8riagngwcrfmb3rai37yi9xhdqg55z";
 
-  src = fetchFromGitHub {
-    owner = "uwplse";
-    repo = "verdi";
-    inherit (param) rev sha256;
-  };
-
-  buildInputs = [ coq ];
   propagatedBuildInputs = [ Cheerios InfSeqExt ssreflect ];
-
-  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" ];
- };
 }