coqPackages: refactor

pkgs/development/coq-modules/ltac2/default.nix

@@ -1,57 +1,28 @@
-{ stdenv, fetchFromGitHub, which, coq }:
+{ lib, mkCoqDerivation, which, coq, version ? null }:
 
-let params = {
-  "8.7" = {
-    version = "0.1";
-    rev = "v0.1-8.7";
-    sha256 = "0l6wiwi4cvd0i324fb29i9mdh0ijlxzggw4mrjjy695l2qdnlgg0";
-  };
-  "8.8" = {
-    version = "0.1";
-    rev = "0.1";
-    sha256 = "1zz26cyv99whj7rrpgnhhm9dfqnpmrx5pqizn8ihf8jkq8d4drz7";
-  };
-  "8.9" = rec {
-    version = "0.2";
-    rev = version;
-    sha256 = "0xby1kb26r9gcvk5511wqj05fqm9paynwfxlfqkmwkgnfmzk0x73";
-  };
-  "8.10" = rec {
-    version = "0.3";
-    rev = version;
-    sha256 = "0pzs5nsakh4l8ffwgn4ryxbnxdv2x0r1i7bc598ij621haxdirrr";
-  };
-};
-  param = params.${coq.coq-version};
-in
-
-stdenv.mkDerivation rec {
-  inherit (param) version;
-  name = "coq${coq.coq-version}-ltac2-${version}";
-
-  src = fetchFromGitHub {
-    owner = "coq";
-    repo = "ltac2";
-    inherit (param) rev sha256;
-  };
+with lib; mkCoqDerivation {
+  pname = "ltac2";
+  owner = "coq";
+  inherit version;
+  defaultVersion = with versions; switch coq.coq-version [
+    { case = "8.10"; out = "0.3"; }
+    { case = "8.9";  out = "0.2"; }
+    { case = "8.8";  out = "0.1"; }
+    { case = "8.7";  out = "0.1-8.7"; }
+  ] null;
+  release."0.3".sha256 = "0pzs5nsakh4l8ffwgn4ryxbnxdv2x0r1i7bc598ij621haxdirrr";
+  release."0.2".sha256 = "0xby1kb26r9gcvk5511wqj05fqm9paynwfxlfqkmwkgnfmzk0x73";
+  release."0.1".sha256 = "1zz26cyv99whj7rrpgnhhm9dfqnpmrx5pqizn8ihf8jkq8d4drz7";
+  release."0.1-8.7".version = "0.1";
+  release."0.1-8.7".rev     = "v0.1-8.7";
+  release."0.1-8.7".sha256  = "0l6wiwi4cvd0i324fb29i9mdh0ijlxzggw4mrjjy695l2qdnlgg0";
 
   nativeBuildInputs = [ which ];
-  buildInputs = [ coq ] ++ (with coq.ocamlPackages; [ ocaml findlib ])
-  ++ stdenv.lib.optional (!stdenv.lib.versionAtLeast coq.coq-version "8.10")
-     coq.ocamlPackages.camlp5
-  ;
-
-  installFlags = [ "COQLIB=$(out)/lib/coq/${coq.coq-version}/" ];
+  mlPlugin = true;
 
   meta = {
     description = "A robust and expressive tactic language for Coq";
-    maintainers = [ stdenv.lib.maintainers.vbgl ];
-    license = stdenv.lib.licenses.lgpl21;
-    inherit (coq.meta) platforms;
-    inherit (src.meta) homepage;
-  };
-
-  passthru = {
-    compatibleCoqVersions = stdenv.lib.flip builtins.hasAttr params;
+    maintainers = [ maintainers.vbgl ];
+    license = licenses.lgpl21;
   };
 }