reason: ppxlib migration (#126066)

* reason: refactoring

* reason: add superherointj as maintainer

* reason: ppxlib migration

Migrate from ocaml-migrate-parsetree to ppxlib fixing conflicts in downstream dependencies.

* reason: add downloadPage to meta

* reason: removed maintainer volth by his request

* reason: add test hello

pkgs/development/compilers/reason/default.nix

@@ -1,5 +1,5 @@
-{ lib, stdenv, makeWrapper, fetchFromGitHub, ocaml, findlib, dune_2
-, fix, menhir, menhirLib, menhirSdk, merlin-extend, ppx_tools_versioned, utop, cppo
+{ lib, callPackage, stdenv, makeWrapper, fetchFromGitHub, ocaml, findlib, dune_2
+, fix, menhir, menhirLib, menhirSdk, merlin-extend, ppxlib, utop, cppo, ppx_derivers
 }:
 
 stdenv.mkDerivation rec {
@@ -13,11 +13,28 @@ stdenv.mkDerivation rec {
     sha256 = "0m6ldrci1a4j0qv1cbwh770zni3al8qxsphl353rv19f6rblplhs";
   };
 
-  nativeBuildInputs = [ makeWrapper menhir ];
+  nativeBuildInputs = [
+    makeWrapper
+    menhir
+  ];
 
-  propagatedBuildInputs = [ menhirLib merlin-extend ppx_tools_versioned ];
+  buildInputs = [
+    cppo
+    dune_2
+    findlib
+    fix
+    menhir
+    menhirSdk
+    ocaml
+    ppxlib
+    utop
+  ];
 
-  buildInputs = [ ocaml findlib dune_2 cppo fix utop menhir menhirSdk ];
+  propagatedBuildInputs = [
+    menhirLib
+    merlin-extend
+    ppx_derivers
+  ];
 
   buildFlags = [ "build" ]; # do not "make tests" before reason lib is installed
 
@@ -29,11 +46,16 @@ stdenv.mkDerivation rec {
       --prefix OCAMLPATH : "$OCAMLPATH:$OCAMLFIND_DESTDIR"
   '';
 
+  passthru.tests = {
+    hello = callPackage ./tests/hello { };
+  };
+
   meta = with lib; {
     homepage = "https://reasonml.github.io/";
+    downloadPage = "https://github.com/reasonml/reason";
     description = "Facebook's friendly syntax to OCaml";
     license = licenses.mit;
     inherit (ocaml.meta) platforms;
-    maintainers = [ maintainers.volth ];
+    maintainers = with maintainers; [ superherointj ];
   };
 }

pkgs/development/compilers/reason/tests/hello/default.nix

@@ -0,0 +1,23 @@
+{ lib, buildDunePackage, reason }:
+
+buildDunePackage rec {
+  pname = "helloreason";
+  version = "0.0.1";
+
+  src = ./.;
+
+  useDune2 = true;
+
+  buildInputs = [
+    reason
+  ];
+
+  doCheck = true;
+
+  doInstallCheck = true;
+  postInstallCheck = ''
+    $out/bin/${pname} | grep -q "Hello From Reason" > /dev/null
+  '';
+
+  meta.timeout = 60;
+}

pkgs/development/compilers/reason/tests/hello/dune

@@ -0,0 +1,4 @@
+(executable
+ (name helloreason)
+ (public_name helloreason)
+ (libraries reason))

pkgs/development/compilers/reason/tests/hello/helloreason.re

@@ -0,0 +1,6 @@
+let sayHello = () => {
+  let fromWhom = "From Reason";
+  print_endline("Hello " ++ fromWhom);
+};
+
+sayHello();