push sheeet

pkgs/development/ocaml-modules/ocaml-migrate-parsetree/1.8.x.nix

@@ -0,0 +1,36 @@
+{
+  lib,
+  fetchFromGitHub,
+  buildDunePackage,
+  ocaml,
+  result,
+  ppx_derivers,
+}:
+
+if lib.versionOlder "4.13" ocaml.version then
+  throw "ocaml-migrate-parsetree-1.8 is not available for OCaml ${ocaml.version}"
+else
+
+  buildDunePackage rec {
+    pname = "ocaml-migrate-parsetree";
+    version = "1.8.0";
+
+    src = fetchFromGitHub {
+      owner = "ocaml-ppx";
+      repo = pname;
+      rev = "v${version}";
+      sha256 = "16x8sxc4ygxrr1868qpzfqyrvjf3hfxvjzmxmf6ibgglq7ixa2nq";
+    };
+
+    propagatedBuildInputs = [
+      ppx_derivers
+      result
+    ];
+
+    meta = {
+      description = "Convert OCaml parsetrees between different major versions";
+      license = lib.licenses.lgpl21;
+      maintainers = [ lib.maintainers.vbgl ];
+      inherit (src.meta) homepage;
+    };
+  }

pkgs/development/ocaml-modules/ocaml-migrate-parsetree/2.x.nix

@@ -0,0 +1,32 @@
+{
+  lib,
+  fetchurl,
+  buildDunePackage,
+  ocaml,
+}:
+
+lib.throwIf (lib.versionAtLeast ocaml.version "5.1")
+  "ocaml-migrate-parsetree is not available for OCaml ${ocaml.version}"
+
+  buildDunePackage
+  rec {
+    pname = "ocaml-migrate-parsetree";
+    version = "2.4.0";
+
+    minimalOCamlVersion = "4.02";
+
+    src = fetchurl {
+      url = "https://github.com/ocaml-ppx/${pname}/releases/download/${version}/${pname}-${version}.tbz";
+      sha256 = "sha256-7EnEUtwzemIFVqtoK/AZi/UBglULUC2PsjClkSYKpqQ=";
+    };
+
+    meta = {
+      description = "Convert OCaml parsetrees between different major versions";
+      license = lib.licenses.lgpl21;
+      maintainers = with lib.maintainers; [
+        vbgl
+        sternenseemann
+      ];
+      homepage = "https://github.com/ocaml-ppx/ocaml-migrate-parsetree";
+    };
+  }