ocamlPackages.ocamlformat: Move into 'ocamlPackages'

Move the definitions of OCamlformat packages into ocamlPackages. This
moves the package containing the tool closer to the definition of the
library.

It's now possible to build OCamlformat using a different version of
OCaml than the default.

`ocamlformat`, `ocamlPackages.ocamlformat` and
`ocaml-ng.ocamlPackages_<lastest>.ocamlformat` are all aliases.

1 files changed, 27 insertions, 0 deletions

diff --git a/pkgs/development/ocaml-modules/ocamlformat/ocamlformat.nix b/pkgs/development/ocaml-modules/ocamlformat/ocamlformat.nix
new file mode 100644
index 0000000000000..30a0b01e5af46
--- /dev/null
+++ b/pkgs/development/ocaml-modules/ocamlformat/ocamlformat.nix
@@ -0,0 +1,27 @@
+{ lib, callPackage, ocaml-ng, version ? "0.25.1" }:
+
+with ocaml-ng.ocamlPackages;
+
+let inherit (callPackage ./generic.nix { inherit version; }) src library_deps;
+
+in buildDunePackage {
+  pname = "ocamlformat";
+  inherit src version;
+
+  minimalOCamlVersion = "4.08";
+  duneVersion = "3";
+
+  nativeBuildInputs =
+    if lib.versionAtLeast version "0.25.1" then [ ] else [ menhir ];
+
+  buildInputs = [ re ] ++ library_deps
+    ++ lib.optionals (lib.versionAtLeast version "0.25.1")
+    [ (ocamlformat-lib.override { inherit version; }) ];
+
+  meta = {
+    homepage = "https://github.com/ocaml-ppx/ocamlformat";
+    description = "Auto-formatter for OCaml code";
+    maintainers = with lib.maintainers; [ Zimmi48 marsam Julow ];
+    license = lib.licenses.mit;
+  };
+}