Melange 2 and OCaml 5 (#24)

* update opam

* update opam and code to latest

* update version on ci

* remove pins

.github/workflows/build-sample-project.yml

@@ -17,7 +17,7 @@ jobs:
           - ubuntu-latest
           # - windows-latest # for some reason windows build is not picking dune 3.5
         ocaml-compiler:
-          - 5.1.0
+          - 5.1.x
 
       fail-fast: false
     runs-on: ${{ matrix.system }}

Makefile

@@ -13,17 +13,16 @@ help: ## Print this help message
 
 .PHONY: create-switch
 create-switch: ## Create opam switch
-	opam switch create . 5.1.0 --deps-only -y
+	opam switch create . 5.1.0 -y --deps-only
 
 .PHONY: init
 init: create-switch install ## Configure everything to develop this repository in local
 
 .PHONY: install
 install: ## Install development dependencies
-	npm install --legacy-peer-deps
+	npm install
 	opam update
-	opam install -y . --deps-only
-	opam pin -y add $(project_name).dev .
+	opam install -y . --deps-only --with-test
 	opam exec opam-check-npm-deps
 
 .PHONY: build

melange-opam-template.opam

@@ -8,14 +8,14 @@ homepage: "https://github.com/your/project"
 bug-reports: "https://github.com/your/project/issues"
 depends: [
   "ocaml" {>= "5.1.0"}
-  "reason" {>= "3.9.0" & < "3.10.0"}
+  "reason" {>= "3.10.0"}
   "dune" {>= "3.8"}
-  "melange" {>= "1.0.0" & < "2.0.0"}
-  "reason-react-ppx" {>= "0.12.0" & < "0.13.0"}
-  "reason-react" {>= "0.12.0"}
-  "opam-check-npm-deps" {dev} # todo: use with-dev-setup once 2.2 is out
-  "ocaml-lsp-server" {dev}
-  "dot-merlin-reader" {dev}
+  "melange" {>= "2.0.0"}
+  "reason-react" {>= "0.13.0"}
+  "reason-react-ppx"
+  "opam-check-npm-deps" {with-test} # todo: use with-dev-setup once opam 2.2 is out
+  "ocaml-lsp-server" {with-test} # todo: use with-dev-setup once opam 2.2 is out
+  "dot-merlin-reader" {with-test} # todo: use with-dev-setup once opam 2.2 is out
   "odoc" {with-doc}
 ]
 dev-repo: "git+https://github.com/your/project.git"

src/dune

@@ -4,7 +4,7 @@
  (libraries reason-react world)
  (modules :standard \ hello)
  (preprocess
-  (pps reason-react-ppx))
+  (pps melange.ppx reason-react-ppx))
  (module_systems es6))
 
 (melange.emit