ocamlPackages: irmin 2.2.0 → 2.4.0; git: 2.13 → 3.2.0; and related changes (#110184)

* ocamlPackages.index: 1.2.1 -> 1.3.0

* ocamlPackages.decompress: 0.9.0 -> 1.2.0

* ocamlPackages.imagelib-unix: remove at 20191011

* ocamlPackages.imagelib: 20191011 -> 20200929

* ocamlPackages.duff: 0.2 -> 0.3

* ocamlPackages.carton{,-git,-lwt}: init at 0.2.0

* ocamlPackages.encore: 0.5 → 0.7

* ocamlPackages.git-http: remove at 2.1.3

* ocamlPackages.git-unix: move into git directory

* ocamlPackages.irmin-mem: remove at 2.2.0

Replaced by irmin.mem contained in ocamlPackages.irmin >= 2.4.0

* ocamlPackages.git*: 2.1.3 -> 3.2.0

ocamlPackages.git-unix: 2.1.3 -> 3.2.0

ocamlPackages.git-cohttp{,-unix,-mirage}: init at 3.2.0

* ocamlPackages.irmin*: 2.2.0 -> 2.4.0

ocamlPackages.irmin-containers: init at 2.4.0
ocamlPackages.irmin-layers: init at 2.4.0
ocamlPackages.irmin-mirage: init at 2.4.0
ocamlPackages.irmin-mirage-git: init at 2.4.0
ocamlPackages.irmin-mirage-graphql: init at 2.4.0

* ocamlPackages.wodan-irmin: mark as broken

pkgs/development/ocaml-modules/irmin/ppx.nix

@@ -1,23 +1,24 @@
-{ lib, fetchurl, buildDunePackage, ppxlib, ocaml-syntax-shims }:
+{ lib, fetchurl, buildDunePackage, ppxlib, ppx_repr }:
 
 buildDunePackage rec {
   pname = "ppx_irmin";
-  version = "2.2.0";
+  version = "2.4.0";
 
   src = fetchurl {
     url = "https://github.com/mirage/irmin/releases/download/${version}/irmin-${version}.tbz";
-    sha256 = "0gzw918b661qkvd140hilww9jsc49rxsxz1k4iihyvikjn202km4";
+    sha256 = "1b6lav5br1b83cwdc3gj9mqkzhlbfjrbyjx0107zvj54m82dbrxb";
   };
 
-  minimumOCamlVersion = "4.06";
+  minimumOCamlVersion = "4.08";
 
   useDune2 = true;
 
-  buildInputs = [ ocaml-syntax-shims ];
-  propagatedBuildInputs = [ ppxlib ];
+  propagatedBuildInputs = [
+    ppx_repr
+    ppxlib
+  ];
 
   # tests depend on irmin, would create mutual dependency
-  # opt to test irmin instead of ppx_irmin
   doCheck = false;
 
   meta = {