3 files changed, 32 insertions, 0 deletions
diff --git a/pkgs/development/tools/ocaml/crunch/default.nix b/pkgs/development/tools/ocaml/crunch/default.nix
new file mode 100644
index 00000000000..e48707dcb9a
--- /dev/null
+++ b/pkgs/development/tools/ocaml/crunch/default.nix
@@ -0,0 +1,28 @@
+{ lib, buildDunePackage, fetchurl, ocaml, cmdliner, opaline, ptime }:
+
+buildDunePackage rec {
+
+  pname = "crunch";
+  version = "3.1.0";
+
+  src = fetchurl {
+    url = "https://github.com/mirage/ocaml-crunch/releases/download/v${version}/crunch-v${version}.tbz";
+    sha256 = "0d26715a4h9r1wibnc12xy690m1kan7hrcgbb5qk8x78zsr67lnf";
+  };
+
+  propagatedBuildInputs = [ cmdliner ptime ];
+
+  outputs = [ "lib" "bin" "out" ];
+
+  installPhase = ''
+    ${opaline}/bin/opaline -prefix $bin -libdir $lib/lib/ocaml/${ocaml.version}/site-lib/
+  '';
+
+  meta = {
+    homepage = "https://github.com/mirage/ocaml-crunch";
+    description = "Convert a filesystem into a static OCaml module";
+    license = lib.licenses.isc;
+    maintainers = [ lib.maintainers.vbgl ];
+  };
+
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index c5ebd0fde5f..1c073743dc2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8569,6 +8569,8 @@ in
 
   ocamlPackages = recurseIntoAttrs ocaml-ng.ocamlPackages;
 
+  ocaml-crunch = ocamlPackages.crunch.bin;
+
   ocamlformat = callPackage ../development/tools/ocaml/ocamlformat { };
 
   orc = callPackage ../development/compilers/orc { };
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index ddd13784b5d..b6b7e7bae39 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -185,6 +185,8 @@ let
 
     cpuid = callPackage ../development/ocaml-modules/cpuid { };
 
+    crunch = callPackage ../development/tools/ocaml/crunch { };
+
     cryptokit = callPackage ../development/ocaml-modules/cryptokit { };
 
     cstruct =