push sheeet

pkgs/development/ocaml-modules/b0/default.nix

@@ -0,0 +1,65 @@
+{
+  lib,
+  stdenv,
+  fetchurl,
+  ocaml,
+  findlib,
+  topkg,
+  ocamlbuild,
+  cmdliner,
+}:
+
+let
+
+in
+lib.throwIfNot (lib.versionAtLeast ocaml.version "4.08")
+  "b0 is not available for OCaml ${ocaml.version}"
+
+  stdenv.mkDerivation
+  rec {
+
+    pname = "ocaml${ocaml.version}-b0";
+    version = "0.0.5";
+
+    src = fetchurl {
+      url = "${meta.homepage}/releases/b0-${version}.tbz";
+      sha256 = "sha256-ty04JQcP4RCme/VQw0ko2IBebWWX5cBU6nRTTeV1I/I=";
+    };
+
+    strictDeps = true;
+
+    nativeBuildInputs = [
+      ocaml
+      findlib
+      ocamlbuild
+      topkg
+    ];
+    buildInputs = [
+      topkg
+      cmdliner
+    ];
+
+    inherit (topkg) buildPhase installPhase;
+
+    meta = with lib; {
+      description = "Software construction and deployment kit";
+      longDescription = ''
+        WARNING this package is unstable and work in progress, do not depend on
+        it.
+        B0 describes software construction and deployments using modular and
+        customizable definitions written in OCaml. B0 describes:
+        * Build environments.
+        * Software configuration, build and testing.
+        * Source and binary deployments.
+        * Software life-cycle procedures.
+        B0 also provides the B00 build library which provides abitrary build
+        abstraction with reliable and efficient incremental rebuilds. The B00
+        library can be – and has been – used on its own to devise domain specific
+        build systems.
+      '';
+      homepage = "https://erratique.ch/software/b0";
+      inherit (ocaml.meta) platforms;
+      license = licenses.isc;
+      maintainers = [ maintainers.Julow ];
+    };
+  }