move all ruby modules to development/ruby-modules

pkgs/development/ruby-modules/bundix/default.nix

@@ -0,0 +1,44 @@
+{ buildRubyGem, lib, bundler, ruby, nix, nix-prefetch-git }:
+
+buildRubyGem rec {
+  inherit ruby;
+
+  name = "${gemName}-${version}";
+  gemName = "bundix";
+  version = "2.0.8";
+
+  sha256 = "0ikpf2g01izadjpdnc4k2rb9v4g11f1jk2y5alxc7n7rxjkwdc66";
+
+  buildInputs = [bundler];
+
+  postInstall = ''
+    substituteInPlace $GEM_HOME/gems/${gemName}-${version}/lib/bundix.rb \
+      --replace \
+        "'nix-instantiate'" \
+        "'${nix}/bin/nix-instantiate'" \
+      --replace \
+        "'nix-hash'" \
+        "'${nix}/bin/nix-hash'" \
+      --replace \
+        "'nix-prefetch-url'" \
+        "'${nix}/bin/nix-prefetch-url'" \
+      --replace \
+        "'nix-prefetch-git'" \
+        "'${nix-prefetch-git}/bin/nix-prefetch-git'"
+  '';
+
+  meta = {
+    inherit version;
+    description = "Creates Nix packages from Gemfiles";
+    longDescription = ''
+      This is a tool that converts Gemfile.lock files to nix expressions.
+
+      The output is then usable by the bundlerEnv derivation to list all the
+      dependencies of a ruby package.
+    '';
+    homepage = "https://github.com/manveru/bundix";
+    license = "MIT";
+    maintainers = with lib.maintainers; [ manveru zimbatm ];
+    platforms = lib.platforms.all;
+  };
+}