mdl: use bundlerApp

pkgs/development/tools/misc/mdl/default.nix

@@ -1,15 +1,15 @@
-{ lib, bundlerEnv, ruby }:
+{ lib, bundlerApp }:
 
-bundlerEnv {
-  inherit ruby;
+bundlerApp {
   pname = "mdl";
   gemdir = ./.;
+  exes = [ "mdl" ];
 
   meta = with lib; {
     description = "A tool to check markdown files and flag style issues";
     homepage = https://github.com/markdownlint/markdownlint;
     license = licenses.mit;
-    maintainers = with maintainers; [ gerschtli ];
+    maintainers = with maintainers; [ gerschtli manveru ];
     platforms = platforms.all;
   };
 }

pkgs/development/tools/misc/mdl/gemset.nix

@@ -1,5 +1,7 @@
 {
   kramdown = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "1n1c4jmrh5ig8iv1rw81s4mw4xsp4v97hvf8zkigv4hn5h542qjq";
@@ -9,6 +11,8 @@
   };
   mdl = {
     dependencies = ["kramdown" "mixlib-cli" "mixlib-config"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "047hp8z1ma630wp38bm1giklkf385rp6wly8aidn825q831w2g4i";
@@ -17,6 +21,8 @@
     version = "0.5.0";
   };
   mixlib-cli = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "0647msh7kp7lzyf6m72g6snpirvhimjm22qb8xgv9pdhbcrmcccp";
@@ -26,6 +32,8 @@
   };
   mixlib-config = {
     dependencies = ["tomlrb"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "1gm6yj9cbbgsl9x4xqxga0vz5w0ksq2jnq1wj8hvgm5c4wfcrswb";
@@ -34,6 +42,8 @@
     version = "2.2.18";
   };
   tomlrb = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "0g28ssfal6vry3cmhy509ba3vi5d5aggz1gnffnvvmc8ml8vkpiv";