drake: use bundlerApp

pkgs/development/tools/build-managers/drake/Gemfile.lock

@@ -12,4 +12,4 @@ DEPENDENCIES
   drake
 
 BUNDLED WITH
-   1.13.7
+   1.17.2

pkgs/development/tools/build-managers/drake/default.nix

@@ -1,18 +1,15 @@
-{ lib, bundlerEnv, ruby }:
+{ lib, bundlerApp }:
 
-bundlerEnv {
-  name = "drake-0.9.2.0.3.1";
-
-  inherit ruby;
-  gemfile = ./Gemfile;
-  lockfile = ./Gemfile.lock;
-  gemset = ./gemset.nix;
+bundlerApp {
+  pname = "drake";
+  gemdir = ./.;
+  exes = [ "drake" ];
 
   meta = with lib; {
     description = "A branch of Rake supporting automatic parallelizing of tasks";
     homepage = http://quix.github.io/rake/;
+    maintainers = with maintainers; [ romildo manveru ];
     license = licenses.mit;
     platforms = platforms.unix;
-    maintainers = with maintainers; [ romildo ];
   };
 }

pkgs/development/tools/build-managers/drake/gemset.nix

@@ -1,5 +1,7 @@
 {
   comp_tree = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "0dj9lkfxcczn67l1j12dcxswrfxxd1zgxa344zk6vqs2gwwhy9m9";
@@ -8,6 +10,9 @@
     version = "1.1.3";
   };
   drake = {
+    dependencies = ["comp_tree"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "09gkmdshwdmdnkdxi03dv4rk1dip0wdv6dx14wscrmi0jyk86yag";