We have different jobs that require different versions of various ruby gems. To manage this, we use bundler, and I need to run "bundle exec rake ..." instead of running rake directly.

Therefore, I am currently unable to use the rake plugin, and need to execute my rake tasks as a generic shell command.

It would be great if there was a "bundle exec" option (maybe there's a better name, like "use Gemfile") which would handle this via the rake plugin.

Bonus points for provided a "run 'bundle install' first" option (with a text field to specify bundle install options), because I also have to setup all my jobs with an initial build step to execute the shell command "bundle install [some job-dependent args]"