Rakefile.rb snippet for environments (dev and adhoc). Based on https://gist.github.com/bensheldon/5521403. See https://groups.google.com/forum/?fromgroups=#!topic/rubymotion/OUuhiClJ0EY

Rakefile-snippet-env-dev-adhoc.rb

env = if ENV['dev'] == '1'
		'dev'
	  elsif ENV['adhoc'] == '1'
		'adhoc'
	  else
		'dev' #default
	  end
 
if env == 'dev'
  app.codesign_certificate = 'iPhone Developer: Hwee Boon Yar (something)'
  app.provisioning_profile = 'full path to mobileprovision'
  app.entitlements['get-task-allow'] = true
elsif env == 'adhoc'
  app.codesign_certificate = 'iPhone Distribution: Hwee Boon Yar'
  app.provisioning_profile = 'full path to mobileprovision'
  app.entitlements['get-task-allow'] = false
end

This uses some of the built in RubyMotion environment methods:

Motion::Project::App.setup do |app|
  # `rake`, `rake simulator`, `rake device`
  app.development do
    app.codesign_certificate = 'iPhone Developer: Hwee Boon Yar (something)'
    app.provisioning_profile = 'full path to mobileprovision'
    app.entitlements['get-task-allow'] = true
  end

  # `rake archive:distribution`
  app.release do
    app.entitlements['get-task-allow'] = false

    if ENV['adhoc'] 
      # can be entered in console with `adhoc=foo` or in a raketask with `ENV['adhoc']=true`
      app.codesign_certificate = 'iPhone Distribution: Hwee Boon Yar'
      app.provisioning_profile = 'full path to mobileprovision'
    else
      # certificate/profile for App Store release
    end
  end

end

This doesn't work for me though because the :testflight task uses :archive which according to https://github.com/HipByte/RubyMotion/blob/master/lib/motion/project.rb doesn't use :release. I assume that is because RubyMotion wants to retain symbols for debugging?

So TestFlight builds will trigger app.development and not get the right code-sign configuration.

All in all, app.development and app.release seems very strange though. I'm not sure it's designed for the right purpose?