How can I tell if Rails code is being run via rake or script/generate?

Question

I've got a plugin that is a bit heavy-weight. (Bullet, configured with Growl notifications.) I'd like to not enable it if I'm just running a rake task or a generator, since it's not useful in those situations. Is there any way to tell if that's the case?

Answer 1

It's as simple as that:

if $rails_rake_task   puts 'Guess what, I`m running from Rake' else   puts 'No; this is not a Rake task' end 

Rails 4+

Instead of $rails_rake_task, use:

File.basename($0) == 'rake' 

Answer 2

I like NickMervin's answer better, because it does not depend on the internal implementation of Rake (e.g. on Rake's global variable).

This is even better - no regexp needed

  File.split($0).last == 'rake' 

File.split() is needed, because somebody could start rake with it's full path, e.g.:

  /usr/local/bin/rake taskname