# File lib/rake.rb, line 2426
2426:     def collect_tasks
2427:       @top_level_tasks = []
2428:       ARGV.each do |arg|
2429:         if arg =~ /^(\w+)=(.*)$/
2430:           ENV[$1] = $2
2431:         else
2432:           @top_level_tasks << arg unless arg =~ /^-/
2433:         end
2434:       end
2435:       @top_level_tasks.push("default") if @top_level_tasks.size == 0
2436:     end