# File lib/rake.rb, line 2160
2160:     def collect_tasks
2161:       @top_level_tasks = []
2162:       ARGV.each do |arg|
2163:         if arg =~ /^(\w+)=(.*)$/
2164:           ENV[$1] = $2
2165:         else
2166:           @top_level_tasks << arg
2167:         end
2168:       end
2169:       @top_level_tasks.push("default") if @top_level_tasks.size == 0
2170:     end