How to call rake from ruby code

The following is a method to execute rake tasks from ruby code

:

#arguments can be for example db:migrate
def call_rake(arguments)
    if RUBY_PLATFORM =~ /mswin/
      rake_cmd = "rake.bat" #very important because windows will break with just "rake"
    else
      rake_cmd = "rake"
    end
    puts "calling #{rake_cmd} " + arguments
    puts system("#{rake_cmd} " + arguments)
    puts $?
  end

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