How to run Rake tasks from within Rake tasks?

by

If you need the task to behave as a method, how about using an actual method?

task :build => [:some_other_tasks] do
  build
end

task :build_all do
  [:debug, :release].each { |t| build t }
end

def build(type = :debug)
  # ...
end

If you’d rather stick to rake‘s idioms, here are your possibilities, compiled from past answers:

  • This always executes the task, but it doesn’t execute its dependencies:

    Rake::Task["build"].execute

  • This one executes the dependencies, but it only executes the task if
    it has not already been invoked:

    Rake::Task["build"].invoke

  • This first resets the task’s already_invoked state, allowing the task to
    then be executed again, dependencies and all:

    Rake::Task["build"].reenable
Rake::Task["build"].invoke

  • Note that dependencies already invoked are not automatically re-executed unless they are re-enabled. In Rake >= 10.3.2, you can use the following to re-enable those as well:

    Rake::Task["build"].all_prerequisite_tasks.each(&:reenable)

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