Question

At the command line I can run multiple tasks like this

rake environment task1 task2 task3

How can I do this programmatically? I know that I can run one task like this

Rake::Task['task1'].invoke

Answer 1

You can call two tasks:

require 'rake'

task :task1 do |t|
  p t
end
task :task2 do |t|
  p t
end


Rake::Task["task1"].invoke
Rake::Task["task2"].invoke

I would prefer a new tast with prerequisites:

require 'rake'

task :task1 do |t|
  p t
end
task :task2 do |t|
  p t
end
desc "Common task"
task :all => [ :task1, :task2  ]
Rake::Task["all"].invoke

If I misunderstood your question and you want to execute the same task twice: You can reenable tasks:

require 'rake'

task :task1 do |t|
  p t
end
Rake::Task["task1"].invoke
Rake::Task["task1"].reenable
Rake::Task["task1"].invoke