How do I invoke one Capistrano task from another?

Question

For example:

task :foo do
  # stuff
end

task :bar do
  # INVOKE :foo
end

score 104 · Answer 1 · edited Apr 05 '14 at 14:27

104

For the record: in the Capistrano 3, use invoke(), e.g.

desc "Task that does something"
task :do_something do
  invoke 'namespace:task'
end

edited Apr 05 '14 at 14:27

notapatch

answered Jul 02 '13 at 09:22

Ain Tohvri

12

just a note: `invoke` must be directly inside the `task`, no `on`, `within` or other blocks. otherwise it won't work. – Don Giulio Nov 30 '13 at 00:15
How would you reuse a task within a another task's block? – kaizenCoder May 16 '14 at 05:18
@aspiringCodeArtisan, one of use cases is creating general task for a series of small ones. – Ivan Kolmychek Jul 15 '14 at 14:16

score 34 · Accepted Answer · answered Dec 03 '10 at 18:20

34

You can do it by using namespace:

namespace :test do
  task :one do
  end
  task :two do
    test.one
    #or just directly call it:
    one
  end
end

Just be careful with the name you use to not overwrite some important function.

answered Dec 03 '10 at 18:20

mpapis

4

So why doesn't this work? `task :d, :roles => [:app] do deploy end` – Michiel de Mare Jul 05 '12 at 15:33
A side note: you should not use the `test` namespace as it shadows an existing Capistrano method with that name. You'll get an `ArgumentError` raised. – Maciej Biłas Jan 03 '13 at 10:14
yeah sorry for that, it was only example, I have assumed you will pick some more meaningful namespace. – mpapis Jan 03 '13 at 18:39

score 5 · Answer 3 · answered Dec 02 '10 at 19:32

5

Generally you do this by defining dependencies:

before :bar, :foo

answered Dec 02 '10 at 19:32

tadman

score 2 · Answer 4 · answered Feb 05 '14 at 15:14

2

you also could use Rake::Task["namespace:task"].invoke, this works

answered Feb 05 '14 at 15:14

andi

score 1 · Answer 5 · answered Sep 08 '13 at 08:57

1

If the task lives in another namespace, you can use find_and_execute_task instead.

answered Sep 08 '13 at 08:57

troelskn

5 Answers5