I use Capistrano for deploy. My Capistrano tasks are almost quoted from many blogs. I often find following structure.
namespace :deploy do
desc 'Say something before Deploy'
task :initial do
on roles(:app) do
before 'deploy:hoge', 'deploy:bazz'
invoke 'deploy'
end
end
task :hoge do
on roles(:app) do
puts "'hello, world'"
end
end
task :bazz do
on roles(:app) do
puts "'goodnight, world'"
end
end
end
What does before 'deploy:hoge', 'deploy:bazz' do in task statement? It doesn't display any messages. I think before statement must be outside of task statement.
In Capistrano 3.x at least, there is no such thing as a built-in deploy:initial task. Declaring a task with that name does not do anything special.
I think
beforestatement must be outside of task statement.
You are exactly right. Any before and after declarations should be done at the top level and never within a task block.
As it stands, the example that you gave does nothing. If you want to run a certain task before deploy begins, you would hook into the deploy:starting task, like this:
before "deploy:starting", "deploy:hoge"
Furthermore, there is nothing special about the deploy namespace. I recommend declaring your own custom tasks in a different namespace, to keep them visually separated. Then you can easily distinguish between a built-in Capistrano task and your custom ones.
So I would rewrite the example like this:
namespace :myapp do
task :hoge do
on roles(:app) do
puts "'hello, world'"
end
end
task :bazz do
on roles(:app) do
puts "'goodnight, world'"
end
end
end
# Invoke hoge and bazz before deployment begins
before "deploy:starting", "myapp:hoge"
before "deploy:starting", "myapp:bazz"
The full list of built-in Capistrano task that you can use with before and after can be found here: