Before / After Hooks
Where calling on the same task name, executed in order of inclusion
# call an existing task
before :starting, :ensure_user
after :finishing, :notify
# or define in block
namespace :deploy do
before :starting, :ensure_user do
#
end
after :finishing, :notify do
#
end
end
If it makes sense for your use case (often, that means generating a file) the Rake prerequisite mechanism can be used:
desc "Create Important File"
file 'important.txt' do |t|
sh "touch #{t.name}"
end
desc "Upload Important File"
task :upload => 'important.txt' do |t|
on roles(:all) do
upload!(t.prerequisites.first, '/tmp')
end
end
The final way to call out to other tasks is to simply invoke() them:
namespace :example do
task :one do
on roles(:all) { info "One" }
end
task :two do
invoke "example:one"
on roles(:all) { info "Two" }
end
end
This method is widely used.
