how to run a custom rake task from mina deployment script

mina, ruby-on-rails-3

Solution

The mina have special syntax for this. From mina console help page:

Server tasks:
  ...
  mina rails[arguments]   # Execute a Rails command in the current deploy
  mina rake[arguments]    # Execute a Rake command in the current deploy
  mina run[command]       # Runs a command in the server
  ...

So from command line:

$ mina 'rake[deploy:backup_db]'

Or define task in mina deploy config file (`config/deploy.rb`):

task :backup_db do
  invoke :'rake[deploy:backup_db]'
end

Problem

i am using mina for deploying my application. I specify the env(staging/production) where i want to deploy the app. ``` mina deploy on=staging --verbose ``` i have saved the app env in deploy.rb as ``` app_env = ENV['on'] || 'staging' ``` i have a rake task that takes production database backup. As of now, i run that rake task explicitly on my console as ``` bundle exec rake deploy:backup_prod_db --trace ``` I want to run that task on every production deployment. How do i do it?

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