Capistrano - Setup log directories and database.yml

Updated my deploy.rb gist.

Created a new setup_config task that should be run the first time you setup your server. This fixes the missing database.yml file, and setups the missing log directories in your Rails app.

Also creates a helper method that checks if a remote_file exists.

# config/deploy.rb

before 'deploy:db:symlink_db', 'deploy:setup_config'

def remote_file_exists?(full_path)
    'true' ==  capture("if [ -e #{full_path} ]; then echo 'true'; fi").strip
end

namespace :deploy do
  task :setup_config do
    run "mkdir -p #{deploy_to}/shared/config"
    run "mkdir -p #{deploy_to}/shared/log"
    if remote_file_exists?("#{deploy_to}/shared/config/database.yml")
      puts "database.yml exists, continuing on ..."
    else
      run "cd #{current_release}; cp -u #{current_release}/config/database.yml.example #{deploy_to}/shared/config/database.yml"
    end
  end
end