Basic cap script

deploy.rb

require 'net/https'
require 'json'

set :stages, %w(production staging)
set :default_stage, "staging"
require 'capistrano/ext/multistage'
require 'bundler/capistrano'

default_run_options[:pty] = true

set :application, 'porpoise'
set :repository,  "git@bitbucket.org:fairfax/china-#{application}.git"
set :scm, :git
set :scm_verbose, true

set :deploy_via, :remote_cache # A checked-out copy of the repo that is then updated and copied as necessary.

set :bundle_cmd, "/var/lib/gems/1.9.1/bin/bundle"

# Use the local user's keys for convenience. (May not be applicable here.)
set :ssh_options, { forward_agent: false }

set :runner, "updatebot"
set :user, "updatebot"
set :use_sudo, false

ssh_options[:keys] = %w(~/.ssh/updatebot_ssh)
ssh_options[:user] = "updatebot"
ssh_options[:port] = 22
ssh_options[:forward_agent] = false

namespace :deploy do

  task :full do
    update_code
    assets
    check_env
    uploads_symlink
    symlink
    setup_db
    restart
  end

  task :assets do
    run "cd #{release_path} && RAILS_ENV=#{rails_env} /var/lib/gems/1.9.1/bin/bundle exec rake assets:precompile"
  end

  task :check_env do
    # Will it float?
    run "if [ ! -d #{shared_path}/pids ]; then mkdir -p #{shared_path}/pids; fi"
  end

  task :uploads_symlink do
    run "if [ ! -L #{release_path}/public/images ]; then rm -rf #{release_path}/public/images; fi"
    run "if [ ! -e #{release_path}/public/images ]; then ln -sv #{shared_path}/images #{release_path}/public/images; fi"
  end

  task :restart, except: { no_release: true } do
    run "touch #{release_path}/tmp/restart.txt"
  end

  task :setup_db do
    run "cd #{current_path} && RAILS_ENV=#{rails_env} /var/lib/gems/1.9.1/bin/bundle exec rake db:setup"
  end

end