mina script for Phoenix deployment

deploy.rb

require 'mina/git'

set :domain, 'your_domain'
set :deploy_to, 'your_path_on_server'
set :repository, 'your_git'
set :branch, 'master'
set :app_name, 'your_app_name'

set :shared_paths, ['log']

set :user, 'your_user'
set :forward_agent, true
set :env_vars, "MIX_ENV=prod PORT=4001"

set :log_path, "#{deploy_to}/#{current_path}/rel/#{app_name}/log"
set :shared_paths, ["rel"]

task :setup do
  queue! %[mkdir -p "#{deploy_to}/#{shared_path}/log"]
  queue! %[chmod g+rx,u+rwx "#{deploy_to}/#{shared_path}/log"]
end

desc "Deploys the current version to the server."
task :deploy do
  deploy do
    invoke :'git:clone'
    invoke :'deploy:link_shared_paths'
    queue %[mix deps.get]
    queue %[npm install]
    queue %[sudo npm install -g brunch]
    queue %[brunch build]
    queue %[mix phoenix.digest]
    queue %[mix release]
    queue %[mix ecto.migrate]

    to :launch do
      # invoke :'elixir:restart'
    end
  end
end

elixir_commands = [:start, :stop, :ping, :restart, :console]
namespace :elixir do
  elixir_commands.each do |cmd|
    desc "elixir command[#{cmd}]"
    task cmd do
      queue %[cd #{deploy_to}/#{current_path}/rel/#{app_name}/bin && pwd && ./#{app_name} #{cmd}]
    end
  end
end

task :logs do
  queue 'echo "Contents of the log file are as follows:"'
  queue "tail -f `/bin/ls -1td #{log_path}/*| /usr/bin/head -n1`"
end