mina-nvm.rb

require 'mina/git'
require 'json'

set :domain, '0.0.0.0'
set :user, 'nodejs'
set :deploy_to, '/home/nodejs/api'
set :repository, 'git@.../api.git'
set :branch, 'master'
set :shared_paths, [ 'tmp' ]
set :term_mode, :pretty

set_default :node_version, 'stable'

task :setup do
  invoke :'nvm'
end

task :environment do
  invoke :'nvm:load'
end

task :deploy => :environment do
  deploy do
    invoke :'git:clone'
    invoke :'nvm:install'
    invoke :'npm:install'
    invoke :'deploy:cleanup'
    to :launch do
      # invoke :'process:restart'
    end
  end
end

task :nvm do
  queue 'echo "-----> Installing Node Version Manager"'
  queue 'curl -s https://raw.github.com/creationix/nvm/master/install.sh | sh'
  invoke :'nvm:load'
end

namespace :nvm do
  task :load do
    queue 'echo "-----> Loading nvm"'
    queue %{
      source ~/.nvm/nvm.sh
    }
    queue 'echo "-----> Now using nvm v.`nvm --version`"'
  end

  task :install do

    # Specifying a Node.js version
    # copy from: https://devcenter.heroku.com/articles/nodejs-support#specifying-a-node-js-version
    # 
    # Use the engines section of your package.json
    # {
    #   "name": "myapp",
    #   "description": "a really cool app",
    #   "version": "0.0.1",
    #   "engines": {
    #     "node": "0.10.x"
    #   }
    # }
    
    package = File.read("package.json")
    config = JSON.parse(package)
    if config['engines'] && config['engines']['node']
      set :node_version, config['engines']['node']
    end

    # Install Node.js via Node Version Manager
    # and symlink it to project_dir/.bin

    queue %{
      echo "-----> Install node v.#{node_version!}"
      nvm install #{node_version!}
      ln -s ${NVM_BIN} ./.bin
    }
  end
      
end