Maestro

bootstrap.rb

module Maestro
  class Bootstrap
    attr_reader :project_name, :org_name, :app_type

    def initialize project_name, org_name, options = {}
      @project_name = project_name
      @org_name = org_name
      @app_type = options[:type]
    end

    def nginx_config
      template = File.read File.dirname(__FILE__) + '/templates/nginx'
      template.sub /SERVER_NAME/, server_name
      template.gsub /DIRECTORY/, "#{root_directory}/public"
      template.gsub /UPSTREAM_NAME/, "#{project_name}_app"
      File.write "/usr/local/etc/nginx/sites-available/#{domain}", template
      FileUtils.ln_sf "/usr/local/etc/nginx/sites-available/#{domain}", "/usr/local/etc/nginx/sites-enabled/#{domain}"
    end

    def add_dns
      dns = File.read "/etc/hosts"
      dns.sub!(/127.0.0.1\t(.*)\n/, "127.0.0.1\t\1 #{server_name}\n"
      File.write "/etc/hosts", dns
    end

    def add_foreman_line
      sheet_music = read_maestro_sheet
      sheet_music << "#{org_name}.#{project_name}: cd #{root_directory} && #{startup_line}\n"
      File.write File.expand_path("~/.maestro"), sheet_music
    end

    def server_name
      "#{domain}.dev"
    end

    def root_directory
      "/Users/cadwallion/code/#{org_name}/#{project_name}"
    end

    def domain
      "#{project_name}.#{org_name}"
    end



    def read_maestro_sheet
      if File.exists? File.expand_path "~/.maestro"
        File.read File.expand_path "~/.maestro"
      else
        ""
      end
    end

    def startup_line
      case app_type
      when :thin
        "thin start -S tmp/sockets/development.sock -P tmp/pids/development.pid"
      when :unicorn
        "unicorn_rails -c config/unicorn.rb"
      end
    end
  end
end

maestro.rb

#!/usr/bin/env ruby

require 'thor'
require 'maestro'

module Maestro
  class CLI < Thor
    include Thor::Actions

    desc "Adds an application to Maestro"
    method_option type: "unicorn", aliases: '-app'
    def add name
      org_name, project_name = name.split("/")
      bootstrap = Bootstrap.new project_name, org_name, type: options[:type].to_sym
      puts "Adding nginx conf for #{project_name}.#{org_name}.dev..."
      bootstrap.nginx_config
      puts "Adding /etc/hosts line for #{project_name}.#{org_name}.dev..."
      bootstrap.add_dns
      puts "Adding #{options[:type]} config to Maestro startup scripts..."
      bootstrap.add_foreman_line
      puts "Done! You may start this app with `maestro start articulate.codename`."
    end

    desc "Starts an application using Foreman"
    def start name
      IO.popen("foreman start #{name} -f ~/.maestro", 'r+') do |process|
        process.close_write
        puts process.gets until process.eof?
      end
    end
  end
end

Maestro::CLI.start