Class: InstanceGenerator

Inherits:
Rails::Generator::Base
  • Object
show all
Defined in:
lib/generators/instance/instance_generator.rb

Constant Summary collapse

DEFAULT_SHEBANG = 
File.join(Config::CONFIG['bindir'],
Config::CONFIG['ruby_install_name'])
DATABASES = 
%w( mysql postgresql sqlite3 sqlserver )
MYSQL_SOCKET_LOCATIONS = 
[
  "/tmp/mysql.sock",                        # default
  "/var/run/mysqld/mysqld.sock",            # debian/gentoo
  "/var/tmp/mysql.sock",                    # freebsd
  "/var/lib/mysql/mysql.sock",              # fedora
  "/opt/local/lib/mysql/mysql.sock",        # fedora
  "/opt/local/var/run/mysqld/mysqld.sock",  # mac + darwinports + mysql
  "/opt/local/var/run/mysql4/mysqld.sock",  # mac + darwinports + mysql4
  "/opt/local/var/run/mysql5/mysqld.sock"   # mac + darwinports + mysql5
]

Instance Method Summary collapse

Constructor Details

#initialize(runtime_args, runtime_options = {}) ⇒ InstanceGenerator

Returns a new instance of InstanceGenerator.



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# File 'lib/generators/instance/instance_generator.rb', line 30

def initialize(runtime_args, runtime_options = {})
  super
  usage if args.empty?
  usage("Databases supported for preconfiguration are: #{DATABASES.join(", ")}") if (options[:db] && !DATABASES.include?(options[:db]))
  @destination_root = args.shift
  @app_name = File.basename(File.expand_path(@destination_root))  
end

Instance Method Details

#after_generate ⇒ Object 



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# File 'lib/generators/instance/instance_generator.rb', line 122

def after_generate
  Rails::Generator::Scripts::Generate.new.run(%w{extension site}, :destination => "#{@destination_root}/")
  File.rename("#{@destination_root}/config/initializers/session_store.rb", "#{@destination_root}/vendor/extensions/site/config/initializers/session_store.rb")
  puts File.read("#{@destination_root}/INSTALL") unless options[:pretend]
end

#manifest ⇒ Object 



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# File 'lib/generators/instance/instance_generator.rb', line 38

def manifest
  
  md5 = Digest::MD5.new
  now = Time.now
  md5 << now.to_s
  md5 << String(now.usec)
  md5 << String(rand(0))
  md5 << String($$)
  md5 << @app_name
 
  # Do our best to generate a secure secret key for CookieStore
  secret = ActiveSupport::SecureRandom.hex(64)
      
  # The absolute location of the Spree files
  root = File.expand_path(SPREE_ROOT) 
  
  # Use /usr/bin/env if no special shebang was specified
  script_options     = { :chmod => 0755, :shebang => options[:shebang] == DEFAULT_SHEBANG ? nil : options[:shebang] }
  dispatcher_options = { :chmod => 0755, :shebang => options[:shebang] }
  
  record do |m|
    # Root directory
    m.directory ""
    
    # Standard files and directories
    base_dirs = %w(config config/environments config/initializers db log script public vendor/plugins vendor/extensions)
    text_files = %w(CHANGELOG CONTRIBUTORS LICENSE INSTALL README.markdown)
    environments = Dir["#{root}/config/environments/*.rb"]
    scripts = Dir["#{root}/script/**/*"].reject { |f| f =~ /(destroy|generate)$/ }
    public_files = ["public/.htaccess.example"] + Dir["#{root}/public/**/*"]
    frozen_gems =  Dir["#{root}/vendor/gems/**/*"]
    
    files = base_dirs + text_files + environments + scripts + public_files + frozen_gems
    files.map! { |f| f = $1 if f =~ %r{^#{root}/(.+)$}; f }
    
    files.sort!
    
    files.each do |file|
      case
      when File.directory?("#{root}/#{file}")
        m.directory file
      when file =~ %r{^script/}
        m.file spree_root(file), file, script_options
      when file =~ %r{^public/dispatch}
        m.file spree_root(file), file, dispatcher_options
      when file =~ %r{^public/robots\.txt}
        # we'll use a special robots.txt if creating a demo instance
        m.file spree_root(file), file unless options[:demo]
      else
        m.file spree_root(file), file
      end
    end
    
    # script/generate
    m.file "instance_generate", "script/generate", script_options
    
    # database.yml and .htaccess
    m.template "databases/#{options[:db]}.yml", "config/database.yml", :assigns => {
      :app_name => File.basename(File.expand_path(@destination_root)),
      :socket   => options[:db] == "mysql" ? mysql_socket_location : nil
    }

    # Instance Rakefile
    m.file "instance_rakefile", "Rakefile"

    # Instance Configurations
    m.file "instance_routes.rb", "config/routes.rb"
    m.file "../../../../db/seeds.rb", "db/seeds.rb"
    m.template "../../../../config/environment.rb", "config/environment.rb", :assigns => { :app_name => @app_name, :app_secret_key_to_be_replaced_in_real_app_by_generator => secret }
    m.file "../../../../config/boot.rb", "config/boot.rb"
    m.template "session_store.rb", "config/initializers/session_store.rb", :assigns => { :app_name => @app_name, :app_secret_key_to_be_replaced_in_real_app_by_generator => secret }
    %w{backtrace_silencers inflections locales mime_types new_rails_defaults paperclip spree compass}.each do |initializer|
      m.file "../../../../config/initializers/#{initializer}.rb", "config/initializers/#{initializer}.rb" 
    end
    m.file "../../../../config/spree_permissions.yml", "config/spree_permissions.yml"
    
    # Demo Configuration
    if options[:demo]
      m.file "demo_mongrel_cluster.yml", "config/mongrel_cluster.yml"
      m.file "demo_robots.txt", "public/robots.txt"
    end
  end
end