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執行個體公有方法

boot_application!()

來源：顯示 | GitHub

# File railties/lib/rails/command/actions.rb, line 18
def boot_application!
  require_application!
  Rails.application.require_environment! if defined?(APP_PATH)
end

load_environment_config!()

來源：顯示 | GitHub

# File railties/lib/rails/command/actions.rb, line 23
def load_environment_config!
  require_application!
  # Only run initializers that are in the :all group, which includes the
  # :load_environment_config initializer.
  Rails.application.initialize!(:_) if defined?(APP_PATH)
end

load_generators()

來源：顯示 | GitHub

# File railties/lib/rails/command/actions.rb, line 36
def load_generators
  engine = ::Rails::Engine.find(ENGINE_ROOT)
  Rails::Generators.namespace = engine.railtie_namespace
  engine.load_generators
end

load_tasks()

來源：顯示 | GitHub

# File railties/lib/rails/command/actions.rb, line 31
def load_tasks
  Rake.application.init("rails")
  Rake.application.load_rakefile
end

require_application!()

來源：顯示 | GitHub

# File railties/lib/rails/command/actions.rb, line 13
def require_application!
  require ENGINE_PATH if defined?(ENGINE_PATH)
  require APP_PATH if defined?(APP_PATH)
end

set_application_directory!()

目前目錄中若沒有 config.ru 檔案，則變更為應用程式路徑。這讓我們可以從其他目錄執行 rails server，但仍能取得 config.ru 並正確設定 tmp 目錄。

來源：顯示 | GitHub

# File railties/lib/rails/command/actions.rb, line 9
def set_application_directory!
  Dir.chdir(File.expand_path("../..", APP_PATH)) unless File.exist?(File.expand_path("config.ru"))
end