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rails--rails/railties/lib/rails.rb
2016-07-12 12:21:36 +05:30

111 lines
3.2 KiB
Ruby

require 'rails/ruby_version_check'
require 'pathname'
require 'active_support'
require 'active_support/dependencies/autoload'
require 'active_support/core_ext/kernel/reporting'
require 'active_support/core_ext/module/delegation'
require 'active_support/core_ext/array/extract_options'
require 'rails/application'
require 'rails/version'
require 'active_support/railtie'
require 'action_dispatch/railtie'
# UTF-8 is the default internal and external encoding.
silence_warnings do
Encoding.default_external = Encoding::UTF_8
Encoding.default_internal = Encoding::UTF_8
end
module Rails
extend ActiveSupport::Autoload
autoload :Info
autoload :InfoController
autoload :MailersController
autoload :WelcomeController
class << self
@application = @app_class = nil
attr_writer :application
attr_accessor :app_class, :cache, :logger
def application
@application ||= (app_class.instance if app_class)
end
delegate :initialize!, :initialized?, to: :application
# The Configuration instance used to configure the Rails environment
def configuration
application.config
end
def backtrace_cleaner
@backtrace_cleaner ||= begin
# Relies on Active Support, so we have to lazy load to postpone definition until AS has been loaded
require 'rails/backtrace_cleaner'
Rails::BacktraceCleaner.new
end
end
# Returns a Pathname object of the current Rails project,
# otherwise it returns nil if there is no project:
#
# Rails.root
# # => #<Pathname:/Users/someuser/some/path/project>
def root
application && application.config.root
end
# Returns the current Rails environment.
#
# Rails.env # => "development"
# Rails.env.development? # => true
# Rails.env.production? # => false
def env
@_env ||= ActiveSupport::StringInquirer.new(ENV["RAILS_ENV"] || ENV["RACK_ENV"] || "development")
end
# Sets the Rails environment.
#
# Rails.env = "staging" # => "staging"
def env=(environment)
@_env = ActiveSupport::StringInquirer.new(environment)
end
# Returns all Rails groups for loading based on:
#
# * The Rails environment;
# * The environment variable RAILS_GROUPS;
# * The optional envs given as argument and the hash with group dependencies;
#
# groups assets: [:development, :test]
#
# # Returns
# # => [:default, :development, :assets] for Rails.env == "development"
# # => [:default, :production] for Rails.env == "production"
def groups(*groups)
hash = groups.extract_options!
env = Rails.env
groups.unshift(:default, env)
groups.concat ENV["RAILS_GROUPS"].to_s.split(",")
groups.concat hash.map { |k, v| k if v.map(&:to_s).include?(env) }
groups.compact!
groups.uniq!
groups
end
# Returns a Pathname object of the public folder of the current
# Rails project, otherwise it returns nil if there is no project:
#
# Rails.public_path
# # => #<Pathname:/Users/someuser/some/path/project/public>
def public_path
application && Pathname.new(application.paths["public"].first)
end
end
end