/usr/lib/ruby/vendor_ruby/merb-core.rb is in ruby-merb-core 1.1.3+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Add the local gems dir if found within the app root; any dependencies loaded
# hereafter will try to load from the local gems before loading system gems.
root_key = %w[-m --merb-root].detect { |o| ARGV.index(o) }
root = ARGV[ARGV.index(root_key) + 1] if root_key
root = root.to_a.empty? ? Dir.getwd : root
require "bundler"
require "thread"
require "set"
require "fileutils"
require "socket"
require "pathname"
require "extlib"
require "extlib/dictionary"
Thread.abort_on_exception = true
__DIR__ = File.dirname(__FILE__)
$LOAD_PATH.unshift __DIR__ unless
$LOAD_PATH.include?(__DIR__) ||
$LOAD_PATH.include?(File.expand_path(__DIR__))
# Some dependencies tend to require&rescue for optionally required files;
# doing so will load the full rubygems, even though it was just optional.
$MINIGEMS_SKIPPABLE = ['encoding/character/utf-8']
module Merb
# Create stub module for global controller helpers.
module GlobalHelpers; end
class ReservedError < StandardError; end
class << self
attr_reader :exiting
# The list of procs that have been registered with Merb to run when
# Merb exits gracefully.
#
# ==== Returns
# Array:: The current list of procs
#
# :api: private
def at_exit_procs
@at_exit_procs ||= []
end
# Set the current exiting state of Merb. Setting this state to true
# also alerts Extlib to exit and clean up its state.
#
# ==== Returns
# Boolean:: The current exiting state of Merb
#
# :api: private
def exiting=(bool)
Extlib.exiting = bool
@exiting = bool
if bool
if Extlib.const_defined?("Pooling") && Extlib::Pooling.scavenger
Extlib::Pooling.scavenger.wakeup
end
while prc = self.at_exit_procs.pop
prc.call
end unless Merb::Config[:reap_workers_quickly]
end
@exiting
end
# Register a proc to run when Merb is exiting gracefully. It will *not*
# be run when Merb exits quickly.
#
# ==== Returns
# Array:: The current list of procs to run when Merb exits gracefully
#
# :api: plugin
def at_exit(&blk)
self.at_exit_procs << blk
end
# Merge environment settings
#
# This can allow you to have a "localdev" environment that runs like your "development".
# OR
# A "staging" environment that runs identical to your "production" environment.
#
# ==== Examples
# From any environment config file (ie, development.rb, custom.rb, localdev.rb, etc).
# staging.rb:
# Merb.merge_env "production" # We want to use all the settings production uses
# Merb::Config.use do |c|
# c[:log_level] = "debug" # except we want debug log level
# c[:log_stream] = @some_io # and log to this IO handle
# c[:exception_details] = true # and we want to see exception details
# end
#
# ==== Parameters
# env<~String>:: Environment to run like
# use_db<~Boolean>:: Should Merb use the merged environments DB connection
# Defaults to +false+
#
# :api: public
def merge_env(env,use_db=false)
if Merb.environment_info.nil?
Merb.environment_info = {
:real_env => Merb.environment,
:merged_envs => [],
:db_env => Merb.environment
}
end
#Only load if it hasn't been loaded
unless Merb.environment_info[:merged_envs].member? env
Merb.environment_info[:merged_envs] << env
env_file = Merb.dir_for(:config) / "environments" / ("#{env}.rb")
if File.exists?(env_file)
load(env_file)
else
Merb.logger.warn! "Environment file does not exist! #{env_file}"
end
end
# Mark specific environment to load when ORM loads,
# if multiple environments are loaded, the last one
# with use_db as TRUE will be loaded
if use_db
Merb.environment_info[:db_env] = env
end
end
# Start Merb by setting up the Config and then starting the server.
# Set the Merb application environment and the root path.
#
# ==== Parameters
# argv<String, Hash>::
# The config arguments to start Merb with. Defaults to +ARGV+.
#
# :api: public
def start(argv = ARGV)
Merb::Config[:original_log_stream] = Merb::Config[:log_stream]
Merb::Config[:log_stream] ||= STDOUT
if Hash === argv
Merb::Config.setup(argv)
elsif !argv.nil?
Merb::Config.parse_args(argv)
end
# Keep information that we run inside IRB to guard it against overriding in init.rb
@running_irb = Merb::Config[:adapter] == 'irb'
Merb::Config[:log_stream] = STDOUT
Merb.environment = Merb::Config[:environment]
Merb.root = Merb::Config[:merb_root]
case Merb::Config[:action]
when :kill
Merb::Server.kill(Merb::Config[:port], 2)
when :kill_9
Merb::Server.kill(Merb::Config[:port], 9)
when :fast_deploy
Merb::Server.kill("main", "HUP")
else
Merb::Server.start(Merb::Config[:port], Merb::Config[:cluster])
@started = true
end
end
# Start the Merb environment, but only if it hasn't been loaded yet.
#
# ==== Parameters
# argv<String, Hash>::
# The config arguments to start Merb with. Defaults to +ARGV+.
#
# :api: public
def start_environment(argv=ARGV)
start(argv) unless (@started ||= false)
end
# Restart the Merb environment explicitly.
#
# ==== Parameters
# argv<String, Hash>::
# The config arguments to restart Merb with. Defaults to +Merb::Config+.
#
# :api: public
def restart_environment(argv={})
@started = false
start_environment(Merb::Config.to_hash.merge(argv))
end
# :api: public
attr_accessor :environment, :adapter
# :api: private
attr_accessor :load_paths, :environment_info, :started
# :api: public
alias :env :environment
# :api: public
alias :started? :started
Merb.load_paths = Dictionary.new { [Merb.root] } unless Merb.load_paths.is_a?(Dictionary)
# This is the mechanism for setting up your application layout.
# There are three application layouts in Merb:
#
# 1. Regular app/:type layout of Ruby on Rails fame:
#
# app/models for models
# app/mailers for mailers (special type of controllers)
# app/parts for parts, Merb components
# app/views for templates
# app/controllers for controller
# lib for libraries
#
# 2. Flat application layout:
#
# application.rb for models, controllers, mailers, etc
# config/init.rb for initialization and router configuration
# config/framework.rb for framework and dependencies configuration
# views for views
#
# 3. Camping-style "very flat" application layout, where the whole Merb
# application and configs are contained within a single file.
#
# ==== Notes
# Autoloading for lib uses an empty glob by default. If you
# want to have your libraries under lib use autoload, add
# the following to Merb init file:
#
# Merb.push_path(:lib, Merb.root / "lib", "**/*.rb") # glob set explicity.
#
# Then lib/magicwand/lib/magicwand.rb with MagicWand module will
# be autoloaded when you first access that constant.
#
# ==== Examples
# This method gives you a way to build up your own application
# structure, for instance, to reflect the structure Rails
# uses to simplify transition of legacy application, you can
# set it up like this:
#
# Merb.push_path(:model, Merb.root / "app" / "models", "**/*.rb")
# Merb.push_path(:mailer, Merb.root / "app" / "models", "**/*.rb")
# Merb.push_path(:controller, Merb.root / "app" / "controllers", "**/*.rb")
# Merb.push_path(:view, Merb.root / "app" / "views", "**/*.rb")
#
# ==== Parameters
# type<Symbol>:: The type of path being registered (i.e. :view)
# path<String>:: The full path
# file_glob<String>::
# A glob that will be used to autoload files under the path. Defaults to
# "**/*.rb".
#
# :api: public
def push_path(type, path, file_glob = "**/*.rb")
enforce!(type => Symbol)
load_paths[type] = [path, file_glob]
end
# Removes given types of application components
# from load path Merb uses for autoloading.
#
# ==== Parameters
# *args<Array(Symbol)>::
# component(s) names, for instance, :views, :models
#
# ==== Examples
# Using this combined with Merb::GlobalHelpers.push_path you can make
# your Merb application use legacy Rails application components.
#
# Merb.root = "path/to/legacy/app/root"
# Merb.remove_paths(:mailer)
# Merb.push_path(:mailer, Merb.root / "app" / "models", "**/*.rb")
#
# Will make Merb use app/models for mailers just like Ruby on Rails does.
#
# :api: public
def remove_paths(*args)
args.each {|arg| load_paths.delete(arg)}
end
# ==== Parameters
# type<Symbol>:: The type of path to retrieve directory for, e.g. :view.
#
# ==== Returns
# String:: The directory for the requested type.
#
# :api: public
def dir_for(type)
Merb.load_paths[type].first
end
# ==== Parameters
# type<Symbol>:: The type of path to retrieve glob for, e.g. :view.
#
# ===== Returns
# String:: The pattern with which to match files within the type directory.
#
# :api: public
def glob_for(type)
Merb.load_paths[type][1]
end
# ==== Returns
# String:: The Merb root path.
#
# :api: public
def root
@root || Merb::Config[:merb_root] || File.expand_path(Dir.pwd)
end
# ==== Parameters
# value<String>:: Path to the root directory.
#
# :api: public
def root=(value)
@root = value
end
# ==== Parameters
# *path::
# The relative path (or list of path components) to a directory under the
# root of the application.
#
# ==== Returns
# String:: The full path including the root.
#
# ==== Examples
# Merb.root = "/home/merb/app"
# Merb.path("images") # => "/home/merb/app/images"
# Merb.path("views", "admin") # => "/home/merb/app/views/admin"
#
# @public
def root_path(*path)
File.join(root, *path)
end
# Return the Merb Logger object for the current thread.
# Set it up if it does not exist.
#
# :api: public
def logger
Thread.current[:merb_logger] ||= Merb::Logger.new
end
# Removes the logger for the current thread (nil).
#
# :api: public
def reset_logger!
Thread.current[:merb_logger] = nil
end
# ==== Returns
# String::
# The path to the log file.
# If this Merb instance is running as a daemon this will return +STDOUT+.
#
# ==== Notes
# When Merb.testing? the port is modified to become :test - this keeps this
# special environment situation from ending up in the memoized @streams
# just once, thereby never taking changes into account again. Now, it will
# be memoized as :test - and just logging to merb_test.log.
#
# :api: public
def log_stream(port = "main")
port = :test if Merb.testing?
@streams ||= {}
@streams[port] ||= begin
log = if Merb.testing?
log_path / "merb_test.log"
elsif !Merb::Config[:daemonize] && !Merb::Config[:force_logging]
STDOUT
else
log_path / "merb.#{port}.log"
end
if log.is_a?(IO)
stream = log
elsif File.exist?(log)
stream = File.open(log, (File::WRONLY | File::APPEND))
else
FileUtils.mkdir_p(File.dirname(log))
stream = File.open(log, (File::WRONLY | File::APPEND | File::CREAT))
stream.write("#{Time.now.httpdate} #{Merb::Config[:log_delimiter]} " \
"info #{Merb::Config[:log_delimiter]} Logfile created\n")
end
stream.sync = true
stream
end
end
# ==== Returns
# String:: Path to the log directory which contains the log file.
#
# :api: public
def log_path
case Merb::Config[:log_file]
when String then File.dirname(Merb::Config[:log_file])
else Merb.root_path("log")
end
end
# ==== Returns
# String:: The path of root directory of the Merb framework.
#
# :api: public
def framework_root
@framework_root ||= File.dirname(__FILE__)
end
# ==== Returns
# RegExp::
# Regular expression against which deferred actions
# are matched by Rack application handler.
#
# ==== Notes
# Concatenates :deferred_actions configuration option values.
#
# :api: public
def deferred_actions
@deferred ||= begin
if Merb::Config[:deferred_actions].empty?
/^\0$/
else
/#{Merb::Config[:deferred_actions].join("|")}/
end
end
end
# Perform a hard Exit.
# Print a backtrace to the merb logger before exiting if verbose is enabled.
#
# :api: private
def fatal!(str, e = nil)
Merb::Config[:log_stream] = STDOUT if STDOUT.tty?
Merb.reset_logger!
Merb.logger.fatal!
Merb.logger.fatal!("\e[1;31;47mFATAL: #{str}\e[0m")
Merb.logger.fatal!
print_colorized_backtrace(e) if e && Merb::Config[:verbose]
if Merb::Config[:show_ugly_backtraces]
raise e
else
exit(1)
end
end
# Print a colorized backtrace to the merb logger.
#
# :api: private
def print_colorized_backtrace(e)
e.backtrace.map! do |line|
line.gsub(/^#{Merb.framework_root}/, "\e[34mFRAMEWORK_ROOT\e[31m")
end
Merb.logger.fatal! "\e[34mFRAMEWORK_ROOT\e[0m = #{Merb.framework_root}"
Merb.logger.fatal!
Merb.logger.fatal! "\e[31m#{e.class}: \e[1;31;47m#{e.message}\e[0m"
e.backtrace.each do |line|
Merb.logger.fatal! "\e[31m#{line}\e[0m"
end
end
# Set up default variables under Merb
attr_accessor :klass_hashes, :orm, :test_framework, :template_engine
# Returns the default ORM for this application. For instance, :datamapper.
#
# ==== Returns
# <Symbol>:: default ORM.
#
# :api: public
def orm
@orm ||= :none
end
# @deprecated
def orm_generator_scope
Merb.logger.warn!("WARNING: Merb.orm_generator_scope is deprecated!")
return :merb_default if Merb.orm == :none
Merb.orm
end
# Returns the default test framework for this application. For instance :rspec.
#
# ==== Returns
# <Symbol>:: default test framework.
#
# :api: public
def test_framework
@test_framework ||= :rspec
end
# @deprecated
def test_framework_generator_scope
Merb.logger.warn!("WARNING: Merb.test_framework_generator_scope is deprecated")
Merb.test_framework
end
# Returns the default template engine for this application. For instance :haml.
#
# ==== Returns
# <Symbol>:: default template engine.
#
# :api: public
def template_engine
@template_engine ||= :erb
end
Merb.klass_hashes = []
# ==== Returns
# Boolean:: True if Merb is running as an application with bundled gems.
#
# ==== Notes
# Bundling required gems makes your application independent from the
# environment it runs in. It is a good practice to freeze application
# framework and gems and is very useful when application is run in
# some sort of sandbox, for instance, shared hosting with preconfigured gems.
#
# :api: public
def bundled?
$BUNDLE || ENV.key?("BUNDLE")
end
# ==== Returns
# Boolean:: True if Merb is running in debug or verbose mode
#
# :api: public
def verbose_logging?
(ENV['DEBUG'] || $DEBUG || Merb::Config[:verbose]) && Merb.logger
end
# Load configuration and assign the logger.
#
# ==== Parameters
# options<Hash>:: Options to pass on to the Merb config.
#
# ==== Options
# :host<String>:: host to bind to,
# default is 0.0.0.0.
#
# :port<Fixnum>:: port to run Merb application on,
# default is 4000.
#
# :adapter<String>:: name of Rack adapter to use,
# default is "runner"
#
# :rackup<String>:: name of Rack init file to use,
# default is "rack.rb"
#
# :reload_classes<Boolean>:: whether Merb should reload
# classes on each request,
# default is true
#
# :environment<String>:: name of environment to use,
# default is development
#
# :merb_root<String>:: Merb application root,
# default is Dir.pwd
#
# :use_mutex<Boolean>:: turns action dispatch synchronization
# on or off, default is on (true)
#
# :log_delimiter<String>:: what Merb logger uses as delimiter
# between message sections, default is " ~ "
#
# :log_auto_flush<Boolean>:: whether the log should automatically
# flush after new messages are
# added, defaults to true.
#
# :log_stream<IO>:: IO handle for logger. Defaults to STDOUT.
#
# :log_file<String>:: File path for logger. Overrides :log_stream.
#
# :log_level<Symbol>:: logger level, default is :info
#
# :disabled_components<Array[Symbol]>::
# array of disabled component names,
# for instance, to disable json gem,
# specify :json. Default is empty array.
#
# :deferred_actions<Array(Symbol, String)]>::
# names of actions that should be deferred
# no matter what controller they belong to.
# Default is empty array.
#
# Some of these options come from command line on Merb
# application start, some of them are set in Merb init file
# or environment-specific.
#
# :api: public
def load_config(options = {})
Merb::Config.setup(Merb::Config.defaults.merge(options))
Merb::BootLoader::Logger.run
end
# Load all basic dependencies (selected BootLoaders only).
# This sets up Merb framework component paths
# (directories for models, controllers, etc) using
# framework.rb or default layout, loads init file
# and dependencies specified in it and runs before_app_loads hooks.
#
# ==== Parameters
# options<Hash>:: Options to pass on to the Merb config.
#
# :api: public
def load_dependencies(options = {})
load_config(options)
Merb::BootLoader::BuildFramework.run
Merb::BootLoader::Dependencies.run
Merb::BootLoader::BeforeAppLoads.run
end
# Reload application and framework classes.
# See Merb::BootLoader::ReloadClasses for details.
#
# :api: public
def reload
Merb::BootLoader::ReloadClasses.reload
end
# ==== Returns
# Boolean:: True if Merb environment is testing for instance,
# Merb is running with RSpec, Test::Unit of other testing facility.
#
# :api: public
def testing?
$TESTING ||= env?(:test) || Merb::Config[:testing]
end
# Ask the question about which environment you're in.
# ==== Parameters
# env<Symbol, String>:: Name of the environment to query
#
# ==== Examples
# Merb.env #=> production
# Merb.env?(:production) #=> true
# Merb.env?(:development) #=> false
#
# :api: public
def env?(env)
Merb.env == env.to_s
end
# If block was given configures using the block.
#
# ==== Parameters
# &block:: Configuration parameter block, see example below.
#
# ==== Returns
# Hash:: The current configuration.
#
# ==== Notes
# See Merb::GlobalHelpers.load_config for configuration
# options list.
#
# ==== Examples
# Merb.config do
# beer "good"
# hashish :foo => "bar"
# environment "development"
# log_level "debug"
# use_mutex false
# exception_details true
# reload_classes true
# reload_time 0.5
# end
#
# :api: public
def config(&block)
Merb::Config.configure(&block) if block_given?
Config
end
# Disables the given core components, like a Gem for example.
#
# ==== Parameters
# *args:: One or more symbols of Merb internal components.
#
# :api: public
def disable(*components)
disabled_components.push(*components)
end
# ==== Parameters
# Array:: All components that should be disabled.
#
# :api: public
def disabled_components=(components)
disabled_components.replace components
end
# ==== Returns
# Array:: All components that have been disabled.
#
# :api: public
def disabled_components
Merb::Config[:disabled_components] ||= []
end
# ==== Returns
# Boolean:: True if all components (or just one) are disabled.
#
# :api: public
def disabled?(*components)
components.all? { |c| disabled_components.include?(c) }
end
# ==== Returns
# Array(String):: Paths Rakefiles are loaded from.
#
# ==== Notes
# Recommended way to find out what paths Rakefiles
# are loaded from.
#
# :api: public
def rakefiles
@rakefiles ||= []
end
# === Returns
# Array(String):: Paths generators are loaded from
#
# === Notes
# Recommended way to find out what paths generators are loaded from.
#
# :api: public
def generators
@generators ||= []
end
# ==== Parameters
# *rakefiles:: Rakefile paths to add to the list of Rakefiles.
#
# ==== Notes
# Recommended way to add Rakefiles load path for plugins authors.
#
# :api: public
def add_rakefiles(*rakefiles)
@rakefiles ||= []
@rakefiles += rakefiles
end
# ==== Parameters
# *generators:: Generator paths to add to the list of generators.
#
# ==== Notes
# Recommended way to add Generator load paths for plugin authors.
#
# :api: public
def add_generators(*generators)
@generators ||= []
@generators += generators
end
# Install a signal handler for a given signal unless signals have
# been disabled with Merb.disable(:signals)
# ==== Parameters
# signal:: The name of the signal to install a handler for.
# &block:: The block to be run when the given signal is received.
#
# :api: public
def trap(signal, &block)
if Signal.list.include?(signal)
Kernel.trap(signal, &block) unless Merb.disabled?(:signals)
end
end
# :api: plugin
def forking_environment?
!on_windows? && !on_jruby?
end
# :api: plugin
def on_jruby?
RUBY_PLATFORM =~ Merb::Const::JAVA_PLATFORM_REGEXP
end
# :api: plugin
def on_windows?
RUBY_PLATFORM =~ Merb::Const::WIN_PLATFORM_REGEXP
end
def run_later(&blk)
Merb::Dispatcher.work_queue << blk
end
# :api: private
def running_irb?
@running_irb
end
end
end
require "merb-core/autoload"
require "merb-core/server"
require "merb-core/gem_ext/erubis"
require "merb-core/logger"
require "merb-core/version"
require "merb-core/controller/mime"
# Set the environment if it hasn't already been set.
Merb.environment ||= ENV["MERB_ENV"] || Merb::Config[:environment] || (Merb.testing? ? "test" : "development")
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