<commit_before>require 'active_support/core_ext/array/extract_options'
require 'active_support/core_ext/hash/indifferent_access'
require 'active_support/core_ext/hash/keys'
require 'active_support/core_ext/hash/reverse_merge'
require 'addressable/uri'

# Example that uses the process's environment:
#     module Conker
#       setup_config!(Rails.env, :A_SECRET => api_credential)
#     end
#
# Example that uses a supplied hash of values (e.g. read from some file or
# database):
#     config_values = {:A_SECRET => 'very_secret'}
#     module Conker
#       setup_config!(Rails.env, config_values, :A_SECRET => api_credential)
#     end
#
# For convenience, if your config file is YAML, you can supply the path
# directly and Conker will load and parse the file:
#     module Conker
#       setup_config!(Rails.env, 'config_values.yml', :A_SECRET => api_credential)
#     end
module Conker
  ENVIRONMENTS = %w(production development test)
  DUMMY_API_KEY = 'dummy_api_key'.freeze
  DUMMY_CRYPTO_SECRET = 'dummysecretdummysecretdummysecretdummysecretdummysecretdummysecretdummysecre'

  class Error < StandardError; end
  class MustBeDefined < Error
    def initialize; super('must be defined'); end
  end
  class UnknownType < Error
    def initialize(type); super("unknown type #{type}"); end
  end
  class MissingDefault < Error
    def initialize; super("missing default value"); end
  end


  class << self
    # Parse a multi-key hash into globals and raise an informative error message on failure.
    def setup_config!(current_env, *args)
      declarations = args.extract_options!
      values = values_hash(args[0])

      setup_constants(current_env, declarations, values)
    end

    # Like setup_config! but uses ENV['RACK_ENV'] || 'development' as the
    # environment.  Also sets constant RACK_ENV.
    def setup_rack_environment!(*args)
      ENV['RACK_ENV'] ||= 'development'

      declarations = args.extract_options!
      values = values_hash(args[0])

      setup_constants(ENV['RACK_ENV'],
                    declarations.merge(:RACK_ENV => required_in_production(:development => 'development', :test => 'test')),
                     values)
    end

    # Declare an environment variable that is required to be defined in the<commit_msg>Prevent confusion with RACK_ENV in config files...<commit_after>require 'active_support/core_ext/array/extract_options'
require 'active_support/core_ext/hash/indifferent_access'
require 'active_support/core_ext/hash/keys'
require 'active_support/core_ext/hash/reverse_merge'
require 'addressable/uri'

# Example that uses the process's environment:
#     module Conker
#       setup_config!(Rails.env, :A_SECRET => api_credential)
#     end
#
# Example that uses a supplied hash of values (e.g. read from some file or
# database):
#     config_values = {:A_SECRET => 'very_secret'}
#     module Conker
#       setup_config!(Rails.env, config_values, :A_SECRET => api_credential)
#     end
#
# For convenience, if your config file is YAML, you can supply the path
# directly and Conker will load and parse the file:
#     module Conker
#       setup_config!(Rails.env, 'config_values.yml', :A_SECRET => api_credential)
#     end
module Conker
  ENVIRONMENTS = %w(production development test)
  DUMMY_API_KEY = 'dummy_api_key'.freeze
  DUMMY_CRYPTO_SECRET = 'dummysecretdummysecretdummysecretdummysecretdummysecretdummysecretdummysecre'

  class Error < StandardError; end
  class MustBeDefined < Error
    def initialize; super('must be defined'); end
  end
  class UnknownType < Error
    def initialize(type); super("unknown type #{type}"); end
  end
  class MissingDefault < Error
    def initialize; super("missing default value"); end
  end


  class << self
    # Parse a multi-key hash into globals and raise an informative error message on failure.
    def setup_config!(current_env, *args)
      declarations = args.extract_options!
      values = values_hash(args[0])

      setup_constants(current_env, declarations, values)
    end

    # Like setup_config! but uses ENV['RACK_ENV'] || 'development' as the
    # environment.  Also sets constant RACK_ENV.
    #
    # N.B. if using this method, you don't need to specify :RACK_ENV in your
    # variable declarations, and it will complain if you do.  This is partly to
    # make clear that this method *won't* read RACK_ENV from your config file,
    # only from the environment variable, for compatibility with other code
    # (e.g. Sinatra) that depends directly on the environment variable.
    def setup_rack_environment!(*args)
      ENV['RACK_ENV'] ||= 'development'
      set_constant(:RACK_ENV, ENV['RACK_ENV'])

      declarations = args.extract_options!
      values = values_hash(args[0])

      if declarations.key?('RACK_ENV') || declarations.key?(:RACK_ENV)
        raise Error, "No need to declare RACK_ENV; please remove it to avoid confusion!"
      end
      if ENV.key?('RACK_ENV') && values.key?('RACK_ENV') && (env = ENV['RACK_ENV']) != (conf = values['RACK_ENV'])
        raise "RACK_ENV differs between environment (#{env}) and config (#{conf})!  Please remove it from your config."
      end

      setup_constants(ENV['RACK_ENV'], declarations, values)
    end

    # Declare an environment variable that is required to be defined in the
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