aboutsummaryrefslogtreecommitdiffstats
path: root/activesupport/lib/active_support/deprecation/behaviors.rb
blob: 578c025fcf6c6cea3606aaafc1cc7e353a832371 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
module ActiveSupport
  module Deprecation
    class << self
      # Behavior is a block that takes a message argument.
      attr_writer :behavior

      # Whether to print a backtrace along with the warning.
      attr_accessor :debug

      def behavior
        @behavior ||= default_behavior
      end

      def default_behavior
        Deprecation::DEFAULT_BEHAVIORS[defined?(Rails.env) ? Rails.env.to_s : 'test']
      end
    end

    # Default warning behaviors per Rails.env. Ignored in production.
    DEFAULT_BEHAVIORS = {
      'test' => Proc.new { |message, callstack|
         $stderr.puts(message)
         $stderr.puts callstack.join("\n  ") if debug
       },
      'development' => Proc.new { |message, callstack|
         logger =
           if defined?(Rails) && Rails.logger
             Rails.logger
           else
             require 'logger'
             Logger.new($stderr)
           end
         logger.warn message
         logger.debug callstack.join("\n  ") if debug
       }
    }
  end
end