1 # Adds the 'around_level' method to Logger.
4 def self.define_around_helper(level
)
5 module_eval
<<-end_eval
6 def around_#{level}(before_message, after_message, &block)
7 self.#{level}(before_message)
8 return_value = block.call(self)
9 self.#{level}(after_message)
14 [:debug, :info, :error, :fatal].each
{|level
| define_around_helper(level
) }
20 # Extensions to the built in Ruby logger.
22 # If you want to use the default log formatter as defined in the Ruby core, then you
23 # will need to set the formatter for the logger as in:
25 # logger.formatter = Formatter.new
27 # You can then specify the datetime format, for example:
29 # logger.datetime_format = "%Y-%m-%d"
31 # Note: This logger is deprecated in favor of ActiveSupport::BufferedLogger
33 # Set to false to disable the silencer
34 cattr_accessor
:silencer
37 # Silences the logger for the duration of the block.
38 def silence(temporary_level
= Logger
::ERROR)
41 old_logger_level
, self.level
= level
, temporary_level
44 self.level
= old_logger_level
51 alias :old_datetime_format= :datetime_format=
52 # Logging date-time format (string passed to +strftime+). Ignored if the formatter
53 # does not respond to datetime_format=.
54 def datetime_format
=(datetime_format
)
55 formatter
.datetime_format
= datetime_format
if formatter
.respond_to
?(:datetime_format=)
58 alias :old_datetime_format :datetime_format
59 # Get the logging datetime format. Returns nil if the formatter does not support
60 # datetime formatting.
62 formatter
.datetime_format
if formatter
.respond_to
?(:datetime_format)
65 alias :old_formatter :formatter if method_defined
?(:formatter)
66 # Get the current formatter. The default formatter is a SimpleFormatter which only
67 # displays the log message
69 @formatter ||= SimpleFormatter
.new
72 unless const_defined
? :Formatter
74 Format
= "%s, [%s#%d] %5s -- %s: %s\n"
76 attr_accessor
:datetime_format
79 @datetime_format = nil
82 def call(severity
, time
, progname
, msg
)
83 Format
% [severity
[0..0], format_datetime(time
), $$
, severity
, progname
,
88 def format_datetime(time
)
89 if @datetime_format.nil?
90 time
.strftime("%Y-%m-%dT%H:%M:%S.") << "%06d " % time
.usec
92 time
.strftime(@datetime_format)
101 "#{ msg.message } (#{ msg.class })\n" <<
102 (msg
.backtrace
|| []).join("\n")
110 # Simple formatter which only displays the message.
111 class SimpleFormatter
< Logger
::Formatter
112 # This method is invoked when a log event occurs
113 def call(severity
, timestamp
, progname
, msg
)
114 "#{String === msg ? msg : msg.inspect}\n"
119 alias old_format_message format_message
121 # Ruby 1.8.3 transposed the msg and progname arguments to format_message.
122 # We can't test RUBY_VERSION because some distributions don't keep Ruby
123 # and its standard library in sync, leading to installations of Ruby 1.8.2
124 # with Logger from 1.8.3 and vice versa.
125 if method_defined
?(:formatter=)
126 def format_message(severity
, timestamp
, progname
, msg
)
127 formatter
.call(severity
, timestamp
, progname
, msg
)
130 def format_message(severity
, timestamp
, msg
, progname
)
131 formatter
.call(severity
, timestamp
, progname
, msg
)
134 attr_writer
:formatter
137 alias old_format_datetime format_datetime
138 def format_datetime(datetime
) datetime
end
140 alias old_msg2str msg2str
141 def msg2str(msg
) msg
end