class ActiveSupport::Logger
Public Class Methods
# File activesupport/lib/active_support/logger.rb, line 20
def self.logger_outputs_to?(logger, *sources)
loggers = if logger.is_a?(BroadcastLogger)
logger.broadcasts
else
[logger]
end
logdevs = loggers.map { |logger| logger.instance_variable_get(:@logdev) }
logger_sources = logdevs.filter_map { |logdev| logdev.try(:filename) || logdev.try(:dev) }
normalize_sources(sources).intersect?(normalize_sources(logger_sources))
end Returns true if the logger destination matches one of the sources
logger = Logger.new(STDOUT)
ActiveSupport::Logger.logger_outputs_to?(logger, STDOUT)
# => true
logger = Logger.new('/var/log/rails.log')
ActiveSupport::Logger.logger_outputs_to?(logger, '/var/log/rails.log')
# => true
# File activesupport/lib/active_support/logger.rb, line 33 def initialize(*args, **kwargs) super @formatter ||= SimpleFormatter.new end
Calls superclass method
# File activesupport/lib/active_support/logger.rb, line 47
def self.normalize_sources(sources)
sources.map do |source|
source = source.path if source.respond_to?(:path)
source = File.realpath(source) if source.is_a?(String) && File.exist?(source)
source
end
end
© 2004–2021 David Heinemeier Hansson
Licensed under the MIT License.