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|
module VagrantCloud
module Logger
@@lock = Mutex.new
# @return [Log4r::Logger] default logger
def self.default
@@lock.synchronize do
if !@logger
# Require Log4r and define the levels we'll be using
require 'log4r/config'
Log4r.define_levels(*Log4r::Log4rConfig::LogLevels)
level = nil
begin
level = Log4r.const_get(ENV.fetch("VAGRANT_CLOUD_LOG", "FATAL").upcase)
rescue NameError
# This means that the logging constant wasn't found,
# which is fine. We just keep `level` as `nil`. But
# we tell the user.
level = nil
end
# Some constants, such as "true" resolve to booleans, so the
# above error checking doesn't catch it. This will check to make
# sure that the log level is an integer, as Log4r requires.
level = nil if !level.is_a?(Integer)
# Only override the log output format if the default is set
if Log4r::Outputter.stderr.formatter.is_a?(Log4r::DefaultFormatter)
base_formatter = Log4r::PatternFormatter.new(
pattern: "%d [%5l] %m",
date_pattern: "%F %T"
)
Log4r::Outputter.stderr.formatter = base_formatter
end
logger = Log4r::Logger.new("vagrantcloud")
logger.outputters = Log4r::Outputter.stderr
logger.level = level
@logger = logger
end
end
@logger
end
def self.included(klass)
klass.class_variable_set(:@@logger, Log4r::Logger.new(klass.name.downcase))
klass.class_eval { define_method(:logger) { self.class.class_variable_get(:@@logger) } }
end
# @return [Log4r::Logger] logger instance for current context
def logger
@@lock.synchronize do
if !@logger
@logger = Log4r::Logger.new(self.class.name.downcase)
end
@logger
end
end
end
Logger.default
end
|
