Nicely formatted logger

as_logger.rb

logger = ActiveSupport::Logger.new(STDOUT)
logger.formatter = -> (severity, datetime, progname, msg) { format('[%-5.5{severity} %{timestamp}] %{msg}', severity: severity, timestamp: datetime.to_s(:db), msg: msg) + "\n" }

logger.unknown 'foo'
logger.fatal 'bar'
logger.error 'fizz'
logger.warn 'buzz'
logger.info 'alice'
logger.debug 'bob'