Class: Cloudreach::Logger

Inherits:
Object
  • Object
show all
Defined in:
lib/cloudreach-logger.rb

Overview

this class is just a factory that produces instances of Ruby’s own Logger class

Constant Summary collapse

@@log_levels = 
{
  :debug => ::Logger::DEBUG,
  :info  => ::Logger::INFO,
  :warn  => ::Logger::WARN,
  :error => ::Logger::ERROR,
  :fatal => ::Logger::FATAL
}

Class Method Summary collapse

Class Method Details

.create(logfile: nil, level: :debug, stdout: false, name: nil) ⇒ Object 



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# File 'lib/cloudreach-logger.rb', line 49

def self.create(logfile: nil, level: :debug, stdout: false, name: nil)
  if name == nil
    # default to using folder name as name
    name = ENV['PWD']
    name = name.slice(name.rindex('/')+1, name.length)
  end

  if logfile == nil
    env = ENV['RUBY_ENV'] || ENV['RACK_ENV'] || 'development'
    logfile = "log/#{env}.log"
  end

  if !logfile && !stdout
    raise ArgumentError, "You aren't going to log anything. What?"
  end

  if logfile
    file = File.open(logfile, 'a')
    file.sync = true
  end

  if logfile && stdout
    file = MultiIO.new(file, STDOUT)
  elsif !logfile && stdout
    file = STDOUT
  end

  logger = ::Logger.new(file)
  logger.level = @@log_levels[level]
  logger.formatter = lambda { |severity, timestamp, progname, msg|
    if msg.is_a? Hash
      pairs = splunkify(msg)
    else
      pairs = "line=#{sanitize(msg)}"
    end

    if logger._pairs
      pairs = "#{splunkify(logger._pairs)}, #{pairs}"
    end

    "[#{timestamp.strftime("%Y-%m-%d %H:%M:%S")}] service_name=#{sanitize(name)}, severity=#{severity}, #{pairs}\n"
  }

  logger.set(instance_id: ENV['CLOUDREACH_INSTANCE_ID']) if ENV['CLOUDREACH_INSTANCE_ID']
  logger.set(container_id: ENV['CLOUDREACH_CONTAINER_ID']) if ENV['CLOUDREACH_CONTAINER_ID']

  logger
end