Module: Loog

Defined in:

lib/loog.rb

Overview

Loog is an object-oriented wrapper around Ruby Logger:

require 'loog' log = Loog::VERBOSE log.info('Hello, world!')

For more information read README file.

Author

Yegor Bugayenko (yegor256@gmail.com)

Copyright

Copyright (c) 2018-2026 Yegor Bugayenko

License

MIT

Defined Under Namespace

Classes: Buffer, Colorful, Ellipsized, Tee

Constant Summary

COMPACT =

Compact formatter

proc do |severity, _time, _target, msg|
  prefix = ''
  case severity
  when 'ERROR', 'FATAL'
    prefix = 'E: '
  when 'DEBUG'
    prefix = 'D: '
  end
  message = msg.to_s.encode('UTF-8', invalid: :replace, undef: :replace, replace: '?')
  "#{prefix}#{message.rstrip.gsub("\n", "\n#{' ' * prefix.length}")}\n"
end

SHORT =

Short formatter

proc do |_severity, _time, _target, msg|
  message = msg.to_s.encode('UTF-8', invalid: :replace, undef: :replace, replace: '?')
  "#{message.rstrip}\n"
end

FULL =

Full formatter

proc do |severity, time, _target, msg|
  message = msg.to_s.encode('UTF-8', invalid: :replace, undef: :replace, replace: '?')
  format(
    "%<time>s %<severity>5s %<msg>s\n",
    time: time.utc.iso8601,
    severity: severity,
    msg: message.rstrip
  )
end

NULL =

No logging at all

Logger.new($stdout)

VERBOSE =

Everything, including debug

Logger.new($stdout)

REGULAR =

Info and errors, no debug info

Logger.new($stdout)

ERRORS =

Errors only

Logger.new($stdout)