Class: SemanticLogger::Formatters::Color

Inherits:
Object
  • Object
show all
Defined in:
lib/semantic_logger/formatters/color.rb

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Color

Parameters:

Any valid AwesomePrint option for rendering data.
These options can also be changed be creating a `~/.aprc` file.
See: https://github.com/michaeldv/awesome_print

Note: The option :multiline is set to false if not supplied.
Note: Has no effect if Awesome Print is not installed.



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# File 'lib/semantic_logger/formatters/color.rb', line 17

def initialize(options={})
  @ai_options             = options.dup
  @ai_options[:multiline] = false unless @ai_options.has_key?(:multiline)
end

Instance Method Details

#call(log, logger) ⇒ Object

Adds color to the default log formatter Example:

SemanticLogger.add_appender(io: $stdout, formatter: :color)



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# File 'lib/semantic_logger/formatters/color.rb', line 25

def call(log, logger)
  colors      = SemanticLogger::AnsiColors
  level_color = colors::LEVEL_MAP[log.level]

  # Header with date, time, log level and process info
  message     = "#{log.formatted_time} #{level_color}#{log.level_to_s}#{colors::CLEAR} [#{log.process_info}]"

  # Tags
  message << ' ' << log.tags.collect { |tag| "[#{level_color}#{tag}#{colors::CLEAR}]" }.join(' ') if log.tags && (log.tags.size > 0)

  # Duration
  message << " (#{colors::BOLD}#{log.duration_human}#{colors::CLEAR})" if log.duration

  # Class / app name
  message << " #{level_color}#{log.name}#{colors::CLEAR}"

  # Log message
  message << " -- #{log.message}" if log.message

  # Payload: Colorize the payload if the AwesomePrint gem is loaded
  if log.has_payload?
    payload = log.payload
    message << ' -- ' <<
      if !defined?(AwesomePrint) || !payload.respond_to?(:ai)
        payload.inspect
      else
        payload.ai(@ai_options) rescue payload.inspect
      end
  end

  # Exceptions
  if log.exception
    message << " -- Exception: #{colors::BOLD}#{log.exception.class}: #{log.exception.message}#{colors::CLEAR}\n"
    message << log.backtrace_to_s
  end
  message
end