Class: Leveret::LogFormatter

Inherits:

Logger::Formatter

• Object
• Logger::Formatter
• Leveret::LogFormatter

Defined in:

lib/leveret/log_formatter.rb

Overview

Prettier logging than the default

Constant Summary

SEVERITY_TO_COLOR_MAP =

ANSI colour codes for different message types

{ 'DEBUG' => '0;37', 'INFO' => '32', 'WARN' => '33', 'ERROR' => '31', 'FATAL' => '31',
'UNKNOWN' => '37' }.freeze

Instance Method Summary

• #call(severity, datetime, _progname, msg) ⇒ String

  Build a pretty formatted log line.

Instance Method Details

#call(severity, datetime, _progname, msg) ⇒ String

Build a pretty formatted log line

Parameters:

• severity (String) —

  Log level, one of debug, info, warn, error, fatal or unknown

• datetime (Time) —

  Timestamp of log event

• _progname (String) —

  (Unused) the name of the progname set in the logger

• msg (String) —

  Body of the log message

Returns:

• (String) —

  Formatted and coloured log message in the format: “YYYY-MM-DD HH:MM:SS:USEC [SEVERITY] MESSAGE (pid:Process ID)”

# File 'lib/leveret/log_formatter.rb', line 17

def call(severity, datetime, _progname, msg)
  formatted_time = datetime.strftime("%Y-%m-%d %H:%M:%S") << datetime.usec.to_s[0..2].rjust(3)
  color = SEVERITY_TO_COLOR_MAP[severity]

  "\033[0;37m#{formatted_time}\033[0m [\033[#{color}m#{severity}\033[0m] #{msg2str(msg)} (pid:#{Process.pid})\n"
end