Class: Larrow::Runner::Logger

Inherits:
Object
  • Object
show all
Defined in:
lib/larrow/runner/logger.rb

Overview

usage: logger = Larrow::Runner::Logger filename logger.level(3).color(‘red’).info ‘hello’ logger.level(3).title ‘hello’ logger.level(3).detail ‘hello’

Instance Method Summary collapse

Constructor Details

#initialize(logger, level: nil, color: 'green') ⇒ Logger

Returns a new instance of Logger.



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# File 'lib/larrow/runner/logger.rb', line 10

def initialize logger, level:nil, color:'green'
  @inner_logger = if logger.is_a? ::Logger
                    logger
                  else
                    ::Logger.new logger
                  end
  @inner_logger.formatter = proc do |_severity, datetime, _progname, msg|
       "[#{datetime.strftime('%H:%M:%S')}] #{msg}\n"
  end
  @level = level
  @color = color
end

Instance Method Details

#color(color) ⇒ Object 



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# File 'lib/larrow/runner/logger.rb', line 31

def color color
  return self if RunOption.key? :nocolor # skip color when no color
  Logger.new @inner_logger, level: @level, color: color
end

#detail(msg) ⇒ Object 



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# File 'lib/larrow/runner/logger.rb', line 46

def detail msg
  color('magenta').info msg
end

#err(msg) ⇒ Object 



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# File 'lib/larrow/runner/logger.rb', line 50

def err msg
  color('red').info msg
end

#info(msg) ⇒ Object 



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# File 'lib/larrow/runner/logger.rb', line 36

def info msg
  indent = "  " * (@level || 0)
  wrapped = wrap_color msg
  @inner_logger.info "#{indent}#{wrapped}"
end

#level(level) ⇒ Object 



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# File 'lib/larrow/runner/logger.rb', line 27

def level level
  Logger.new @inner_logger, level: level, color: @color
end

#nocolor ⇒ Object 



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# File 'lib/larrow/runner/logger.rb', line 23

def nocolor
  @color = nil
end

#title(msg) ⇒ Object 



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# File 'lib/larrow/runner/logger.rb', line 42

def title msg
  color('yellow').info msg
end

#wrap_color(msg) ⇒ Object 



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# File 'lib/larrow/runner/logger.rb', line 54

def wrap_color msg
  return msg if @color.nil?
  code = case @color.downcase
           when 'black'   then  '30'
           when 'red'     then  '31'
           when 'green'   then  '32'
           when 'yellow'  then  '33'
           when 'blue'    then  '34'
           when 'magenta' then  '35'
           when 'cyan'    then  '36'
           when 'white'   then  '37'
         end
  "\033[#{code}m#{msg}\033[0m"
end