Class: Cabin::NiceOutput

Inherits:
Object
  • Object
show all
Defined in:
lib/cabin/nice_output.rb

Constant Summary collapse

CODEMAP = 
{
  :normal => "\e[0m",
  :red => "\e[1;31m",
  :green => "\e[1;32m",
  :yellow => "\e[0;33m",
  :white => "\e[0;37m",
  :blue => "\e[1;34m"
}
DIM_CODEMAP = 
{
  red:   "\e[0;31m",
  green: "\e[0;32m",
  white: "\e[1;30m",
  yellow: "\e[33m",
  blue: "\e[0;34m"
}
LEVELMAP = 
{
  :fatal => :red,
  :error => :red,
  :warn => :yellow,
  :info => :green,
  :hint => :blue,
  :debug => :white,
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(io) ⇒ NiceOutput

Returns a new instance of NiceOutput.



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# File 'lib/cabin/nice_output.rb', line 32

def initialize(io)
  @io = io
end

Instance Attribute Details

#io ⇒ Object (readonly)

Returns the value of attribute io.



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# File 'lib/cabin/nice_output.rb', line 30

def io
  @io
end

Instance Method Details

#<<(event) ⇒ Object 



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# File 'lib/cabin/nice_output.rb', line 36

def <<(event)
  data = event.clone
  if data[:exception].respond_to? :data
    ed = data[:exception].data
    if ed.kind_of? Hash
      data = ed.merge( data )
    else
      data[:exception_data] = ed.inspect
    end
  end
  data.delete(:line)
  data.delete(:file)
  level = data.delete(:level) || :normal
  data.delete(:message)
  ts = data.delete(:timestamp)

  color = data.delete(:color)
  # :bold is expected to be truthy
  bold = data.delete(:bold) ? :bold : nil

  backtrace = data.delete(:backtrace)
  if !backtrace && data[:exception].respond_to?(:backtrace)
    backtrace = data[:exception].backtrace
  end

  # Make 'error' and other log levels have color
  if color.nil?
    color = LEVELMAP[level]
  end

  message = [event[:level] ? '====> ' : '      ',event[:message]]
  message.unshift(CODEMAP[color.to_sym]) if !color.nil?
  message << DIM_CODEMAP[color] if !color.nil?
  if documentation = data.delete(:documentation)
    message << "\n\tRead more on this topic here: #{documentation}"
  end
  if data.any?
    message << "\n" <<  pp(data)
  end
  if backtrace
    message << "\n\t--backtrace---------------\n\t" << backtrace.join("\n\t")
  end
  message << CODEMAP[:normal]  if !color.nil?
  @io.puts(message.join(""))
  @io.flush
end