Module: VMCExtensions

Included in:
Object
Defined in:
lib/cli/core_ext.rb

Instance Method Summary collapse

Instance Method Details



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# File 'lib/cli/core_ext.rb', line 13

def banner(message)
  say "\n"
  say message
end

#blank? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cli/core_ext.rb', line 45

def blank?
  self.to_s.blank?
end

#clear(size = 80) ⇒ Object 



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# File 'lib/cli/core_ext.rb', line 29

def clear(size=80)
  return unless VMC::Cli::Config.output
  VMC::Cli::Config.output.print("\r")
  VMC::Cli::Config.output.print(" " * size)
  VMC::Cli::Config.output.print("\r")
  #VMC::Cli::Config.output.flush
end

#display(message, nl = true) ⇒ Object 



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# File 'lib/cli/core_ext.rb', line 18

def display(message, nl=true)
  if nl
    say message
  else
    if VMC::Cli::Config.output
      VMC::Cli::Config.output.print(message)
      VMC::Cli::Config.output.flush
    end
  end
end

#err(message, prefix = 'Error: ') ⇒ Object

Raises:



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# File 'lib/cli/core_ext.rb', line 37

def err(message, prefix='Error: ')
  raise VMC::Cli::CliExit, "#{prefix}#{message}"
end

#header(message, filler = '-') ⇒ Object 



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# File 'lib/cli/core_ext.rb', line 7

def header(message, filler = '-')
  say "\n"
  say message
  say filler.to_s * message.size
end

#pretty_size(size, prec = 1) ⇒ Object 



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# File 'lib/cli/core_ext.rb', line 60

def pretty_size(size, prec=1)
  return 'NA' unless size
  return "#{size}B" if size < 1024
  return sprintf("%.#{prec}fK", size/1024.0) if size < (1024*1024)
  return sprintf("%.#{prec}fM", size/(1024.0*1024.0)) if size < (1024*1024*1024)
  return sprintf("%.#{prec}fG", size/(1024.0*1024.0*1024.0))
end

#quit(message = nil) ⇒ Object

Raises:



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# File 'lib/cli/core_ext.rb', line 41

def quit(message = nil)
  raise VMC::Cli::GracefulExit, message
end

#say(message) ⇒ Object 



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# File 'lib/cli/core_ext.rb', line 3

def say(message)
  VMC::Cli::Config.output.puts(message) if VMC::Cli::Config.output
end

#uptime_string(delta) ⇒ Object 



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# File 'lib/cli/core_ext.rb', line 49

def uptime_string(delta)
  num_seconds = delta.to_i
  days = num_seconds / (60 * 60 * 24);
  num_seconds -= days * (60 * 60 * 24);
  hours = num_seconds / (60 * 60);
  num_seconds -= hours * (60 * 60);
  minutes = num_seconds / 60;
  num_seconds -= minutes * 60;
  "#{days}d:#{hours}h:#{minutes}m:#{num_seconds}s"
end