Class: GetProcessStartTime::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/get_process_start_time/cli.rb

Instance Method Summary collapse

Instance Method Details

#parse_options(argv = ARGV) ⇒ Object 



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# File 'lib/get_process_start_time/cli.rb', line 6

def parse_options(argv = ARGV)
  op = OptionParser.new

  self.class.module_eval do
    define_method(:usage) do |msg = nil|
      puts op.to_s
      puts "error: #{msg}" if msg
      exit 1
    end
  end

  opts = {}
  op.banner += ' PID'
  begin
    args = op.parse(argv)
  rescue OptionParser::InvalidOption => e
    usage e.message
  end

  if args.size < 1
    usage 'PID argument is required'
  end

  [opts, args]
end

#run ⇒ Object 



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# File 'lib/get_process_start_time/cli.rb', line 32

def run
  opts, args = parse_options
  pid = args.first.to_i
  puts GetProcessStartTime.start_time(pid).to_f
end