Class: Win32::CaptureIE::CLI::PrtIE

Inherits:
Object
  • Object
show all
Defined in:
lib/win32/capture_ie/cli/prt_ie.rb

Overview

:nodoc:

Constant Summary collapse

DEFAULT_ARGUMENTS = 
%W(--output-digest=MD5)

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.start(args) ⇒ Object 



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# File 'lib/win32/capture_ie/cli/prt_ie.rb', line 12

def self.start(args)
  self.new.perform(args)
end

Instance Method Details

#arguable(arr_or_arguable) ⇒ Object 



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# File 'lib/win32/capture_ie/cli/prt_ie.rb', line 17

def arguable(arr_or_arguable)
  case arr_or_arguable
  when OptionParser::Arguable
    arr_or_arguable
  when Array
    arr_or_arguable.dup.extend(OptionParser::Arguable)
  else
    raise ArgumentError, "Invalid option `#{arr_or_arguable.inspect}:#{arr_or_arguable.class}'" +
                         " (expected Array or OptionParser::Arguable)"
  end
end

#option_parser(opt) ⇒ Object 



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# File 'lib/win32/capture_ie/cli/prt_ie.rb', line 46

def option_parser(opt)
  Proc.new do |parser|
    parser.program_name = "prtie"
    parser.version = Win32::CaptureIE::VERSION::STRING
    parser.banner = "Usage: #{parser.program_name} [options] URL"
    parser.separator ""
    parser.on("-w", "--wait=SECONDS", Float, "wait SECONDS between retrievals") {|v|
      opt.wait = v
    }
    parser.on("-d", "--output-directory=DIRECTORY", "save capture to DIRECTORY/...") {|v|
      opt.outdir = v
    }
    parser.on("-o", "--output=FILE", "save capture to FILE") {|v|
      opt.output = v
    }
    parser.on("-T", "--output-type=TYPE",
              "save capture as image TYPE",
              "Default: PNG (RMagick available)",
              "      or BMP (not available)") {|v|
      opt.output_type = v
    }
    parser.on("-D", "--output-digest=ALGORITHM",
              "use output filename as hex-encoded version",
              "of a given URL",
              "ALGORITHM: MD5, SHA1, SHA512 ...") {|v|
      opt.output_digest = v
    }

    parser.separator ""
    parser.on("-v", "--version", "print the version"){
      puts parser.ver
      exit 0
    }
    parser.on("-h", "--help", "print this message"){
      puts parser
      exit 0
    }

    parser.separator ""
    parser.separator "  Default options:"
    parser.separator "    #{DEFAULT_ARGUMENTS * ' '}"
    parser
  end
end

#parse_options(args) ⇒ Object 



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# File 'lib/win32/capture_ie/cli/prt_ie.rb', line 91

def parse_options(args)
  opt = Win32::CaptureIE::Commands::PrtIE::Option.new
  proc = option_parser(opt)
  arguable(DEFAULT_ARGUMENTS).options(&proc).parse!
  parser = args.options(&proc)
  begin
    parser.parse!
  rescue OptionParser::ParseError => e
    usage_and_exit(2, e.message, parser)
  end
  opt.url = ARGV.shift
  [opt, parser]
end

#perform(args) ⇒ Object 



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# File 'lib/win32/capture_ie/cli/prt_ie.rb', line 36

def perform(args)
  opt, parser = parse_options(arguable(args))
  act = Win32::CaptureIE::Commands::PrtIE::Action.new
  begin
    act.perform(opt)
  rescue ArgumentError => e
    usage_and_exit(2, e.message, parser)
  end
end

#usage_and_exit(exit_code, message, parser, out = $stdout) ⇒ Object 



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# File 'lib/win32/capture_ie/cli/prt_ie.rb', line 29

def usage_and_exit(exit_code, message, parser, out=$stdout)
  m = message.sub(/\.?\z/, ".")
  out.puts "Error: #{m}"
  out.puts parser
  exit(2)
end