Module: Capy

Defined in:
lib/capy.rb,
lib/capy/version.rb,
lib/capy/evaluator.rb

Defined Under Namespace

Classes: Evaluator

Constant Summary collapse

EXIT_COMMANDS = 
%w(exit quit)
VERSION = 
"1.6.0"

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.mode ⇒ Object (readonly)

Returns the value of attribute mode.



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# File 'lib/capy.rb', line 10

def mode
  @mode
end

.opts ⇒ Object (readonly)

Returns the value of attribute opts.



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# File 'lib/capy.rb', line 10

def opts
  @opts
end

Class Method Details

.run(args) ⇒ Object 



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# File 'lib/capy.rb', line 12

def run(args)
  @opts = Slop.parse!(args, :help => true, :strict => true) do
    banner "capy [script.capy]\n"
    on :b, :browser=, 'chrome, firefox', :default => 'chrome'
    on :j, :js, 'eval script as javascript with -a option'
    on :a, :'app-host=', 'app host'
    on :s, :'stop', 'stop after eval script'
    on :w, :webkit, 'use capybara webkit'
  end
  return 1 if opts.help?

  trap('INT') { exit }

  setup_capybara

  @mode = opts.js? ? :javascript : :capybara

  evaluator = Evaluator.new

  evaluator.visit Capybara.app_host if Capybara.app_host

  if args.empty?
    start_shell evaluator
  else
    script_file = args.shift
    unless File.exists?(script_file)
      puts "No such file: #{script_file}".red
      return 1
    end
    result = evaluator.eval_script File.read(script_file), mode, script_file
    puts "=> #{result.inspect}".cyan
    start_shell evaluator if opts.stop?
  end

  0
rescue Slop::InvalidOptionError => e
  puts e.message.red
  1
rescue => e
  error e
  1
end

.setup_capybara ⇒ Object 



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# File 'lib/capy.rb', line 55

def setup_capybara
  if opts.webkit?
    require 'capybara-webkit'
    Capybara.register_driver :webkit do |app|
      Capybara::Driver::Webkit.new(app, :browser => Capybara::Driver::Webkit::Browser.new)
    end
    Capybara.current_driver = :webkit
  else
    Capybara.register_driver :selenium do |app|
      Capybara::Selenium::Driver.new(app, :browser => opts[:browser].to_sym)
    end
    Capybara.current_driver = :selenium
  end
  Capybara.app_host = opts[:'app-host']
end

.start_shell(evaluator) ⇒ Object 



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# File 'lib/capy.rb', line 73

def start_shell(evaluator)
  return if @_start_shell
  @_start_shell = true

  Readline.completion_proc = lambda do |text|
    (Evaluator.instance_methods - Object.methods + EXIT_COMMANDS).grep(/^#{Regexp.quote(text.strip)}/)
  end

  history_file = File.expand_path('~/.capy_history')
  if File.exists?(history_file)
    File.read(history_file, :encoding => "BINARY").
      encode!(:invalid => :replace, :undef => :replace).
      split(/\n/).
      each { |line| Readline::HISTORY << line }
  end

  while buf = Readline.readline('> ', true)
    unless Readline::HISTORY.count == 1
      Readline::HISTORY.pop if buf.empty? || Readline::HISTORY[-1] == Readline::HISTORY[-2]
    end

    case buf.strip
    when *EXIT_COMMANDS
      File.open(history_file, 'w') do |file|
        lines = Readline::HISTORY.to_a[([Readline::HISTORY.size - 1000, 0].max)..-1]
        file.print(lines.join("\n"))
      end
      return
    else
      begin
        result = evaluator.eval_script(buf, mode)
        puts "=> #{result.inspect}".cyan
      rescue Exception => e
        error e
      end
    end
  end

  @_start_shell = false
end