Class: Epic::Validator::JavaScript

Inherits:
Base
  • Object
show all
Defined in:
lib/epic.rb

Direct Known Subclasses

JSON

Instance Method Summary collapse

Methods inherited from Base

#base_path, #configuration, configuration, configure, #display_path, #tmp_path

Instance Method Details

#jslint_settings ⇒ Object 



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# File 'lib/epic.rb', line 79

def jslint_settings
  configuration.jslint_settings
end

#jslint_settings_count ⇒ Object 



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# File 'lib/epic.rb', line 83

def jslint_settings_count
  jslint_settings.to_s.split("\n").size
end

#pre_process(content) ⇒ Object 



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# File 'lib/epic.rb', line 87

def pre_process(content)
  content
end

#use_jslint_settings? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/epic.rb', line 75

def use_jslint_settings?
  !jslint_settings.blank?
end

#validate(path) ⇒ Object 



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# File 'lib/epic.rb', line 91

def validate(path)
  display = display_path(path)
  $stdout.print "   #{display}  validating . . . "
  output = ""

  File.open(path) do |f|
    output = f.read
  end
  
  output = pre_process(output)
  
  FileUtils.mkdir_p(tmp_path)
  
  js_fragment_path = File.expand_path("#{tmp_path}/#{File.basename(path)}_fragment")
  fragment_display_path = display_path(js_fragment_path)
    
  if File.exists?(js_fragment_path)
    puts "That already exists?"
  else
    File.open(js_fragment_path,'w') do |f|
      f.puts jslint_settings if use_jslint_settings?
      f.puts output
    end

    jslint_path = File.expand_path("#{File.dirname(__FILE__)}/../vendor/ext/jslint.js")
    raise "#{jslint_path} does not exist" unless File.exists?(jslint_path)
    rhino_path = File.expand_path("#{File.dirname(__FILE__)}/../vendor/ext/js.jar")
    raise "#{rhino_path} does not exist" unless File.exists?(rhino_path)
    
    results = F.execute("java -jar #{rhino_path} #{jslint_path} #{js_fragment_path}", :return => true)

    if results =~ /jslint: No problems found/
      $stdout.puts "OK"
    else
      $stdout.puts "errors found!"
      results.split("\n").each do |result|
        if result =~ /line (\d+) character (\d+): (.*)/
          line_number = $1.to_i
          error = "Error at #{fragment_display_path} line #{line_number-jslint_settings_count} character #{$2}: #{$3}"
          error += F.get_line_from_file(js_fragment_path, line_number)
    
          $stdout.puts error
        end
      end
      message = "JavaScript Errors embedded in #{display}"
      g(message)
      raise message
    end
  end
end