Module: Proselytism

Defined in:
lib/proselytism/engine.rb,
lib/proselytism/logger.rb,
lib/proselytism/version.rb,
lib/proselytism/converter.rb,
lib/proselytism/proselytism.rb,
lib/generators/proselytism/config_generator.rb,
lib/generators/proselytism/initializer_generator.rb

Defined Under Namespace

Modules: Converters Classes: Config, ConfigGenerator, Engine, InitializerGenerator, Logger

Constant Summary collapse

VERSION = 
"0.0.3"

Class Method Summary collapse

Class Method Details

.config {|@@config| ... } ⇒ Object

Yields:



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# File 'lib/proselytism/proselytism.rb', line 6

def self.config(&block)
  @@config ||= Config.new
  yield @@config if block
  @@config
end

.convert(file_path, options = {}, &block) ⇒ Object

Converts a document from one format to another



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# File 'lib/proselytism/proselytism.rb', line 40

def self.convert(file_path, options={}, &block)
  options.symbolize_keys!
  options[:to]    ||= :txt

  # Tempfile don't have extension => let's make with the from option
  if options[:from] and file_path.match(/[^\.]*$/)[0] != options[:from].to_s
    file = Tempfile.new [File.basename(file_path), ".#{options[:from]}"]
    file.write File.read(file_path)
    file.close
    file_path = file.path
  else
    # if file_path has extension and no from option => set the option
    options[:from] ||= file_path.match(/[^\.]*$/)[0].downcase.to_sym
  end

  dir = Dir.mktmpdir(nil, options[:dir] || config.tmp_path)
  result = get_converter(options[:from], options[:to]).convert file_path, options.update(:dir => dir)

  if block_given?
    output = yield result
    FileUtils.remove_entry_secure dir
    output
  else
    result
  end
end

.extract_images(file_path, options = {}, &block) ⇒ Object 



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# File 'lib/proselytism/proselytism.rb', line 67

def self.extract_images(file_path, options={}, &block)
  if File.extname(file_path).match(/pdf/)
    convert file_path, :to => :ppm do |files|
      output = files.map do |file|
        convert file, :to => :jpg, :dir => File.dirname(file)
      end
      #block.call(output)
      block_given? ? yield(output) : output
    end
  else
    convert file_path, :to => :html do |file|
      output = Dir.glob(File.join(File.dirname(file), "*.{jpg,jpeg,bmp,tif,tiff,gif,png}"))
      #block.call(output)
      block_given? ? yield(output) : output
    end
  end
end

.extract_text(file_path, options = {}, &block) ⇒ Object 



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# File 'lib/proselytism/proselytism.rb', line 85

def self.extract_text(file_path, options={}, &block)
  convert(file_path, options.update(:to => :txt)) do |file|
    text = File.read(file).toutf8
    block_given? ? yield(text) : text
  end
end

.get_converter(origin, destination) ⇒ Object

Finds the relevant converter



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# File 'lib/proselytism/proselytism.rb', line 31

def self.get_converter(origin, destination)
  Converters::Base.subclasses.detect do |converter|
    converter.from.include?(origin) and converter.to.include?(destination)
  end.instance
end

.log(severity, message = nil, &block) ⇒ Object 



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# File 'lib/proselytism/logger.rb', line 18

def self.log(severity, message = nil, &block)
  if config.logger
    start_time = Time.now
    if block_given?
      result = yield
      config.logger.send(severity, "#{message} in #{((Time.now - start_time)*1000).to_i} ms")
    else
      config.logger.send(severity, message.strip)
    end
    block_given? ? result : true
  end
end