osd check

gistfile1.txt

 osd = false

  # Check for all dependencies, and note their absence.
  dirs = ENV['PATH'].split(File::PATH_SEPARATOR)
  DEPENDENCIES.each_key do |dep|
    dirs.each do |dir|
      if File.executable?(File.join(dir, dep.to_s))
        DEPENDENCIES[dep] = true
        if dep.to_s == 'tesseract'  #if the tesseract dependency is found
          val = %x[ #{'tesseract --list-langs'} 2>&1 >/dev/null ]  #check for the osd plugin.
          if val =~ /\bosd\b/     #osd will be listed in tesseract --listlangs
            osd = true
          end
        end
        break
      end
    end
  end

  DEPENDENCIES[:osd] = osd