ManageIQ/httpd_configmap_generator

require "pathname"

module HttpdConfigmapGenerator
  class Base
    module FileHelper
      def template_directory
        @template_directory ||=
          Pathname.new(Gem::Specification.find_by_name("httpd_configmap_generator").full_gem_path).join("templates")
      end

      def cp_template(file, src_dir, dest_dir = "/")
        src_path  = path_join(src_dir, file)
        dest_path = path_join(dest_dir, file.gsub(".erb", ""))
        if src_path.to_s.include?(".erb")
          File.write(dest_path, ERB.new(File.read(src_path), nil, '-').result(binding))
        else
          FileUtils.cp(src_path, dest_path)
        end
      end

      def delete_target_file(file_path)
        if File.exist?(file_path)
          if opts[:force]
            info_msg("File #{file_path} exists, forcing a delete")
            File.delete(file_path)
          else
            raise "File #{file_path} already exist"
          end
        end
      end

      def create_target_directory(file_path)
        dirname = File.dirname(file_path)
        return if File.exist?(dirname)
        debug_msg("Creating directory #{dirname} ...")
        FileUtils.mkdir_p(dirname)
      end

      def rm_file(file, dir = "/")
        path = path_join(dir, file)
        File.delete(path) if File.exist?(path)
      end

      def path_join(*args)
        path = Pathname.new(args.shift)
        args.each { |path_seg| path = path.join("./#{path_seg}") }
        path
      end

      def file_binary?(file)
        data = File.read(file)
        ascii = control = binary = total = 0
        data[0..512].each_byte do |c|
          total += 1
          if c < 32
            control += 1
          elsif c >= 32 && c <= 128
            ascii += 1
          else
            binary += 1
          end
        end
        control.to_f / ascii > 0.1 || binary.to_f / ascii > 0.05
      end
    end
  end
end