Class: EmailStylist::StyledErbTemplate

Inherits:
Object
  • Object
show all
Defined in:
lib/email_stylist/styled_erb_template.rb

Constant Summary collapse

MUTEX =

GVL может переключить поток между чтением и записью в любой момент — без мьютекса потоки гонятся компилировать одновременно

Mutex.new

Class Method Summary collapse

Class Method Details

.render(template_path:, layout_path: nil, compiled_path: nil, css_string: nil, disable_caching: false, view_context: nil) ⇒ Object

rubocop:disable Metrics/ParameterLists



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# File 'lib/email_stylist/styled_erb_template.rb', line 14

def self.render( # rubocop:disable Metrics/ParameterLists
  template_path:,
  layout_path: nil,
  compiled_path: nil,
  css_string: nil,
  disable_caching: false,
  view_context: nil
)
  template_id = "#{layout_path}#{template_path}"

  @cache ||= {}

  erb_template =
    MUTEX.synchronize do
      @cache[template_id] = nil if disable_caching

      @cache[template_id] ||=
        begin
          html = compile(template_path, layout_path).gsub(/<%.*?%>/m) { |s| "base64___#{Base64.strict_encode64(s)}___base64" }

          html = Inky::Core.new.release_the_kraken(html)

          pm = Premailer.new(
            html,
            css_string:         css_string,
            with_html_string:   true,
            include_link_tags:  true,
            adapter:            :nokogiri,
            generate_text_part: false,
            css_to_attributes:  false,
            remove_scripts:     false,
          )

          html = pm.to_inline_css.force_encoding('ASCII-8BIT').gsub(/base64___(.+?)___base64/) { Base64.strict_decode64(Regexp.last_match(1)) }

          if compiled_path
            write_compiled_erb(html, compiled_path)
            Tilt::ERBTemplate.new(compiled_path)
          else
            Tilt::ERBTemplate.new { html }
          end
        end
    end

  erb_template.render(view_context)
end