Class: SassC::Engine

Inherits:
Object
  • Object
show all
Defined in:
lib/sassc/embedded.rb

Instance Method Summary collapse

Instance Method Details

#dependencies ⇒ Object

Raises:

  • (NotRenderedError) 


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# File 'lib/sassc/embedded.rb', line 66

def dependencies
  raise NotRenderedError unless @loaded_urls

  Dependency.from_filenames(@loaded_urls
    .filter { |url| url.start_with?(Protocol::FILE) && url != file_url }
    .map { |url| URL.file_url_to_path(url) })
end

#render ⇒ Object 



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# File 'lib/sassc/embedded.rb', line 14

def render
  return @template.dup if @template.empty?

  result = ::Sass.compile_string(
    @template,
    importer: import_handler.setup(nil),
    load_paths: load_paths,
    syntax: syntax,
    url: file_url,

    charset: @options.fetch(:charset, true),
    source_map: source_map_embed? || !source_map_file.nil?,
    source_map_include_sources: source_map_contents?,
    style: output_style,

    functions: functions_handler.setup(nil, functions: @functions),
    importers: @options.fetch(:importers, []),

    alert_ascii: @options.fetch(:alert_ascii, false),
    alert_color: @options.fetch(:alert_color, nil),
    logger: @options.fetch(:logger, nil),
    quiet_deps: @options.fetch(:quiet_deps, false),
    verbose: @options.fetch(:verbose, false)
  )

  @loaded_urls = result.loaded_urls
  @source_map = result.source_map

  return if quiet?

  css = result.css
  css += "\n" unless css.empty?
  unless @source_map.nil? || omit_source_map_url?
    url = URL.parse(output_url || file_url)
    source_mapping_url = if source_map_embed?
                           "data:application/json;base64,#{Base64.strict_encode64(@source_map)}"
                         else
                           URL.parse(source_map_file_url).route_from(url).to_s
                         end
    css += "\n/*# sourceMappingURL=#{source_mapping_url} */"
  end
  css
rescue ::Sass::CompileError => e
  @loaded_urls = e.loaded_urls

  line = e.span&.start&.line
  line += 1 unless line.nil?
  url = e.span&.url
  path = (URL.parse(url).route_from(URL.path_to_file_url("#{Dir.pwd}/")) if url&.start_with?(Protocol::FILE))
  raise SyntaxError.new(e.full_message, filename: path, line: line)
end

#source_map ⇒ Object

Raises:

  • (NotRenderedError) 


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# File 'lib/sassc/embedded.rb', line 74

def source_map
  raise NotRenderedError unless @source_map

  url = URL.parse(source_map_file_url || file_url)
  data = JSON.parse(@source_map)
  data['file'] = URL.parse(output_url).route_from(url).to_s if output_url
  data['sources'].map! do |source|
    if source.start_with?(Protocol::FILE)
      URL.parse(source).route_from(url).to_s
    else
      source
    end
  end

  JSON.generate(data)
end