Class: Jekyll::AsciiDoc::Integrator

Inherits:
Generator
  • Object
show all
Defined in:
lib/jekyll-asciidoc/integrator.rb

Overview

Registers before and after render hooks to set contextual attributes, promotes eligible AsciiDoc attributes to page variables, and applies certain page-level settings.

Constant Summary collapse

NewLine = 
Utils::NewLine
StandaloneOptionLine = 
Utils::StandaloneOptionLine

Instance Method Summary collapse

Instance Method Details

#generate(site) ⇒ Object 



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# File 'lib/jekyll-asciidoc/integrator.rb', line 14

def generate site
  @converter = converter = (Utils.get_converter site).setup

  if defined? ::Jekyll::Hooks
    before_render_callback = converter.method :before_render
    after_render_callback = converter.method :after_render
    [:pages, :documents].each do |collection_name|
      ::Jekyll::Hooks.register collection_name, :pre_render, &before_render_callback
      ::Jekyll::Hooks.register collection_name, :post_render, &after_render_callback
    end
  end

  unless (@page_attr_prefix = site.config['asciidoc']['page_attribute_prefix']).empty?
    @page_attr_prefix = %(#{@page_attr_prefix}-)
  end

  site.pages.select! do |page|
    (converter.matches page.ext) ? (integrate page) : true
  end

  # NOTE posts were migrated to a collection named 'posts' in Jekyll 3
  site.posts.select! do |post|
    (converter.matches post.ext) ? (integrate post, 'posts') : true
  end if site.respond_to? :posts=

  site.collections.each do |name, collection|
    next unless collection.write?
    collection.docs.select! do |doc|
      (converter.matches doc.extname) ? (integrate doc, name) : true
    end
  end

  if (attrs = site.config['asciidoctor'][:attributes]) &&
      ((attrs['source-highlighter'] || '').chomp '@') == 'pygments' &&
      ((attrs['pygments-css'] || '').chomp '@') != 'style' && (attrs.fetch 'pygments-stylesheet', '')
    generate_pygments_stylesheet site, attrs
  end
end

#generate_pygments_stylesheet(site, attrs) ⇒ Object 



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# File 'lib/jekyll-asciidoc/integrator.rb', line 96

def generate_pygments_stylesheet site, attrs
  css_base = site.source
  unless (css_dir = (attrs['stylesdir'] || '').chomp '@').empty? || (css_dir.start_with? '/')
    css_dir = %(/#{css_dir})
  end
  if (css_name = attrs['pygments-stylesheet']).nil_or_empty?
    css_name = 'asciidoc-pygments.css'
  end
  css_file = ::File.join css_base, css_dir, css_name
  css_style = (attrs['pygments-style'] || 'vs').chomp '@'
  css = ::Asciidoctor::Stylesheets.instance.pygments_stylesheet_data css_style
  # NOTE apply stronger CSS rule for general text color
  css = css.sub '.listingblock .pygments  {', '.listingblock .pygments, .listingblock .pygments code {'
  if site.static_files.any? {|f| f.path == css_file }
    ::IO.write css_file, css unless css == (::IO.read css_file)
  else
    ::Asciidoctor::Helpers.mkdir_p ::File.dirname css_file
    ::IO.write css_file, css
    site.static_files << (::Jekyll::StaticFile.new site, css_base, css_dir, css_name)
  end
end

#integrate(document, collection_name = nil) ⇒ Object

Integrate the page-related attributes from the AsciiDoc document header into the data Array of the specified Page, Post or Document.

document - the Page, Post or Document instance to integrate. collection_name - the String name of the collection to which this

document belongs (optional, default: nil).

Returns a [Boolean] indicating whether the document should be published.



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# File 'lib/jekyll-asciidoc/integrator.rb', line 62

def integrate document, collection_name = nil
  document.extend Document
  document.content = [%(:#{@page_attr_prefix}layout: _auto), document.content] * NewLine unless document.data.key? 'layout'
  return unless (doc = @converter.load_header document)

  document.data['title'] = doc.doctitle if doc.header?
  document.data['author'] = doc.author if doc.author
  document.data['date'] = (::DateTime.parse doc.revdate).to_time if collection_name == 'posts' && (doc.attr? 'revdate')

  no_prefix = (prefix_size = @page_attr_prefix.length).zero?
  unless (adoc_header_data = doc.attributes
      .each_with_object({}) {|(key, val), accum|
        if no_prefix || ((key.start_with? @page_attr_prefix) && key = key[prefix_size..-1])
          accum[key] = ::String === val ? (Utils.parse_yaml_value val) : val
        end
      }).empty?
    document.data.update adoc_header_data
  end

  case document.data['layout']
  when nil
    document.content = %(#{StandaloneOptionLine}#{document.content}) unless document.data.key? 'layout'
  when '', '_auto'
    layout = collection_name ? (collection_name.chomp 's') : 'page'
    document.data['layout'] = (document.site.layouts.key? layout) ? layout : 'default'
  when false
    document.data.delete 'layout'
    document.content = %(#{StandaloneOptionLine}#{document.content})
  end

  document.extend NoLiquid unless document.data['liquid']
  document.data.fetch 'published', true
end