module Jekyll::Convertible
Public Instance Methods
Accessor for data properties by Liquid.
property - The String name of the property to retrieve.
Returns the String value or nil if the property isn't included.
# File lib/jekyll/convertible.rb, line 301 def [](property) if self.class::ATTRIBUTES_FOR_LIQUID.include?(property) send(property) else data[property] end end
Determine whether the document is an asset file. Asset files include CoffeeScript files and Sass/SCSS files.
Returns true if the extname belongs to the set of extensions
that asset files use.
# File lib/jekyll/convertible.rb, line 164 def asset_file? sass_file? || coffeescript_file? end
Determine whether the document is a CoffeeScript file.
Returns true if extname == .coffee, false otherwise.
# File lib/jekyll/convertible.rb, line 178 def coffeescript_file? ".coffee" == ext end
Determine which converter to use based on this convertible's extension.
Returns the Converter instance.
# File lib/jekyll/convertible.rb, line 104 def converters @converters ||= site.converters.select { |c| c.matches(ext) }.sort end
Add any necessary layouts to this convertible document.
payload - The site payload Drop or Hash. layouts - A Hash of {“name” => “layout”}.
Returns nothing.
# File lib/jekyll/convertible.rb, line 255 def do_layout(payload, layouts) Jekyll.logger.debug "Rendering:", self.relative_path Jekyll.logger.debug "Pre-Render Hooks:", self.relative_path Jekyll::Hooks.trigger hook_owner, :pre_render, self, payload info = { :filters => [Jekyll::Filters], :registers => { :site => site, :page => payload["page"] } } # render and transform content (this becomes the final content of the object) payload["highlighter_prefix"] = converters.first.highlighter_prefix payload["highlighter_suffix"] = converters.first.highlighter_suffix if render_with_liquid? Jekyll.logger.debug "Rendering Liquid:", self.relative_path self.content = render_liquid(content, payload, info, path) end Jekyll.logger.debug "Rendering Markup:", self.relative_path self.content = transform # output keeps track of what will finally be written self.output = content render_all_layouts(layouts, payload, info) if place_in_layout? Jekyll.logger.debug "Post-Render Hooks:", self.relative_path Jekyll::Hooks.trigger hook_owner, :post_render, self end
returns the owner symbol for hook triggering
# File lib/jekyll/convertible.rb, line 153 def hook_owner if is_a?(Page) :pages end end
Checks if the layout specified in the document actually exists
layout - the layout to check
Returns true if the layout is invalid, false if otherwise
# File lib/jekyll/convertible.rb, line 201 def invalid_layout?(layout) !data["layout"].nil? && layout.nil? && !(self.is_a? Jekyll::Excerpt) end
Determine the extension depending on content_type.
Returns the String extension for the output file.
e.g. ".html" for an HTML output file.
# File lib/jekyll/convertible.rb, line 96 def output_ext Jekyll::Renderer.new(site, self).output_ext end
Determine whether the file should be placed into layouts.
Returns false if the document is an asset file.
# File lib/jekyll/convertible.rb, line 192 def place_in_layout? !asset_file? end
Whether the file is published or not, as indicated in YAML front-matter
# File lib/jekyll/convertible.rb, line 26 def published? !(data.key?("published") && data["published"] == false) end
Read the YAML frontmatter.
base - The String path to the dir containing the file. name - The String filename of the file. opts - optional parameter to File.read, default at site configs
Returns nothing.
# File lib/jekyll/convertible.rb, line 37 def read_yaml(base, name, opts = {}) filename = File.join(base, name) begin self.content = File.read(@path || site.in_source_dir(base, name), Utils.merged_file_read_opts(site, opts)) if content =~ Document::YAML_FRONT_MATTER_REGEXP self.content = $POSTMATCH self.data = SafeYAML.load(Regexp.last_match(1)) end rescue SyntaxError => e Jekyll.logger.warn "YAML Exception reading #{filename}: #{e.message}" rescue => e Jekyll.logger.warn "Error reading file #{filename}: #{e.message}" end self.data ||= {} validate_data! filename validate_permalink! filename self.data end
Recursively render layouts
layouts - a list of the layouts payload - the payload for Liquid info - the info for Liquid
Returns nothing
# File lib/jekyll/convertible.rb, line 212 def render_all_layouts(layouts, payload, info) # recursively render layouts layout = layouts[data["layout"]] Jekyll.logger.warn( "Build Warning:", "Layout '#{data["layout"]}' requested in #{path} does not exist." ) if invalid_layout? layout used = Set.new([layout]) # Reset the payload layout data to ensure it starts fresh for each page. payload["layout"] = nil while layout Jekyll.logger.debug "Rendering Layout:", path payload["content"] = output payload["layout"] = Utils.deep_merge_hashes(layout.data, payload["layout"] || {}) self.output = render_liquid(layout.content, payload, info, layout.relative_path) # Add layout to dependency tree site.regenerator.add_dependency( site.in_source_dir(path), site.in_source_dir(layout.path) ) if (layout = layouts[layout.data["layout"]]) break if used.include?(layout) used << layout end end end
Render Liquid in the content
content - the raw Liquid content to render payload - the payload for Liquid info - the info for Liquid
Returns the converted content
# File lib/jekyll/convertible.rb, line 115 def render_liquid(content, payload, info, path) template = site.liquid_renderer.file(path).parse(content) template.warnings.each do |e| Jekyll.logger.warn "Liquid Warning:", LiquidRenderer.format_error(e, path || self.path) end template.render!(payload, info) # rubocop: disable RescueException rescue Exception => e Jekyll.logger.error "Liquid Exception:", LiquidRenderer.format_error(e, path || self.path) raise e end
Determine whether the file should be rendered with Liquid.
Always returns true.
# File lib/jekyll/convertible.rb, line 185 def render_with_liquid? true end
Determine whether the document is a Sass file.
Returns true if extname == .sass or .scss, false otherwise.
# File lib/jekyll/convertible.rb, line 171 def sass_file? %w(.sass .scss).include?(ext) end
Convert this Convertible's data to a Hash suitable for use by Liquid.
Returns the Hash representation of this Convertible.
# File lib/jekyll/convertible.rb, line 133 def to_liquid(attrs = nil) further_data = Hash[(attrs || self.class::ATTRIBUTES_FOR_LIQUID).map do |attribute| [attribute, send(attribute)] end] defaults = site.frontmatter_defaults.all(relative_path, type) Utils.deep_merge_hashes defaults, Utils.deep_merge_hashes(data, further_data) end
Returns the contents as a String.
# File lib/jekyll/convertible.rb, line 21 def to_s content || "" end
Transform the contents based on the content type.
Returns the transformed contents.
# File lib/jekyll/convertible.rb, line 77 def transform converters.reduce(content) do |output, converter| begin converter.convert output rescue => e Jekyll.logger.error( "Conversion error:", "#{converter.class} encountered an error while converting '#{path}':" ) Jekyll.logger.error("", e.to_s) raise e end end end
The type of a document,
i.e., its classname downcase'd and to_sym'd.
Returns the type of self.
# File lib/jekyll/convertible.rb, line 146 def type if is_a?(Page) :pages end end
# File lib/jekyll/convertible.rb, line 61 def validate_data!(filename) unless self.data.is_a?(Hash) raise Errors::InvalidYAMLFrontMatterError, "Invalid YAML front matter in #{filename}" end end
# File lib/jekyll/convertible.rb, line 68 def validate_permalink!(filename) if self.data["permalink"] && self.data["permalink"].empty? raise Errors::InvalidPermalinkError, "Invalid permalink in #{filename}" end end
Write the generated page file to the destination directory.
dest - The String path to the destination dir.
Returns nothing.
# File lib/jekyll/convertible.rb, line 289 def write(dest) path = destination(dest) FileUtils.mkdir_p(File.dirname(path)) File.write(path, output, :mode => "wb") Jekyll::Hooks.trigger hook_owner, :post_write, self end