class Jekyll::Document

Constants

DATELESS_FILENAME_MATCHER
DATE_FILENAME_MATCHER
YAML_FRONT_MATTER_REGEXP

Attributes

collection[R]
content[RW]
extname[R]
output[RW]
path[R]
site[R]

Public Class Methods

new(path, relations = {}) click to toggle source

Create a new Document.

path - the path to the file relations - a hash with keys :site and :collection, the values of which

are the Jekyll::Site and Jekyll::Collection to which this
Document belong.

Returns nothing.

# File lib/ngage/jekyll/document.rb, line 25
def initialize(path, relations = {})
  @site = relations[:site]
  @path = path
  @extname = File.extname(path)
  @collection = relations[:collection]
  @has_yaml_header = nil

  if draft?
    categories_from_path("_drafts")
  else
    categories_from_path(collection.relative_directory)
  end

  data.default_proc = proc do |_, key|
    site.frontmatter_defaults.find(relative_path, collection.label, key)
  end

  trigger_hooks(:post_init)
end

Public Instance Methods

<=>(other) click to toggle source

Compare this document against another document. Comparison is a comparison between the 2 paths of the documents.

Returns -1, 0, +1 or nil depending on whether this doc's path is less than,

equal or greater than the other doc's path. See String#<=> for more details.
# File lib/ngage/jekyll/document.rb, line 313
def <=>(other)
  return nil unless other.respond_to?(:data)

  cmp = data["date"] <=> other.data["date"]
  cmp = path <=> other.path if cmp.nil? || cmp.zero?
  cmp
end
[](key) click to toggle source
# File lib/ngage/jekyll/document.rb, line 223
def [](key)
  data[key]
end
asset_file?() click to toggle source

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/ngage/jekyll/document.rb, line 145
def asset_file?
  sass_file? || coffeescript_file?
end
basename() click to toggle source

The base filename of the document.

Returns the base filename of the document.

# File lib/ngage/jekyll/document.rb, line 113
def basename
  @basename ||= File.basename(path)
end
basename_without_ext() click to toggle source

The base filename of the document, without the file extname.

Returns the basename without the file extname.

# File lib/ngage/jekyll/document.rb, line 106
def basename_without_ext
  @basename_without_ext ||= File.basename(path, ".*")
end
categories_from_path(special_dir) click to toggle source

Add superdirectories of the special_dir to categories. In the case of es/_posts, 'es' is added as a category. In the case of _posts/es, 'es' is NOT added as a category.

Returns nothing.

# File lib/ngage/jekyll/document.rb, line 399
def categories_from_path(special_dir)
  superdirs = relative_path.sub(%r!#{special_dir}(.*)!, "")
    .split(File::SEPARATOR)
    .reject do |c|
    c.empty? || c == special_dir || c == basename
  end
  merge_data!({ "categories" => superdirs }, :source => "file path")
end
cleaned_relative_path() click to toggle source

Produces a “cleaned” relative path. The “cleaned” relative path is the relative path without the extname

and with the collection's directory removed as well.

This method is useful when building the URL of the document.

Examples:

When relative_path is "_methods/site/generate.md":
  cleaned_relative_path
  # => "/site/generate"

Returns the cleaned relative path of the document.

# File lib/ngage/jekyll/document.rb, line 128
def cleaned_relative_path
  @cleaned_relative_path ||=
    relative_path[0..-extname.length - 1].sub(collection.relative_directory, "")
end
coffeescript_file?() click to toggle source

Determine whether the document is a CoffeeScript file.

Returns true if extname == .coffee, false otherwise.

# File lib/ngage/jekyll/document.rb, line 159
def coffeescript_file?
  extname == ".coffee"
end
data() click to toggle source

Fetch the Document's data.

Returns a Hash containing the data. An empty hash is returned if

no data was read.
# File lib/ngage/jekyll/document.rb, line 49
def data
  @data ||= {}
end
date() click to toggle source

Returns the document date. If metadata is not present then calculates it based on Jekyll::Site#time or the document file modification time.

Return document date string.

# File lib/ngage/jekyll/document.rb, line 67
def date
  data["date"] ||= (draft? ? source_file_mtime : site.time)
end
destination(base_directory) click to toggle source

The full path to the output file.

base_directory - the base path of the output directory

Returns the full path to the output file of this document.

# File lib/ngage/jekyll/document.rb, line 232
def destination(base_directory)
  dest = site.in_dest_dir(base_directory)
  path = site.in_dest_dir(dest, URL.unescape_path(url))
  if url.end_with? "/"
    path = File.join(path, "index.html")
  else
    path << output_ext unless path.end_with? output_ext
  end
  path
end
draft?() click to toggle source

Returns whether the document is a draft. This is only the case if the document is in the 'posts' collection but in a different directory than '_posts'.

Returns whether the document is a draft.

# File lib/ngage/jekyll/document.rb, line 83
def draft?
  data["draft"] ||= relative_path.index(collection.relative_directory).nil? &&
    collection.label == "posts"
end
excerpt_separator() click to toggle source

The Document excerpt_separator, from the YAML Front-Matter or site default excerpt_separator value

Returns the document excerpt_separator

# File lib/ngage/jekyll/document.rb, line 335
def excerpt_separator
  (data["excerpt_separator"] || site.config["excerpt_separator"]).to_s
end
generate_excerpt?() click to toggle source

Whether to generate an excerpt

Returns true if the excerpt separator is configured.

# File lib/ngage/jekyll/document.rb, line 342
def generate_excerpt?
  !excerpt_separator.empty?
end
id() click to toggle source
# File lib/ngage/jekyll/document.rb, line 361
def id
  @id ||= File.join(File.dirname(url), (data["slug"] || basename_without_ext).to_s)
end
inspect() click to toggle source

The inspect string for this document. Includes the relative path and the collection label.

Returns the inspect string for this document.

# File lib/ngage/jekyll/document.rb, line 297
def inspect
  "#<Jekyll::Document #{relative_path} collection=#{collection.label}>"
end
merge_data!(other, source: "YAML front matter") click to toggle source

Merge some data in with this document's data.

Returns the merged data.

# File lib/ngage/jekyll/document.rb, line 56
def merge_data!(other, source: "YAML front matter")
  merge_categories!(other)
  Utils.deep_merge_hashes!(data, other)
  merge_date!(source)
  data
end
method_missing(method, *args, &blck) click to toggle source

Override of method_missing to check in @data for the key.

Calls superclass method
# File lib/ngage/jekyll/document.rb, line 379
def method_missing(method, *args, &blck)
  if data.key?(method.to_s)
    Jekyll::Deprecator.deprecation_message "Document##{method} is now a key "\
                       "in the #data hash."
    Jekyll::Deprecator.deprecation_message "Called by #{caller(0..0)}."
    data[method.to_s]
  else
    super
  end
end
next_doc() click to toggle source
# File lib/ngage/jekyll/document.rb, line 346
def next_doc
  pos = collection.docs.index { |post| post.equal?(self) }
  collection.docs[pos + 1] if pos && pos < collection.docs.length - 1
end
no_layout?() click to toggle source

Determine whether the file should be rendered with a layout.

Returns true if the Front Matter specifies that `layout` is set to `none`.

# File lib/ngage/jekyll/document.rb, line 177
def no_layout?
  data["layout"] == "none"
end
output_ext() click to toggle source

The output extension of the document.

Returns the output extension

# File lib/ngage/jekyll/document.rb, line 99
def output_ext
  @output_ext ||= Jekyll::Renderer.new(site, self).output_ext
end
place_in_layout?() click to toggle source

Determine whether the file should be placed into layouts.

Returns false if the document is set to `layouts: none`, or is either an

asset file or a yaml file. Returns true otherwise.
# File lib/ngage/jekyll/document.rb, line 185
def place_in_layout?
  !(asset_file? || yaml_file? || no_layout?)
end
populate_categories() click to toggle source
# File lib/ngage/jekyll/document.rb, line 408
def populate_categories
  merge_data!(
    "categories" => (
      Array(data["categories"]) + Utils.pluralized_array_from_hash(
        data, "category", "categories"
      )
    ).map(&:to_s).flatten.uniq
  )
end
populate_tags() click to toggle source
# File lib/ngage/jekyll/document.rb, line 418
def populate_tags
  merge_data!(
    "tags" => Utils.pluralized_array_from_hash(data, "tag", "tags").flatten
  )
end
previous_doc() click to toggle source
# File lib/ngage/jekyll/document.rb, line 351
def previous_doc
  pos = collection.docs.index { |post| post.equal?(self) }
  collection.docs[pos - 1] if pos && pos.positive?
end
published?() click to toggle source

Whether the file is published or not, as indicated in YAML front-matter

Returns 'false' if the 'published' key is specified in the YAML front-matter and is 'false'. Otherwise returns 'true'.

# File lib/ngage/jekyll/document.rb, line 261
def published?
  !(data.key?("published") && data["published"] == false)
end
read(opts = {}) click to toggle source

Read in the file and assign the content and data based on the file contents. Merge the frontmatter of the file with the frontmatter default values

Returns nothing.

# File lib/ngage/jekyll/document.rb, line 270
def read(opts = {})
  Jekyll.logger.debug "Reading:", relative_path

  if yaml_file?
    @data = SafeYAML.load_file(path)
  else
    begin
      merge_defaults
      read_content(opts)
      read_post_data
    rescue StandardError => e
      handle_read_error(e)
    end
  end
end
relative_path() click to toggle source

The path to the document, relative to the collections_dir.

Returns a String path which represents the relative path from the collections_dir to this document.

# File lib/ngage/jekyll/document.rb, line 92
def relative_path
  @relative_path ||= path.sub("#{site.collections_path}/", "")
end
render_with_liquid?() click to toggle source

Determine whether the file should be rendered with Liquid.

Returns false if the document is either an asset file or a yaml file,

or if the document doesn't contain any Liquid Tags or Variables,
true otherwise.
# File lib/ngage/jekyll/document.rb, line 168
def render_with_liquid?
  return false if data["render_with_liquid"] == false

  !(coffeescript_file? || yaml_file? || !Utils.has_liquid_construct?(content))
end
respond_to?(method, include_private = false) click to toggle source

Override of normal respond_to? to match method_missing's logic for looking in @data.

Calls superclass method
# File lib/ngage/jekyll/document.rb, line 374
def respond_to?(method, include_private = false)
  data.key?(method.to_s) || super
end
respond_to_missing?(method, *) click to toggle source
Calls superclass method
# File lib/ngage/jekyll/document.rb, line 390
def respond_to_missing?(method, *)
  data.key?(method.to_s) || super
end
sass_file?() click to toggle source

Determine whether the document is a Sass file.

Returns true if extname == .sass or .scss, false otherwise.

# File lib/ngage/jekyll/document.rb, line 152
def sass_file?
  %w(.sass .scss).include?(extname)
end
source_file_mtime() click to toggle source

Return document file modification time in the form of a Time object.

Return document file modification Time object.

# File lib/ngage/jekyll/document.rb, line 74
def source_file_mtime
  File.mtime(path)
end
to_liquid() click to toggle source

Create a Liquid-understandable version of this Document.

Returns a Hash representing this Document's data.

# File lib/ngage/jekyll/document.rb, line 289
def to_liquid
  @to_liquid ||= Drops::DocumentDrop.new(self)
end
to_s() click to toggle source

The string representation for this document.

Returns the content of the document

# File lib/ngage/jekyll/document.rb, line 304
def to_s
  output || content || "NO CONTENT"
end
trigger_hooks(hook_name, *args) click to toggle source
# File lib/ngage/jekyll/document.rb, line 356
def trigger_hooks(hook_name, *args)
  Jekyll::Hooks.trigger collection.label.to_sym, hook_name, self, *args if collection
  Jekyll::Hooks.trigger :documents, hook_name, self, *args
end
url() click to toggle source

The computed URL for the document. See `Jekyll::URL#to_s` for more details.

Returns the computed URL for the document.

# File lib/ngage/jekyll/document.rb, line 215
def url
  @url ||= URL.new(
    :template     => url_template,
    :placeholders => url_placeholders,
    :permalink    => permalink
  ).to_s
end
url_placeholders() click to toggle source

Construct a Hash of key-value pairs which contain a mapping between

a key in the URL template and the corresponding value for this document.

Returns the Hash of key-value pairs for replacement in the URL.

# File lib/ngage/jekyll/document.rb, line 200
def url_placeholders
  @url_placeholders ||= Drops::UrlDrop.new(self)
end
url_template() click to toggle source

The URL template where the document would be accessible.

Returns the URL template for the document.

# File lib/ngage/jekyll/document.rb, line 192
def url_template
  collection.url_template
end
write(dest) click to toggle source

Write the generated Document file to the destination directory.

dest - The String path to the destination dir.

Returns nothing.

# File lib/ngage/jekyll/document.rb, line 248
def write(dest)
  path = destination(dest)
  FileUtils.mkdir_p(File.dirname(path))
  Jekyll.logger.debug "Writing:", path
  File.write(path, output, :mode => "wb")

  trigger_hooks(:post_write)
end
write?() click to toggle source

Determine whether this document should be written. Based on the Collection to which it belongs.

True if the document has a collection and if that collection's write? method returns true, and if the site's Publisher will publish the document. False otherwise.

# File lib/ngage/jekyll/document.rb, line 327
def write?
  collection&.write? && site.publisher.publish?(self)
end
yaml_file?() click to toggle source

Determine whether the document is a YAML file.

Returns true if the extname is either .yml or .yaml, false otherwise.

# File lib/ngage/jekyll/document.rb, line 136
def yaml_file?
  %w(.yaml .yml).include?(extname)
end

Private Instance Methods

generate_excerpt() click to toggle source
# File lib/ngage/jekyll/document.rb, line 499
def generate_excerpt
  data["excerpt"] ||= Jekyll::Excerpt.new(self) if generate_excerpt?
end
handle_read_error(error) click to toggle source
# File lib/ngage/jekyll/document.rb, line 466
def handle_read_error(error)
  if error.is_a? Psych::SyntaxError
    Jekyll.logger.error "Error:", "YAML Exception reading #{path}: #{error.message}"
  else
    Jekyll.logger.error "Error:", "could not read file #{path}: #{error.message}"
  end

  if site.config["strict_front_matter"] || error.is_a?(Jekyll::Errors::FatalException)
    raise error
  end
end
merge_categories!(other) click to toggle source
# File lib/ngage/jekyll/document.rb, line 426
def merge_categories!(other)
  if other.key?("categories") && !other["categories"].nil?
    other["categories"] = other["categories"].split if other["categories"].is_a?(String)
    other["categories"] = (data["categories"] || []) | other["categories"]
  end
end
merge_date!(source) click to toggle source
# File lib/ngage/jekyll/document.rb, line 433
def merge_date!(source)
  if data.key?("date")
    data["date"] = Utils.parse_date(
      data["date"].to_s,
      "Document '#{relative_path}' does not have a valid date in the #{source}."
    )
  end
end
merge_defaults() click to toggle source
# File lib/ngage/jekyll/document.rb, line 442
def merge_defaults
  defaults = @site.frontmatter_defaults.all(
    relative_path,
    collection.label.to_sym
  )
  merge_data!(defaults, :source => "front matter defaults") unless defaults.empty?
end
modify_date(date) click to toggle source
# File lib/ngage/jekyll/document.rb, line 493
def modify_date(date)
  if !data["date"] || data["date"].to_i == site.time.to_i
    merge_data!({ "date" => date }, :source => "filename")
  end
end
populate_title() click to toggle source
# File lib/ngage/jekyll/document.rb, line 478
def populate_title
  if relative_path =~ DATE_FILENAME_MATCHER
    date, slug, ext = Regexp.last_match.captures
    modify_date(date)
  elsif relative_path =~ DATELESS_FILENAME_MATCHER
    slug, ext = Regexp.last_match.captures
  end

  # Try to ensure the user gets a title.
  data["title"] ||= Utils.titleize_slug(slug)
  # Only overwrite slug & ext if they aren't specified.
  data["slug"]  ||= slug
  data["ext"]   ||= ext
end
read_content(opts) click to toggle source
# File lib/ngage/jekyll/document.rb, line 450
def read_content(opts)
  self.content = File.read(path, Utils.merged_file_read_opts(site, opts))
  if content =~ YAML_FRONT_MATTER_REGEXP
    self.content = $POSTMATCH
    data_file = SafeYAML.load(Regexp.last_match(1))
    merge_data!(data_file, :source => "YAML front matter") if data_file
  end
end
read_post_data() click to toggle source
# File lib/ngage/jekyll/document.rb, line 459
def read_post_data
  populate_title
  populate_categories
  populate_tags
  generate_excerpt
end