Class: Jekyll::Tags::PostUrl

Inherits:
Liquid::Tag
  • Object
show all
Includes:
Filters::URLFilters
Defined in:
lib/jekyll/tags/post_url.rb

Instance Method Summary collapse

Methods included from Filters::URLFilters

#absolute_url, #relative_url, #strip_index

Constructor Details

#initialize(tag_name, post, tokens) ⇒ PostUrl

Returns a new instance of PostUrl.


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# File 'lib/jekyll/tags/post_url.rb', line 62

def initialize(tag_name, post, tokens)
  super
  @orig_post = post.strip
  begin
    @post = PostComparer.new(@orig_post)
  rescue StandardError => e
    raise Jekyll::Errors::PostURLError, <<~MSG
      Could not parse name of post "#{@orig_post}" in tag 'post_url'.
       Make sure the post exists and the name is correct.
       #{e.class}: #{e.message}
    MSG
  end
end

Instance Method Details

#render(context) ⇒ Object


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# File 'lib/jekyll/tags/post_url.rb', line 76

def render(context)
  @context = context
  site = context.registers[:site]

  site.posts.docs.each do |document|
    return relative_url(document) if @post == document
  end

  # New matching method did not match, fall back to old method
  # with deprecation warning if this matches

  site.posts.docs.each do |document|
    next unless @post.deprecated_equality document

    Jekyll::Deprecator.deprecation_message "A call to "\
      "'{% post_url #{@post.name} %}' did not match " \
      "a post using the new matching method of checking name " \
      "(path-date-slug) equality. Please make sure that you " \
      "change this tag to match the post's name exactly."
    return relative_url(document)
  end

  raise Jekyll::Errors::PostURLError, <<~MSG
    Could not find post "#{@orig_post}" in tag 'post_url'.
    Make sure the post exists and the name is correct.
  MSG
end