Files
blog/_plugins/post_baseurl.rb

51 lines
1.6 KiB
Ruby

# adapted from
# - https://github.com/jekyll/jekyll/blob/master/lib/jekyll/tags/post_url.rb
module Jekyll
module Tags
class PostBastUrl < Liquid::Tag
def initialize(tag_name, post, tokens)
super
@orig_post = post.strip
begin
@post = PostComparer.new(@orig_post)
rescue
raise ArgumentError.new <<-eos
Could not parse name of post "#{@orig_post}" in tag 'post_url'.
Make sure the post exists and the name is correct.
eos
end
end
def render(context)
site = context.registers[:site]
site.posts.docs.each do |p|
if @post == p
return '/' + context.registers[:site].config['baseurl'] + p.url
end
end
# New matching method did not match, fall back to old method
# with deprecation warning if this matches
site.posts.docs.each do |p|
if @post.deprecated_equality p
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 '/' + context.registers[:site].config['baseurl'] + p.url
end
end
raise ArgumentError.new <<-eos
Could not find post "#{@orig_post}" in tag 'post_url'.
Make sure the post exists and the name is correct.
eos
end
end
end
end
Liquid::Template.register_tag('post_baseurl', Jekyll::Tags::PostBastUrl)