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# frozen_string_literal: true
module Jekyll
class RelatedPosts
class << self
attr_accessor :lsi
end
attr_reader :post, :site
def initialize(post)
@post = post
@site = post.site
Jekyll::External.require_with_graceful_fail("classifier-reborn") if site.lsi
end
def build
return [] unless site.posts.docs.size > 1
if site.lsi
build_index
lsi_related_posts
else
most_recent_posts
end
end
def build_index
self.class.lsi ||= begin
lsi = ClassifierReborn::LSI.new(:auto_rebuild => false)
Jekyll.logger.info("Populating LSI...")
site.posts.docs.each do |x|
lsi.add_item(x)
end
Jekyll.logger.info("Rebuilding index...")
lsi.build_index
Jekyll.logger.info("")
lsi
end
end
def lsi_related_posts
self.class.lsi.find_related(post, 11)
end
def most_recent_posts
@most_recent_posts ||= (site.posts.docs.last(11).reverse! - [post]).first(10)
end
end
end
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