Class: Middleman::Lunr::Indexer

Inherits:
Object
  • Object
show all
Defined in:
lib/middleman-lunr/indexer.rb

Instance Method Summary collapse

Constructor Details

#initialize(extension) ⇒ Indexer

Returns a new instance of Indexer.



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# File 'lib/middleman-lunr/indexer.rb', line 6

def initialize(extension)
  @extension = extension
end

Instance Method Details

#generate(options) ⇒ Object 



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# File 'lib/middleman-lunr/indexer.rb', line 10

def generate(options)
  docs = []
  fields = []
  map = {}

  if options[:body]
    fields.push(:body)
  end

  options[:data].each do |d|
    fields.push(d)
  end

  @extension.sitemap.resources.each do |res|
    if res.data[:index]
      doc = { id: res.url.to_s }
      key = res.url.to_s
      data = {}

      if options[:body]
        doc[:body] = File.read(res.source_file)
      end

      options[:data].each do |d|
        doc[d] = res.data[d]
        data[d.to_s] = res.data[d]
      end

      docs << doc
      map[key] = data
    end
  end

  cxt = V8::Context.new
  cxt.load(File.expand_path('../../../js/lunr.min.js', __FILE__))
  cxt.eval('lunr.Index.prototype.dumpIndex = function(){return JSON.stringify(this.toJSON());}')
  ref = cxt.eval('lunr')

  lunr_conf = proc do |this|
    this.ref('id')
    fields.each do |name|
      this.field(name) #, {:boost => boost})
    end
  end

  idx = ref.call(lunr_conf)

  docs.each do |doc|
    idx.add(doc)
  end

  data = JSON.parse(idx.dumpIndex(), max_nesting: false)

  { index: data, map: map }
end