Class: Jekyll::LunrJsSearch::Indexer

Inherits:
Object
  • Object
show all
Defined in:
lib/lunr/LunrIndexer.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.path_to_asset(path) ⇒ Object 



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# File 'lib/lunr/LunrIndexer.rb', line 98

def self.path_to_asset(path)
  return File.join(File.dirname(__FILE__), "../../#{path}")
end

Instance Method Details

#generate(site, packages) ⇒ Object

Parameters:

  • site (Jekyll::Site)
  • packages (Array<App>)

Returns:

  • (Object) 


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# File 'lib/lunr/LunrIndexer.rb', line 21

def generate(site, packages)
  @js_dir = 'js'

  ctx = V8::Context.new
  ctx.load(Indexer.path_to_asset('bower_components/lunr.js/lunr.js'))

  ctx['indexer'] = proc do |this|
    this.ref('id')
    this.field('name')
    this.field('summary')
  end

  ctx.eval('builder = new lunr.Builder')
  ctx.eval('builder.pipeline.add(lunr.trimmer, lunr.stopWordFilter)')
  ctx.eval('indexer.call(builder, builder)')

  @lunr_version = ctx.eval('lunr.version')
  @docs = {}

  Jekyll.logger.info "Lunr:", "Creating search index (lunr.js version #{@lunr_version})..."

  @site = site

  packages.each_with_index do |package, i|
    doc = {
      'id' => i,
      'packageName' => package.package_name,
      'icon' => package.icon,
      'name' => package.name,
      'summary' => package.summary
    }

    ctx['builder'].add(doc)
    @docs[i] = doc

    Jekyll.logger.debug "Lunr:", package.package_name
  end

  @index = ctx.eval('builder.build()')

  FileUtils.mkdir_p(File.join(site.dest, @js_dir))
  filename = File.join(@js_dir, 'index.json')

  total = {
    "docs" => @docs,
    "index" => @index.to_hash
  }

  filepath = File.join(site.dest, filename)
  File.open(filepath, "w") { |f| f.write(JSON.dump(total)) }
  Jekyll.logger.info "Lunr:", "Index ready (lunr.js v#{@lunr_version})"
  added_files = [filename]

  site_js = File.join(site.dest, @js_dir)
  extras = [
    'assets/fdroid-search-autocomplete.js',
    'assets/fdroid-search-autocomplete-init.js',
    'assets/register-listener.js',
    'bower_components/lunr.js/lunr.js',
    'bower_components/mustache.js/mustache.min.js',
    'bower_components/awesomplete/awesomplete.min.js',
    'bower_components/awesomplete/awesomplete.css'
  ]
  Jekyll.logger.info "Lunr:", "Added required assets to #{@js_dir}"
  extras.each do |path|
    src = Indexer.path_to_asset(path)
    Jekyll.logger.debug "Lunr:", "Copying asset from #{src} to #{site_js}"
    FileUtils.cp(src, site_js)
    added_files.push(File.join(@js_dir, File.basename(src)))
  end

  # Keep the written files from being cleaned by Jekyll
  added_files.each do |filename|
    site.static_files << SearchIndexFile.new(site, site.dest, "/", filename)
  end
end