# File lib/bundler/plugin/api/source.rb, line 129
        def specs
          files = fetch_gemspec_files

          Bundler::Index.build do |index|
            files.each do |file|
              next unless spec = Bundler.load_gemspec(file)
              Bundler.rubygems.set_installed_by_version(spec)

              spec.source = self
              Bundler.rubygems.validate(spec)

              index << spec
            end
          end
        end