File _service of Package folly

<services>
<service name="download_url">
   <param name="url">https://api.github.com/repos/facebook/folly/releases/latest</param> 
 </service>
 <service name="set_version">
   <param name="fromfile">_service:download_url:latest</param>
   <param name="regex">.*"tag_name"\s*:\s*"v(.*)"</param>
 </service>
 <service name="download_files"/>
  <!--service name="format_cmake" mode="buildtime">
    <param name="cmake-directory">dwarfs</param>
    <param name="file">dwarfs.spec</param>
  </service-->
  <!--service name="tar_scm">
    <param name="scm">git</param>
    <param name="url">https://aur.archlinux.org/folly.git</param>
    <param name="without-version">enable</param>
    <param name="filename">folly_aur</param>
  </service-->
</services>