anchor.diff:  for f in connectivity*; do  mv_stamp $f ${stamp}; done
   mv_stamp statistics.sqlite ${stamp}
   mv_stamp maproulette_tasks.geojson ${stamp}
  -cp_stamp <%= node[:valhalla][:transit_dir] %>.tgz ${stamp}
   cp_stamp ${tile_dir}/$(basename ${admin_file}) ${stamp}
   cp_stamp ${tile_dir}/$(basename ${timezone_file}) ${stamp}
   pushd ${tile_dir}
  
positive.code: fi
  
  #transit data
  if [ -f <%= node[:valhalla][:transit_dir] %>.tgz ]; then
    rm -rf <%= node[:valhalla][:transit_dir] %>
    mkdir <%= node[:valhalla][:transit_dir] %>
    tar pxf <%= node[:valhalla][:transit_dir] %>.tgz -C <%= node[:valhalla][:transit_dir] %>
  fi
  
  # cut tiles from the data
  valhalla_build_tiles -c <%= node[:valhalla][:config] %> $(find <%= node[:valhalla][:extracts_dir] %> -type f -name "*.pbf")
  
negative.code:       aws s3 rm ${1}$(echo ${record} | awk '{print $4}')
      fi
    done
  }
  
  function get_latest_transit() {
    latest=0
    latest_upload=""
    files=$(aws s3 ls ${1}transit_)
    while read record; do
      added=$(date -d "$(echo ${record} | awk '{print $1" "$2}')" +%s)
      if [[ ${added} -gt ${latest} ]]; then
        latest=${added}
        latest_upload=${1}$(echo ${record} | awk '{print $4}')
      fi
    done <<< "$files"
  
    aws s3 cp $latest_upload <%= node[:valhalla][:transit_dir] %>_latest.tgz
  
    #if first run, use the latest.
    if [ ! -f <%= node[:valhalla][:transit_dir] %>.tgz ]; then
      mv <%= node[:valhalla][:transit_dir] %>_latest.tgz <%= node[:valhalla][:transit_dir] %>.tgz
    else
      latest=$(md5sum <%= node[:valhalla][:transit_dir] %>_latest.tgz)
      in_use=$(md5sum <%= node[:valhalla][:transit_dir] %>.tgz)
  
      # new version has been uploaded.
      if [ "$latest" -ne "$in_use" ]; then
        mv <%= node[:valhalla][:transit_dir] %>_latest.tgz <%= node[:valhalla][:transit_dir] %>.tgz
  
        rm -rf <%= node[:valhalla][:transit_dir] %>
        mkdir <%= node[:valhalla][:transit_dir] %>
        tar pxf <%= node[:valhalla][:transit_dir] %>.tgz -C <%= node[:valhalla][:transit_dir] %>
      else
        rm <%= node[:valhalla][:transit_dir] %>_latest.tgz
      fi
    fi
  }
  
  function fail() {
  