anchor.diff:  echo 0 > %cache_dir%\error_code.txt
   type %cache_dir%\error_code.txt
   
  -:: ci will collect clcache hit rate
  +:: ci will collect sccache hit rate
   if "%WITH_SCCACHE%"=="ON" (
       call :collect_sccache_hits
   )
  
positive.code: for /f "tokens=2,3" %%i in ('type sccache_summary.txt ^| findstr "requests hits" ^| findstr /V "executed C/C++ CUDA"') do set %%i=%%j
  if %requests% EQU 0 (
      echo "sccache hit rate: 0%"
      echo ipipe_log_param_Clcache_Hit_Hate: 0%
  ) else (
      set /a rate=!hits!*10000/!requests!
      echo "sccache hit rate: !rate:~0,-2!.!rate:~-2!%%"
      echo ipipe_log_param_Clcache_Hit_Hate: !rate:~0,2!.!rate:~2,2!%%
  )
  
  goto:eof
  
negative.code:     set SCCACHE_ERROR_LOG=D:\sccache\sccache_log.txt
      set SCCACHE_LOG=quiet
      sccache --start-server
      sccache -z
      goto :CASE_%1
  ) else (
      del %PYTHON_ROOT%\sccache.exe 2> NUL
      goto :CASE_%1
  )
  
  