anchor.diff:      where pip
       pip install wheel --user
       pip install pyyaml --user
  +    pip install wget --user
       pip install -r %work_dir%\python\requirements.txt --user
       if !ERRORLEVEL! NEQ 0 (
           echo pip install requirements.txt failed!
  
positive.code: echo There is not sccache in this PC, will install sccache.
  echo Download package from https://paddle-ci.gz.bcebos.com/window_requirement/sccache.exe
  %PYTHON_ROOT%\python.exe -c "import wget;wget.download('https://paddle-ci.gz.bcebos.com/window_requirement/sccache.exe')"
  xcopy sccache.exe %PYTHON_ROOT%\Scripts\ /Y
  goto:eof
  rem -------Caching strategy 2: End --------------------------------
  
  
negative.code: 
  
  rem -------Caching strategy 2: sccache decorate compiler-----------
  if not defined SCCACHE_ROOT set SCCACHE_ROOT=D:\sccache
  if "%WITH_SCCACHE%"=="ON" (
      cmd /C sccache -V || call :install_sccache
      sccache --stop-server 2> NUL
      del %SCCACHE_ROOT%\sccache_log.txt
  
      :: Localy storage on windows
      if not exist %SCCACHE_ROOT% mkdir %SCCACHE_ROOT%
      set SCCACHE_DIR=%SCCACHE_ROOT%\.cache
      
      :: Sccache will shut down if a source file takes more than 10 mins to compile
      set SCCACHE_IDLE_TIMEOUT=0
      set SCCACHE_CACHE_SIZE=100G
      set SCCACHE_ERROR_LOG=%SCCACHE_ROOT%\sccache_log.txt
      set SCCACHE_LOG=quiet
  
      :: Distributed storage on windows
  