appveyor: cache C:\CUDA\*

appveyor.yml

@@ -16,19 +16,25 @@ environment:
   HUNTER_CACHE_TOKEN:
     secure: VnpF1MH5MEFvUI5MiMMMFlmbDdst+bfom5ZFVgalYPp/SYDhbejjXJm9Dla/IgpC
 
+cache:
+  - C:\CUDA\v8.0 -> appveyor.yml
+  - C:\CUDA\v9.1 -> appveyor.yml
+  - C:\CUDA\v10.0 -> appveyor.yml
+
 # Download CUDA Windows installer (local) and extract /compiler/* to /CUDA/vX.0/ zip archive.
 install: |
   git submodule update --init --recursive
   if "%CUDA_VER%" == "8.0" set CUDA_ARCHIVE=cuda_8.0.61_windows-exe
   if "%CUDA_VER%" == "9.1" set CUDA_ARCHIVE=cuda_9.1.85_windows
   if "%CUDA_VER%" == "10.0" set CUDA_ARCHIVE=cuda_10.0.130_411.31_windows
-  if "%CUDA_VER%" NEQ "8.0" curl -L https://developer.nvidia.com/compute/cuda/%CUDA_VER%/Prod/local_installers/%CUDA_ARCHIVE% -o %CUDA_ARCHIVE%.exe
-  if "%CUDA_VER%" == "8.0" curl -L https://developer.nvidia.com/compute/cuda/8.0/Prod2/local_installers/cuda_8.0.61_windows-exe -o %CUDA_ARCHIVE%.exe
-  mkdir C:\CUDA
-  if "%CUDA_VER%" NEQ "8.0" 7z x %CUDA_ARCHIVE%.exe -oC:\CUDA nvcc/*
-  if "%CUDA_VER%" == "8.0" 7z x %CUDA_ARCHIVE%.exe -oC:\CUDA compiler/*
-  if "%CUDA_VER%" NEQ "8.0" rename C:\CUDA\nvcc v%CUDA_VER%
-  if "%CUDA_VER%" == "8.0" rename C:\CUDA\compiler v%CUDA_VER%
+  if NOT EXIST C:\CUDA\v%CUDA_VER% (if "%CUDA_VER%" NEQ "8.0" curl -L https://developer.nvidia.com/compute/cuda/%CUDA_VER%/Prod/local_installers/%CUDA_ARCHIVE% -o %CUDA_ARCHIVE%.exe)
+  if NOT EXIST C:\CUDA\v%CUDA_VER% (if "%CUDA_VER%" == "8.0" curl -L https://developer.nvidia.com/compute/cuda/8.0/Prod2/local_installers/cuda_8.0.61_windows-exe -o %CUDA_ARCHIVE%.exe)
+  if NOT EXIST C:\CUDA mkdir C:\CUDA
+  if NOT EXIST C:\CUDA\v%CUDA_VER% (if "%CUDA_VER%" NEQ "8.0" 7z x %CUDA_ARCHIVE%.exe -oC:\CUDA nvcc/* nvrtc*/*)
+  if NOT EXIST C:\CUDA\v%CUDA_VER% (if "%CUDA_VER%" == "8.0" 7z x %CUDA_ARCHIVE%.exe -oC:\CUDA compiler/* nvrtc*/*)
+  if NOT EXIST C:\CUDA\v%CUDA_VER% (if "%CUDA_VER%" NEQ "8.0" rename C:\CUDA\nvcc v%CUDA_VER%)
+  if NOT EXIST C:\CUDA\v%CUDA_VER% (if "%CUDA_VER%" == "8.0" rename C:\CUDA\compiler v%CUDA_VER%)
+
   set PATH=C:\Python36-x64;C:\Python36-x64\Scripts;%PATH%;C:\CUDA\v%CUDA_VER%\bin
   pip install requests gitpython
   nvcc -V