[WIP] Force VS2019 as CMake generator

.github/scripts/cmake.bat

@@ -0,0 +1,5 @@
+cmake .. -DTorch_DIR="%1"^
+ -DWITH_CUDA=%2^
+ -DCMAKE_PREFIX_PATH="%CONDA_PREFIX%"^
+ -DCMAKE_FIND_FRAMEWORK=NEVER^
+ -DCMAKE_INSTALL_PREFIX="%CONDA_PREFIX%"

.github/scripts/cmake.sh

@@ -33,6 +33,7 @@ fi
 TORCH_PATH=$(python -c "import pathlib, torch; print(pathlib.Path(torch.__path__[0]))")
 if [[ $OS_TYPE == windows ]]; then
  PACKAGING_DIR="${PWD}/packaging"
+ SCRIPTS_DIR=${PWD}/.github/scripts
  export PATH="${TORCH_PATH}/lib:${PATH}"
 fi
 
@@ -65,19 +66,22 @@ echo '::endgroup::'
 echo '::group::Build and install libtorchvision'
 pushd cpp_build
 
-# On macOS, CMake is looking for the library (*.dylib) and the header (*.h) separately. By default, it prefers to load
-# the header from other packages that install the library. This easily leads to a mismatch if the library installed
-# from conda doesn't have the exact same version. Thus, we need to explicitly set CMAKE_FIND_FRAMEWORK=NEVER to force
-# it to not load anything from other installed frameworks. Resources:
-# https://stackoverflow.com/questions/36523911/osx-homebrew-cmake-libpng-version-mismatch-issue
-# https://cmake.org/cmake/help/latest/variable/CMAKE_FIND_FRAMEWORK.html
-cmake .. -DTorch_DIR="${Torch_DIR}" -DWITH_CUDA="${WITH_CUDA}" \
- -DCMAKE_PREFIX_PATH="${CONDA_PREFIX}" \
- -DCMAKE_FIND_FRAMEWORK=NEVER \
- -DCMAKE_INSTALL_PREFIX="${CONDA_PREFIX}"
 if [[ $OS_TYPE == windows ]]; then
+ "${PACKAGING_DIR}/windows/internal/vc_env_helper.bat" "${SCRIPTS_DIR}/cmake.bat" $Torch_DIR $WITH_CUDA
  "${PACKAGING_DIR}/windows/internal/vc_env_helper.bat" "${PACKAGING_DIR}/windows/internal/build_cmake.bat" $JOBS
 else
+ # On macOS, CMake is looking for the library (*.dylib) and the header (*.h) separately. By default, it prefers to load
+ # the header from other packages that install the library. This easily leads to a mismatch if the library installed
+ # from conda doesn't have the exact same version. Thus, we need to explicitly set CMAKE_FIND_FRAMEWORK=NEVER to force
+ # it to not load anything from other installed frameworks. Resources:
+ # https://stackoverflow.com/questions/36523911/osx-homebrew-cmake-libpng-version-mismatch-issue
+ # https://cmake.org/cmake/help/latest/variable/CMAKE_FIND_FRAMEWORK.html
+ cmake .. -DTorch_DIR="${Torch_DIR}" \
+ -DWITH_CUDA="${WITH_CUDA}" \
+ -DCMAKE_PREFIX_PATH="${CONDA_PREFIX}" \
+ -DCMAKE_FIND_FRAMEWORK=NEVER \
+ -DCMAKE_INSTALL_PREFIX="${CONDA_PREFIX}"
+
  make -j$JOBS
  make install
 fi
@@ -88,14 +92,16 @@ echo '::endgroup::'
 echo '::group::Build and run project that uses Faster-RCNN'
 pushd test/tracing/frcnn/build
 
-cmake .. -DTorch_DIR="${Torch_DIR}" -DWITH_CUDA="${WITH_CUDA}" \
- -DCMAKE_PREFIX_PATH="${CONDA_PREFIX}" \
- -DCMAKE_FIND_FRAMEWORK=NEVER
 if [[ $OS_TYPE == windows ]]; then
+ "${PACKAGING_DIR}/windows/internal/vc_env_helper.bat" "${SCRIPTS_DIR}/cmake.bat" $Torch_DIR $WITH_CUDA
  "${PACKAGING_DIR}/windows/internal/vc_env_helper.bat" "${PACKAGING_DIR}/windows/internal/build_frcnn.bat" $JOBS
  cd Release
  cp ../fasterrcnn_resnet50_fpn.pt .
 else
+ cmake .. -DTorch_DIR="${Torch_DIR}" -DWITH_CUDA="${WITH_CUDA}" \
+ -DCMAKE_PREFIX_PATH="${CONDA_PREFIX}" \
+ -DCMAKE_FIND_FRAMEWORK=NEVER
+
  make -j$JOBS
 fi
 
@@ -107,14 +113,16 @@ echo '::endgroup::'
 echo '::group::Build and run C++ example'
 pushd examples/cpp/hello_world/build
 
-cmake .. -DTorch_DIR="${Torch_DIR}" \
- -DCMAKE_PREFIX_PATH="${CONDA_PREFIX}" \
- -DCMAKE_FIND_FRAMEWORK=NEVER
 if [[ $OS_TYPE == windows ]]; then
+ "${PACKAGING_DIR}/windows/internal/vc_env_helper.bat" "${SCRIPTS_DIR}/cmake.bat" $Torch_DIR $WITH_CUDA
  "${PACKAGING_DIR}/windows/internal/vc_env_helper.bat" "${PACKAGING_DIR}/windows/internal/build_cpp_example.bat" $JOBS
  cd Release
  cp ../resnet18.pt .
 else
+ cmake .. -DTorch_DIR="${Torch_DIR}" \
+ -DCMAKE_PREFIX_PATH="${CONDA_PREFIX}" \
+ -DCMAKE_FIND_FRAMEWORK=NEVER
+
  make -j$JOBS
 fi