build wheels without build isolation

ci/build_wheel.sh

@@ -35,7 +35,15 @@ RAPIDS_PY_CUDA_SUFFIX="$(rapids-wheel-ctk-name-gen ${RAPIDS_CUDA_VERSION})"
 
 cd "${package_dir}"
 
-python -m pip wheel . -w dist -vvv --no-deps --disable-pip-version-check
+rapids-logger "Building '${package_name}' wheel"
+python -m pip wheel \
+    -w dist \
+    -v \
+    --no-deps \
+    --disable-pip-version-check \
+    .
+
+sccache --show-adv-stats
 
 mkdir -p final_dist
 python -m auditwheel repair \

ci/build_wheel_libcuspatial.sh

@@ -3,4 +3,34 @@
 
 set -euo pipefail
 
-ci/build_wheel.sh libcuspatial python/libcuspatial cpp
+package_name="libcuspatial"
+
+git clone \
+  --branch multiple-file-keys \
+  https://github.com/jameslamb/dependency-file-generator.git \
+  /tmp/rapids-dependency-file-generator
+
+pip uninstall --yes rapids-dependency-file-generator
+pip install /tmp/rapids-dependency-file-generator
+
+rapids-logger "Generating build requirements"
+matrix_selectors="cuda=${RAPIDS_CUDA_VERSION%.*};arch=$(arch);py=${RAPIDS_PY_VERSION};cuda_suffixed=true"
+
+rapids-dependency-file-generator \
+  --output requirements \
+  --file-key "py_build_${package_name}" \
+  --file-key "py_rapids_build_${package_name}" \
+  --matrix "${matrix_selectors}" \
+| tee /tmp/requirements-build.txt
+
+rapids-logger "Installing build requirements"
+python -m pip install \
+    -v \
+    --prefer-binary \
+    -r /tmp/requirements-build.txt
+
+# build with '--no-build-isolation', for better sccache hit rate
+# 0 really means "add --no-build-isolation" (ref: https://github.com/pypa/pip/issues/5735)
+export PIP_NO_BUILD_ISOLATION=0
+
+ci/build_wheel.sh "${package_name}" python/libcuspatial cpp