[ci] Add libtaichi_export_core build for desktop in CI

.github/workflows/scripts/unix_build.sh

@@ -49,7 +49,7 @@ setup_python() {
     python3 -m pip install -r requirements_dev.txt
 }
 
-build() {
+build_taichi_wheel() {
     git fetch origin master
     PROJECT_TAGS=""
     EXTRA_ARGS=""
@@ -69,12 +69,21 @@ build() {
     sccache -s
 }
 
+build_libtaichi_export() {
+    git fetch origin master
+    python3 setup.py build_ext
+}
+
 setup_sccache
 setup_python
-build
-cat "$SCCACHE_ERROR_LOG" || true
-NUM_WHL=$(ls dist/*.whl | wc -l)
-if [ $NUM_WHL -ne 1 ]; then echo "ERROR: created more than 1 whl." && exit 1; fi
+
+if [ "$EXPORT_CORE" == "1" ]; then
+    build_libtaichi_export
+else
+    build_taichi_wheel
+    NUM_WHL=$(ls dist/*.whl | wc -l)
+    if [ $NUM_WHL -ne 1 ]; then echo "ERROR: created more than 1 whl." && exit 1; fi
+fi
 
 chmod -R 777 "$SCCACHE_DIR"
 rm -f python/CHANGELOG.md

.github/workflows/testing.yml

@@ -415,3 +415,57 @@ jobs:
           PY: ${{ matrix.python }}
           PLATFORM: 'm1'
           TI_CI: 1
+
+  build_libtaichi_export:
+    name: Build libtaichi_export.so(GPU)
+    needs: check_files
+    runs-on: [self-hosted, cuda, vulkan, cn]
+    timeout-minutes: 60
+    strategy:
+      matrix:
+        include:
+          - os: ubuntu-latest
+            python: py39
+            with_cc: ON
+    permissions:
+      packages: read
+      contents: read
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: "recursive"
+
+      - name: Get sccache cache
+        uses: actions/cache@v2
+        with:
+          path: sccache_cache
+          key: sccache-linux-${{matrix.with_cc}}-${{ github.sha }}
+          restore-keys: |
+            sccache-linux-${{matrix.with_cc}}-
+
+      - name: Build For Desktop
+        run: |
+          if [[ ${{needs.check_files.outputs.run_job}} == false ]]; then
+            exit 0
+          fi
+          docker create --user dev --name taichi_build_desktop --gpus all -v /tmp/.X11-unix:/tmp/.X11-unix \
+            -e PY -e GPU_BUILD -e PROJECT_NAME -e TAICHI_CMAKE_ARGS -e DISPLAY -e EXPORT_CORE\
+            registry.taichigraphics.com/taichidev-ubuntu18.04:v0.2.1 \
+            /home/dev/taichi/.github/workflows/scripts/unix_build.sh
+          # A tarball is needed because sccache needs some permissions that only the file owner has.
+          # 1000 is the uid and gid of user "dev" in the container.
+          # If the uid or gid of the user inside the docker changes, please change the uid and gid in the following line.
+          tar -cf - ../${{ github.event.repository.name }} --mode u=+rwx,g=+rwx,o=+rwx --owner 1000 --group 1000 | docker cp - taichi_build_desktop:/home/dev/
+          docker start -a taichi_build_desktop
+        env:
+          PY: ${{ matrix.python }}
+          GPU_BUILD: ON
+          PROJECT_NAME: taichi
+          TAICHI_CMAKE_ARGS: -DTI_WITH_VULKAN:BOOL=ON -DTI_WITH_CUDA:BOOL=OFF -DTI_WITH_OPENGL:BOOL=OFF -DTI_WITH_LLVM:BOOL=OFF -DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache -DTI_EXPORT_CORE:BOOL=ON
+          EXPORT_CORE: 1
+          DISPLAY: :1
+
+      - name: clean docker container
+        if: always()
+        run: |
+          docker rm taichi_build_desktop -f

cmake/TaichiExportCore.cmake

@@ -4,4 +4,3 @@ set(TAICHI_EXPORT_CORE_NAME taichi_export_core)
 
 add_library(${TAICHI_EXPORT_CORE_NAME} SHARED)
 target_link_libraries(${TAICHI_EXPORT_CORE_NAME} taichi_isolated_core)
-install(TARGETS ${TAICHI_EXPORT_CORE_NAME} DESTINATION ${CMAKE_CURRENT_SOURCE_DIR}/build)