[CI] Reduce wheel size by not shipping debug symbols (#4602)

.buildkite/check-wheel-size.py

@@ -25,6 +25,9 @@ def check_wheel_size(directory):
                         f"compare to the allowed size ({MAX_SIZE_MB} MB).")
                     print_top_10_largest_files(wheel_path)
                     return 1
+                else:
+                    print(f"Wheel {wheel_path} is within the allowed size "
+                          f"({wheel_size_mb} MB).")
     return 0
 
 

.github/workflows/publish.yml

@@ -79,6 +79,8 @@ jobs:
 
       - name: Build wheel
         shell: bash
+        env:
+          CMAKE_BUILD_TYPE: Release # do not compile with debug symbol to reduce wheel size
         run: |
           bash -x .github/workflows/scripts/build.sh ${{ matrix.python-version }} ${{ matrix.cuda-version }}
           wheel_name=$(ls dist/*whl | xargs -n 1 basename)