add job to upload wheels to continuous pre-release (#1282)

Author: Titus-von-Koeller

.github/workflows/python-package.yml

@@ -101,6 +101,7 @@ jobs:
           name: shared_library_cuda_${{ matrix.os }}_${{ matrix.arch }}_${{ matrix.cuda_version }}
           path: output/*
           retention-days: 7
+
   build-wheels:
     needs:
       - build-shared-libs
@@ -121,7 +122,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
-      - name: Download build artifact
+      - name: Download build artifacts
         uses: actions/download-artifact@v4
         with:
           merge-multiple: true
@@ -152,6 +153,52 @@ jobs:
           path: dist/bitsandbytes-*.whl
           retention-days: 7
 
+  upload-pre-release-wheels:
+    name: Create release and upload artifacts
+    runs-on: ubuntu-latest
+    needs:
+      - build-wheels
+    steps:
+      - name: Download artifacts to tmp directory
+        uses: actions/download-artifact@v4
+        with:
+          path: tmp/
+          pattern: "bdist_wheel_*"
+          merge-multiple: true
+      - name: Inspect tmp directory after downloading artifacts
+        run: ls -alFR tmp/
+      - name: Move and rename wheel files
+        run: |
+          mkdir -p wheels/
+          find tmp/ -type f -name '*.whl' -print0 | while IFS= read -r -d '' wheel; do
+            wheel_filename=$(basename "$wheel")
+            if [[ $wheel_filename == *linux*x86_64* ]]; then
+              mv "$wheel" wheels/bnb-linux-x86_64.whl
+            elif [[ $wheel_filename == *linux*aarch64* ]]; then
+              mv "$wheel" wheels/bnb-linux-aarch64.whl
+            elif [[ $wheel_filename == *macosx*x86_64* ]]; then
+              mv "$wheel" wheels/bnb-macos-x86_64.whl
+            elif [[ $wheel_filename == *macosx*arm64* ]]; then
+              mv "$wheel" wheels/bnb-macos-arm64.whl
+            elif [[ $wheel_filename == *win*amd64* ]]; then
+              mv "$wheel" wheels/bnb-windows-x86_64.whl
+            else
+              echo "Unknown wheel format: $wheel_filename"
+              exit 1
+            fi
+          done
+      - name: Inspect wheels directory after renaming files
+        run: ls -alFR wheels/
+      - name: Create release and upload artifacts
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_CONTINUOUS_RELEASE_TYPE: prerelease
+          GITHUB_CONTINUOUS_RELEASE_TAG: continuous-release_main
+        run: |
+          wget -q https://github.com/TheAssassin/pyuploadtool/releases/download/continuous/pyuploadtool-x86_64.AppImage
+          chmod +x pyuploadtool-x86_64.AppImage
+          ./pyuploadtool-x86_64.AppImage --appimage-extract-and-run wheels/*.whl
+
   audit-wheels:
     needs: build-wheels
     runs-on: ubuntu-latest