Parallelize and add more wheel builds

.github/workflows/build.yaml

@@ -2,69 +2,103 @@ name: Build
 
 on: [push]
 
+env:
+  WORKING_DIRECTORY: 'dlib'
+  BUILD_COMMIT: 'v19.24.2'
+  DLIB_BIN_VERSION: '19.24.2'
+  PYTHON_REQUIRES: '>=3.7'
+
 jobs:
+  build_wheels_matrix:
+    runs-on: ubuntu-latest
+    outputs:
+      include: ${{ steps.set-matrix.outputs.include }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+
+      - run: pip install cibuildwheel==2.17.0  # sync version with pypa/cibuildwheel below
+
+      - id: set-matrix
+        env:
+          CIBW_PROJECT_REQUIRES_PYTHON: '>=3.7'  # it is missing in setup.py and needed to determine which wheels to build
+        run: |
+          MATRIX_INCLUDE=$(
+            {
+              cibuildwheel --print-build-identifiers --platform linux --arch x86_64,aarch64 | grep cp |  jq -nRc '{"only": inputs, "os": "ubuntu-latest"}' \
+              && cibuildwheel --print-build-identifiers --platform macos --arch x86_64 | grep cp |  jq -nRc '{"only": inputs, "os": "macos-13"}' \
+              && cibuildwheel --print-build-identifiers --platform macos --arch arm64 | grep cp |  jq -nRc '{"only": inputs, "os": "macos-14"}' \
+              && cibuildwheel --print-build-identifiers --platform windows --arch AMD64 | grep cp |  jq -nRc '{"only": inputs, "os": "windows-latest"}'
+            } | jq -sc
+          )
+          echo "include=$MATRIX_INCLUDE" >> $GITHUB_OUTPUT
+        working-directory: ${{ env.WORKING_DIRECTORY }}
+
   build_wheels:
-    name: Build wheels on ${{ matrix.os }}
+    needs: build_wheels_matrix
     runs-on: ${{ matrix.os }}
+    name: Build ${{ matrix.only }}
+
     strategy:
+      fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-    env:
-      REPO_DIR: 'dlib'
-      BUILD_COMMIT: 'v19.24.2'
-      DLIB_BIN_VERSION: '19.24.2'
-      CIBUILDWHEEL_VERSION: '2.17.0'
-      CIBW_BEFORE_BUILD: 'pip install cmake'
-      CIBW_BUILD: 'cp37-* cp38-* cp39-* cp310-* cp311-*'
-      CIBW_SKIP: '*musllinux*'
-      CIBW_ARCHS: 'auto64'
+        include: ${{ fromJson(needs.build_wheels_matrix.outputs.include) }}
 
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-
-      - name: Checkout submodules
+    defaults:
+      run:
         shell: bash
-        run: |
-          git submodule update --init --recursive
-          git -C dlib checkout $BUILD_COMMIT
 
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: '3.10'
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: true
 
-      - name: Fix setup.py
-        shell: bash
-        run: |
-          sed -i'' -e "s/name='dlib'/name='dlib-bin'/" $REPO_DIR/setup.py
-          sed -i'' -e "s/version=read_version_from_cmakelists('dlib\/CMakeLists.txt')/version='$DLIB_BIN_VERSION'/" $REPO_DIR/setup.py
-          sed -i'' -e "s/url='https:\/\/github\.com\/davisking\/dlib'/url='https:\/\/github\.com\/alesanfra\/dlib-wheels'/" $REPO_DIR/setup.py
-          sed -i'' -e "s/_cmake_extra_options = \[\]/_cmake_extra_options = \['-DDLIB_NO_GUI_SUPPORT=ON'\]/" $REPO_DIR/setup.py
+    - name: Checkout build commit
+      run: git fetch --all && git checkout $BUILD_COMMIT
+      working-directory: ${{ env.WORKING_DIRECTORY }}
 
-      - name: Install cibuildwheel
-        shell: bash
-        run: python -m pip install cibuildwheel==$CIBUILDWHEEL_VERSION
-
-      - name: Build wheels
-        shell: bash
-        run: python3 -m cibuildwheel $REPO_DIR --output-dir wheelhouse
+    - name: Fix setup.py
+      run: |
+        sed -i'' -e "s/name='dlib'/name='dlib-bin'/" setup.py
+        sed -i'' -e "s/version=read_version_from_cmakelists('dlib\/CMakeLists.txt')/version='$DLIB_BIN_VERSION'/" setup.py
+        sed -i'' -e "s/url='https:\/\/github\.com\/davisking\/dlib'/url='https:\/\/github\.com\/alesanfra\/dlib-wheels'/" setup.py
+        sed -i'' -e "s/_cmake_extra_options = \[\]/_cmake_extra_options = \['-DDLIB_NO_GUI_SUPPORT=ON'\]/" setup.py
+      working-directory: ${{ env.WORKING_DIRECTORY }}
+
+    - name: Set up QEMU
+      if: runner.os == 'Linux'
+      uses: docker/setup-qemu-action@v3
 
-      - name: Save wheels
-        uses: actions/upload-artifact@v3
-        with:
-          path: ./wheelhouse/*.whl
+    - uses: pypa/cibuildwheel@v2.17.0  # sync version with pip install cibuildwheel above
+      with:
+        only: ${{ matrix.only }}
+        package-dir: ${{ env.WORKING_DIRECTORY }}
+      env:
+        CIBW_BUILD_VERBOSITY: 1
+        CIBW_BEFORE_BUILD: pip install cmake
+        CIBW_TEST_COMMAND: python -c "import dlib"
 
+    - uses: actions/upload-artifact@v4
+      with:
+        name: dist-${{ matrix.only }}
+        path: wheelhouse/*.whl
+
   upload_pypi:
     needs: [build_wheels]
     runs-on: ubuntu-latest
     # upload to PyPI on master
     if: github.event_name == 'push' && github.ref == 'refs/heads/master'
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
-          name: artifact
-          path: dist
+          path: dist/
+          pattern: dist-*
+          merge-multiple: true
 
       - uses: pypa/gh-action-pypi-publish@release/v1
         with: