Added MacOS with M1 build

.github/workflows/build_wheels_linux.yml

@@ -4,6 +4,10 @@ on:
   pull_request:
     branches:
       - master
+    paths-ignore:
+      - '.github/workflows/build_wheels_linux_arm.yml'
+      - '.github/workflows/build_wheels_windows*'
+      - '.github/workflows/build_wheels_macos*'
   release:
     types: [published, edited]
 

.github/workflows/build_wheels_linux_arm.yml

@@ -4,6 +4,10 @@ on:
   pull_request:
     branches:
       - master
+    paths-ignore:
+      - '.github/workflows/build_wheels_linux.yml'
+      - '.github/workflows/build_wheels_windows*'
+      - '.github/workflows/build_wheels_macos*'
   release:
     types: [published, edited]
 

.github/workflows/build_wheels_macos.yml

@@ -4,6 +4,10 @@ on:
   pull_request:
     branches:
       - master
+    paths-ignore:
+      - '.github/workflows/build_wheels_linux*'
+      - '.github/workflows/build_wheels_windows*'
+      - '.github/workflows/build_wheels_macos_m1.yml'
   release:
     types: [published, edited]
 

.github/workflows/build_wheels_macos_m1.yml

@@ -0,0 +1,117 @@
+name: Build PYPI wheels for opencv-python on Macos M1
+
+on:
+  pull_request:
+    branches:
+      - master
+    paths-ignore:
+      - '.github/workflows/build_wheels_linux*'
+      - '.github/workflows/build_wheels_windows*'
+      - '.github/workflows/build_wheels_macos.yml'
+  release:
+    types: [published, edited]
+
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macOS-M1]
+        python-version: [3.7, 3.8, 3.9]
+        platform: [x64]
+        with_contrib: [0, 1]
+        without_gui: [0, 1]
+        build_sdist: [0]
+
+    env:
+      SDIST: ${{ matrix.build_sdist || 0 }}
+      ENABLE_HEADLESS: ${{ matrix.without_gui }}
+      ENABLE_CONTRIB: ${{ matrix.with_contrib }}
+      OPENCV_TEST_DATA_PATH: ${{ github.workspace }}/opencv_extra/testdata
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        submodules: false
+        fetch-depth: 0
+
+    - name: Update submodules
+      if: github.event_name == 'pull_request'
+      run: git submodule update --remote
+
+    - name: build script
+      run: |
+        git submodule update --init multibuild
+        echo $ENABLE_CONTRIB > contrib.enabled
+        echo $ENABLE_HEADLESS > headless.enabled
+        export MACOSX_DEPLOYMENT_TARGET=11.0
+        arch -arm64 python${{ matrix.python-version }} -m pip wheel --wheel-dir=wheelhouse . --verbose
+    - name: before test
+      run: |
+        git submodule update --init --recursive
+        arch -arm64 python${{ matrix.python-version }} -m pip install --user --no-cache --force-reinstall wheelhouse/opencv*.whl
+        cd ${{ github.workspace }}/tests
+        arch -arm64 python${{ matrix.python-version }} get_build_info.py
+    - name: run test
+      run: |
+        cd ${{ github.workspace }}/opencv
+        arch -arm64 python${{ matrix.python-version }} modules/python/test/test.py -v --repo .
+    - name: saving artifacts
+      uses: actions/upload-artifact@v2
+      with:
+        name: wheels
+        path: wheelhouse/opencv*.whl
+
+  test_release_opencv_python:
+    if: github.event_name == 'release' && github.event.release.prerelease
+    needs: [build]
+    runs-on: ubuntu-latest
+    environment: test-opencv-python-release
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - uses: actions/download-artifact@v2
+        with:
+          name: wheels
+          path: wheelhouse/
+
+      - name: Upload all wheels
+        run: |
+          python -m pip install twine
+          python -m twine upload --repository testpypi -u ${{ secrets.PYPI_USERNAME }} -p ${{ secrets.PYPI_PASSWORD }} --skip-existing wheelhouse/opencv_*
+
+  release_opencv_python:
+    if: github.event_name == 'release' && !github.event.release.prerelease
+    needs: [build]
+    runs-on: ubuntu-latest
+    environment: opencv-python-release
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - uses: actions/download-artifact@v2
+        with:
+          name: wheels
+          path: wheelhouse/
+
+      - name: Upload wheels for opencv_python
+        run: |
+          python -m pip install twine
+          python -m twine upload -u ${{ secrets.OPENCV_PYTHON_USERNAME }} -p ${{ secrets.OPENCV_PYTHON_PASSWORD }} --skip-existing wheelhouse/opencv_python-*
+      - name: Upload wheels for opencv_contrib_python
+        run: |
+          python -m pip install twine
+          python -m twine upload -u ${{ secrets.OPENCV_CONTRIB_PYTHON_USERNAME }} -p ${{ secrets.OPENCV_CONTRIB_PYTHON_PASSWORD }} --skip-existing wheelhouse/opencv_contrib_python-*
+      - name: Upload wheels for opencv_python_headless
+        run: |
+          python -m pip install twine
+          python -m twine upload -u ${{ secrets.OPENCV_PYTHON_HEADLESS_USERNAME }} -p ${{ secrets.OPENCV_PYTHON_HEADLESS_PASSWORD }} --skip-existing wheelhouse/opencv_python_headless-*
+      - name: Upload wheels for opencv_contrib_python_headless
+        run: |
+          python -m pip install twine
+          python -m twine upload -u ${{ secrets.OPENCV_CONTRIB_PYTHON_HEADLESS_USERNAME }} -p ${{ secrets.OPENCV_CONTRIB_PYTHON_HEADLESS_PASSWORD }} --skip-existing wheelhouse/opencv_contrib_python_headless-*

.github/workflows/build_wheels_windows.yml

@@ -4,6 +4,9 @@ on:
   pull_request:
     branches:
       - master
+    paths-ignore:
+      - '.github/workflows/build_wheels_linux*'
+      - '.github/workflows/build_wheels_macos*'
   release:
     types: [published, edited]
 

pyproject.toml

@@ -1,10 +1,10 @@
 [build-system]
 requires = [
   "setuptools", "wheel", "scikit-build", "cmake", "pip",
-  "numpy==1.13.3; python_version=='3.6' and platform_machine != 'aarch64'",
+  "numpy==1.13.3; python_version=='3.6' and platform_machine != 'aarch64' and platform_machine != 'arm64'",
   "numpy==1.19.3; python_version>='3.6' and sys_platform == 'linux' and platform_machine == 'aarch64'",
-  "numpy==1.20.1; python_version>='3.6' and sys_platform == 'darwin' and platform_machine == 'aarch64'",
-  "numpy==1.14.5; python_version=='3.7' and platform_machine != 'aarch64'",
-  "numpy==1.17.3; python_version=='3.8' and platform_machine != 'aarch64'",
-  "numpy==1.19.3; python_version>='3.9' and platform_machine != 'aarch64'"
+  "numpy==1.21.0; python_version>='3.6' and sys_platform == 'darwin' and platform_machine == 'arm64'",
+  "numpy==1.14.5; python_version=='3.7' and platform_machine != 'aarch64' and platform_machine != 'arm64'",
+  "numpy==1.17.3; python_version=='3.8' and platform_machine != 'aarch64' and platform_machine != 'arm64'",
+  "numpy==1.19.3; python_version>='3.9' and platform_machine != 'aarch64' and platform_machine != 'arm64'"
 ]

setup.py

@@ -36,8 +36,8 @@ def main():
         minimum_supported_numpy = "1.19.3"
 
     # macos arm64 is a special case
-    if sys.platform == "darwin" and sys.version_info[:2] >= (3, 6) and platform.machine() == "aarch64":
-        minimum_supported_numpy = "1.20.1"
+    if sys.platform == "darwin" and sys.version_info[:2] >= (3, 6) and platform.machine() == "arm64":
+        minimum_supported_numpy = "1.21.0"
 
     numpy_version = "numpy>=%s" % minimum_supported_numpy