Build QEMU-emulated Linux aarch64 wheels on GitHub Actions instead of Travis CI

.github/workflows/test-cygwin.yml

@@ -8,15 +8,13 @@ on:
       - ".github/workflows/docs.yml"
       - ".github/workflows/wheels*"
       - ".gitmodules"
-      - ".travis.yml"
       - "docs/**"
       - "wheels/**"
   pull_request:
     paths-ignore:
       - ".github/workflows/docs.yml"
       - ".github/workflows/wheels*"
       - ".gitmodules"
-      - ".travis.yml"
       - "docs/**"
       - "wheels/**"
   workflow_dispatch:

.github/workflows/test-docker.yml

@@ -8,15 +8,13 @@ on:
       - ".github/workflows/docs.yml"
       - ".github/workflows/wheels*"
       - ".gitmodules"
-      - ".travis.yml"
       - "docs/**"
       - "wheels/**"
   pull_request:
     paths-ignore:
       - ".github/workflows/docs.yml"
       - ".github/workflows/wheels*"
       - ".gitmodules"
-      - ".travis.yml"
       - "docs/**"
       - "wheels/**"
   workflow_dispatch:

.github/workflows/test-mingw.yml

@@ -8,15 +8,13 @@ on:
       - ".github/workflows/docs.yml"
       - ".github/workflows/wheels*"
       - ".gitmodules"
-      - ".travis.yml"
       - "docs/**"
       - "wheels/**"
   pull_request:
     paths-ignore:
       - ".github/workflows/docs.yml"
       - ".github/workflows/wheels*"
       - ".gitmodules"
-      - ".travis.yml"
       - "docs/**"
       - "wheels/**"
   workflow_dispatch:

.github/workflows/test-windows.yml

@@ -6,15 +6,13 @@ on:
       - ".github/workflows/docs.yml"
       - ".github/workflows/wheels*"
       - ".gitmodules"
-      - ".travis.yml"
       - "docs/**"
       - "wheels/**"
   pull_request:
     paths-ignore:
       - ".github/workflows/docs.yml"
       - ".github/workflows/wheels*"
       - ".gitmodules"
-      - ".travis.yml"
       - "docs/**"
       - "wheels/**"
   workflow_dispatch:

.github/workflows/test.yml

@@ -8,15 +8,13 @@ on:
       - ".github/workflows/docs.yml"
       - ".github/workflows/wheels*"
       - ".gitmodules"
-      - ".travis.yml"
       - "docs/**"
       - "wheels/**"
   pull_request:
     paths-ignore:
       - ".github/workflows/docs.yml"
       - ".github/workflows/wheels*"
       - ".gitmodules"
-      - ".travis.yml"
       - "docs/**"
       - "wheels/**"
   workflow_dispatch:

.github/workflows/wheels.yml

@@ -30,7 +30,64 @@ env:
   FORCE_COLOR: 1
 
 jobs:
-  build:
+  build-1-QEMU-emulated-wheels:
+    name: aarch64 ${{ matrix.python-version }} ${{ matrix.spec }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version:
+          - pp39
+          - pp310
+          - cp38
+          - cp39
+          - cp310
+          - cp311
+          - cp312
+        spec:
+          - manylinux2014
+          - manylinux_2_28
+          - musllinux
+        exclude:
+          - { python-version: pp39, spec: musllinux }
+          - { python-version: pp310, spec: musllinux }
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.x"
+
+      # https://github.com/docker/setup-qemu-action
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Install cibuildwheel
+        run: |
+          python3 -m pip install -r .ci/requirements-cibw.txt
+
+      - name: Build wheels
+        run: |
+          python3 -m cibuildwheel --output-dir wheelhouse
+        env:
+          # Build only the currently selected Linux architecture (so we can
+          # parallelise for speed).
+          CIBW_ARCHS: "aarch64"
+          # Likewise, select only one Python version per job to speed this up.
+          CIBW_BUILD: "${{ matrix.python-version }}-${{ matrix.spec == 'musllinux' && 'musllinux' || 'manylinux' }}*"
+          # Extra options for manylinux.
+          CIBW_MANYLINUX_AARCH64_IMAGE: ${{ matrix.spec }}
+          CIBW_MANYLINUX_PYPY_AARCH64_IMAGE: ${{ matrix.spec }}
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: dist-qemu-${{ matrix.python-version }}-${{ matrix.spec }}
+          path: ./wheelhouse/*.whl
+
+  build-2-native-wheels:
     name: ${{ matrix.name }}
     runs-on: ${{ matrix.os }}
     strategy:
@@ -62,9 +119,12 @@ jobs:
         with:
           python-version: "3.x"
 
-      - name: Build wheels
+      - name: Install cibuildwheel
         run: |
           python3 -m pip install -r .ci/requirements-cibw.txt
+
+      - name: Build wheels
+        run: |
           python3 -m cibuildwheel --output-dir wheelhouse
         env:
           CIBW_ARCHS: ${{ matrix.cibw_arch }}
@@ -106,6 +166,10 @@ jobs:
         with:
           python-version: "3.x"
 
+      - name: Install cibuildwheel
+        run: |
+          python.exe -m pip install -r .ci/requirements-cibw.txt
+
       - name: Prepare for build
         run: |
           choco install nasm --no-progress
@@ -114,8 +178,6 @@ jobs:
           # Install extra test images
           xcopy /S /Y Tests\test-images\* Tests\images
 
-          & python.exe -m pip install -r .ci/requirements-cibw.txt
-
           & python.exe winbuild\build_prepare.py -v --no-imagequant --architecture=${{ matrix.arch }}
         shell: pwsh
 
@@ -187,7 +249,7 @@ jobs:
 
   pypi-publish:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
-    needs: [build, windows, sdist]
+    needs: [build-1-QEMU-emulated-wheels, build-2-native-wheels, windows, sdist]
     runs-on: ubuntu-latest
     name: Upload release to PyPI
     environment:

README.md

@@ -48,9 +48,6 @@ As of 2019, Pillow development is
             <a href="https://github.com/python-pillow/Pillow/actions/workflows/wheels.yml"><img
                 alt="GitHub Actions build status (Wheels)"
                 src="https://github.com/python-pillow/Pillow/workflows/Wheels/badge.svg"></a>
-            <a href="https://app.travis-ci.com/github/python-pillow/Pillow"><img
-                alt="Travis CI wheels build status (aarch64)"
-                src="https://img.shields.io/travis/com/python-pillow/Pillow/main.svg?label=aarch64%20wheels"></a>
             <a href="https://app.codecov.io/gh/python-pillow/Pillow"><img
                 alt="Code coverage"
                 src="https://codecov.io/gh/python-pillow/Pillow/branch/main/graph/badge.svg"></a>

RELEASING.md

@@ -10,7 +10,7 @@ Released quarterly on January 2nd, April 1st, July 1st and October 15th.
 * [ ] Open a release ticket e.g. https://github.com/python-pillow/Pillow/issues/3154
 * [ ] Develop and prepare release in `main` branch.
 * [ ] Check [GitHub Actions](https://github.com/python-pillow/Pillow/actions) and [AppVeyor](https://ci.appveyor.com/project/python-pillow/Pillow) to confirm passing tests in `main` branch.
-* [ ] Check that all of the wheel builds pass the tests in the [GitHub Actions "Wheels" workflow](https://github.com/python-pillow/Pillow/actions/workflows/wheels.yml) and [Travis CI](https://app.travis-ci.com/github/python-pillow/pillow) jobs by manually triggering them.
+* [ ] Check that all the wheel builds pass the tests in the [GitHub Actions "Wheels" workflow](https://github.com/python-pillow/Pillow/actions/workflows/wheels.yml) jobs by manually triggering them.
 * [ ] In compliance with [PEP 440](https://peps.python.org/pep-0440/), update version identifier in `src/PIL/_version.py`
 * [ ] Update `CHANGES.rst`.
 * [ ] Run pre-release check via `make release-test` in a freshly cloned repo.
@@ -83,12 +83,6 @@ Released as needed privately to individual vendors for critical security-related
 * [ ] Check the [GitHub Actions "Wheels" workflow](https://github.com/python-pillow/Pillow/actions/workflows/wheels.yml)
   has passed, including the "Upload release to PyPI" job. This will have been triggered
   by the new tag.
-* [ ] Download the Linux aarch64 wheels created by Travis CI from [GitHub releases](https://github.com/python-pillow/Pillow/releases)
-  and copy into `dist`. Check and upload them e.g.:
-  ```bash
-  python3 -m twine check --strict dist/*
-  python3 -m twine upload dist/pillow-5.2.0*
-  ```
 
 ## Publicize Release
 

docs/about.rst

@@ -6,13 +6,12 @@ Goals
 
 The fork author's goal is to foster and support active development of PIL through:
 
-- Continuous integration testing via `GitHub Actions`_, `AppVeyor`_ and `Travis CI`_
+- Continuous integration testing via `GitHub Actions`_ and `AppVeyor`_
 - Publicized development activity on `GitHub`_
 - Regular releases to the `Python Package Index`_
 
 .. _GitHub Actions: https://github.com/python-pillow/Pillow/actions
 .. _AppVeyor: https://ci.appveyor.com/project/Python-pillow/pillow
-.. _Travis CI: https://app.travis-ci.com/github/python-pillow/Pillow
 .. _GitHub: https://github.com/python-pillow/Pillow
 .. _Python Package Index: https://pypi.org/project/Pillow/
 

docs/index.rst

@@ -41,10 +41,6 @@ Pillow for enterprise is available via the Tidelift Subscription. `Learn more <h
    :target: https://github.com/python-pillow/Pillow/actions/workflows/wheels.yml
    :alt: GitHub Actions build status (Wheels)
 
-.. image:: https://img.shields.io/travis/com/python-pillow/Pillow/main.svg?label=aarch64%20wheels
-   :target: https://app.travis-ci.com/github/python-pillow/Pillow
-   :alt: Travis CI wheels build status (aarch64)
-
 .. image:: https://codecov.io/gh/python-pillow/Pillow/branch/main/graph/badge.svg
    :target: https://app.codecov.io/gh/python-pillow/Pillow
    :alt: Code coverage