ENH: determine wheel tags by Python interpreter introspection & tests and CI improvements

.github/workflows/checks.yml

@@ -17,15 +17,15 @@ jobs:
     env:
       FORCE_COLOR: true
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Setup Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: 3.7
 
-      - name: Install nox
-        run: python -m pip install nox
+      - name: Install mypy
+        run: python -m pip --disable-pip-version-check install mypy==0.981
 
-      - name: Run check for type
-        run: nox -s mypy
+      - name: Run mypy
+        run: mypy -p mesonpy

.github/workflows/ci-sage.yml

@@ -63,7 +63,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out ${{ env.SPKG }}
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           path: build/pkgs/${{ env.SPKG }}/src
       - name: Install prerequisites

.github/workflows/tests.yml

@@ -13,7 +13,7 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  pytest:
+  test:
     runs-on: ${{ matrix.os }}-latest
     env:
       FORCE_COLOR: true
@@ -35,10 +35,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Set up target Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python }}
 
@@ -60,3 +60,178 @@ jobs:
           flags: tests
           env_vars: PYTHON
           name: ${{ matrix.python }}
+
+  cygwin:
+    runs-on: windows-latest
+    env:
+      FORCE_COLOR: true
+    strategy:
+      fail-fast: false
+      matrix:
+        python:
+          - '3.9'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Cygwin
+        uses: cygwin/cygwin-install-action@v2
+        with:
+          packages: >-
+            python39
+            python39-devel
+            python39-pip
+            python39-setuptools
+            cmake
+            gcc-core
+            gcc-g++
+            git
+            make
+            ninja
+
+      - name: Fix git dubious ownership
+        # This addresses the "fatal: detected dubious ownership in
+        # repository" and "fatal: not in a git directory" errors
+        # encountered when trying to run Cygwin git in a directory not
+        # owned by the current user. This happens when the tests run
+        # Cygwin git in a directory outside the Cygwin filesystem.
+        run: git config --global --add safe.directory '*'
+        shell: C:\cygwin\bin\env.exe CYGWIN_NOWINPATH=1 CHERE_INVOKING=1 C:\cygwin\bin\bash.exe -leo pipefail -o igncr {0}
+
+      - name: Get pip cache path
+        id: pip-cache-path
+        run: echo "path=$(cygpath -w $(python -m pip cache dir))" >> $GITHUB_OUTPUT
+        shell: C:\cygwin\bin\env.exe CYGWIN_NOWINPATH=1 CHERE_INVOKING=1 C:\cygwin\bin\bash.exe -leo pipefail -o igncr {0}
+
+      - name: Restore cache
+        # Cygwin Python cannot use binary wheels from PyPI. Building
+        # some dependencies takes considerable time. Caching the built
+        # wheels speeds up the CI job quite a bit.
+        uses: actions/cache@v3
+        with:
+          path: ${{ steps.pip-cache-path.outputs.path }}
+          key: cygwin-pip-${{ github.sha }}
+          restore-keys: cygwin-pip-
+
+      - name: Install
+        # Cygwin patches Python's ensurepip module to look for the
+        # wheels needed to initialize a new virtual environment in
+        # /usr/share/python-wheels/ but nothing in Cygwin actually
+        # puts the setuptools and pip wheels there. Fix this.
+        run: |
+          mkdir /usr/share/python-wheels/
+          pushd /usr/share/python-wheels/
+          python -m pip --disable-pip-version-check download setuptools pip
+          popd
+          python -m pip --disable-pip-version-check install .[test]
+        shell: C:\cygwin\bin\env.exe CYGWIN_NOWINPATH=1 CHERE_INVOKING=1 C:\cygwin\bin\bash.exe -leo pipefail -o igncr {0}
+
+      - name: Run tests
+        run: >-
+          python -m pytest --showlocals -vv --cov
+          --cov-config setup.cfg
+          --cov-report=xml:coverage-${{ matrix.python }}.xml
+        shell: C:\cygwin\bin\env.exe CYGWIN_NOWINPATH=1 CHERE_INVOKING=1 C:\cygwin\bin\bash.exe -leo pipefail -o igncr {0}
+
+      - name: Send coverage report
+        uses: codecov/codecov-action@v1
+        if: ${{ always() }}
+        env:
+          PYTHON: cygwin-${{ matrix.python }}
+        with:
+          flags: tests
+          env_vars: PYTHON
+          name: cygwin-${{ matrix.python }}
+
+  pyston:
+    runs-on: ubuntu-20.04
+    env:
+      FORCE_COLOR: true
+    strategy:
+      fail-fast: false
+      matrix:
+        python:
+          - '3.8'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install pyston
+        run: |
+          wget https://github.com/pyston/pyston/releases/download/pyston_2.3.5/pyston_2.3.5_20.04_amd64.deb
+          sudo apt install $(pwd)/pyston_2.3.5_20.04_amd64.deb
+
+      - name: Install
+        run: pyston -m pip --disable-pip-version-check install .[test]
+
+      - name: Run tests
+        run: >-
+          pyston -m pytest --showlocals -vv --cov
+          --cov-config setup.cfg
+          --cov-report=xml:coverage-pyston.xml
+
+      - name: Send coverage report
+        uses: codecov/codecov-action@v1
+        if: ${{ always() }}
+        env:
+          PYTHON: pyston
+        with:
+          flags: tests
+          env_vars: PYTHON
+          name: pyston
+
+  homebrew:
+    runs-on: macos-latest
+    env:
+      FORCE_COLOR: true
+    strategy:
+      fail-fast: false
+      matrix:
+        python:
+          - '3.7'
+          - '3.8'
+          - '3.9'
+          - '3.10'
+          - '3.11'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install Homebrew Python
+        run: |
+          brew install --overwrite python@${{ matrix.python }}
+          echo /usr/local/opt/python@${{ matrix.python }}/libexec/bin/ >> $GITHUB_PATH
+
+      - name: Patch pip
+        # Patch https://github.com/pypa/pip/issues/11539
+        run: |
+          cat >>/usr/local/lib/python${{ matrix.python }}/site-packages/pip/_internal/locations/_sysconfig.py <<EOF
+          def get_prefixed_libs(prefix: str) -> typing.Tuple[str, str]:
+              if "venv" in sysconfig.get_scheme_names():
+                  paths = sysconfig.get_paths(vars={"base": prefix, "platbase": prefix}, scheme="venv")
+              else:
+                  paths = sysconfig.get_paths(vars={"base": prefix, "platbase": prefix})
+              return (paths["purelib"], paths["platlib"])
+          EOF
+
+      - name: Install
+        run: python -m pip --disable-pip-version-check install .[test]
+
+      - name: Run tests
+        run: >-
+          python -m pytest --showlocals -vv --cov
+          --cov-config setup.cfg
+          --cov-report=xml:coverage-homebrew-${{ matrix.python }}.xml
+
+      - name: Send coverage report
+        uses: codecov/codecov-action@v1
+        if: ${{ always() }}
+        env:
+          PYTHON: homebrew-${{ matrix.python }}
+        with:
+          flags: tests
+          env_vars: PYTHON
+          name: homebrew-${{ matrix.python }}