add mingw CI

co-authored-by: messense <[email protected]>

Author: davidhewitt

.github/workflows/ci.yml

@@ -357,3 +357,46 @@ jobs:
           CIBW_BUILD_VERBOSITY: 1
         with:
           package-dir: examples/namespace_package
+
+  test-mingw:
+    runs-on: windows-latest
+    name:  ${{ matrix.python-version }} mingw-${{ matrix.arch }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include: [
+          { msystem: MINGW64, arch: x86_64, path: mingw64, rust_target: x86_64-pc-windows-gnu },
+          { msystem: MINGW32, arch: i686, path: mingw32, rust_target: i686-pc-windows-gnu }
+        ]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install MSys2 and dependencies
+        uses: msys2/setup-msys2@v2
+        with:
+          update: true
+          msystem: ${{ matrix.msystem }}
+          install: >-
+            git
+            mingw-w64-${{ matrix.arch }}-python
+            mingw-w64-${{ matrix.arch }}-python-pip
+            mingw-w64-${{ matrix.arch }}-openssl
+            mingw-w64-${{ matrix.arch }}-toolchain
+
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable-${{ matrix.rust_target }}
+          default: true
+
+      - name: Install test dependencies
+        shell: msys2 {0}
+        run: python -m pip install --upgrade nox pip wheel
+
+      - name: Create libpython symlink
+        shell: msys2 {0}
+        run: ln -s /${{ matrix.path }}/lib/libpython3.10.dll.a /${{ matrix.path }}/lib/libpython310.dll.a
+
+      - name: Test examples
+        shell: msys2 {0}
+        run: |
+          PATH="$PATH:/c/Users/runneradmin/.cargo/bin" nox -s test-mingw

noxfile.py

@@ -2,6 +2,7 @@
 import tarfile
 from glob import glob
 from pathlib import Path
+from unittest.mock import patch
 
 import nox
 
@@ -35,3 +36,40 @@ def mypy(session: nox.Session):
 def test(session: nox.Session):
     session.install("pytest", ".")
     session.run("pytest", "setuptools_rust", "tests", *session.posargs)
+
+
+@nox.session(name="test-mingw")
+def test_mingw(session: nox.Session):
+    # manually re-implemented test-examples to workaround
+    # https://github.com/wntrblm/nox/issues/630
+
+    oldrun = nox.command.run
+
+    def newrun(*args, **kwargs):
+        # suppress "external" error on install
+        kwargs["external"] = True
+        oldrun(*args, **kwargs)
+
+    def chdir(path: Path):
+        print(path)
+        os.chdir(path)
+
+    examples = Path(os.path.dirname(__file__)).absolute() / "examples"
+
+    with patch.object(nox.command, "run", newrun):
+        session.install(".")
+
+        session.install("--no-build-isolation", str(examples / "hello-world"))
+        session.run("hello-world")
+
+        session.install("pytest", "pytest-benchmark", "beautifulsoup4")
+        session.install("--no-build-isolation", str(examples / "html-py-ever"))
+        session.run("pytest", str(examples / "html-py-ever"))
+
+        session.install("pytest")
+        session.install("--no-build-isolation", str(examples / "html-py-ever"))
+        session.run("pytest", str(examples / "html-py-ever"))
+
+        session.install("pytest", "cffi")
+        session.install("--no-build-isolation", str(examples / "html-py-ever"))
+        session.run("pytest", str(examples / "html-py-ever"))