migrate to hynek/build-and-inspect-python-package for packaging and testing

Author: RonnyPfannschmidt

.github/workflows/main.yml

@@ -12,7 +12,17 @@ on:
       - main
 
 jobs:
-  build:
+  check-package:
+    name: Build & inspect our package.
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: hynek/build-and-inspect-python-package@v2
+  test:
+    needs: [check-package]
     runs-on: ${{ matrix.os }}
 
     strategy:
@@ -87,9 +97,11 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+    - name: Download built packages from the check-package job.
+      uses: actions/download-artifact@v4
       with:
-        fetch-depth: 0
-
+        name: Packages
+        path: dist
     - name: Set up Python ${{ matrix.python }}
       uses: actions/setup-python@v5
       with:
@@ -103,11 +115,13 @@ jobs:
 
     - name: Test without coverage
       if: "! matrix.use_coverage"
-      run: "tox -e ${{ matrix.tox_env }}"
+      shell: bash
+      run: "tox run -e ${{ matrix.tox_env }}  --installpkg dist/*.whl"
 
     - name: Test with coverage
       if: "matrix.use_coverage"
-      run: "tox -e ${{ matrix.tox_env }}-coverage"
+      shell: bash
+      run: "tox run -e ${{ matrix.tox_env }}-coverage --installpkg dist/*.whl"
 
     - name: Upload coverage
       if: matrix.use_coverage && github.repository == 'pytest-dev/pluggy'
@@ -119,27 +133,17 @@ jobs:
         verbose: true
 
   deploy:
+    needs: [check-package]
     if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags') && github.repository == 'pytest-dev/pluggy'
     runs-on: ubuntu-latest
     permissions:
       id-token: write
     steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - uses: actions/setup-python@v5
+      - name: Download built packages from the check-package job.
+        uses: actions/download-artifact@v4
         with:
-          python-version: "3.x"
-
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install --upgrade build
-
-      - name: Build package
-        run: python -m build --sdist --wheel --outdir dist/
-
+          name: Packages
+          path: dist
       - name: Publish package
         uses: pypa/[email protected]
         with: