[ci] Run limited checks on PR, full tests on merge

.github/workflows/checks.yml

@@ -0,0 +1,50 @@
+name: checks
+
+on:
+  pull_request:
+    branches:
+      - main
+
+concurrency:
+  group: check-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  check:
+    name: Check with ${{ matrix.py }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        py:
+          - "3.10"
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+    steps:
+      - uses: dorny/paths-filter@v2
+        id: filter
+        with:
+          filters: |
+            changed:
+              - 'pyproject.toml'
+              - 'src/**'
+              - 'tests/**'
+      - uses: actions/checkout@v4
+        if: steps.filter.outputs.changed == 'true'
+        with:
+          fetch-depth: 0
+      - name: Set up Python ${{ matrix.py }}
+        if: steps.filter.outputs.changed == 'true'
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.py }}
+      - name: Install package
+        if: steps.filter.outputs.changed == 'true'
+        run: |
+          pip install --upgrade pip
+          python -m pip install .[all]
+      - name: Run test suite
+        if: steps.filter.outputs.changed == 'true'
+        run: pytest tests

.github/workflows/tests.yml

@@ -4,12 +4,11 @@ on:
   push:
     branches:
       - main
-  pull_request:
   schedule: 
     - cron: "0 8 * * */2"
 
 concurrency:
-  group: check-${{ github.ref }}
+  group: test-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:
@@ -40,4 +39,4 @@ jobs:
           pip install --upgrade pip
           python -m pip install .[all]
       - name: Run test suite
-        run: pytest tests
+        run: pytest tests