Run a sample build before tests on PRs with this label

.github/workflows/test.yml

@@ -37,10 +37,21 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install -r requirements-dev.txt
+
     - name: Install Visual C++ for Python 2.7
       if: runner.os == 'Windows'
       run: |
         choco install vcpython27 -f -y
+
+    - name: Get PR labels
+      id: pr-labels
+      uses: joerick/pr-labels-action@v1.0.5
+
+    - name: Sample build
+      if: contains(steps.pr-labels.outputs.labels, ' ci-sample-build ')
+      run: |
+        python bin/sample_build.py
+
     - name: Test cibuildwheel
       run: |
         python ./bin/run_tests.py

bin/sample_build.py

@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+
+import os
+import subprocess
+import sys
+import argparse
+import tempfile
+from pathlib import Path
+
+if __name__ == '__main__':
+    # move cwd to the project root
+    os.chdir(Path(__file__).resolve().parents[1])
+
+    parser = argparse.ArgumentParser(description='Runs a sample build')
+    parser.add_argument('PROJECT_PYTHON_PATH', nargs='?', default='test.test_0_basic.basic_project')
+
+    options = parser.parse_args()
+    print(options)
+
+    project_dir = tempfile.mkdtemp()
+    subprocess.run([sys.executable, '-m', 'test.test_projects', options.PROJECT_PYTHON_PATH, project_dir], check=True)
+
+    subprocess.run(['cibuildwheel'], check=True, cwd=project_dir)