Check that fuzzing files are not included in the release

.github/workflows/cifuzz.yml

@@ -34,3 +34,9 @@ jobs:
       sarif_file: cifuzz-sarif/results.sarif
       checkout_path: cifuzz-sarif
 
+  check-distribution:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Do not include Apache files in the distribution.
+      run: |
+        src/icalendar/tests/test_create_release.sh

MANIFEST.in

@@ -2,3 +2,4 @@ include *.rst tox.ini
 graft docs
 recursive-include src/icalendar *
 recursive-exclude src/icalendar *.pyc *~
+recursive-exclude src/icalendar/fuzzing *.py *.sh

setup.py

@@ -52,7 +52,7 @@ setuptools.setup(
     author_email='plone-developers@lists.sourceforge.net',
     url='https://github.com/collective/icalendar',
     license='BSD',
-    packages=setuptools.find_namespace_packages('src'),
+    packages=setuptools.find_namespace_packages('src', exclude=["icalendar.fuzzing"]),
     package_dir={'': 'src'},
     include_package_data=True,
     zip_safe=False,

src/icalendar/tests/test_create_release.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+#
+# Create a release file and test it.
+#
+
+set -e
+cd "`dirname \"$0\"`"
+cd "../../.."
+
+python3 setup.py sdist
+archive=`echo dist/icalendar-*.tar.gz`
+
+if ! [ -f "$archive" ]; then
+  echo "ERROR: Cannot find distribution archive '$archive'."
+  exit 1
+fi
+
+if tar -tf "$archive" | grep 'fuzzing/'; then
+  echo "ERROR: Fuzzing files are included in the release."
+  echo "       See https://github.com/collective/icalendar/pull/569"
+  exit 1
+fi
+
+echo "Checks passed."