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@@ -0,0 +1,88 @@
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+ #!/usr/bin/python3
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+ """
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+ Several packages with various Python interpreters *Supplement* tox.
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+ *Supplements* is a reverse dependency to *Recommends*.
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+
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+ See https://lists.fedoraproject.org/archives/list/python-devel@lists.fedoraproject.org/thread/NVVUXSVSPFQOWIGBE2JNI67HEO7R63ZQ/
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+
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+ This script:
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+
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+ 1) figures out all packages in the enabled repositories supplementing tox
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+ 2) ensures there is a venv.sh test for each of them in tests.yml
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+
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+ That way, when we change tox (update, patch, etc.),
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+ we will always test it with all Pythons that supplement it.
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+ """
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+
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+ import shlex
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+ import subprocess
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+ import sys
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+ import yaml
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+
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+
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+ def parse_python_test_arg(command):
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+ tokens = shlex.split(command)
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+ for token in tokens:
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+ if token.startswith('PYTHON='):
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+ return token.removeprefix('PYTHON=')
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+ # only check VERSION if PYTHON was not found
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+ for token in tokens:
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+ if token.startswith('VERSION='):
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+ return 'python' + token.removeprefix('VERSION=')
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+ raise RuntimeError(f'Could not determine the Python version from `{command}`')
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+
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+
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+ # First, construct a set of various Pythons we test, e.g. {python3.10, python3.7, pypy3.6, ...}
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+ tested_pythons = set()
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+ with open('tests.yml') as f:
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+ tests_yml = yaml.safe_load(f)
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+ # this nested structure access is quite fragile,
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+ # but at least it should fail the test if we reach to a wrong place
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+ for test in tests_yml[-1]['roles'][0]['tests']:
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+ for value in test.values():
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+ run = value['run']
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+ if run.endswith('./venv.sh'):
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+ tested_pythons.add(parse_python_test_arg(run))
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+ print('Tested Pythons found in tests.yml:', file=sys.stderr)
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+ for python in sorted(tested_pythons):
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+ print(' ', python, file=sys.stderr)
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+
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+
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+ # Get all packages that supplement tox,
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+ # no repo explicitly specified means we use the enabled repos on the CI system which should be what we want
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+ repoquery_result = subprocess.check_output(['dnf', 'repoquery', '--whatsupplements', 'tox'], text=True)
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+ supplementing_pkgs = set(repoquery_result.splitlines())
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+
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+
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+ # It gets quite tricky, since packages like "pypy" can supplement tox, we get a set of provides for all of them
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+ supplementing_pkgs_provides = {}
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+ for nvra in supplementing_pkgs:
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+ repoquery_result = subprocess.check_output(['dnf', '-q', 'repoquery', '--provides', nvra], text=True)
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+ provides = set(repoquery_result.splitlines())
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+ unversioned_provides = {provide.split(' ')[0] for provide in provides}
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+ supplementing_pkgs_provides[nvra.rsplit('-', 2)[0]] = unversioned_provides
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+
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+
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+ # We use this hack to treat -devel and -libs packages as if they were not such
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+ def normalize_name(pkgname):
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+ for suffix in '-devel', '-libs':
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+ if pkgname.endswith(suffix):
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+ return pkgname.removesuffix(suffix)
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+ return pkgname
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+
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+
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+ # Now, for each package that supplements tox, we check if there is a tested Python that *is* it
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+ exit_code = 0
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+ for pkg, provides in supplementing_pkgs_provides.items():
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+ if normalize_name(pkg) in tested_pythons:
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+ print(f'{pkg} is tested', file=sys.stderr)
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+ continue
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+ for provide in provides:
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+ if normalize_name(provide) in tested_pythons:
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+ print(f'{pkg} is tested (via {provide})', file=sys.stderr)
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+ break
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+ else:
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+ print(f'{pkg} is NOT tested', file=sys.stderr)
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+ exit_code = 1
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+
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+ sys.exit(exit_code)
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