48 lines
1.4 KiB
Python
48 lines
1.4 KiB
Python
'''
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lint_argparse_returns
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=====================
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'''
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import ast
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import sys
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from voussoirkit import pathclass
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from voussoirkit import vlogging
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log = vlogging.getLogger(__name__, 'lint_argparse_returns')
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@vlogging.main_decorator
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def main(argv):
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return_status = 0
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patterns = argv[:]
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if patterns:
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files = pathclass.glob_many(patterns, files=True)
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else:
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files = pathclass.glob('*.py', files=True)
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for file in files:
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no_py = file.replace_extension('').basename
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text = file.open('r', encoding='utf-8').read()
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try:
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tree = ast.parse(text)
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except Exception:
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log.error('%s failed to parse.', file.absolute_path)
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return_status = 1
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continue
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functions = [f for f in tree.body if isinstance(f, ast.FunctionDef)]
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functions = [f for f in functions if f.name.endswith('_argparse') or f.name == 'main']
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for function in functions:
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returns = [node for node in ast.walk(function) if isinstance(node, ast.Return)]
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if not returns:
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log.warning('%s.%s has no return.', no_py, function.name)
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return_status = 1
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for ret in returns:
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source = ast.get_source_segment(text, ret.value)
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log.info('%s.%s returns %s.', no_py, function.name, source)
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return return_status
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if __name__ == '__main__':
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raise SystemExit(main(sys.argv[1:]))
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