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#!/usr/bin/env python3
#
# Copyright (c) 2022 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""
Find dead Python code.
"""
from subprocess import check_output, STDOUT, CalledProcessError
FILES_ARGS = ['git', 'ls-files', '--', '*.py']
def check_vulture_install():
try:
check_output(["vulture", "--version"])
except FileNotFoundError:
print("Skipping Python dead code linting since vulture is not installed. Install by running \"pip3 install vulture\"")
exit(0)
def main():
check_vulture_install()
files = check_output(FILES_ARGS).decode("utf-8").splitlines()
# --min-confidence 100 will only report code that is guaranteed to be unused within the analyzed files.
# Any value below 100 introduces the risk of false positives, which would create an unacceptable maintenance burden.
vulture_args = ['vulture', '--min-confidence=100'] + files
try:
check_output(vulture_args, stderr=STDOUT)
except CalledProcessError as e:
print(e.output.decode("utf-8"), end="")
print("Python dead code detection found some issues")
exit(1)
if __name__ == "__main__":
main()
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