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#!/usr/bin/env python3
#
# Copyright (c) 2018-2022 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""
Check for shellcheck warnings in shell scripts.
"""
import subprocess
import re
import sys
# Disabled warnings:
DISABLED = [
'SC2162', # read without -r will mangle backslashes.
]
def check_shellcheck_install():
try:
subprocess.run(['shellcheck', '--version'], stdout=subprocess.DEVNULL, check=True)
except FileNotFoundError:
print('Skipping shell linting since shellcheck is not installed.')
sys.exit(0)
def get_files(command):
output = subprocess.run(command, stdout=subprocess.PIPE, text=True)
files = output.stdout.split('\n')
# remove whitespace element
files = list(filter(None, files))
return files
def main():
check_shellcheck_install()
# build the `exclude` flag
exclude = '--exclude=' + ','.join(DISABLED)
# build the `sourced files` list
sourced_files_cmd = [
'git',
'grep',
'-El',
r'^# shellcheck shell=',
]
sourced_files = get_files(sourced_files_cmd)
# build the `guix files` list
guix_files_cmd = [
'git',
'grep',
'-El',
r'^#!\/usr\/bin\/env bash',
'--',
'contrib/guix',
'contrib/shell',
]
guix_files = get_files(guix_files_cmd)
# build the other script files list
files_cmd = [
'git',
'ls-files',
'--',
'*.sh',
]
files = get_files(files_cmd)
reg = re.compile(r'src/[leveldb,secp256k1,minisketch]')
def should_exclude(fname: str) -> bool:
return bool(reg.match(fname))
# remove everything that doesn't match this regex
files[:] = [file for file in files if not should_exclude(file)]
# build the `shellcheck` command
shellcheck_cmd = [
'shellcheck',
'--external-sources',
'--check-sourced',
'--source-path=SCRIPTDIR',
]
shellcheck_cmd.append(exclude)
shellcheck_cmd.extend(sourced_files)
shellcheck_cmd.extend(guix_files)
shellcheck_cmd.extend(files)
# run the `shellcheck` command
try:
subprocess.check_call(shellcheck_cmd)
except subprocess.CalledProcessError:
sys.exit(1)
if __name__ == '__main__':
main()
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