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dosbox-staging/scripts/count-clang-bugs.py
2020-03-11 10:38:10 +01:00

111 lines
3.4 KiB
Python
Executable file

#!/usr/bin/python3
# Copyright (C) 2019-2020 Patryk Obara <patryk.obara@gmail.com>
# SPDX-License-Identifier: GPL-2.0-or-later
"""
This script prints a summary snippet of information out of reports
created by scan-build or analyze-build for Clang's static code
analysis.
It returns success to the shell if the number or bugs encountered
is less than or equal to the desired maximum bugs. See --help
for a description of how to set the maximum.
If the count exceeds the maximum then the script will return a
status of 1 (failure), otherwise the script returns 0 (success).
"""
# This script depends on BeautifulSoup module, if you're distribution is
# missing it, you can use pipenv to install it for virtualenv spanning only
# this repo: pipenv install beautifulsoup4 html5lib
# pylint: disable=invalid-name
# pylint: disable=missing-docstring
import os
import argparse
import sys
from bs4 import BeautifulSoup
def summary_values(summary_table):
if not summary_table:
return
for row in summary_table.find_all('tr'):
description = row.find('td', 'SUMM_DESC')
value = row.find('td', 'Q')
if description is None or value is None:
continue
yield description.get_text(), int(value.get_text())
def read_soup(index_html):
with open(index_html) as index:
soup = BeautifulSoup(index, 'html5lib')
tables = soup.find_all('table')
summary = tables[1]
return dict(summary_values(summary))
def find_longest_name_length(names):
return max(len(x) for x in names)
def print_summary(issues):
summary = list(issues.items())
size = find_longest_name_length(issues.keys()) + 1
for warning, count in sorted(summary, key=lambda x: -x[1]):
print(' {text:{field_size}s}: {count}'.format(
text=warning, count=count, field_size=size))
print()
def to_int(value):
return int(value) if value is not None else None
def parse_args():
parser = argparse.ArgumentParser(
formatter_class=argparse.RawTextHelpFormatter, description=__doc__)
parser.add_argument(
'report',
metavar='REPORT',
help=("Path to the HTML report file"))
max_bugs = to_int(os.getenv('MAX_BUGS', None))
parser.add_argument(
'-m', '--max-bugs',
type=int,
required=not isinstance(max_bugs, int),
default=max_bugs,
help='Defines the maximum number of bugs permitted to exist\n'
'in the report before returning a failure to the shell.\n'
'If not provided, the script will attempt to read it from\n'
'the MAX_BUGS environment variable, which is currently\n'
'set to: {}. If a maximum of -1 is set then success is\n'
'always returned to the shell.\n\n'.format(str(max_bugs)))
return parser.parse_args()
def main():
rcode = 0
args = parse_args()
bug_types = read_soup(args.report)
total = bug_types.pop('All Bugs')
if bug_types:
print("Bugs grouped by type:\n")
print_summary(bug_types)
print('Total: {} bugs'.format(total), end='')
if args.max_bugs >= 0:
print(' (out of {} allowed)\n'.format(args.max_bugs))
if total > args.max_bugs:
print('Error: upper limit of allowed bugs is', args.max_bugs)
rcode = 1
else:
print('\n')
return rcode
if __name__ == '__main__':
sys.exit(main())