include-what-you-use/scrub-logs.py

46 lines
1.1 KiB
Python
Executable File

#!/usr/bin/env python3
##===--- scrub-logs.py - generate README from Wiki sources ----------------===##
#
# The LLVM Compiler Infrastructure
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
##===----------------------------------------------------------------------===##
"""Scrub irrelevant details from IWYU/Clang logs.
When Clang changes upstream, we usually look for differences in the AST to
explain the new behavior. This script makes that easier by scrubbing pointer
values and path prefixes from ast-dump output, so they can be diffed directly.
"""
import re
import sys
import fileinput
def strip_path_prefix(line):
line = re.sub(r'<.*(llvm[\\/]tools[\\/].*):', r'<\1:', line)
return line
def strip_addrs(line):
line = re.sub(r'\b(0x)?[0-9A-Fa-f]{6,16}', '', line)
return line
def main():
for line in fileinput.input():
line = line.strip()
line = strip_addrs(line)
line = strip_path_prefix(line)
print(line)
return 0
if __name__ == '__main__':
sys.exit(main())