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#!/usr/bin/env python3
# Copyright (C) 2020 Free Software Foundation, Inc.
#
# This file is part of GCC.
#
# GCC is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GCC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING. If not, write to
# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
#
# The script tries to fix commit message where ChangeLog entries
# can point to .cc renamed files.
import argparse
import os
import subprocess
import tempfile
DESCRIPTION = 'Fix up ChangeLog of the current commit.'
script_folder = os.path.dirname(os.path.abspath(__file__))
verify_script = os.path.join(script_folder,
'gcc-changelog/git_check_commit.py')
def replace_file_in_changelog(lines, filename, fixed):
# consider all componenets of a path: gcc/ipa-icf.cc
while filename:
for i, line in enumerate(lines):
if filename in line:
lines[i] = line.replace(filename, fixed)
return
parts = filename.split('/')
if len(parts) == 1:
return
filename = '/'.join(parts[1:])
fixed = '/'.join(fixed.split('/')[1:])
if __name__ == '__main__':
parser = argparse.ArgumentParser(description=DESCRIPTION)
args = parser.parse_args()
# Update commit message if change for a .cc file was taken
r = subprocess.run(f'{verify_script} HEAD', shell=True, encoding='utf8',
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
if r.returncode != 0:
lines = r.stdout.splitlines()
cmd = 'git show -s --format=%B'
commit_message = subprocess.check_output(cmd, shell=True,
encoding='utf8').strip()
commit_message = commit_message.splitlines()
# Parse the following lines:
# ERR: unchanged file mentioned in a ChangeLog \
# (did you mean "gcc/ipa-icf.cc"?): "gcc/ipa-icf.c"
replaced = 0
for line in lines:
if ('unchanged file mentioned' in line and
'did you mean' in line):
filename = line.split()[-1].strip('"')
fixed = line[line.index('did you mean'):]
fixed = fixed[fixed.index('"') + 1:]
fixed = fixed[:fixed.index('"')]
if filename.count('/') == fixed.count('/'):
replace_file_in_changelog(commit_message, filename, fixed)
replaced += 1
if replaced:
with tempfile.NamedTemporaryFile('w', encoding='utf8',
delete=False) as w:
w.write('\n'.join(commit_message))
w.close()
subprocess.check_output(f'git commit --amend -F {w.name}',
shell=True, encoding='utf8')
os.unlink(w.name)
print(f'Commit message updated: {replaced} file(s) renamed.')
else:
print('Commit message has not been updated.')
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