mirror of https://github.com/apache/lucene.git
79 lines
3.0 KiB
Python
79 lines
3.0 KiB
Python
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import re
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import subprocess
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import sys
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import tempfile
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import urllib.request
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'''
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A simple tool to see diffs between main's version of CHANGES.txt entries for
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a given release vs the stable branch's version. It's best to keep these 1)
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identical and 2) matching what changes were actually backported to be honest
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to users and avoid future annoying conflicts on backport.
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'''
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# e.g. python3 -u diff_lucene_changes.py branch_9_9 main 9.9.0
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#
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def get_changes_url(branch_name):
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if os.path.isdir(branch_name):
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url = f'file://{branch_name}/lucene/CHANGES.txt'
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else:
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url = f'https://raw.githubusercontent.com/apache/lucene/{branch_name}/lucene/CHANGES.txt'
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print(f'NOTE: resolving {branch_name} --> {url}')
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return url
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def extract_release_section(changes_txt, release_name):
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return re.search(f'=======+ Lucene {re.escape(release_name)} =======+(.*?)=======+ Lucene .*? =======+$',
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changes_txt.decode('utf-8'), re.MULTILINE | re.DOTALL).group(1).encode('utf-8')
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def main():
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if len(sys.argv) < 3 or len(sys.argv) > 5:
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print('\nUsage: python3 -u dev-tools/scripts/diff_lucene_changes.py <branch1-or-local-clone> <branch2-or-local-clone> <release-name> [diff-commandline-extras]\n')
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print(' e.g.: python3 -u dev-tools/scripts/diff_lucene_changes.py branch_9_9 /l/trunk 9.9.0 "-w"\n')
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sys.exit(1)
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branch1 = sys.argv[1]
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branch2 = sys.argv[2]
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release_name = sys.argv[3]
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if len(sys.argv) > 4:
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diff_cl_extras = [sys.argv[4]]
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else:
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diff_cl_extras = []
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branch1_changes = extract_release_section(urllib.request.urlopen(get_changes_url(branch1)).read(),
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release_name)
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branch2_changes = extract_release_section(urllib.request.urlopen(get_changes_url(branch2)).read(),
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release_name)
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with tempfile.NamedTemporaryFile() as f1, tempfile.NamedTemporaryFile() as f2:
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f1.write(branch1_changes)
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f2.write(branch2_changes)
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command = ['diff'] + diff_cl_extras + [f1.name, f2.name]
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# diff returns non-zero exit status when there are diffs, so don't pass check=True
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print(subprocess.run(command, check=False, capture_output=True).stdout.decode('utf-8'))
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if __name__ == '__main__':
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main()
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