mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-25 04:50:04 +00:00
99 lines
2.8 KiB
Python
99 lines
2.8 KiB
Python
#!/usr/bin/env python3
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# Copyright (c) 2023 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# 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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# Args: <CHANGES-file> <tag> <output-file>
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# Updates an output file with changelog from the given CHANGES file and tag.
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# - search for first line matching <tag> in file <CHANGES-file>
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# - search for the next line with a tag
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# - writes all the lines in between those 2 tags into <output-file>
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import errno
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import os
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import os.path
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import re
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import subprocess
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import logging
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import sys
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# Regex to match the SPIR-V version tag.
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# Example of matching tags:
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# - v2020.1
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# - v2020.1-dev
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# - v2020.1.rc1
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VERSION_REGEX = re.compile(r'^(v\d+\.\d+) +[0-9]+-[0-9]+-[0-9]+$')
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def mkdir_p(directory):
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"""Make the directory, and all its ancestors as required. Any of the
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directories are allowed to already exist."""
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if directory == "":
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# We're being asked to make the current directory.
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return
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try:
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os.makedirs(directory)
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except OSError as e:
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if e.errno == errno.EEXIST and os.path.isdir(directory):
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pass
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else:
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raise
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def main():
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FORMAT = '%(asctime)s %(message)s'
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logging.basicConfig(format="[%(asctime)s][%(levelname)-8s] %(message)s", datefmt="%H:%M:%S")
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if len(sys.argv) != 4:
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logging.error("usage: {} <CHANGES-path> <tag> <output-file>".format(sys.argv[0]))
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sys.exit(1)
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changes_path = sys.argv[1]
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start_tag = sys.argv[2]
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output_file_path = sys.argv[3]
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changelog = []
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has_found_start = False
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with open(changes_path, "r") as file:
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for line in file.readlines():
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m = VERSION_REGEX.match(line)
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if m:
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print(m.groups()[0])
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print(start_tag)
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if has_found_start:
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break;
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if start_tag == m.groups()[0]:
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has_found_start = True
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continue
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if has_found_start:
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changelog.append(line)
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if not has_found_start:
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logging.error("No tag matching {} found.".format(start_tag))
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sys.exit(1)
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content = "".join(changelog)
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if os.path.isfile(output_file_path):
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with open(output_file_path, 'r') as f:
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if content == f.read():
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sys.exit(0)
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mkdir_p(os.path.dirname(output_file_path))
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with open(output_file_path, 'w') as f:
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f.write(content)
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sys.exit(0)
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if __name__ == '__main__':
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main()
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