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Ancestry-based tag selection skips stable tags that live only on older release branches. Signed-off-by: paomian <xpaomian@gmail.com>
92 lines
3.0 KiB
Python
92 lines
3.0 KiB
Python
#!/usr/bin/env python3
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# Copyright 2023 Greptime Team
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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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"""Pick the query-regression baseline tag for a release.
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Compatibility tests do not use this tag. They read ``tests/compatibility/ci.toml``.
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Release branches diverge, so a tag on ``release/v1.3`` is not a descendant of
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``v1.2.1``. Ancestry (``git tag --merged``) therefore skips the real previous
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release. Compare version numbers instead: the baseline is the greatest
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``vX.Y.Z`` tag whose version is strictly older than the release being built.
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Prerelease and nightly tags are not baselines.
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"""
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from __future__ import annotations
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import argparse
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import re
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import sys
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STABLE_TAG = re.compile(r"^v(\d+)\.(\d+)\.(\d+)$")
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RELEASE_VERSION = re.compile(r"^v(\d+)\.(\d+)\.(\d+)(?:-.+)?$")
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def _triple(match: re.Match[str]) -> tuple[int, int, int]:
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return int(match.group(1)), int(match.group(2)), int(match.group(3))
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def release_version(version: str) -> tuple[int, int, int]:
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match = RELEASE_VERSION.fullmatch(version.strip())
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if match is None:
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raise ValueError(f"not a release version: {version}")
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return _triple(match)
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def previous_stable_tag(version: str, tags: list[str]) -> str | None:
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"""Return the newest stable tag older than ``version``, or None."""
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current = release_version(version)
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best: tuple[int, int, int] | None = None
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best_tag: str | None = None
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for raw in tags:
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tag = raw.strip()
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if tag.endswith("^{}"):
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tag = tag[: -len("^{}")]
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match = STABLE_TAG.fullmatch(tag)
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if match is None:
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continue
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triple = _triple(match)
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if triple < current and (best is None or triple > best):
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best = triple
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best_tag = tag
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return best_tag
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def main(argv: list[str] | None = None) -> int:
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("--version", required=True, help="Release version, e.g. v1.3.0-beta.2")
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parser.add_argument(
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"tags",
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nargs="*",
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help="Candidate tags. Read stdin when omitted.",
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)
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args = parser.parse_args(argv)
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tags = list(args.tags)
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if not tags and not sys.stdin.isatty():
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tags = sys.stdin.read().splitlines()
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try:
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tag = previous_stable_tag(args.version, tags)
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except ValueError as exc:
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print(exc, file=sys.stderr)
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return 1
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if tag is None:
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return 0
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print(tag)
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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