ClickHouse/tests/ci/git_helper.py

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#!/usr/bin/env python
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import argparse
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import os.path as p
import re
import subprocess
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from typing import List, Optional
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# ^ and $ match subline in `multiple\nlines`
# \A and \Z match only start and end of the whole string
RELEASE_BRANCH_REGEXP = r"\A\d+[.]\d+\Z"
TAG_REGEXP = (
r"\Av\d{2}[.][1-9]\d*[.][1-9]\d*[.][1-9]\d*-(testing|prestable|stable|lts)\Z"
)
SHA_REGEXP = r"\A([0-9]|[a-f]){40}\Z"
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CWD = p.dirname(p.realpath(__file__))
TWEAK = 1
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# Py 3.8 removeprefix and removesuffix
def removeprefix(string: str, prefix: str):
if string.startswith(prefix):
return string[len(prefix) :] # noqa: ignore E203, false positive
return string
def removesuffix(string: str, suffix: str):
if string.endswith(suffix):
return string[: -len(suffix)]
return string
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def commit(name: str):
r = re.compile(SHA_REGEXP)
if not r.match(name):
raise argparse.ArgumentTypeError(
"commit hash should contain exactly 40 hex characters"
)
return name
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def release_branch(name: str):
r = re.compile(RELEASE_BRANCH_REGEXP)
if not r.match(name):
raise argparse.ArgumentTypeError("release branch should be as 12.1")
return name
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class Runner:
"""lightweight check_output wrapper with stripping last NEW_LINE"""
def __init__(self, cwd: str = CWD):
self._cwd = cwd
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def run(self, cmd: str, cwd: Optional[str] = None, **kwargs) -> str:
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if cwd is None:
cwd = self.cwd
return subprocess.check_output(
cmd, shell=True, cwd=cwd, encoding="utf-8", **kwargs
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).strip()
@property
def cwd(self) -> str:
return self._cwd
@cwd.setter
def cwd(self, value: str):
# Set _cwd only once, then set it to readonly
if self._cwd != CWD:
return
self._cwd = value
git_runner = Runner()
# Set cwd to abs path of git root
git_runner.cwd = p.relpath(
p.join(git_runner.cwd, git_runner.run("git rev-parse --show-cdup"))
)
def is_shallow() -> bool:
return git_runner.run("git rev-parse --is-shallow-repository") == "true"
def get_tags() -> List[str]:
if is_shallow():
raise RuntimeError("attempt to run on a shallow repository")
return git_runner.run("git tag").split()
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class Git:
"""A small wrapper around subprocess to invoke git commands"""
_tag_pattern = re.compile(TAG_REGEXP)
def __init__(self, ignore_no_tags: bool = False):
self.root = git_runner.cwd
self._ignore_no_tags = ignore_no_tags
self.run = git_runner.run
self.latest_tag = ""
self.new_tag = ""
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self.new_branch = ""
self.branch = ""
self.sha = ""
self.sha_short = ""
self.description = "shallow-checkout"
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self.commits_since_tag = 0
self.update()
def update(self):
"""Is used to refresh all attributes after updates, e.g. checkout or commit"""
self.branch = self.run("git branch --show-current")
self.sha = self.run("git rev-parse HEAD")
self.sha_short = self.sha[:11]
# The following command shows the most recent tag in a graph
# Format should match TAG_REGEXP
if self._ignore_no_tags and is_shallow():
try:
self._update_tags()
except subprocess.CalledProcessError:
pass
return
self._update_tags()
def _update_tags(self):
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self.latest_tag = self.run("git describe --tags --abbrev=0")
# Format should be: {latest_tag}-{commits_since_tag}-g{sha_short}
self.description = self.run("git describe --tags --long")
self.commits_since_tag = int(
self.run(f"git rev-list {self.latest_tag}..HEAD --count")
)
@staticmethod
def check_tag(value: str):
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if value == "":
return
if not Git._tag_pattern.match(value):
raise ValueError(f"last tag {value} doesn't match the pattern")
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@property
def latest_tag(self) -> str:
return self._latest_tag
@latest_tag.setter
def latest_tag(self, value: str):
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self.check_tag(value)
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self._latest_tag = value
@property
def new_tag(self) -> str:
return self._new_tag
@new_tag.setter
def new_tag(self, value: str):
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self.check_tag(value)
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self._new_tag = value
@property
def tweak(self) -> int:
if not self.latest_tag.endswith("-testing"):
# When we are on the tag, we still need to have tweak=1 to not
# break cmake with versions like 12.13.14.0
return self.commits_since_tag or TWEAK
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version = self.latest_tag.split("-", maxsplit=1)[0]
return int(version.split(".")[-1]) + self.commits_since_tag