mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-23 16:12:01 +00:00
513 lines
19 KiB
Python
513 lines
19 KiB
Python
#!/usr/bin/env python3
|
|
"""
|
|
A plan:
|
|
- TODO: consider receiving GH objects cache from S3, but it's really a few
|
|
of requests to API currently
|
|
- Get all open release PRs (20.10, 21.8, 22.5, etc.)
|
|
- Get all pull-requests between the date of the merge-base for the oldest PR with
|
|
labels pr-must-backport and version-specific v21.8-must-backport, but without
|
|
pr-backported
|
|
- Iterate over gotten PRs:
|
|
- for pr-must-backport:
|
|
- check if all backport-PRs are created. If yes,
|
|
set pr-backported label and finish
|
|
- If not, create either cherrypick PRs or merge cherrypick (in the same
|
|
stage, if mergable) and create backport-PRs
|
|
- If successfull, set pr-backported label on the PR
|
|
|
|
- for version-specific labels:
|
|
- the same, check, cherry-pick, backport, pr-backported
|
|
|
|
Cherry-pick stage:
|
|
- From time to time the cherry-pick fails, if it was done manually. In the
|
|
case we check if it's even needed, and mark the release as done somehow.
|
|
"""
|
|
|
|
import argparse
|
|
import logging
|
|
import os
|
|
from contextlib import contextmanager
|
|
from datetime import date, timedelta
|
|
from subprocess import CalledProcessError
|
|
from typing import List, Optional
|
|
|
|
from env_helper import TEMP_PATH
|
|
from get_robot_token import get_best_robot_token
|
|
from git_helper import git_runner, is_shallow
|
|
from github_helper import (
|
|
GitHub,
|
|
PullRequest,
|
|
PullRequests,
|
|
Repository,
|
|
)
|
|
from ssh import SSHKey
|
|
|
|
|
|
class Labels:
|
|
MUST_BACKPORT = "pr-must-backport"
|
|
BACKPORT = "pr-backport"
|
|
BACKPORTS_CREATED = "pr-backports-created"
|
|
CHERRYPICK = "pr-cherrypick"
|
|
DO_NOT_TEST = "do not test"
|
|
|
|
|
|
class ReleaseBranch:
|
|
CHERRYPICK_DESCRIPTION = """This pull-request is a first step of an automated \
|
|
backporting.
|
|
It contains changes like after calling a local command `git cherry-pick`.
|
|
If you intend to continue backporting this changes, then resolve all conflicts if any.
|
|
Otherwise, if you do not want to backport them, then just close this pull-request.
|
|
|
|
The check results does not matter at this step - you can safely ignore them.
|
|
Also this pull-request will be merged automatically as it reaches the mergeable state, \
|
|
but you always can merge it manually.
|
|
"""
|
|
BACKPORT_DESCRIPTION = """This pull-request is a last step of an automated \
|
|
backporting.
|
|
Treat it as a standard pull-request: look at the checks and resolve conflicts.
|
|
Merge it only if you intend to backport changes to the target branch, otherwise just \
|
|
close it.
|
|
"""
|
|
REMOTE = ""
|
|
|
|
def __init__(self, name: str, pr: PullRequest):
|
|
self.name = name
|
|
self.pr = pr
|
|
self.cherrypick_branch = f"cherrypick/{name}/{pr.merge_commit_sha}"
|
|
self.backport_branch = f"backport/{name}/{pr.number}"
|
|
self.cherrypick_pr = None # type: Optional[PullRequest]
|
|
self.backport_pr = None # type: Optional[PullRequest]
|
|
self._backported = None # type: Optional[bool]
|
|
self.git_prefix = ( # All commits to cherrypick are done as robot-clickhouse
|
|
"git -c user.email=robot-clickhouse@users.noreply.github.com "
|
|
"-c user.name=robot-clickhouse -c commit.gpgsign=false"
|
|
)
|
|
self.pre_check()
|
|
|
|
def pre_check(self):
|
|
branch_updated = git_runner(
|
|
f"git branch -a --contains={self.pr.merge_commit_sha} "
|
|
f"{self.REMOTE}/{self.name}"
|
|
)
|
|
if branch_updated:
|
|
self._backported = True
|
|
|
|
def pop_prs(self, prs: PullRequests) -> None:
|
|
"""the method processes all prs and pops the ReleaseBranch related prs"""
|
|
to_pop = [] # type: List[int]
|
|
for i, pr in enumerate(prs):
|
|
if self.name not in pr.head.ref:
|
|
continue
|
|
if pr.head.ref.startswith(f"cherrypick/{self.name}"):
|
|
self.cherrypick_pr = pr
|
|
to_pop.append(i)
|
|
elif pr.head.ref.startswith(f"backport/{self.name}"):
|
|
self.backport_pr = pr
|
|
to_pop.append(i)
|
|
else:
|
|
logging.error(
|
|
"head ref of PR #%s isn't starting with known suffix",
|
|
pr.number,
|
|
)
|
|
for i in reversed(to_pop):
|
|
# Going from the tail to keep the order and pop greater index first
|
|
prs.pop(i)
|
|
|
|
def process(self, dry_run: bool) -> None:
|
|
if self.backported:
|
|
return
|
|
if not self.cherrypick_pr:
|
|
if dry_run:
|
|
logging.info(
|
|
"DRY RUN: Would create cherrypick PR for #%s", self.pr.number
|
|
)
|
|
return
|
|
self.create_cherrypick()
|
|
if self.backported:
|
|
return
|
|
if self.cherrypick_pr is not None:
|
|
# Try to merge cherrypick instantly
|
|
if self.cherrypick_pr.mergeable and self.cherrypick_pr.state != "closed":
|
|
self.cherrypick_pr.merge()
|
|
# The PR needs update, since PR.merge doesn't update the object
|
|
self.cherrypick_pr.update()
|
|
if self.cherrypick_pr.merged:
|
|
if dry_run:
|
|
logging.info(
|
|
"DRY RUN: Would create backport PR for #%s", self.pr.number
|
|
)
|
|
return
|
|
self.create_backport()
|
|
return
|
|
elif self.cherrypick_pr.state == "closed":
|
|
logging.info(
|
|
"The cherrypick PR #%s for PR #%s is discarded",
|
|
self.cherrypick_pr.number,
|
|
self.pr.number,
|
|
)
|
|
self._backported = True
|
|
return
|
|
logging.info(
|
|
"Cherrypick PR #%s for PR #%s have conflicts and unable to be merged",
|
|
self.cherrypick_pr.number,
|
|
self.pr.number,
|
|
)
|
|
|
|
def create_cherrypick(self):
|
|
# First, create backport branch:
|
|
# Checkout release branch with discarding every change
|
|
git_runner(f"{self.git_prefix} checkout -f {self.name}")
|
|
# Create or reset backport branch
|
|
git_runner(f"{self.git_prefix} checkout -B {self.backport_branch}")
|
|
# Merge all changes from PR's the first parent commit w/o applying anything
|
|
# It will allow to create a merge commit like it would be a cherry-pick
|
|
first_parent = git_runner(f"git rev-parse {self.pr.merge_commit_sha}^1")
|
|
git_runner(f"{self.git_prefix} merge -s ours --no-edit {first_parent}")
|
|
|
|
# Second step, create cherrypick branch
|
|
git_runner(
|
|
f"{self.git_prefix} branch -f "
|
|
f"{self.cherrypick_branch} {self.pr.merge_commit_sha}"
|
|
)
|
|
|
|
# Check if there actually any changes between branches. If no, then no
|
|
# other actions are required. It's possible when changes are backported
|
|
# manually to the release branch already
|
|
try:
|
|
output = git_runner(
|
|
f"{self.git_prefix} merge --no-commit --no-ff {self.cherrypick_branch}"
|
|
)
|
|
# 'up-to-date', 'up to date', who knows what else (╯°v°)╯ ^┻━┻
|
|
if output.startswith("Already up") and output.endswith("date."):
|
|
# The changes are already in the release branch, we are done here
|
|
logging.info(
|
|
"Release branch %s already contain changes from %s",
|
|
self.name,
|
|
self.pr.number,
|
|
)
|
|
self._backported = True
|
|
return
|
|
except CalledProcessError:
|
|
# There are most probably conflicts, they'll be resolved in PR
|
|
git_runner(f"{self.git_prefix} reset --merge")
|
|
else:
|
|
# There are changes to apply, so continue
|
|
git_runner(f"{self.git_prefix} reset --merge")
|
|
|
|
# Push, create the cherrypick PR, lable and assign it
|
|
for branch in [self.cherrypick_branch, self.backport_branch]:
|
|
git_runner(f"{self.git_prefix} push -f {self.REMOTE} {branch}:{branch}")
|
|
|
|
self.cherrypick_pr = self.pr.base.repo.create_pull(
|
|
title=f"Cherry pick #{self.pr.number} to {self.name}: {self.pr.title}",
|
|
body=f"Original pull-request #{self.pr.number}\n\n"
|
|
f"{self.CHERRYPICK_DESCRIPTION}",
|
|
base=self.backport_branch,
|
|
head=self.cherrypick_branch,
|
|
)
|
|
self.cherrypick_pr.add_to_labels(Labels.CHERRYPICK)
|
|
self.cherrypick_pr.add_to_labels(Labels.DO_NOT_TEST)
|
|
self._assign_new_pr(self.cherrypick_pr)
|
|
|
|
def create_backport(self):
|
|
assert self.cherrypick_pr is not None
|
|
# Checkout the backport branch from the remote and make all changes to
|
|
# apply like they are only one cherry-pick commit on top of release
|
|
git_runner(f"{self.git_prefix} checkout -f {self.backport_branch}")
|
|
git_runner(
|
|
f"{self.git_prefix} pull --ff-only {self.REMOTE} {self.backport_branch}"
|
|
)
|
|
merge_base = git_runner(
|
|
f"{self.git_prefix} merge-base "
|
|
f"{self.REMOTE}/{self.name} {self.backport_branch}"
|
|
)
|
|
git_runner(f"{self.git_prefix} reset --soft {merge_base}")
|
|
title = f"Backport #{self.pr.number} to {self.name}: {self.pr.title}"
|
|
git_runner(f"{self.git_prefix} commit -a --allow-empty -F -", input=title)
|
|
|
|
# Push with force, create the backport PR, lable and assign it
|
|
git_runner(
|
|
f"{self.git_prefix} push -f {self.REMOTE} "
|
|
f"{self.backport_branch}:{self.backport_branch}"
|
|
)
|
|
self.backport_pr = self.pr.base.repo.create_pull(
|
|
title=title,
|
|
body=f"Original pull-request #{self.pr.number}\n"
|
|
f"Cherry-pick pull-request #{self.cherrypick_pr.number}\n\n"
|
|
f"{self.BACKPORT_DESCRIPTION}",
|
|
base=self.name,
|
|
head=self.backport_branch,
|
|
)
|
|
self.backport_pr.add_to_labels(Labels.BACKPORT)
|
|
self._assign_new_pr(self.backport_pr)
|
|
|
|
def _assign_new_pr(self, new_pr: PullRequest) -> None:
|
|
"""Assign `new_pr` to author, merger and assignees of an original PR"""
|
|
# It looks there some race when multiple .add_to_assignees are executed,
|
|
# so we'll add all at once
|
|
assignees = [self.pr.user, self.pr.merged_by]
|
|
if self.pr.assignees:
|
|
assignees.extend(self.pr.assignees)
|
|
logging.info(
|
|
"Assing #%s to author and assignees of the original PR: %s",
|
|
new_pr.number,
|
|
", ".join(user.login for user in assignees),
|
|
)
|
|
new_pr.add_to_assignees(*assignees)
|
|
|
|
@property
|
|
def backported(self) -> bool:
|
|
if self._backported is not None:
|
|
return self._backported
|
|
return self.backport_pr is not None
|
|
|
|
def __repr__(self):
|
|
return self.name
|
|
|
|
|
|
class Backport:
|
|
def __init__(self, gh: GitHub, repo: str, dry_run: bool):
|
|
self.gh = gh
|
|
self._repo_name = repo
|
|
self.dry_run = dry_run
|
|
|
|
self._query = f"type:pr repo:{repo}"
|
|
self._remote = ""
|
|
self._repo = None # type: Optional[Repository]
|
|
self.release_prs = [] # type: PullRequests
|
|
self.release_branches = [] # type: List[str]
|
|
self.labels_to_backport = [] # type: List[str]
|
|
self.prs_for_backport = [] # type: PullRequests
|
|
self.error = None # type: Optional[Exception]
|
|
|
|
@property
|
|
def remote(self) -> str:
|
|
if not self._remote:
|
|
# lines of "origin git@github.com:ClickHouse/ClickHouse.git (fetch)"
|
|
remotes = git_runner("git remote -v").split("\n")
|
|
# We need the first word from the first matching result
|
|
self._remote = tuple(
|
|
remote.split(maxsplit=1)[0]
|
|
for remote in remotes
|
|
if f"github.com/{self._repo_name}" in remote # https
|
|
or f"github.com:{self._repo_name}" in remote # ssh
|
|
)[0]
|
|
git_runner(f"git fetch {self._remote}")
|
|
ReleaseBranch.REMOTE = self._remote
|
|
return self._remote
|
|
|
|
def receive_release_prs(self):
|
|
logging.info("Getting release PRs")
|
|
self.release_prs = self.gh.get_pulls_from_search(
|
|
query=f"{self._query} is:open",
|
|
sort="created",
|
|
order="asc",
|
|
label="release",
|
|
)
|
|
self.release_branches = [pr.head.ref for pr in self.release_prs]
|
|
self.labels_to_backport = [
|
|
f"v{branch}-must-backport" for branch in self.release_branches
|
|
]
|
|
logging.info("Active releases: %s", ", ".join(self.release_branches))
|
|
|
|
def receive_prs_for_backport(self):
|
|
# The commit is the oldest open release branch's merge-base
|
|
since_commit = git_runner(
|
|
f"git merge-base {self.remote}/{self.release_branches[0]} "
|
|
f"{self.remote}/{self.default_branch}"
|
|
)
|
|
since_date = date.fromisoformat(
|
|
git_runner.run(f"git log -1 --format=format:%cs {since_commit}")
|
|
)
|
|
# To not have a possible TZ issues
|
|
tomorrow = date.today() + timedelta(days=1)
|
|
logging.info("Receive PRs suppose to be backported")
|
|
self.prs_for_backport = self.gh.get_pulls_from_search(
|
|
query=f"{self._query} -label:{Labels.BACKPORTS_CREATED}",
|
|
label=",".join(self.labels_to_backport + [Labels.MUST_BACKPORT]),
|
|
merged=[since_date, tomorrow],
|
|
)
|
|
logging.info(
|
|
"PRs to be backported:\n %s",
|
|
"\n ".join([pr.html_url for pr in self.prs_for_backport]),
|
|
)
|
|
|
|
def process_backports(self):
|
|
for pr in self.prs_for_backport:
|
|
try:
|
|
self.process_pr(pr)
|
|
except Exception as e:
|
|
logging.error(
|
|
"During processing the PR #%s error occured: %s", pr.number, e
|
|
)
|
|
self.error = e
|
|
|
|
def process_pr(self, pr: PullRequest) -> None:
|
|
pr_labels = [label.name for label in pr.labels]
|
|
if Labels.MUST_BACKPORT in pr_labels:
|
|
branches = [
|
|
ReleaseBranch(br, pr) for br in self.release_branches
|
|
] # type: List[ReleaseBranch]
|
|
else:
|
|
branches = [
|
|
ReleaseBranch(br, pr)
|
|
for br in [
|
|
label.split("-", 1)[0][1:] # v21.8-must-backport
|
|
for label in pr_labels
|
|
if label in self.labels_to_backport
|
|
]
|
|
]
|
|
if not branches:
|
|
# This is definitely some error. There must be at least one branch
|
|
# It also make the whole program exit code non-zero
|
|
self.error = Exception(
|
|
f"There are no branches to backport PR #{pr.number}, logical error"
|
|
)
|
|
raise self.error
|
|
|
|
logging.info(
|
|
" PR #%s is suppose to be backported to %s",
|
|
pr.number,
|
|
", ".join(map(str, branches)),
|
|
)
|
|
# All PRs for cherrypick and backport branches as heads
|
|
query_suffix = " ".join(
|
|
[
|
|
f"head:{branch.backport_branch} head:{branch.cherrypick_branch}"
|
|
for branch in branches
|
|
]
|
|
)
|
|
bp_cp_prs = self.gh.get_pulls_from_search(
|
|
query=f"{self._query} {query_suffix}",
|
|
)
|
|
for br in branches:
|
|
br.pop_prs(bp_cp_prs)
|
|
|
|
if bp_cp_prs:
|
|
# This is definitely some error. All prs must be consumed by
|
|
# branches with ReleaseBranch.pop_prs. It also make the whole
|
|
# program exit code non-zero
|
|
self.error = Exception(
|
|
"The following PRs are not filtered by release branches:\n"
|
|
"\n".join(map(str, bp_cp_prs))
|
|
)
|
|
raise self.error
|
|
|
|
if all(br.backported for br in branches):
|
|
# Let's check if the PR is already backported
|
|
self.mark_pr_backported(pr)
|
|
return
|
|
|
|
for br in branches:
|
|
br.process(self.dry_run)
|
|
|
|
if all(br.backported for br in branches):
|
|
# And check it after the running
|
|
self.mark_pr_backported(pr)
|
|
|
|
def mark_pr_backported(self, pr: PullRequest) -> None:
|
|
if self.dry_run:
|
|
logging.info("DRY RUN: would mark PR #%s as done", pr.number)
|
|
return
|
|
pr.add_to_labels(Labels.BACKPORTS_CREATED)
|
|
logging.info(
|
|
"PR #%s is successfully labeled with `%s`",
|
|
pr.number,
|
|
Labels.BACKPORTS_CREATED,
|
|
)
|
|
|
|
@property
|
|
def repo(self) -> Repository:
|
|
if self._repo is None:
|
|
try:
|
|
self._repo = self.release_prs[0].base.repo
|
|
except IndexError as exc:
|
|
raise Exception(
|
|
"`repo` is available only after the `receive_release_prs`"
|
|
) from exc
|
|
return self._repo
|
|
|
|
@property
|
|
def default_branch(self) -> str:
|
|
return self.repo.default_branch
|
|
|
|
|
|
def parse_args():
|
|
parser = argparse.ArgumentParser("Create cherry-pick and backport PRs")
|
|
parser.add_argument("--token", help="github token, if not set, used from smm")
|
|
parser.add_argument(
|
|
"--repo", default="ClickHouse/ClickHouse", help="repo owner/name"
|
|
)
|
|
parser.add_argument("--dry-run", action="store_true", help="do not create anything")
|
|
parser.add_argument(
|
|
"--debug-helpers",
|
|
action="store_true",
|
|
help="add debug logging for git_helper and github_helper",
|
|
)
|
|
return parser.parse_args()
|
|
|
|
|
|
@contextmanager
|
|
def clear_repo():
|
|
orig_ref = git_runner("git branch --show-current") or git_runner(
|
|
"git rev-parse HEAD"
|
|
)
|
|
try:
|
|
yield
|
|
except (Exception, KeyboardInterrupt):
|
|
git_runner(f"git checkout -f {orig_ref}")
|
|
raise
|
|
else:
|
|
git_runner(f"git checkout -f {orig_ref}")
|
|
|
|
|
|
@contextmanager
|
|
def stash():
|
|
need_stash = bool(git_runner("git diff HEAD"))
|
|
if need_stash:
|
|
git_runner("git stash push --no-keep-index -m 'running cherry_pick.py'")
|
|
try:
|
|
with clear_repo():
|
|
yield
|
|
except (Exception, KeyboardInterrupt):
|
|
if need_stash:
|
|
git_runner("git stash pop")
|
|
raise
|
|
else:
|
|
if need_stash:
|
|
git_runner("git stash pop")
|
|
|
|
|
|
def main():
|
|
if not os.path.exists(TEMP_PATH):
|
|
os.makedirs(TEMP_PATH)
|
|
|
|
args = parse_args()
|
|
if args.debug_helpers:
|
|
logging.getLogger("github_helper").setLevel(logging.DEBUG)
|
|
logging.getLogger("git_helper").setLevel(logging.DEBUG)
|
|
token = args.token or get_best_robot_token()
|
|
|
|
gh = GitHub(token, create_cache_dir=False, per_page=100)
|
|
bp = Backport(gh, args.repo, args.dry_run)
|
|
# https://github.com/python/mypy/issues/3004
|
|
bp.gh.cache_path = f"{TEMP_PATH}/gh_cache" # type: ignore
|
|
bp.receive_release_prs()
|
|
bp.receive_prs_for_backport()
|
|
bp.process_backports()
|
|
if bp.error is not None:
|
|
logging.error("Finished successfully, but errors occured!")
|
|
raise bp.error
|
|
|
|
|
|
if __name__ == "__main__":
|
|
logging.basicConfig(level=logging.INFO)
|
|
|
|
assert not is_shallow()
|
|
with stash():
|
|
if os.getenv("ROBOT_CLICKHOUSE_SSH_KEY", ""):
|
|
with SSHKey("ROBOT_CLICKHOUSE_SSH_KEY"):
|
|
main()
|
|
else:
|
|
main()
|