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![David Robertson](/assets/img/avatar_default.png)
* Rename scripts-dev to have suffices * Update references to `scripts-dev` * Changelog * These scripts don't pass mypy
218 lines
6.4 KiB
Python
Executable File
218 lines
6.4 KiB
Python
Executable File
#!/usr/bin/env python3
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# Build the Debian packages using Docker images.
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#
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# This script builds the Docker images and then executes them sequentially, each
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# one building a Debian package for the targeted operating system. It is
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# designed to be a "single command" to produce all the images.
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#
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# By default, builds for all known distributions, but a list of distributions
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# can be passed on the commandline for debugging.
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import argparse
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import json
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import os
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import signal
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import subprocess
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import sys
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import threading
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from concurrent.futures import ThreadPoolExecutor
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from typing import Optional, Sequence
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DISTS = (
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"debian:buster", # oldstable: EOL 2022-08
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"debian:bullseye",
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"debian:bookworm",
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"debian:sid",
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"ubuntu:focal", # 20.04 LTS (our EOL forced by Py38 on 2024-10-14)
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"ubuntu:impish", # 21.10 (EOL 2022-07)
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)
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DESC = """\
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Builds .debs for synapse, using a Docker image for the build environment.
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By default, builds for all known distributions, but a list of distributions
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can be passed on the commandline for debugging.
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"""
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projdir = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
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class Builder(object):
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def __init__(
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self, redirect_stdout=False, docker_build_args: Optional[Sequence[str]] = None
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):
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self.redirect_stdout = redirect_stdout
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self._docker_build_args = tuple(docker_build_args or ())
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self.active_containers = set()
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self._lock = threading.Lock()
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self._failed = False
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def run_build(self, dist, skip_tests=False):
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"""Build deb for a single distribution"""
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if self._failed:
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print("not building %s due to earlier failure" % (dist,))
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raise Exception("failed")
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try:
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self._inner_build(dist, skip_tests)
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except Exception as e:
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print("build of %s failed: %s" % (dist, e), file=sys.stderr)
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self._failed = True
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raise
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def _inner_build(self, dist, skip_tests=False):
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tag = dist.split(":", 1)[1]
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# Make the dir where the debs will live.
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#
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# Note that we deliberately put this outside the source tree, otherwise
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# we tend to get source packages which are full of debs. (We could hack
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# around that with more magic in the build_debian.sh script, but that
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# doesn't solve the problem for natively-run dpkg-buildpakage).
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debsdir = os.path.join(projdir, "../debs")
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os.makedirs(debsdir, exist_ok=True)
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if self.redirect_stdout:
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logfile = os.path.join(debsdir, "%s.buildlog" % (tag,))
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print("building %s: directing output to %s" % (dist, logfile))
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stdout = open(logfile, "w")
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else:
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stdout = None
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# first build a docker image for the build environment
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build_args = (
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(
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"docker",
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"build",
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"--tag",
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"dh-venv-builder:" + tag,
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"--build-arg",
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"distro=" + dist,
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"-f",
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"docker/Dockerfile-dhvirtualenv",
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)
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+ self._docker_build_args
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+ ("docker",)
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)
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subprocess.check_call(
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build_args,
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stdout=stdout,
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stderr=subprocess.STDOUT,
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cwd=projdir,
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)
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container_name = "synapse_build_" + tag
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with self._lock:
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self.active_containers.add(container_name)
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# then run the build itself
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subprocess.check_call(
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[
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"docker",
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"run",
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"--rm",
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"--name",
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container_name,
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"--volume=" + projdir + ":/synapse/source:ro",
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"--volume=" + debsdir + ":/debs",
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"-e",
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"TARGET_USERID=%i" % (os.getuid(),),
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"-e",
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"TARGET_GROUPID=%i" % (os.getgid(),),
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"-e",
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"DEB_BUILD_OPTIONS=%s" % ("nocheck" if skip_tests else ""),
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"dh-venv-builder:" + tag,
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],
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stdout=stdout,
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stderr=subprocess.STDOUT,
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)
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with self._lock:
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self.active_containers.remove(container_name)
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if stdout is not None:
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stdout.close()
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print("Completed build of %s" % (dist,))
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def kill_containers(self):
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with self._lock:
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active = list(self.active_containers)
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for c in active:
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print("killing container %s" % (c,))
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subprocess.run(
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[
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"docker",
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"kill",
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c,
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],
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stdout=subprocess.DEVNULL,
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)
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with self._lock:
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self.active_containers.remove(c)
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def run_builds(builder, dists, jobs=1, skip_tests=False):
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def sig(signum, _frame):
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print("Caught SIGINT")
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builder.kill_containers()
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signal.signal(signal.SIGINT, sig)
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with ThreadPoolExecutor(max_workers=jobs) as e:
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res = e.map(lambda dist: builder.run_build(dist, skip_tests), dists)
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# make sure we consume the iterable so that exceptions are raised.
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for _ in res:
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pass
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(
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description=DESC,
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)
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parser.add_argument(
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"-j",
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"--jobs",
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type=int,
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default=1,
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help="specify the number of builds to run in parallel",
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)
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parser.add_argument(
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"--no-check",
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action="store_true",
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help="skip running tests after building",
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)
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parser.add_argument(
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"--docker-build-arg",
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action="append",
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help="specify an argument to pass to docker build",
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)
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parser.add_argument(
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"--show-dists-json",
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action="store_true",
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help="instead of building the packages, just list the dists to build for, as a json array",
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)
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parser.add_argument(
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"dist",
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nargs="*",
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default=DISTS,
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help="a list of distributions to build for. Default: %(default)s",
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)
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args = parser.parse_args()
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if args.show_dists_json:
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print(json.dumps(DISTS))
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else:
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builder = Builder(
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redirect_stdout=(args.jobs > 1), docker_build_args=args.docker_build_arg
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)
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run_builds(
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builder,
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dists=args.dist,
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jobs=args.jobs,
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skip_tests=args.no_check,
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)
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