1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
#!/usr/bin/env python3
# Build the Debian packages using Docker images.
#
# This script builds the Docker images and then executes them sequentially, each
# one building a Debian package for the targeted operating system. It is
# designed to be a "single command" to produce all the images.
#
# By default, builds for all known distributions, but a list of distributions
# can be passed on the commandline for debugging.
import argparse
import os
import signal
import subprocess
import sys
import threading
from concurrent.futures import ThreadPoolExecutor
DISTS = (
"debian:stretch",
"debian:buster",
"debian:sid",
"ubuntu:xenial",
"ubuntu:bionic",
"ubuntu:cosmic",
"ubuntu:disco",
)
DESC = '''\
Builds .debs for synapse, using a Docker image for the build environment.
By default, builds for all known distributions, but a list of distributions
can be passed on the commandline for debugging.
'''
class Builder(object):
def __init__(self, redirect_stdout=False):
self.redirect_stdout = redirect_stdout
self.active_containers = set()
self._lock = threading.Lock()
self._failed = False
def run_build(self, dist):
"""Build deb for a single distribution"""
if self._failed:
print("not building %s due to earlier failure" % (dist, ))
raise Exception("failed")
try:
self._inner_build(dist)
except Exception as e:
print("build of %s failed: %s" % (dist, e), file=sys.stderr)
self._failed = True
raise
def _inner_build(self, dist):
projdir = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
os.chdir(projdir)
tag = dist.split(":", 1)[1]
# Make the dir where the debs will live.
#
# Note that we deliberately put this outside the source tree, otherwise
# we tend to get source packages which are full of debs. (We could hack
# around that with more magic in the build_debian.sh script, but that
# doesn't solve the problem for natively-run dpkg-buildpakage).
debsdir = os.path.join(projdir, '../debs')
os.makedirs(debsdir, exist_ok=True)
if self.redirect_stdout:
logfile = os.path.join(debsdir, "%s.buildlog" % (tag, ))
print("building %s: directing output to %s" % (dist, logfile))
stdout = open(logfile, "w")
else:
stdout = None
# first build a docker image for the build environment
subprocess.check_call([
"docker", "build",
"--tag", "dh-venv-builder:" + tag,
"--build-arg", "distro=" + dist,
"-f", "docker/Dockerfile-dhvirtualenv",
"docker",
], stdout=stdout, stderr=subprocess.STDOUT)
container_name = "synapse_build_" + tag
with self._lock:
self.active_containers.add(container_name)
# then run the build itself
subprocess.check_call([
"docker", "run",
"--rm",
"--name", container_name,
"--volume=" + projdir + ":/synapse/source:ro",
"--volume=" + debsdir + ":/debs",
"-e", "TARGET_USERID=%i" % (os.getuid(), ),
"-e", "TARGET_GROUPID=%i" % (os.getgid(), ),
"dh-venv-builder:" + tag,
], stdout=stdout, stderr=subprocess.STDOUT)
with self._lock:
self.active_containers.remove(container_name)
if stdout is not None:
stdout.close()
print("Completed build of %s" % (dist, ))
def kill_containers(self):
with self._lock:
active = list(self.active_containers)
for c in active:
print("killing container %s" % (c,))
subprocess.run([
"docker", "kill", c,
], stdout=subprocess.DEVNULL)
with self._lock:
self.active_containers.remove(c)
def run_builds(dists, jobs=1):
builder = Builder(redirect_stdout=(jobs > 1))
def sig(signum, _frame):
print("Caught SIGINT")
builder.kill_containers()
signal.signal(signal.SIGINT, sig)
with ThreadPoolExecutor(max_workers=jobs) as e:
res = e.map(builder.run_build, dists)
# make sure we consume the iterable so that exceptions are raised.
for r in res:
pass
if __name__ == '__main__':
parser = argparse.ArgumentParser(
description=DESC,
)
parser.add_argument(
'-j', '--jobs', type=int, default=1,
help='specify the number of builds to run in parallel',
)
parser.add_argument(
'dist', nargs='*', default=DISTS,
help='a list of distributions to build for. Default: %(default)s',
)
args = parser.parse_args()
run_builds(dists=args.dist, jobs=args.jobs)
|
