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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
#!/usr/bin/env/python
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
import argparse
import gzip
import io
import logging
import os
import sys
import tarfile
import time
from contextlib import contextmanager
from threading import Event, Thread
import requests
from mozbuild.generated_sources import (
get_filename_with_digest,
get_s3_region_and_bucket,
)
from requests.packages.urllib3.util.retry import Retry
from six.moves.queue import Queue
# Arbitrary, should probably measure this.
NUM_WORKER_THREADS = 10
log = logging.getLogger("upload-generated-sources")
log.setLevel(logging.INFO)
@contextmanager
def timed():
"""
Yield a function that provides the elapsed time in seconds since this
function was called.
"""
start = time.time()
def elapsed():
return time.time() - start
yield elapsed
def gzip_compress(data):
"""
Apply gzip compression to `data` and return the result as a `BytesIO`.
"""
b = io.BytesIO()
with gzip.GzipFile(fileobj=b, mode="w") as f:
f.write(data)
b.flush()
b.seek(0)
return b
def upload_worker(queue, event, bucket, session_args):
"""
Get `(name, contents)` entries from `queue` and upload `contents`
to S3 with gzip compression using `name` as the key, prefixed with
the SHA-512 digest of `contents` as a hex string. If an exception occurs,
set `event`.
"""
try:
import boto3
session = boto3.session.Session(**session_args)
s3 = session.client("s3")
while True:
if event.is_set():
# Some other thread hit an exception.
return
(name, contents) = queue.get()
pathname = get_filename_with_digest(name, contents)
compressed = gzip_compress(contents)
extra_args = {
"ContentEncoding": "gzip",
"ContentType": "text/plain",
}
log.info(
'Uploading "{}" ({} bytes)'.format(pathname, len(compressed.getvalue()))
)
with timed() as elapsed:
s3.upload_fileobj(compressed, bucket, pathname, ExtraArgs=extra_args)
log.info(
'Finished uploading "{}" in {:0.3f}s'.format(pathname, elapsed())
)
queue.task_done()
except Exception:
log.exception("Thread encountered exception:")
event.set()
def do_work(artifact, region, bucket):
session_args = {"region_name": region}
session = requests.Session()
retry = Retry(total=5, backoff_factor=0.1, status_forcelist=[500, 502, 503, 504])
http_adapter = requests.adapters.HTTPAdapter(max_retries=retry)
session.mount("https://", http_adapter)
session.mount("http://", http_adapter)
if "TASK_ID" in os.environ:
level = os.environ.get("MOZ_SCM_LEVEL", "1")
secrets_url = "http://taskcluster/secrets/v1/secret/project/releng/gecko/build/level-{}/gecko-generated-sources-upload".format( # noqa
level
)
log.info(
'Using AWS credentials from the secrets service: "{}"'.format(secrets_url)
)
res = session.get(secrets_url)
res.raise_for_status()
secret = res.json()
session_args.update(
aws_access_key_id=secret["secret"]["AWS_ACCESS_KEY_ID"],
aws_secret_access_key=secret["secret"]["AWS_SECRET_ACCESS_KEY"],
)
else:
log.info("Trying to use your AWS credentials..")
# First, fetch the artifact containing the sources.
log.info('Fetching generated sources artifact: "{}"'.format(artifact))
with timed() as elapsed:
res = session.get(artifact)
log.info(
"Fetch HTTP status: {}, {} bytes downloaded in {:0.3f}s".format(
res.status_code, len(res.content), elapsed()
)
)
res.raise_for_status()
# Create a queue and worker threads for uploading.
q = Queue()
event = Event()
log.info("Creating {} worker threads".format(NUM_WORKER_THREADS))
for i in range(NUM_WORKER_THREADS):
t = Thread(target=upload_worker, args=(q, event, bucket, session_args))
t.daemon = True
t.start()
with tarfile.open(fileobj=io.BytesIO(res.content), mode="r|gz") as tar:
# Next, process each file.
for entry in tar:
if event.is_set():
break
log.info('Queueing "{}"'.format(entry.name))
q.put((entry.name, tar.extractfile(entry).read()))
# Wait until all uploads are finished.
# We don't use q.join() here because we want to also monitor event.
while q.unfinished_tasks:
if event.wait(0.1):
log.error("Worker thread encountered exception, exiting...")
break
def main(argv):
logging.basicConfig(format="%(levelname)s - %(threadName)s - %(message)s")
parser = argparse.ArgumentParser(
description="Upload generated source files in ARTIFACT to BUCKET in S3."
)
parser.add_argument("artifact", help="generated-sources artifact from build task")
args = parser.parse_args(argv)
region, bucket = get_s3_region_and_bucket()
with timed() as elapsed:
do_work(region=region, bucket=bucket, artifact=args.artifact)
log.info("Finished in {:.03f}s".format(elapsed()))
return 0
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))
|
