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Differential D11086

sigpipe-remote: verify the script is IO are unbuffered
ClosedPublic

Authored by marmoute on Jul 12 2021, 12:00 AM.

Details

Reviewers
Alphare
Group Reviewers
hg-reviewers
Commits
rHGd5fc1b59a2df: sigpipe-remote: verify the script is IO are unbuffered
Summary

We don't want to get stuck anywhere by buffers.

Diff Detail

Repository
rHG Mercurial
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Revision Contents
Changeset List

PathPackages
Mtests/testlib/sigpipe-remote.py (5 lines)

Diff 29300

tests/testlib/sigpipe-remote.py

#!/usr/bin/env python3 #!/usr/bin/env python3
from __future__ import print_function from __future__ import print_function
import io
import os import os
import subprocess import subprocess
import sys import sys
import threading import threading
import time import time
# we cannot use mercurial.testing as long as python2 is not dropped as the test will only install the mercurial module for python2 in python2 run # we cannot use mercurial.testing as long as python2 is not dropped as the test will only install the mercurial module for python2 in python2 run
if isinstance(sys.stdout.buffer, io.BufferedWriter):
print('SIGPIPE-HELPER: script need unbuffered output', file=sys.stderr)
sys.exit(255)
DEBUG_FILE = os.environ.get('SIGPIPE_REMOTE_DEBUG_FILE') DEBUG_FILE = os.environ.get('SIGPIPE_REMOTE_DEBUG_FILE')
if DEBUG_FILE is None: if DEBUG_FILE is None:
debug_stream = sys.stderr.buffer debug_stream = sys.stderr.buffer
else: else:
debug_stream = open(DEBUG_FILE, 'bw', buffering=0) debug_stream = open(DEBUG_FILE, 'bw', buffering=0)
SYNCFILE1 = os.environ.get('SYNCFILE1') SYNCFILE1 = os.environ.get('SYNCFILE1')
SYNCFILE2 = os.environ.get('SYNCFILE2') SYNCFILE2 = os.environ.get('SYNCFILE2')