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comparison tests/testlib/sigpipe-remote.py @ 47617:d5fc1b59a2df

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sigpipe-remote: verify the script is IO are unbuffered We don't want to get stuck anywhere by buffers. Differential Revision: https://phab.mercurial-scm.org/D11086
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Mon, 12 Jul 2021 03:29:21 +0200
parents df6148ca7120
children 27ff81547d35
comparison
equal deleted inserted replaced
47616:df6148ca7120 47617:d5fc1b59a2df
1 #!/usr/bin/env python3 1 #!/usr/bin/env python3
2 from __future__ import print_function 2 from __future__ import print_function
3 3
4 import io
4 import os 5 import os
5 import subprocess 6 import subprocess
6 import sys 7 import sys
7 import threading 8 import threading
8 import time 9 import time
9 10
10 # 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 11 # 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
12
13 if isinstance(sys.stdout.buffer, io.BufferedWriter):
14 print('SIGPIPE-HELPER: script need unbuffered output', file=sys.stderr)
15 sys.exit(255)
11 16
12 DEBUG_FILE = os.environ.get('SIGPIPE_REMOTE_DEBUG_FILE') 17 DEBUG_FILE = os.environ.get('SIGPIPE_REMOTE_DEBUG_FILE')
13 if DEBUG_FILE is None: 18 if DEBUG_FILE is None:
14 debug_stream = sys.stderr.buffer 19 debug_stream = sys.stderr.buffer
15 else: 20 else: