Mercurial > hg
view tests/testlib/sigpipe-remote.py @ 48946:642e31cb55f0
py3: use class X: instead of class X(object):
The inheritance from object is implied in Python 3. So this should
be equivalent.
This change was generated via an automated search and replace. So there
may have been some accidental changes.
Differential Revision: https://phab.mercurial-scm.org/D12352
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Mon, 21 Feb 2022 13:08:28 -0700 |
parents | 70df51a2c2ce |
children |
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#!/usr/bin/env python3 import io import os import subprocess import sys import time 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') if DEBUG_FILE is None: debug_stream = sys.stderr.buffer else: debug_stream = open(DEBUG_FILE, 'bw', buffering=0) SYNCFILE1 = os.environ.get('SYNCFILE1') SYNCFILE2 = os.environ.get('SYNCFILE2') if SYNCFILE1 is None: print('SIGPIPE-HELPER: missing variable $SYNCFILE1', file=sys.stderr) sys.exit(255) if SYNCFILE2 is None: print('SIGPIPE-HELPER: missing variable $SYNCFILE2', file=sys.stderr) sys.exit(255) def _timeout_factor(): """return the current modification to timeout""" default = int(os.environ.get('HGTEST_TIMEOUT_DEFAULT', 360)) current = int(os.environ.get('HGTEST_TIMEOUT', default)) if current == 0: return 1 return current / float(default) def wait_file(path, timeout=10): timeout *= _timeout_factor() start = time.time() while not os.path.exists(path): if (time.time() - start) > timeout: raise RuntimeError(b"timed out waiting for file: %s" % path) time.sleep(0.01) def write_file(path, content=b''): with open(path, 'wb') as f: f.write(content) # end of mercurial.testing content def sysbytes(s): return s.encode('utf-8') def sysstr(s): return s.decode('latin-1') debug_stream.write(b'SIGPIPE-HELPER: Starting\n') TESTLIB_DIR = os.path.dirname(sys.argv[0]) WAIT_SCRIPT = os.path.join(TESTLIB_DIR, 'wait-on-file') hooks_cmd = '%s 10 %s %s' hooks_cmd %= ( WAIT_SCRIPT, SYNCFILE2, SYNCFILE1, ) try: cmd = ['hg'] cmd += sys.argv[1:] sub = subprocess.Popen( cmd, bufsize=0, close_fds=True, stdin=sys.stdin, stdout=subprocess.PIPE, stderr=subprocess.PIPE, ) basedir = os.path.dirname(sys.argv[0]) worker = os.path.join(basedir, 'sigpipe-worker.py') cmd = [sys.executable, worker] stdout_worker = subprocess.Popen( cmd, bufsize=0, close_fds=True, stdin=sub.stdout, stdout=sys.stdout, stderr=sys.stderr, ) stderr_worker = subprocess.Popen( cmd, bufsize=0, close_fds=True, stdin=sub.stderr, stdout=sys.stderr, stderr=sys.stderr, ) debug_stream.write(b'SIGPIPE-HELPER: Redirection in place\n') os.close(sub.stdout.fileno()) os.close(sub.stderr.fileno()) debug_stream.write(b'SIGPIPE-HELPER: pipes closed in main\n') try: wait_file(sysbytes(SYNCFILE1)) except RuntimeError as exc: msg = sysbytes(str(exc)) debug_stream.write(b'SIGPIPE-HELPER: wait failed: %s\n' % msg) else: debug_stream.write(b'SIGPIPE-HELPER: SYNCFILE1 detected\n') stdout_worker.kill() stderr_worker.kill() stdout_worker.wait(10) stderr_worker.wait(10) debug_stream.write(b'SIGPIPE-HELPER: worker killed\n') debug_stream.write(b'SIGPIPE-HELPER: creating SYNCFILE2\n') write_file(sysbytes(SYNCFILE2)) finally: debug_stream.write(b'SIGPIPE-HELPER: Shutting down\n') if not sys.stdin.closed: sys.stdin.close() try: sub.wait(timeout=30) except subprocess.TimeoutExpired: msg = b'SIGPIPE-HELPER: Server process failed to terminate\n' debug_stream.write(msg) sub.kill() sub.wait() msg = b'SIGPIPE-HELPER: Server process killed\n' else: msg = b'SIGPIPE-HELPER: Server process terminated with status %d\n' msg %= sub.returncode debug_stream.write(msg) debug_stream.write(b'SIGPIPE-HELPER: Shut down\n')