v8/tools/testrunner/local/commands.py
Michael Achenbach eecbdc42a6 [test] Fix swarming shard distribution
The environment variables for swarming shards are leaking into the gtest runs, which read them as well and in turn skip some tests. Now we make sure those environment variables aren't passed to the subprocesses. 

BUG=v8:5956

Change-Id: I9c93b1facc703a10a88e633074977743ccd24eb0
Reviewed-on: https://chromium-review.googlesource.com/441745
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43161}
2017-02-13 15:59:06 +00:00

132 lines
4.5 KiB
Python

# Copyright 2012 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import os
import subprocess
import sys
from threading import Timer
from ..local import utils
from ..objects import output
SEM_INVALID_VALUE = -1
SEM_NOGPFAULTERRORBOX = 0x0002 # Microsoft Platform SDK WinBase.h
def Win32SetErrorMode(mode):
prev_error_mode = SEM_INVALID_VALUE
try:
import ctypes
prev_error_mode = \
ctypes.windll.kernel32.SetErrorMode(mode) #@UndefinedVariable
except ImportError:
pass
return prev_error_mode
def RunProcess(verbose, timeout, args, **rest):
if verbose: print "#", " ".join(args)
popen_args = args
prev_error_mode = SEM_INVALID_VALUE
if utils.IsWindows():
popen_args = subprocess.list2cmdline(args)
# Try to change the error mode to avoid dialogs on fatal errors. Don't
# touch any existing error mode flags by merging the existing error mode.
# See http://blogs.msdn.com/oldnewthing/archive/2004/07/27/198410.aspx.
error_mode = SEM_NOGPFAULTERRORBOX
prev_error_mode = Win32SetErrorMode(error_mode)
Win32SetErrorMode(error_mode | prev_error_mode)
env = os.environ.copy()
# GTest shard information is read by the V8 tests runner. Make sure it
# doesn't leak into the execution of gtests we're wrapping. Those might
# otherwise apply a second level of sharding and as a result skip tests.
env.pop('GTEST_TOTAL_SHARDS', None)
env.pop('GTEST_SHARD_INDEX', None)
try:
process = subprocess.Popen(
args=popen_args,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
env=env,
**rest
)
except Exception as e:
sys.stderr.write("Error executing: %s\n" % popen_args)
raise e
if (utils.IsWindows() and prev_error_mode != SEM_INVALID_VALUE):
Win32SetErrorMode(prev_error_mode)
def kill_process(process, timeout_result):
timeout_result[0] = True
try:
if utils.IsWindows():
if verbose:
print "Attempting to kill process %d" % process.pid
sys.stdout.flush()
tk = subprocess.Popen(
'taskkill /T /F /PID %d' % process.pid,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
)
stdout, stderr = tk.communicate()
if verbose:
print "Taskkill results for %d" % process.pid
print stdout
print stderr
print "Return code: %d" % tk.returncode
sys.stdout.flush()
else:
process.kill()
except OSError:
sys.stderr.write('Error: Process %s already ended.\n' % process.pid)
# Pseudo object to communicate with timer thread.
timeout_result = [False]
timer = Timer(timeout, kill_process, [process, timeout_result])
timer.start()
stdout, stderr = process.communicate()
timer.cancel()
return output.Output(
process.returncode,
timeout_result[0],
stdout.decode('utf-8', 'replace').encode('utf-8'),
stderr.decode('utf-8', 'replace').encode('utf-8'),
process.pid,
)
def Execute(args, verbose=False, timeout=None):
args = [ c for c in args if c != "" ]
return RunProcess(verbose, timeout, args=args)