Minor Python style clean-up
[chromium-blink-merge.git] / tools / valgrind / browser_wrapper_win.py
blob0023ca7dfb73d3157e43544e0d4871d0753d2f0a
1 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
5 import glob
6 import os
7 import re
8 import sys
9 import subprocess
11 # TODO(timurrrr): we may use it on POSIX too to avoid code duplication once we
12 # support layout_tests, remove Dr. Memory specific code and verify it works
13 # on a "clean" Mac.
15 testcase_name = None
16 for arg in sys.argv:
17 m = re.match("\-\-gtest_filter=(.*)", arg)
18 if m:
19 assert testcase_name is None
20 testcase_name = m.groups()[0]
22 # arg #0 is the path to this python script
23 cmd_to_run = sys.argv[1:]
25 # TODO(timurrrr): this is Dr. Memory-specific
26 # Usually, we pass "-logdir" "foo\bar\spam path" args to Dr. Memory.
27 # To group reports per UI test, we want to put the reports for each test into a
28 # separate directory. This code can be simplified when we have
29 # https://github.com/DynamoRIO/drmemory/issues/684 fixed.
30 logdir_idx = cmd_to_run.index("-logdir")
31 old_logdir = cmd_to_run[logdir_idx + 1]
33 wrapper_pid = str(os.getpid())
35 # On Windows, there is a chance of PID collision. We avoid it by appending the
36 # number of entries in the logdir at the end of wrapper_pid.
37 # This number is monotonic and we can't have two simultaneously running wrappers
38 # with the same PID.
39 wrapper_pid += "_%d" % len(glob.glob(old_logdir + "\\*"))
41 cmd_to_run[logdir_idx + 1] += "\\testcase.%s.logs" % wrapper_pid
42 os.makedirs(cmd_to_run[logdir_idx + 1])
44 if testcase_name:
45 f = open(old_logdir + "\\testcase.%s.name" % wrapper_pid, "w")
46 print >>f, testcase_name
47 f.close()
49 exit(subprocess.call(cmd_to_run))