v8/tools/gcmole/parallel.py
Vadim Gorbachev (bmsdave) 7315d7b3d7 Preparing v8 to use with python3 /tools
There are now less that 400 days until the end of life
of Python 2(aka _legacy_ Python) https://pythonclock.org/ .
The code compatibility check for python2 and python3
used the following tools: futurize, flake8
You can see the reports here: https://travis-ci.com/bmsdave/v8/builds

This CL was uploaded by git cl split.

Bug: v8:8594
Change-Id: I661c52a70527e8ddde841fee6d4dcba282b4a938
Reviewed-on: https://chromium-review.googlesource.com/c/1470123
Commit-Queue: Sergiy Belozorov <sergiyb@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59675}
2019-02-19 09:12:07 +00:00

48 lines
1.4 KiB
Python
Executable File

#!/usr/bin/env python
# Copyright 2015 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
This script calls the first argument for each of the following arguments in
parallel. E.g.
parallel.py "clang --opt" file1 file2
calls
clang --opt file1
clang --opt file2
The output (stdout and stderr) is concatenated sequentially in the form:
______________ file1
<output of clang --opt file1>
______________ finish <exit code of clang --opt file1> ______________
______________ file2
<output of clang --opt file2>
______________ finish <exit code of clang --opt file2> ______________
"""
# for py2/py3 compatibility
from __future__ import print_function
import itertools
import multiprocessing
import subprocess
import sys
def invoke(cmdline):
try:
return (subprocess.check_output(
cmdline, shell=True, stderr=subprocess.STDOUT), 0)
except subprocess.CalledProcessError as e:
return (e.output, e.returncode)
if __name__ == '__main__':
assert len(sys.argv) > 2
processes = multiprocessing.cpu_count()
pool = multiprocessing.Pool(processes=processes)
cmdlines = ["%s %s" % (sys.argv[1], filename) for filename in sys.argv[2:]]
for filename, result in itertools.izip(
sys.argv[2:], pool.imap(invoke, cmdlines)):
print("______________ %s" % filename)
print(result[0])
print("______________ finish %d ______________" % result[1])