config/run-and-prefix.py
author Gary Katsevman <git@gkatsev.com>
Wed, 06 Mar 2019 12:36:46 +0000
changeset 522293 61c94b97adf176b9db3d5eeab23acdd67c8f993e
parent 467933 43c22d224c0ba4cb4f890a37a5e04d6bb2b80c25
permissions -rw-r--r--
Bug 1531337 [wpt PR 15491] - Remove new lines in the reference for 'white-space: pre' tests, a=testonly Automatic update from web-platform-tests Remove new lines in the reference for 'white-space: pre' tests -- overflow hidden each cue -- Merge pull request #15491 from gkatsev/update-webvtt-white-space-pre-references Remove new lines in the reference for 'white-space: pre' tests -- wpt-commits: 26dcd7d8b72152fdaf4c54a48a6d07c93e579ac2, d0b0e694f77b3fe9509e501f254ce0434f6e7692, fb6ed0e160406ef03834a596d2f217665c7d6d52 wpt-pr: 15491

#!/usr/bin/env python
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# This script runs a process and prefixes its output with.
# Usage: run-and-prefix.py prefix command arg0 argv1...

from __future__ import absolute_import, print_function

import os
import subprocess
import sys

sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0)
sys.stderr = os.fdopen(sys.stderr.fileno(), 'w', 0)

prefix = sys.argv[1]
args = sys.argv[2:]

p = subprocess.Popen(args, bufsize=0,
                     stdout=subprocess.PIPE,
                     stderr=subprocess.STDOUT,
                     stdin=sys.stdin.fileno(),
                     universal_newlines=True)

while True:
    data = p.stdout.readline()

    if data == b'':
        break

    print('%s> %s' % (prefix, data), end=b'')

sys.exit(p.wait())