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#!/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...
import os
import subprocess
import sys
sys.stdout = os.fdopen(sys.stdout.fileno(), "wb", 0)
sys.stderr = os.fdopen(sys.stderr.fileno(), "wb", 0)
prefix = sys.argv[1].encode("utf-8")
args = sys.argv[2:]
p = subprocess.Popen(
args,
bufsize=0,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
stdin=sys.stdin.fileno(),
close_fds=False,
)
while True:
data = p.stdout.readline()
if data == b"":
break
sys.stdout.write(b"%s> %s" % (prefix, data))
sys.exit(p.wait())
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