devstack/tools/outfilter.py
Dean Troyer dc97cb71e8 Mostly docs cleanups
Fix documentation build errors and RST formatting

Change-Id: Id93153400c5b069dd9d772381558c7085f64c207
2015-03-28 14:35:12 -05:00

88 lines
2.6 KiB
Python
Executable File

#!/usr/bin/env python
#
# Copyright 2014 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# This is an output filter to filter and timestamp the logs from Grenade and
# DevStack. Largely our awk filters got beyond the complexity level which were
# sustainable, so this provides us much more control in a single place.
#
# The overhead of running python should be less than execing `date` a million
# times during a run.
import argparse
import datetime
import re
import sys
IGNORE_LINES = re.compile('(set \+o|xtrace)')
HAS_DATE = re.compile('^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}.\d{3} \|')
def get_options():
parser = argparse.ArgumentParser(
description='Filter output by DevStack and friends')
parser.add_argument('-o', '--outfile',
help='Output file for content',
default=None)
parser.add_argument('-v', '--verbose', action='store_true',
default=False)
return parser.parse_args()
def skip_line(line):
"""Should we skip this line."""
return IGNORE_LINES.search(line) is not None
def main():
opts = get_options()
outfile = None
if opts.outfile:
outfile = open(opts.outfile, 'a', 0)
# Otherwise fileinput reprocess args as files
sys.argv = []
while True:
line = sys.stdin.readline()
if not line:
return 0
# put skip lines here
if skip_line(line):
continue
# This prevents us from nesting date lines, because
# we'd like to pull this in directly in Grenade and not double
# up on DevStack lines
if HAS_DATE.search(line) is None:
now = datetime.datetime.utcnow()
line = ("%s | %s" % (
now.strftime("%Y-%m-%d %H:%M:%S.%f")[:-3],
line))
if opts.verbose:
sys.stdout.write(line)
sys.stdout.flush()
if outfile:
outfile.write(line)
outfile.flush()
if __name__ == '__main__':
try:
sys.exit(main())
except KeyboardInterrupt:
sys.exit(1)