grenade/tools/outfilter.py
Sean Dague 9210dd8c41 provide timestamps in grenade output
this is part of the effort to make grenade summaries actually work
in the gate like we expect, so that the base case can take the
output out of the main console and into summary consoles for
readability.

Instead of duplicating the awk filter from devstack, create a new
python tool for this, which lets us have much greater control and
sanity in filtering out garbage that we don't care about.

Change-Id: I235a725b6ca8a02caddad9f5a1457f6461269d5b
2014-06-16 10:25:57 -04:00

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)