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#!/usr/bin/env python3
#
# striplog -- strip leading lines from logs
#
# striplog -j strips JSON leader sentences.
# striplog with no option strips all leading lines beginning with #
#
# This file is Copyright 2010 by the GPSD project
# SPDX-License-Identifier: BSD-2-clause
#
# This code runs compatibly under Python 2 and 3.x for x >= 2.
# Preserve this property!
from __future__ import absolute_import, print_function, division
import getopt
import sys
secondline = firstline = stripjson = False
stripval = 0
(options, arguments) = getopt.getopt(sys.argv[1:], "12n:j")
for (switch, val) in options:
if (switch == '-1'):
firstline = True
if (switch == '-2'):
secondline = True
if (switch == '-n'):
stripval = int(val)
if (switch == '-j'):
stripjson = True
try:
if firstline:
sys.stdin.readline()
elif secondline:
sys.stdin.readline()
sys.stdin.readline()
elif stripval:
for _dummy in range(stripval):
sys.stdin.readline()
elif stripjson:
while True:
line = sys.stdin.readline()
if ((line.startswith('{"class":"VERSION"') or
line.startswith('{"class":"DEVICE"') or
line.startswith('{"class":"DEVICES"') or
line.startswith('{"class":"WATCH"'))):
continue
else:
break
sys.stdout.write(line)
else:
while True:
line = sys.stdin.readline()
if line[0] != '#':
break
sys.stdout.write(line)
sys.stdout.write(sys.stdin.read())
except KeyboardInterrupt:
pass
# vim: set expandtab shiftwidth=4
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