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#!/usr/bin/python
# This script removes branch and/or line coverage data for lines that
# contain a particular substring.
#
# In the interest of "fairness" it removes all branch or coverage data
# when a match is found -- not just negative data. It is therefore
# likely that running this script will actually reduce the total number
# of lines and branches that are marked as covered (in absolute terms).
#
# This script intentionally avoids checking for errors. Any exceptions
# will trigger make to fail.
#
# Author: Ryan Lortie <desrt@desrt.ca>
import sys
line_suppress = ['g_assert_not_reached']
branch_suppress = ['g_assert', 'g_return_if_fail', 'g_return_val_if_fail', 'G_DEFINE_TYPE']
def check_suppress(suppressions, source, data):
line, _, rest = data.partition(',')
line = int(line) - 1
assert line < len(source)
for suppression in suppressions:
if suppression in source[line]:
return True
return False
source = []
for line in sys.stdin:
line = line[:-1]
keyword, _, rest = line.partition(':')
# Source file
if keyword == 'SF':
source = file(rest).readlines()
# Branch coverage data
elif keyword == 'BRDA':
if check_suppress(branch_suppress, source, rest):
continue
# Line coverage data
elif keyword == 'DA':
if check_suppress(line_suppress, source, rest):
continue
print line
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