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1#!/usr/bin/env python
2#
3# Merge mce serverity coverage file from several test cases. This can
4# be used to check the coverage of several test cases.
5#
6# Copyright (C) 2009, Intel Corp.
7#   Author: Huang Ying <ying.huang@intel.com>
8#
9# This file is released under the GPLv2.
10
11import sys
12
13def die(str):
14    print str
15    sys.exit(-1)
16
17def die_on(cond, str):
18    if cond:
19        die(str)
20
21class SCovLine(object):
22    def __init__(self, l):
23        object.__init__(self)
24        self.parse(l)
25    def parse(self, l):
26        sep = l.find('\t')
27        die_on(sep <= 0, 'input error format error')
28        remain = l[sep:]
29        scnt = l[:sep]
30        count = int(scnt)
31        self.count = count
32        self.remain = remain
33    def merge(self, gcl):
34        self.count = self.count + gcl.count
35    def write(self, of):
36        if self.count == 0:
37            of.write("0")
38        else:
39            of.write("1")
40        of.write(self.remain)
41
42def parse(f):
43    return [SCovLine(l) for l in f]
44
45def merge(gcls1, gcls2):
46    for gcl1, gcl2 in zip(gcls1, gcls2):
47        gcl1.merge(gcl2)
48
49def scov_merge(fns, of):
50    f = file(fns[0])
51    gcls_base = parse(f)
52
53    for fn in fns[1:]:
54        f = file(fn)
55        gcls = parse(f)
56        merge(gcls_base, gcls)
57
58    for gcl in gcls_base:
59        gcl.write(of)
60
61def usage():
62    print 'Usage: %s <severities coverage files>' % (sys.argv[0])
63
64if __name__ == '__main__':
65    if len(sys.argv) <= 1:
66        usage()
67        exit -1
68    scov_merge(sys.argv[1:], sys.stdout)
69