libvirt/scripts/coverage-report.pl

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Perl
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#!/usr/bin/perl
#
# Copyright (C) 2006-2007 Daniel P. Berrange
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Author: Daniel P. Berrange <berrange@redhat.com>
#
# coverage-report.pl: generate XML coverage summary report
#
# This script takes a listof gcov .cov files as args, and generates
# an XML document summarizing the coverage per function and per
# source file.
use warnings;
use strict;
my %coverage = ( function => {}, file => {} );
my @functionBlackList = (
"__memcpy",
"__memmove",
"__memset",
"__strcat",
"__strcpy",
"__strncpy",
"__strsep",
"__strtok"
);
my %filemap;
my $type;
my $name;
my @functions;
while (<>) {
if (/^Function '(.*)'\s*$/) {
$type = "function";
$name = $1;
$coverage{$type}->{$name} = {};
push @functions, $name;
} elsif (/^File '(.*?)'\s*$/) {
$type = "file";
$name = $1;
$coverage{$type}->{$name} = {};
foreach my $func (@functions) {
$coverage{"function"}->{$func}->{file} = $name;
}
@functions = ();
} elsif (/^Lines executed:(.*)%\s*of\s*(\d+)\s*$/) {
$coverage{$type}->{$name}->{lines} = $2;
$coverage{$type}->{$name}->{linesCoverage} = $1;
} elsif (/^Branches executed:(.*)%\s*of\s*(\d+)\s*$/) {
$coverage{$type}->{$name}->{branches} = $2;
$coverage{$type}->{$name}->{branchesCoverage} = $1;
} elsif (/^Taken at least once:(.*)%\s*of\s*(\d+)\s*$/) {
$coverage{$type}->{$name}->{conds} = $2;
$coverage{$type}->{$name}->{condsCoverage} = $1;
} elsif (/^Calls executed:(.*)%\s*of\s*(\d+)\s*$/) {
$coverage{$type}->{$name}->{calls} = $2;
$coverage{$type}->{$name}->{callsCoverage} = $1;
} elsif (/^No branches$/) {
$coverage{$type}->{$name}->{branches} = 0;
$coverage{$type}->{$name}->{branchesCoverage} = "100.00";
$coverage{$type}->{$name}->{conds} = 0;
$coverage{$type}->{$name}->{condsCoverage} = "100.00";
} elsif (/^No calls$/) {
$coverage{$type}->{$name}->{calls} = 0;
$coverage{$type}->{$name}->{callsCoverage} = "100.00";
} elsif (/^\s*(.*):creating '(.*)'\s*$/) {
$filemap{$1} = $2;
} elsif (/^\s*$/) {
# nada
} else {
warn "unexpected input [$_]\n";
}
}
my %summary;
foreach my $type ("function", "file") {
$summary{$type} = {};
foreach my $m ("lines", "branches", "conds", "calls") {
my $totalGot = 0;
my $totalMiss = 0;
my $count = 0;
foreach my $func (keys %{$coverage{function}}) {
my $blacklisted = 0;
foreach my $blackName (@functionBlackList) {
$blacklisted = 1 if $func =~ /^$blackName/;
}
next if $blacklisted;
$count++;
my $got = $coverage{function}->{$func}->{$m};
$totalGot += $got;
my $miss = $got * $coverage{function}->{$func}->{$m ."Coverage"} / 100;
$totalMiss += $miss;
}
$summary{$type}->{$m} = sprintf("%d", $totalGot);
if ($totalGot == 0) {
$summary{$type}->{$m . "Coverage"} = "100.00";
} else {
$summary{$type}->{$m . "Coverage"} = sprintf("%.2f", $totalMiss / $totalGot * 100);
}
}
}
print "<coverage>\n";
foreach my $type ("function", "file") {
printf "<%ss>\n", $type;
foreach my $name (sort { $a cmp $b } keys %{$coverage{$type}}) {
if ($type eq "file") {
next if $name =~ m,^/usr,;
} else {
my $blacklisted = 0;
foreach my $blackName (@functionBlackList) {
$blacklisted = 1 if $name =~ /^$blackName/;
}
next if $blacklisted;
}
my $rec = $coverage{$type}->{$name};
printf " <entry name=\"%s\" details=\"%s\">\n", $name, ($type eq "file" ? $filemap{$name} : $filemap{$rec->{file}});
printf " <lines count=\"%s\" coverage=\"%s\"/>\n", $rec->{lines}, $rec->{linesCoverage};
if (exists $rec->{branches}) {
printf " <branches count=\"%s\" coverage=\"%s\"/>\n", $rec->{branches}, $rec->{branchesCoverage};
}
if (exists $rec->{conds}) {
printf " <conditions count=\"%s\" coverage=\"%s\"/>\n", $rec->{conds}, $rec->{condsCoverage};
}
if (exists $rec->{calls}) {
printf " <calls count=\"%s\" coverage=\"%s\"/>\n", $rec->{calls}, $rec->{callsCoverage};
}
print " </entry>\n";
}
printf " <summary>\n";
printf " <lines count=\"%s\" coverage=\"%s\"/>\n", $summary{$type}->{lines}, $summary{$type}->{linesCoverage};
printf " <branches count=\"%s\" coverage=\"%s\"/>\n", $summary{$type}->{branches}, $summary{$type}->{branchesCoverage};
printf " <conditions count=\"%s\" coverage=\"%s\"/>\n", $summary{$type}->{conds}, $summary{$type}->{condsCoverage};
printf " <calls count=\"%s\" coverage=\"%s\"/>\n", $summary{$type}->{calls}, $summary{$type}->{callsCoverage};
printf " </summary>\n";
printf "</%ss>\n", $type;
}
print "</coverage>\n";