# compare two files
sub compare {
my $file1 = shift;
my $file2 = shift;
return 0 unless (-f $file1);
return 0 unless (-f $file2);
my $fh1 = undef;
my $fh2 = undef;
open($fh1, $file1) || return 0;
open($fh2, $file2) || return 0;
my $res = 1;
my $count = 0;
while (<$fh1>)
{
$count++;
my $comp1 = $_;
# remove newline/carriage return (in case these aren't both Unix)
$comp1 =~ s/\n//;
$comp1 =~ s/\r//;
my $comp2 = <$fh2>;
# check if $fh2 has less lines than $fh1
if (!defined $comp2)
{
print "error - line $count does not exist in $file2\n $file1 : $comp1\n";
close($fh1);
close($fh2);
return 0;
}
# remove newline/carriage return
$comp2 =~ s/\n//;
$comp2 =~ s/\r//;
if ($comp1 ne $comp2)
{
print "error - line $count not equal\n $file1 : $comp1\n $file2 : $comp2\n";
close($fh1);
close($fh2);
return 0;
}
}
close($fh1);
# check if $fh2 has more lines than $fh1
if (defined($comp2 = <$fh2>))
{
$comp2 =~ s/\n//;
$comp2 =~ s/\r//;
print "error - extra line in $file2 : '$comp2'\n";
$res = 0;
}
close($fh2);
return $res;
}
1;