t/perf/aggregate.perl: tolerate leading spaces

When using `test_size` with `wc -c`, users on certain platforms can run
into issues when `wc` emits leading space characters in its output,
which confuses get_times.

Callers could switch to use test_file_size instead of `wc -c` (the
former never prints leading space characters, so will always work with
test_size regardless of platform), but this is an easy enough spot to
miss that we should teach get_times to be more tolerant of the input it
accepts.

Teach get_times to do just that by stripping any leading space
characters.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/perf/aggregate.perl b/t/perf/aggregate.perl
index 82c0df45533b2710d358bec3c0bfdc2f86181ca6..575d2000cc168426bea205b9ee5dc31b667ad935 100755 (executable)
--- a/t/perf/aggregate.perl
+++ b/t/perf/aggregate.perl
@@ -17,8 +17,8 @@ sub get_times {
                my $rt = ((defined $1 ? $1 : 0.0)*60+$2)*60+$3;
                return ($rt, $4, $5);
        # size
-       } elsif ($line =~ /^\d+$/) {
-               return $&;
+       } elsif ($line =~ /^\s*(\d+)$/) {
+               return $1;
        } else {
                die "bad input line: $line";
        }