[PATCH 09/11] perf/run: allow skipping some revisions

[Thomas Rast <trast@student.ethz.ch>]

You may want to compare two revisions/dirs A and B, but have already
tested one of them, say A.  './run A B' would re-run the tests for
both, which is very time-consuming.  You could invoke

  ./run B && ./aggregate.perl A B

but that is tedious.

Make it so that a ^ prefix means "aggregate this revision, but do not
test it"; i.e., you can say

  ./run ^A B

to achieve what you want.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
---
 t/perf/aggregate.perl |    1 +
 t/perf/run            |    5 +++++
 2 files changed, 6 insertions(+)

diff --git a/t/perf/aggregate.perl b/t/perf/aggregate.perl
index 4db685d..747f885 100755
--- a/t/perf/aggregate.perl
+++ b/t/perf/aggregate.perl
@@ -65,6 +65,7 @@ sub format_times {
 	my $arg = $ARGV[0];
 	my $dir;
 	last if -f $arg or $arg eq "--";
+	$arg =~ s/^\^// if (! -d $arg);
 	if (! -d $arg) {
 		my $rev = Git::command_oneline(qw(rev-parse --verify), $arg."^{commit}");
 		$dir = "build/".$rev;
diff --git a/t/perf/run b/t/perf/run
index e4f9c22..bc66067 100755
--- a/t/perf/run
+++ b/t/perf/run
@@ -37,6 +37,11 @@ build_git_rev () {
 
 run_dirs_helper () {
 	mydir=${1%/}
+	case "$mydir" in
+		^*)
+			return
+			;;
+	esac
 	shift
 	while test $# -gt 0 -a "$1" != -- -a ! -f "$1"; do
 		shift
-- 
1.7.10.rc0.230.g16d90