From 21d25d64f7e7f048b2d2a0313ef9ab83cdca942b Mon Sep 17 00:00:00 2001
From: Michal Sojka <sojkam1@fel.cvut.cz>
Date: Sat, 24 Sep 2011 00:24:06 +0200
Subject: [PATCH] Allow rerunning only the necessary experiments

i.e. those that were not run yet or that changed
---
 gw-tests/Makefile | 2 +-
 gw-tests/lib.sh   | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/gw-tests/Makefile b/gw-tests/Makefile
index 520bc6c..580d3ad 100644
--- a/gw-tests/Makefile
+++ b/gw-tests/Makefile
@@ -8,7 +8,7 @@ T:=$(filter-out filter%,$(T)) $(filter filter%,$(T))
 all: $(T:%=run-%) html
 	@echo "Run 'make plot' to generate graphs"
 
-TEST_FLAGS = -P -t all -l all
+TEST_FLAGS = -P -t all -l all $(if $(UPDATE),-u)
 
 $(T:%=run-%):run-%:
 	./$* $(TEST_FLAGS)
diff --git a/gw-tests/lib.sh b/gw-tests/lib.sh
index 8cfcf26..75fb899 100644
--- a/gw-tests/lib.sh
+++ b/gw-tests/lib.sh
@@ -25,6 +25,7 @@ while [ $# -gt 0 ]; do
 		*) error "Unknown load specification: $2";;
 	    esac;
 	    shift 2;;
+	-u) OPT_UPDATE=1; shift;;
     esac
 done
 
@@ -112,6 +113,7 @@ kill_load() {
 }
 
 _measure() {
+    if [[ "$OPT_UPDATE" && -f plot.sh && ( plot.sh -nt $test.sh ) ]]; then echo "skiping: up-to-date"; return; fi
     # Remove data from the last measurement
     rm -rf *
     # Kill load generators left possibly from the past runs
-- 
2.39.2