Add script to bisect test failures with ttcn3 and docker

With this script you can now use docker ttcn3 test results to bisect a
regression and find the offending commit.

Use like this from the osmo-* git repository:
$ git bisect start <bad-rev> <good-rev>
$ git bisect run ~/scm/osmo/docker-playground/osmo-bisect.sh <component-to-test> <testcase>
e.g.:
$ git bisect run ~/scm/osmo/docker-playground/osmo-bisect.sh bsc BSC_Tests.TC_ho_in_fail_no_detect

Change-Id: I11f7e61a9b30d58a0fdfcaf77dde447806bf661f

osmo-bisect.sh

@@ -0,0 +1,53 @@
+#!/bin/sh
+
+# Script to bisect an osmo-* project with the docker ttcn3 images
+# You need the git checkout of the project you wand to test as well as a
+# checkout of the docker-playground repository.
+
+# Use like this from the osmo-* project repository where the regression
+# occurs:
+# $ git bisect start <bad-rev> <good-rev>
+# $ git bisect run ~/scm/osmo/docker-playground/osmo-bisect.sh <component-to-test> <testcase>
+# e.g.:
+# $ git bisect run ~/scm/osmo/docker-playground/osmo-bisect.sh bsc BSC_Tests.TC_ho_in_fail_no_detect
+
+
+DOCKER_PLAYGROUND=$(dirname "$0")
+COMP_UPPER=$(echo "$1" | tr '[:lower:]' '[:upper:]')
+COMP_LOWER=$(echo "$1" | tr '[:upper:]' '[:lower:]')
+TESTCASE=$2
+
+COMMIT=$(git log -1 --format=format:%H)
+
+case $COMP_LOWER in
+	"hnbgw")
+		BRANCH="OSMO_IUH_BRANCH"
+		SUITE="ttcn3-hnbgw-test"
+		;;
+	"bsc"|\
+	"bts"|\
+	"ggsn"|\
+	"hlr"|\
+	"mgw"|\
+	"msc"|\
+	"nitb"|\
+	"pcu"|\
+	"sgsn"|\
+	"sip"|\
+	"stp")
+		BRANCH="OSMO_${COMP_UPPER}_BRANCH"
+		SUITE="ttcn3-${COMP_LOWER}-test"
+		;;
+	*)
+		echo "Unknown repo, please fix the script!"
+		exit 125
+		;;
+esac
+
+export "$BRANCH=$COMMIT"
+
+cd "$DOCKER_PLAYGROUND/$SUITE" || exit 125
+
+echo "Testing for $COMMIT"
+./jenkins.sh | grep -- "====== $TESTCASE pass ======"
+exit $?