Test suite: add a -d option to the run_tests script.

This causes summary lines (when used with -s) to be pretty printed and
include the test description.  This is the 4th line of the test output
- that is, immediately after the header.

Signed-off-by: Martin Schwenke <martin@meltin.net>

(This used to be ctdb commit 0e5cc2a58b0d38e10a2ef9e81dc887c20f3fbdcb)

ctdb/tests/scripts/run_tests

@@ -18,8 +18,9 @@ EOF
 ######################################################################
 
 with_summary=false
+with_desc=false
 
-temp=$(getopt -n "$prog" -o "xhs" -l help -- "$@")
+temp=$(getopt -n "$prog" -o "xdhs" -l help -- "$@")
 
 [ $? != 0 ] && usage
 
@@ -28,6 +29,7 @@ eval set -- "$temp"
 while true ; do
     case "$1" in
 	-x) set -x; shift ;;
+	-d) with_desc=true ; shift ;;  # 4th line of output is description
 	-s) with_summary=true ; shift ;;
 	--) shift ; break ;;
 	*) usage ;;
@@ -43,18 +45,31 @@ summary=""
 rows=$(if tty -s ; then stty size ; else echo x 80 ; fi | sed -e 's@.* @@' -e 's@^0$@80@')
 ww=$((rows - 7))
 
+tf=$(mktemp)
+
+set -o pipefail
+
 for f; do
     [ -x $f ] || fail "test \"$f\" is not executable"
     tests_total=$(($tests_total + 1))
-    if ctdb_test_run "$f" ; then
+    ctdb_test_run "$f" | tee "$tf"
+    status=$?
+    if [ $status -eq 0 ] ; then
 	tests_passed=$(($tests_passed + 1))
 	t="PASSED"
     else
 	t="FAILED"
     fi
+    if $with_desc ; then
+	f="${f#./}" ; f="${f%%[./]*}"
+	desc=$(tail -n +4 $tf | head -n 1)
+	f="${f} ${desc}"
+    fi
     summary=$(printf "%s\n%-${ww}s%s" "$summary" "$f" "$t")
 done
 
+rm -f "$tf"
+
 if $with_summary ; then
     echo "$summary"
     echo