[Qemu-block] [PATCH v4 09/10] qemu-iotests: add option to save temp files on error

[Jeff Cody]

Now that ./check takes care of cleaning up after each tests, it
can also selectively not clean up.  Add option to leave all output from
tests intact if that test encountered an error.

Signed-off-by: Jeff Cody <address@hidden>
---
 tests/qemu-iotests/check | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/tests/qemu-iotests/check b/tests/qemu-iotests/check
index d2fb933..7908a9d 100755
--- a/tests/qemu-iotests/check
+++ b/tests/qemu-iotests/check
@@ -125,6 +125,7 @@ sortme=false
 expunge=true
 have_test_arg=false
 cachemode=false
+save_on_err=false
 
 tmp="${TEST_DIR}"/$$
 rm -f $tmp.list $tmp.tmp $tmp.sed
@@ -263,6 +264,8 @@ other options
     -o options          -o options to pass to qemu-img create/convert
     -T                  output timestamps
     -c mode             cache mode
+    -s                  save test scratch directory on test failure
+
 
 testlist options
     -g group[,group...]        include tests from these groups
@@ -435,6 +438,10 @@ testlist options
             xgroup=true
             xpand=false
             ;;
+        -s)
+            save_on_err=true
+            xpand=false
+            ;;
         '[0-9][0-9][0-9] [0-9][0-9][0-9][0-9]')
             echo "No tests?"
             status=1
@@ -852,7 +859,11 @@ do
         _cleanup_protocols
         _cleanup_qemu
         )
-        rm -rf "$TEST_DIR_SEQ"
+
+        if [ "$save_on_err" != "true" ] || [ "$err" != "true" ]
+        then
+            rm -rf "$TEST_DIR_SEQ"
+        fi
 
     fi
 
-- 
2.9.5