[2/3] tests: Add an option for snapshot (default: off)

Commit Message

Fam Zheng April 4, 2018, 2:52 a.m. UTC

Not using snapshot has the benefit of automatically persisting useful
test harnesses, such as docker images and ccache database. Although it
will lose some cleanness, it is imaginably useful for patchew.

Signed-off-by: Fam Zheng <[e-mail]>
---
 tests/vm/basevm.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Patch

diff --git a/tests/vm/basevm.py b/tests/vm/basevm.py
index 686d88decf..960e13f349 100755
--- a/tests/vm/basevm.py
+++ b/tests/vm/basevm.py
@@ -218,6 +218,8 @@  def parse_args(vm_name):
                       help="build QEMU from source in guest")
     parser.add_option("--interactive", "-I", action="store_true",
                       help="Interactively run command")
+    parser.add_option("--snapshot", "-s", action="store_true",
+                      help="run tests with a snapshot")
     parser.disable_interspersed_args()
     return parser.parse_args()
 
@@ -243,7 +245,10 @@  def main(vmcls):
                    jobs=args.jobs)]
         else:
             cmd = argv
-        vm.boot(args.image + ",snapshot=on")
+        img = args.image
+        if args.snapshot:
+            img += ",snapshot=on"
+        vm.boot(img)
         vm.wait_ssh()
     except Exception as e:
         if isinstance(e, SystemExit) and e.code == 0: