[Qemu-devel] [PATCH v3 for 3.0 13/18] docker: add --hint to docker.py check

["Alex Bennée" <alex.bennee@linaro.org>]

When a check fails we currently just report why we failed. This is not
totally helpful to people who want to boot-strap a new image. Add a
--hint option which we can pass down to give a bit more information.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 tests/docker/Makefile.include | 3 ++-
 tests/docker/docker.py        | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tests/docker/Makefile.include b/tests/docker/Makefile.include
index ec23620153..c9e412f9d0 100644
--- a/tests/docker/Makefile.include
+++ b/tests/docker/Makefile.include
@@ -73,7 +73,8 @@ docker-binfmt-image-debian-%: $(DOCKER_FILES_DIR)/debian-bootstrap.docker
 			$(if $(EXECUTABLE),--include-executable=$(EXECUTABLE)), \
 			"BUILD","binfmt debian-$* (debootstrapped)"),		\
 		$(call quiet-command,						\
-			$(DOCKER_SCRIPT) check --quiet qemu:debian-$* $<,	\
+			$(DOCKER_SCRIPT) check --quiet qemu:debian-$* $<	\
+			--hint "you will need to build $(EXECUTABLE)",		\
 			"CHECK", "debian-$* exists"))
 
 endif
diff --git a/tests/docker/docker.py b/tests/docker/docker.py
index 2f81c6b13b..523f4b95a2 100755
--- a/tests/docker/docker.py
+++ b/tests/docker/docker.py
@@ -475,6 +475,7 @@ class CheckCommand(SubCommand):
                             default="checksum", help="check type")
         parser.add_argument("--olderthan", default=60, type=int,
                             help="number of minutes")
+        parser.add_argument("--hint", default="", help="hint to user")
 
     def run(self, args, argv):
         tag = args.tag
@@ -487,7 +488,7 @@ class CheckCommand(SubCommand):
 
         info = dkr.inspect_tag(tag)
         if info is None:
-            print("Image does not exist")
+            print("Image does not exist %s" % (args.hint))
             return 1
 
         if args.checktype == "checksum":
-- 
2.17.1