[PATCH v8 3/4] Acceptance tests: add make targets to download images

[Cleber Rosa <crosa@redhat.com>]

The newly introduced "boot linux" tests make use of Linux images that
are larger than usual, and fall into what Avocado calls "vmimages",
and can be referred to by name, version and architecture.

The images can be downloaded automatically during the test. But, to
make for more reliable test results, this introduces a target that
will download the vmimages for the architectures that have been
configured and are available for the currently used distro (Fedora
31).

Signed-off-by: Cleber Rosa <crosa@redhat.com>
---
 tests/Makefile.include | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/tests/Makefile.include b/tests/Makefile.include
index b381387048..78a6f089ff 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -1177,7 +1177,20 @@ $(TESTS_RESULTS_DIR):
 
 check-venv: $(TESTS_VENV_DIR)
 
-check-acceptance: check-venv $(TESTS_RESULTS_DIR)
+FEDORA_31_ARCHES_CANDIDATES=$(patsubst ppc64,ppc64le,$(TARGETS))
+FEDORA_31_ARCHES := x86_64 aarch64 ppc64le s390x
+FEDORA_31_DOWNLOAD=$(filter $(FEDORA_31_ARCHES),$(FEDORA_31_ARCHES_CANDIDATES))
+
+# download one specific Fedora 31 image
+get-vmimage-fedora-31-%: $(check-venv)
+	$(call quiet-command, \
+             $(TESTS_VENV_DIR)/bin/python -m avocado vmimage get \
+             --distro=fedora --distro-version=31 --arch=$*)
+
+# download all vm images, according to defined targets
+get-vmimage: $(patsubst %,get-vmimage-fedora-31-%, $(FEDORA_31_DOWNLOAD))
+
+check-acceptance: check-venv $(TESTS_RESULTS_DIR) get-vmimage
 	$(call quiet-command, \
             $(TESTS_VENV_DIR)/bin/python -m avocado \
             --show=$(AVOCADO_SHOW) run --job-results-dir=$(TESTS_RESULTS_DIR) \
@@ -1188,7 +1201,7 @@ check-acceptance: check-venv $(TESTS_RESULTS_DIR)
 
 # Consolidated targets
 
-.PHONY: check-block check-qapi-schema check-qtest check-unit check check-clean
+.PHONY: check-block check-qapi-schema check-qtest check-unit check check-clean get-vmimage
 check-qapi-schema: check-tests/qapi-schema/frontend check-tests/qapi-schema/doc-good.texi
 check-qtest: $(patsubst %,check-qtest-%, $(QTEST_TARGETS))
 check-block: $(patsubst %,check-%, $(check-block-y))
-- 
2.21.0