[PATCH 03/10] tests/docker: add NOFETCH env variable for testing

[Alex Bennée]

Testing non-auto built docker containers (i.e. custom built compilers)
is a bit fiddly as you couldn't continue a build with a previously
locally built container. While you can play games with REGISTRY its
simpler to allow a NOFETCH that will go through the cached build
process when you run the tests.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 tests/docker/Makefile.include | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tests/docker/Makefile.include b/tests/docker/Makefile.include
index 681feae744..fead7d3abe 100644
--- a/tests/docker/Makefile.include
+++ b/tests/docker/Makefile.include
@@ -92,10 +92,10 @@ endif
 docker-image-alpine: NOUSER=1
 
 debian-toolchain-run = \
-       $(if $(NOCACHE),                                                \
+       $(if $(NOCACHE)$(NOFETCH),                                      \
                $(call quiet-command,                                   \
                        $(DOCKER_SCRIPT) build -t qemu/$1 -f $<         \
-                       $(if $V,,--quiet) --no-cache                    \
+                       $(if $V,,--quiet) $(if $(NOCACHE),--no-cache)   \
                        --registry $(DOCKER_REGISTRY) --extra-files     \
                        $(DOCKER_FILES_DIR)/$1.d/build-toolchain.sh,    \
                        "BUILD", $1),                                   \
@@ -177,6 +177,7 @@ docker:
        @echo '    NETWORK=$$BACKEND     Enable virtual network interface with 
$$BACKEND.'
        @echo '    NOUSER=1             Define to disable adding current user 
to containers passwd.'
        @echo '    NOCACHE=1            Ignore cache when build images.'
+       @echo '    NOFETCH=1            Do not fetch from the registry.'
        @echo '    EXECUTABLE=<path>    Include executable in image.'
        @echo '    EXTRA_FILES="<path> [... <path>]"'
        @echo '                         Include extra files in image.'
-- 
2.39.5