Re: [PATCH v3 01/10] tests/vm: Add validation of target

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

Robert Foley <robert.foley@linaro.org> writes:

> This validation is now useful since some targets
> may not be valid if their dependencies are not installed.
> Instead of allowing the scripts to fail with missing dependencies
> we will fail earlier with a helpful error message.
>
> Signed-off-by: Robert Foley <robert.foley@linaro.org>
> ---
>  tests/vm/Makefile.include | 16 +++++++++++++++-
>  1 file changed, 15 insertions(+), 1 deletion(-)
>
> diff --git a/tests/vm/Makefile.include b/tests/vm/Makefile.include
> index 1bf9693d19..835e3f3549 100644
> --- a/tests/vm/Makefile.include
> +++ b/tests/vm/Makefile.include
> @@ -2,7 +2,7 @@
>  
>  .PHONY: vm-build-all vm-clean-all
>  
> -IMAGES := freebsd netbsd openbsd centos fedora
> +IMAGES := freebsd netbsd openbsd fedora
>  ifneq ($(GENISOIMAGE),)
>  IMAGES += ubuntu.i386 centos
>  endif
> @@ -49,9 +49,20 @@ vm-build-all: $(addprefix vm-build-, $(IMAGES))
>  vm-clean-all:
>  	rm -f $(IMAGE_FILES)
>  
> +# Validate the target since some targets will not
> +# be valid if their software dependencies are not installed.
> +define validate_target
> +	@echo $(1) | grep $(2) || \
> +	(echo "Invalid target ($(2))"; \
> +	echo "Valid Targets are: $(1)"; \
> +	echo "See make vm-help for more information."; \
> +	exit 1;)
> +endef
> +
>  $(IMAGES_DIR)/%.img:	$(SRC_PATH)/tests/vm/% \
>  			$(SRC_PATH)/tests/vm/basevm.py \
>  			$(SRC_PATH)/tests/vm/Makefile.include
> +	$(call validate_target,${IMAGES},$*)

This mechanism seems suspect to me. Surely the "make" way is to just
ensure we don't include the targets when we don't have the dependencies
like we do above for GENISOIMAGE?

Random side note: I wonder how this sort of problem is solved in a meson
world? Paolo?

-- 
Alex Bennée