ANITA_TAGS := anita\:amd64 anita\:i386

MULTIARCH_TAGS := \
	centos\:7.3-aarch64-clean centos\:7.3-amd64-clean \
	centos\:7.2-amd64-clean \
	$(foreach a,x86_64 ppc64le aarch64, \
	  $(foreach v,25 24, \
	    fedora\:$(v)-$(a))) \
	$(foreach a,ppc64el arm64 armhf mips mipsel amd64 i386, \
	  $(foreach v,sid buster stretch, \
	    debian-debootstrap\:$(a)-$(v))) \
	$(foreach a,ppc64el arm64 armhf amd64 i386, \
	  $(foreach v,bionic xenial, \
	    ubuntu-debootstrap\:$(a)-$(v))) \
	ubuntu-debootstrap\:powerpc-xenial \
	$(foreach a,aarch64 armhf amd64 i386, \
	  $(foreach v,v3.8 v3.7 v3.6, \
	    alpine\:$(a)-$(v))) \

OTHER_TAGS := djgpp\:6.1.0

ALL_TAGS := $(ANITA_TAGS) $(MULTIARCH_TAGS) $(OTHER_TAGS)

arch_filter = $(sort \
	$(foreach arch,$(1), \
	  $(filter-out $(subst $(arch),,$(MULTIARCH_TAGS)),$(MULTIARCH_TAGS))))

machine_map = \
	$(if $(filter i386 i686 x86,$(1)),i386 x86, \
	$(if $(filter x86_64,$(1)),amd64 i386 x86, \
	$(if $(filter armv7l armv6l,$(1)),armhf, \
	$(if $(filter aarch64,$(1)),aarch64 arm64, \
	$(if $(filter ppc64le,$(1)),ppc64le ppc64el, \
	$(if $(filter ppc,$(1)),powerpc, \
	$(if $(filter mips,$(1)),mips mipsel, \
	$(1))))))))

NATIVE_TAGS := $(call arch_filter,$(call machine_map,$(shell uname -m)))

# rather arbitrary selection of images that seem to work (focus on amd64)
DEFAULT_TAGS := \
	anita\:amd64 \
	djgpp\:6.1.0 \
	fedora\:25-x86_64 \
	fedora\:25-ppc64le \
	fedora\:25-aarch64 \
	fedora\:24-x86_64 \
	centos\:7.3-aarch64-clean \
	centos\:7.3-amd64-clean \
	centos\:7.2-amd64-clean \
	debian-debootstrap\:ppc64el-stretch \
	debian-debootstrap\:armhf-stretch \
	debian-debootstrap\:mips-stretch \
	debian-debootstrap\:mipsel-stretch \
	debian-debootstrap\:amd64-stretch \
	debian-debootstrap\:i386-stretch \
	debian-debootstrap\:amd64-sid \
	ubuntu-debootstrap\:arm64-xenial \
	ubuntu-debootstrap\:amd64-xenial \
	ubuntu-debootstrap\:powerpc-xenial \
	ubuntu-debootstrap\:amd64-bionic \
	alpine\:amd64-v3.7 \
	alpine\:amd64-v3.8 \

# also run all native tests by default
DEFAULT_TAGS += $(filter-out $(DEFAULT_TAGS),$(NATIVE_TAGS))

default: $(DEFAULT_TAGS)

native: $(NATIVE_TAGS)

all: $(ALL_TAGS)

show-default:
	@printf "%s\n" $(DEFAULT_TAGS)

show-native:
	@printf "%s\n" $(NATIVE_TAGS)

show-all:
	@printf "%s\n" $(ALL_TAGS)

.PHONY: default native all
.PHONY: show-default show-native show-all
.PHONY: $(ALL_TAGS)