qmk-dactyl-manuform-a/build_layout.mk

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LAYOUTS_PATH := layouts
LAYOUTS_REPOS := $(patsubst %/,%,$(sort $(dir $(wildcard $(LAYOUTS_PATH)/*/))))
define SEARCH_LAYOUTS_REPO
LAYOUT_KEYMAP_PATH := $$(LAYOUTS_REPO)/$$(LAYOUT)/$$(KEYMAP)
LAYOUT_KEYMAP_JSON := $$(LAYOUT_KEYMAP_PATH)/keymap.json
LAYOUT_KEYMAP_C := $$(LAYOUT_KEYMAP_PATH)/keymap.c
ifneq ("$$(wildcard $$(LAYOUT_KEYMAP_JSON))","")
-include $$(LAYOUT_KEYMAP_PATH)/rules.mk
KEYMAP_C := $(KEYMAP_OUTPUT)/keymap.c
KEYMAP_JSON := $$(LAYOUT_KEYMAP_JSON)
KEYMAP_PATH := $$(LAYOUT_KEYMAP_PATH)
else ifneq ("$$(wildcard $$(LAYOUT_KEYMAP_C))","")
-include $$(LAYOUT_KEYMAP_PATH)/rules.mk
KEYMAP_C := $$(LAYOUT_KEYMAP_C)
KEYMAP_PATH := $$(LAYOUT_KEYMAP_PATH)
endif
endef
define SEARCH_LAYOUTS
$$(foreach LAYOUTS_REPO,$$(LAYOUTS_REPOS),$$(eval $$(call SEARCH_LAYOUTS_REPO)))
endef
ifneq ($(FORCE_LAYOUT),)
ifneq (,$(findstring $(FORCE_LAYOUT),$(LAYOUTS)))
$(info Forcing layout: $(FORCE_LAYOUT))
LAYOUTS := $(FORCE_LAYOUT)
else
$(error Forced layout does not exist)
endif
endif
$(foreach LAYOUT,$(LAYOUTS),$(eval $(call SEARCH_LAYOUTS)))
# Use rule from build_json.mk, but update prerequisite in case KEYMAP_JSON was updated
$(KEYMAP_C): $(KEYMAP_JSON)
$(QMK_BIN) json2c --quiet --output $(KEYMAP_C) $(KEYMAP_JSON)