1 files changed, 32 insertions, 0 deletions

diff --git a/build_layout.mk b/build_layout.mk
new file mode 100644
index 000000000..b4b00793e
--- /dev/null
+++ b/build_layout.mk
@@ -0,0 +1,32 @@
+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_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)))