SHELL = bash

BUILD_DIR                   = build
DEVEL_BUILD_DIR             = $(BUILD_DIR)/devel
PROD_BUILD_DIR              = $(BUILD_DIR)/prod

TEMPLATES_SRC_DIR           = .
TEMPLATES_SRC_FILES         = $(wildcard $(TEMPLATES_SRC_DIR)/*.tmpl)
TEMPLATES_DEVEL_BUILD_DIR   = $(DEVEL_BUILD_DIR)
TEMPLATES_DEVEL_BUILD_FILES = $(patsubst $(TEMPLATES_SRC_DIR)/%, $(TEMPLATES_DEVEL_BUILD_DIR)/%, $(TEMPLATES_SRC_FILES))
TEMPLATES_PROD_BUILD_DIR    = $(PROD_BUILD_DIR)
TEMPLATES_PROD_BUILD_FILES  = $(patsubst $(TEMPLATES_SRC_DIR)/%, $(TEMPLATES_PROD_BUILD_DIR)/%, $(TEMPLATES_SRC_FILES))

devel: devel-templates

prod: prod-templates

clean:
	rm -rf $(BUILD_DIR)

devel-templates: $(TEMPLATES_DEVEL_BUILD_FILES)

$(TEMPLATES_DEVEL_BUILD_FILES): $(TEMPLATES_DEVEL_BUILD_DIR)/%.tmpl: $(TEMPLATES_SRC_DIR)/%.tmpl
	cp $^ $@;

prod-templates: $(TEMPLATES_PROD_BUILD_FILES)

$(TEMPLATES_PROD_BUILD_FILES): $(TEMPLATES_PROD_BUILD_DIR)/%.tmpl: $(TEMPLATES_SRC_DIR)/%.tmpl
	cp $^ $@;

$(shell mkdir -p $(TEMPLATES_DEVEL_BUILD_DIR) $(TEMPLATES_PROD_BUILD_DIR))