TOP_DIR = ../..
OUT_DIR = $(TOP_DIR)/public
TEXT_FILES = md org

dirname = $(patsubst %/,%,$(dir $(1)))

text_patterns = $(foreach ext,$(TEXT_FILES),'$(TOP_DIR)/**.$(ext)')

text_folders = $(sort $(call dirname,$(shell git ls-files $(text_patterns))))

page_folders = $(patsubst $(TOP_DIR)%,$(OUT_DIR)%,$(text_folders))

all: site

dependencies = deps.mk
include $(dependencies)

$(dependencies): make-deps.py $(text_folders)
	python3 $< "$(TEXT_FILES)" $(OUT_DIR)

site: $(pages) $(indices) $(autoindices)

$(page_folders):
	mkdir -p $@

$(pages) $(indices):
	pandoc -s $< -o $@

# ⚠ When tweaking this rule, check whether it still works for the
#   top-level index.html, i.e. when there is no top-level README.
$(autoindices): $(OUT_DIR)%/index.html: $(TOP_DIR)% make-index.py | $(OUT_DIR)%
	python3 make-index.py "$(TEXT_FILES)" "$(*:/%=%)" $(OUT_DIR)

clean:
	-rm $(dependencies)
	-rm -r $(OUT_DIR)