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all: manual

MANUALS = $(patsubst %.md,%,$(wildcard ./doc/*.[1-9].md))
manual: $(MANUALS)

# upper case the headers and remove the links
$(MANUALS): %: %.md
	pandoc -f markdown -t json -- "$<" | ./pandoc2man.jq | pandoc -s -f json -t man+smart -o "$@"

test:
	@./tests/run-all

HTML_ROOTDIR ?= ./doc
CSS ?= /usr/share/javascript/bootstrap/css/bootstrap.min.css
HTML_TEMPLATE ?= ./doc/template.html

HTML_FILES = $(addprefix $(HTML_ROOTDIR)/,$(patsubst ./doc/%.md,%.html,$(wildcard ./doc/*.md)))
html: $(HTML_FILES)

## CSS="https://guilhem.org/static/css/bootstrap.min.css" HTML_ROOTDIR="$XDG_RUNTIME_DIR/Downloads" make html
$(HTML_ROOTDIR)/%.html: ./doc/%.md $(HTML_TEMPLATE)
	mtime="$$(git --no-pager log -1 --pretty="format:%ct" -- "$<" 2>/dev/null)"; \
	[ -n "$$mtime" ] || mtime="$$(date +%s -r "$<")"; \
	[ "$<" = "doc/index.md" ] && parent="" || parent="./index.html"; \
	pandoc -sp -f markdown -t html+smart --css=$(CSS) --template=$(HTML_TEMPLATE) \
		--variable=date:"$$(LC_TIME=C date +"Last modified on %a, %d %b %Y at %T %z" -d @"$$mtime")" \
		--variable=keywords:"interimap" \
		--variable=lang:"en" \
		--variable=parent:"$$parent" \
		--output="$@" -- "$<"

doc: manual html

install:

clean:
	rm -f $(MANUALS) $(HTML_FILES)

.PHONY: all manual html doc test install clean