# this file:
#   http://user.it.uu.se/~embe8573/emacs-init/Makefile
#   https://dataswamp.org/~incal/emacs-init/Makefile

emacs=/usr/local/bin/emacs

ema-erc=\"${ema-path}/erc\"
ema-gnus=\"${ema-path}/gnus\"
ema-ide=\"${ema-path}/ide\"
ema-init=\"${ema-path}\"
ema-w3m=\"${ema-path}/w3m\"
ema=${ema-erc} ${ema-gnus} ${ema-ide} ${ema-init} ${ema-w3m}

elpa-path=~/.emacs.d/elpa

markdown-mode=\"${elpa-path}/markdown-mode-20201220.253\"
w3m=\"${elpa-path}/w3m-20210104.424\"

elpa=${markdown-mode} ${w3m}

packs=${ema} ${elpa}

byte-compile=$(emacs)                                       \
	--batch                                                  \
	--eval "(setq load-path (append load-path '(${packs})))" \
	-f batch-byte-compile

sed-filter=2>&1 | sed '/^\(Loading\|Wrote\)/d' # errors and warnings only

error-file=error.txt

INIT_FILE=~/.emacs
INIT_FILE_BC=$(INIT_FILE).elc

ELS = $(shell zsh -c "ls -1 **/*.el")
ELCS= $(ELS:.el=.elc)

all: $(ELCS) $(INIT_FILE_BC)
	rm -f $(error-file)

$(INIT_FILE_BC): $(INIT_FILE)
	$(byte-compile) $< $(sed-filter)

%.elc: %.el
	$(byte-compile) $< $(sed-filter) > $(error-file)
	if [ -s $(error-file) ]; then echo -n "\n$<: "; cat $(error-file); fi
	rm -f $<~

clean:
	$(shell zsh -c "rm -rf **/*.elc(N)")
	rm -f $(INIT_FILE_BC) $(error-file)

again:
	${MAKE} clean
	${MAKE}

new:
	${MAKE} again