.POSIX:
CC        = c99
CFLAGS    = -std=c99 -Wall -Wextra -Wpedantic
LDFLAGS   =
LDLIBS    =
PREFIX    = @PREFIX@
MANPREFIX = $(PREFIX)/share/man
VERSION   = @VERSION@
DATE      = @DATE@

headers = \
	src/vendor/sharedc/testing.h

sources = \
	src/remembering.c

manpages = \
	doc/remembering.1 \
	doc/remembering.5

.SUFFIXES: .c .o .t .t-fallible

.c.o:
	$(CC) -c $(CFLAGS) $(LDFLAGS)

.c.t:
	$(CC) $(CFLAGS) $(LDFLAGS) -DTEST            -o $@ $< $(LDLIBS)

.c.t-fallible:
	$(CC) $(CFLAGS) $(LDFLAGS) -DTEST -DFALLIBLE -o $@ $< $(LDLIBS) -lfallible

objects        = $(sources:.c=.o)
tests          = $(sources:.c=.t)
fallible-tests = $(sources:.c=.t-fallible)

all: $(tests) remembering

remembering: src/remembering.in
	$(do_subst) < $? > $@-t
	chmod +x $@-t
	mv $@-t $@

check: all
	for t in $(tests); do echo $$t && ./$$t; done
	sh tests/cli-opts.sh
	sh tests/ranking.sh
	sh tests/signals.sh
	if [ -d .git ]; then \
		echo 'Assuming Git repository, running development checks.'; \
		$(MAKE) dev-check; \
	fi

dev-check: $(fallible-tests)
	for t in $(fallible-tests); do fallible-check ./$$t; done
	sh aux/assert-clang-format.sh
	sh aux/assert-shellcheck.sh
	sh aux/workflow/assert-todos.sh

dist:
	if git show v$(VERSION) 1>/dev/null 2>/dev/null; then \
		echo 'Version v$(VERSION) already exists.'; \
		exit 1; \
	fi

	if [ '$(DATE)' != "$$(git log -1 --format=%cd --date=short HEAD)" ]; then \
		echo 'Date $(DATE) is not up-to-date.'; \
		exit 1; \
	fi

	git tag v$(VERSION)

clean:
	rm -rf public/ tests/test-profiles/ remembering $(tests) $(fallible-tests)

do_subst = sed                      \
  -e 's:[@]VERSION[@]:$(VERSION):g' \
  -e 's:[@]DATE[@]:$(DATE):g'

install: all
	install -m 755 -D remembering $(DESTDIR)$(PREFIX)/bin/remembering
	for m in $(manpages); do \
		n=$${m##*.}; \
		mkdir -p $(DESTDIR)$(MANPREFIX)/man$$n; \
		$(do_subst) < $$m | gzip > $(DESTDIR)$(MANPREFIX)/man$$n/`basename $$m`.gz; \
	done

uninstall:
	rm -f $(DESTDIR)$(PREFIX)/bin/remembering \
		$(DESTDIR)$(MANPREFIX)/man1/remembering.1 \
		$(DESTDIR)$(MANPREFIX)/man5/remembering.5
	for m in $(manpages); do rm -f $(DESTDIR)$(MANPREFIX)/man$${##*.}/`basename $$m`.gz; done

NAME_UC = Reemembering
NAME = remembering
MAILING_LIST = public-inbox
public: README.md TODOs.md CHANGELOG.md $(manpages)
	sh aux/workflow/TODOs.sh $(NAME_UC) $(NAME) $(MAILING_LIST)
	sh aux/workflow/README.sh $(NAME_UC) $(NAME)
	sh aux/workflow/commonmark.sh $(NAME_UC) CHANGELOG.md
	sh aux/ci/report.sh $(NAME_UC)
	for m in $(manpages); do groff -m man -Thtml $$m > public/`basename $$m`.html; done

.PHONY: all clean check dev-check dist install uninstall