Makefile.in

CFLAGS ?= -O2
CFLAGS += -Wall

package		:= $(shell head -n1 README.md)
version		:= $(shell cat VERSION)

schedules			:= @schedules@
schedules_not			:= @schedules_not@
enable_persistent	:= @enable_persistent@
enable_randomized_delay	:= @enable_randomized_delay@
enable_setgid		:= @enable_setgid@

prefix		:= @prefix@
bindir		:= @bindir@
confdir		:= @confdir@
datadir		:= @datadir@
libdir		:= @libdir@
statedir	:= @statedir@
mandir		:= @mandir@
docdir		:= @docdir@
unitdir		:= @unitdir@
generatordir	:= @generatordir@

runparts	:= @runparts@

srcdir		:= $(CURDIR)/src
outdir		:= $(CURDIR)/out
builddir	:= $(outdir)/build
distname	:= $(package)-$(version)
distdir		:= $(outdir)/dist/$(distname)
tarball		:= $(outdir)/dist/$(distname).tar.xz

out_services	:= $(foreach schedule,$(schedules),$(builddir)/units/cron-$(schedule).service)
out_timers		:= $(foreach schedule,$(schedules),$(builddir)/units/cron-$(schedule).timer)
out_targets		:= $(foreach schedule,$(schedules),$(builddir)/units/cron-$(schedule).target)
out_units		:= $(out_services) $(out_timers) $(out_targets) $(builddir)/units/cron.target \
                           $(builddir)/units/cron-update.path $(builddir)/units/cron-update.service \
                           $(builddir)/units/cron-failure@.service
out_manuals		:= $(patsubst $(srcdir)/man/%.in,$(builddir)/man/%,$(wildcard $(srcdir)/man/*))
out_programs		:= $(patsubst $(srcdir)/bin/%.py,$(builddir)/bin/%,$(wildcard $(srcdir)/bin/*.py))
outputs			:= $(out_units) $(out_manuals) $(out_programs) $(builddir)/bin/crontab_setgid

define \n


endef

null :=
requires = $(subst ${null} ${null},\n,$(foreach schedule,$(schedules),Requires=cron-$(schedule).timer))
persistent = $(if $(filter $(enable_persistent),yes),True,False)
randomized_delay = $(if $(filter $(enable_randomized_delay),yes),True,False)

# $(call in2out,$input,$output,$schedule,$requires)
define in2out

	sed \
		-e "s|\@package\@|$(package)|g" \
		-e "s|\@confdir\@|$(confdir)|g" \
		-e "s|\@statedir\@|$(statedir)|g" \
		-e "s|\@bindir\@|$(bindir)|g" \
		-e "s|\@libdir\@|$(libdir)|g" \
		-e "s|\@unitdir\@|$(unitdir)|g" \
		-e "s|\@generatordir\@|$(generatordir)|g" \
		-e "s|\@runparts\@|$(runparts)|g" \
		-e "s|\@version\@|$(version)|g" \
		-e "s|\@persistent\@|$(persistent)|g" \
		-e "s|\@randomized_delay\@|$(randomized_delay)|g" \
		-e "s|\@schedule\@|$3|g" \
		-e "s|\@requires\@|$4|g" \
		$1 > $2
endef

all: $(builddir) $(outputs)

clean:
	rm -rf $(outdir)

distprep: $(distdir)
	cp -a configure		$(distdir)
	cp -a Makefile.in	$(distdir)
	cp -a LICENSE		$(distdir)
	cp -a README.md		$(distdir)
	cp -a VERSION		$(distdir)
	cp -a src			$(distdir)

dist: $(tarball)

test: all
	$(foreach manpage,$(out_manuals),\
		man --warnings --encoding=utf8 --local-file $(manpage) 2>&1 > /dev/null${\n})
	$(foreach program,$(out_programs),\
		pyflakes3 $(program) ${\n})

install: all
	install -m755 -D $(builddir)/bin/crontab $(DESTDIR)$(bindir)/crontab
	install -m755 -D $(builddir)/bin/systemd-crontab-generator $(DESTDIR)$(generatordir)/systemd-crontab-generator
	install -m755 -D $(builddir)/bin/remove_stale_stamps $(DESTDIR)$(libdir)/$(package)/remove_stale_stamps
	install -m755 -D $(builddir)/bin/mail_on_failure $(DESTDIR)$(libdir)/$(package)/mail_on_failure
	install -m755 -D $(builddir)/bin/boot_delay $(DESTDIR)$(libdir)/$(package)/boot_delay
ifneq ($(enable_setgid),no)
	install -m755 -D $(builddir)/bin/crontab_setgid $(DESTDIR)$(libdir)/$(package)/crontab_setgid
	if getent group cron > /dev/null 2>&1; then \
	    chgrp cron $(DESTDIR)$(libdir)/$(package)/crontab_setgid ; \
	    chmod 2755 $(DESTDIR)$(libdir)/$(package)/crontab_setgid ; \
	fi
endif

	install -m644 -D $(builddir)/man/systemd.cron.7 $(DESTDIR)$(mandir)/man7/systemd.cron.7
	install -m644 -D $(builddir)/man/crontab.1 $(DESTDIR)$(mandir)/man1/crontab.1
	install -m644 -D $(builddir)/man/crontab.5 $(DESTDIR)$(mandir)/man5/crontab.5
	install -m644 -D $(builddir)/man/anacrontab.5 $(DESTDIR)$(mandir)/man5/anacrontab.5
	install -m644 -D $(builddir)/man/systemd-crontab-generator.8 $(DESTDIR)$(mandir)/man8/systemd-crontab-generator.8

	install -m644 -D $(builddir)/units/cron.target $(DESTDIR)$(unitdir)/cron.target
	install -m644 $(builddir)/units/cron-update.path $(DESTDIR)$(unitdir)
	install -m644 $(builddir)/units/cron-update.service $(DESTDIR)$(unitdir)
	install -m644 $(builddir)/units/cron-failure@.service $(DESTDIR)$(unitdir)

	$(foreach schedule,$(schedules),\
		install -m644 $(builddir)/units/cron-$(schedule).timer $(DESTDIR)$(unitdir)${\n})
	$(foreach schedule,$(schedules),\
		install -m644 $(builddir)/units/cron-$(schedule).target $(DESTDIR)$(unitdir)${\n})
	$(foreach schedule,$(schedules),\
		install -m644 $(builddir)/units/cron-$(schedule).service $(DESTDIR)$(unitdir)${\n})

uninstall:
	rm -f $(DESTDIR)$(bindir)/crontab
	rm -f $(DESTDIR)$(libdir)/systemd/system-generators/systemd-crontab-generator
	rm -f $(DESTDIR)$(libdir)/$(package)/remove_stale_stamps
	rm -f $(DESTDIR)$(libdir)/$(package)/mail_on_failure
	rm -f $(DESTDIR)$(libdir)/$(package)/boot_delay
	rm -f $(DESTDIR)$(libdir)/$(package)/crontab_setgid

	rm -f $(DESTDIR)$(mandir)/man7/systemd.cron.7
	rm -f $(DESTDIR)$(mandir)/man1/crontab.1
	rm -f $(DESTDIR)$(mandir)/man5/crontab.5
	rm -f $(DESTDIR)$(mandir)/man5/anacrontab.5
	rm -f $(DESTDIR)$(mandir)/man8/systemd-crontab-generator.8

	rm -f $(DESTDIR)$(unitdir)/cron.target
	rm -f $(DESTDIR)$(unitdir)/cron-update.path
	rm -f $(DESTDIR)$(unitdir)/cron-update.service
	rm -f $(DESTDIR)$(unitdir)/cron-failure@.service

	$(foreach schedule,$(schedules),\
		rm -f $(DESTDIR)$(unitdir)/cron-$(schedule).timer${\n})
	$(foreach schedule,$(schedules),\
		rm -f $(DESTDIR)$(unitdir)/cron-$(schedule).target${\n})
	$(foreach schedule,$(schedules),\
		rm -f $(DESTDIR)$(unitdir)/cron-$(schedule).service${\n})



$(builddir)/units/cron-update.path: $(srcdir)/units/cron-update.path.in
	$(call in2out,$<,$@)

$(builddir)/units/cron-update.service: $(srcdir)/units/cron-update.service.in
	$(call in2out,$<,$@)

$(builddir)/units/cron-failure@.service: $(srcdir)/units/cron-failure@.service.in
	$(call in2out,$<,$@)

$(builddir)/units/cron-%.service: $(srcdir)/units/cron-schedule.service.in
	$(call in2out,$<,$@,$*)

$(builddir)/units/cron-boot.service: $(srcdir)/units/cron-boot.service.in
	$(call in2out,$<,$@,boot)

$(builddir)/units/cron-%.timer: $(srcdir)/units/cron-schedule.timer.in
	$(call in2out,$<,$@,$*)
ifneq ($(enable_persistent),yes)
	sed -i -e '/^Persistent=/d' $@
endif

$(builddir)/units/cron-boot.timer: $(srcdir)/units/cron-boot.timer.in
	$(call in2out,$<,$@,boot)

$(builddir)/units/cron-%.target: $(srcdir)/units/cron-schedule.target.in
	$(call in2out,$<,$@,$*)

$(builddir)/units/cron.target: $(srcdir)/units/cron.target.in
	$(call in2out,$<,$@,,$(requires))

$(builddir)/man/%: $(srcdir)/man/%.in
	$(call in2out,$<,$@)

$(builddir)/man/systemd.cron.7: $(srcdir)/man/systemd.cron.7.in
	$(call in2out,$<,$@)
	$(foreach schedule_not,$(schedules_not),\
		sed -i $@ -e '/cron-$(schedule_not).timer/d' \
	               -e '/cron\.$(schedule_not)/,+3d' \
		       -e '/journalctl -u cron-$(schedule_not)/,+1d' ${\n})

$(builddir)/bin/systemd-crontab-generator: $(srcdir)/bin/systemd-crontab-generator.py
	$(call in2out,$<,$@)
	# BUG: this should only run if schedule_not in hourly/daily/weekly/monthly
	$(foreach schedule_not,$(schedules_not),\
		sed -i $@ -e '/\/etc\/cron.$(schedule_not)/d' ${\n})
	chmod +x $@

$(builddir)/bin/%: $(srcdir)/bin/%.py
	$(call in2out,$<,$@)
	chmod +x $@

$(builddir)/bin/crontab_setgid: $(srcdir)/bin/crontab_setgid.c
ifneq ($(enable_setgid),no)
	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $< -DCRONTAB_DIR='"$(statedir)"' -o $@
endif

$(outputs): | $(builddir)

$(outdir):
	mkdir -p $@

$(builddir):
	mkdir -p $@
	mkdir -p $@/bin
	mkdir -p $@/man
	mkdir -p $@/units

$(distdir):
	mkdir -p $(distdir)

$(tarball): distprep
	cd $(distdir)/..; tar -cJ --owner=root --group=root --file $(tarball) $(distname)

.PHONY: all clean dist distprep install uninstall