prefix = /usr/local
bindir = $(prefix)/bin
libdir = $(prefix)/lib
systemddir = $(libdir)/systemd

GOPATH := $(realpath $(dir $(lastword $(MAKEFILE_LIST))))

all: build

deps = golang.org/x/exp/inotify gopkg.in/yaml.v2

$(foreach d,$(deps),$(eval src/$d: ; GOPATH='$(GOPATH)' go get -d -u $d))

generate: generate-nslcd_proto $(addprefix src/,$(deps))
generate-nslcd_proto: 
	$(MAKE) -C src/nslcd_proto
.PHONY: generate-nslcd_proto

build: generate
	GOPATH='$(GOPATH)' go install nshd

clean:
	rm -rf -- pkg bin src/*.*/
	$(MAKE) -C src/nslcd_proto clean

install = $(addprefix $(DESTDIR),$(bindir)/nshd $(systemddir)/system/nshd.socket $(systemddir)/system/nshd.service)

install: $(install)

uninstall:
	rm -f -- $(install)
	rmdir -p -- $(sort $(dir $(install))) 2>/dev/null || true

bin/nshd: build

$(DESTDIR)$(bindir)/%: bin/%
	install -Dm755 $< $@
$(DESTDIR)$(systemddir)/system/%.socket: %.socket
	install -Dm644 $< $@
$(DESTDIR)$(systemddir)/system/%.service: %.service
	install -Dm644 $< $@

.PHONY: all generate build clean install uninstall
.SECONDARY: