#!/usr/bin/env bash
# Copyright 2016 Luke Shumaker
# License: WTFPLv2

prefix = /usr/local
bindir = $(prefix)/bin
systemddir = $(prefix)/lib/systemd/system
DESTDIR = 
Q = @

########################################################################

MAKEFLAGS += -r
vars = $(patsubst .var.%,%,$(filter .var.%,$^))
build_targets = httpconnectd httpconnectd@.service httpconnectd.socket
install_targets = $(DESTDIR)$(bindir)/httpconnectd $(DESTDIR)$(systemddir)/httpconnectd@.service $(DESTDIR)$(systemddir)/httpconnectd.socket

all: $(build_targets)
install: $(install_targets)
clean:
	rm -f -- httpconnectd httpconnectd@.service
uninstall:
	rm -f -- $(install_targets)
	rmdir -p -- $(dir $(install_targets))
.PHONY: all install clean uninstall

%: %.sh
	install -m755 $< $@

%: %.in
	$(if $(Q),$(Q)echo 'EDIT < $< > $@';)$(if $(vars),sed $(foreach v,$(vars), -e 's|$(v)|$($(v))|g' ),cat) < $< > $@

$(DESTDIR)$(bindir)/%: %
	install -Dm755 $< $@
$(DESTDIR)$(systemddir)/%: %
	install -Dm644 $< $@

.var.%: FORCE
	$(Q)printf '%s' '$($*)' > .tmp$@ && { cmp -s .tmp$@ $@ && rm -f -- .tmp$@ || mv -Tf .tmp$@ $@; } || { rm -f -- .tmp$@; false; }

.DELETE_ON_ERROR:
.SECONDARY:
.PHONY: FORCE