all: control equivs-stamp

include src/equivs.mk

control: src/control.sh depends.control .git/refs/heads/master
	./src/control.sh depends.control > $@

DD_USER = dyndns
DD_GROUP = dyndns

.PHONY: install all

prefix = /usr/local
exec_prefix = $(prefix)
bindir = $(exec_prefix)/bin

scripts = samizdat-ssh-command cryptonomic-dyndns-command
executables = $(addprefix src/, $(scripts))

install: equivs-stamp $(executables)
ifneq ($(shell id -u),0)
	sudo $(MAKE) MAKEFLAGS=$(MAKEFLAGS) $@
else
	getent passwd $(DD_USER) || useradd --system --create-home $(DD_USER)
	@chown -v root:$(DD_GROUP) /etc/powerdns
	@chown -v pdns:$(DD_GROUP) /etc/powerdns/powerdns.sqlite3
	@chmod -v g+rwx /etc/powerdns
	@chmod -v g+rw /etc/powerdns/powerdns.sqlite3
	$(MAKE) ~$(DD_USER)/.ssh/authorized_keys
	install $(executables) $(bindir)/
endif

define dyndns_authorized_keys_contents
command="$(bindir)/samizdat-ssh-command $(bindir)/cryptonomic-dyndns-command",no-port-forwarding * Samizdat - YES WE CAN
endef

~$(DD_USER)/.ssh/authorized_keys:
	: writing file $@  $(file >$@,$(dyndns_authorized_keys_contents))