CHANGED = $(shell git diff --name-only --relative -- '*.zone' )

export GIT_AUTHOR_NAME = "Bind Makefile"
#export GIT_AUTHOR_EMAIL = "$(shell whoami)@$(shell hostname -f)"
#export GIT_COMMITTER_NAME = $(GIT_AUTHOR_NAME)
#export GIT_COMMITTER_EMAIL = $(GIT_AUTHOR_EMAIL)

all: rollover
install: rollover

rollover: autoserial diff check reload eof


diff:
	@echo "Diff Zones... "
	@git diff -U0 -- $(CHANGED) \
	| grep -a -v -E '^(diff |index |---|@@)' \
	| sed -e 's/^[+]* .\/\([^ 	]*\).*/=> \1/'

autoserial:
	@for file in $(CHANGED); do \
		perl -p -i -e 'if ($$p =~ /[\t\s]+IN[\t\s]+SOA[\t\s]+/) { $$stamp = sprintf("%4.4d%02.2d%02.2d", (localtime)[5]+1900, (localtime)[4]+1, (localtime)[3]); $$count = (/$$stamp([0-9]{2})/)? $$1 + 1: 1; s/[0-9]+/sprintf("%s%02.2d", $$stamp, $$count)/e; } $$p = $$_;' $$file; \
	done

check:
	@echo "Checking Configs... "
	@if ! named-checkconf /etc/bind/named.conf; then \
		echo "FIX THE ERROR AND TRY AGAIN"; \
		exit 1 ; \
	fi

	@echo "Checking Zones... "
	@named-checkconf -j -p /etc/bind/named.conf \
	| perl -e 'my $$zone = ""; while (<>) { if (/^\s+zone\s+\"(.*)\"/) { $$zone = $$1; } elsif (($$zone ne "") && /^\s+file\s+\"(.*?)\"/) { print "$$zone $$1\n"; $$zone = ""; } }' \
	| sort \
	| uniq \
	| while read zone file; do \
		echo "FOO: zone: $$zone file: $$file"; \
		if [ -z "$$file" -o "$$zone" = "key" ] ; then \
			continue ; \
		fi ; \
		if echo -n "$$zone" | grep -q -E '(sc-eur.com|db.root|named.dump|named.stats)'; then \
			continue; \
		fi; \
		if ! named-checkzone -q -i "full" $$zone $$file; then \
			named-checkzone -i "full" $$zone $$file; \
			echo "FIX THE ERROR AND TRY AGAIN"; \
			exit 1 ; \
		fi; \
	done

#@echo "Checking CNAMEs and PTRs... "
#@grep -l -E '.*(PTR|CNAME).*[^.]*[.][^.]*[^.]$$' *.* \
#| grep -v '\.sh$$' \
#| while read file; do \
#	echo "$$file: DO NOT FORGET THE LAST DOT"; \
#	grep -E '.*(PTR|CNAME).*[^.]*[.][^.]*[^.]$$' $$file; \
#	exit 1 ; \
#done

reload:
	@while [ "$$answer" = "" ]; do \
		echo -n "Do you want to reload all zones ? [yes] "; \
		read answer; \
		case $$answer in \
			[Yy]|[Yy][Ee][Ss]) \
				answer="yes"; \
				break; \
				;; \
			[Nn]|[Nn][Oo]) \
				answer="no"; \
				break; \
				;; \
			"") \
				answer="yes"; \
				break; \
				;; \
			*) \
				answer=""; \
				;; \
		esac; \
	done; \
	if [ "$$answer" = "yes" ]; then \
		etckeeper commit "Changed DNS Zones: $(CHANGED)" ; \
		rndc reload;  \
	else \
		echo "Server reload aborted"; \
		exit 1 ; \
	fi

eof:
	@echo "DONE -- That's all folks!"