lib/00_version.sh:
	echo "version='`git describe --tag`'" >"`dirname "$0"`"/lib/00_version.sh
.PHONY: lib/00_version.sh

mapsectorsh: mapsector lib/[0-9][0-9]_*.sh
	@echo "generating $@"
	@(							\
	sed -n -e '1p' $<;					\
	echo "#";						\
	echo "# $@ automatically generated from";		\
	for script in $^; do					\
		echo "#         $$script";			\
	done;							\
	sed -n -e '2,/^load$$/p' $<;				\
	for script in `ls lib/[0-9][0-9]_*.sh | sort`; do	\
		echo "#### $$script";				\
		echo;						\
		cat $$script;					\
		echo;						\
	done;							\
	sed -n -e '/^load$$/,$$p' $<;				\
	) >$@
	@sed -i -e 's/^load$$/###########################################################################/' $@
	@chmod ugo+rx $@

debian/changelog:
	@echo "generating debian/changelog"
	@(											  \
	lasttag="HEAD";										  \
	(git tag -l 'v*'; echo) | while read tag; do						  \
		case "$$lasttag" in								  \
		HEAD) version="`git describe --tag --match='v*' | sed -e 's/-/~/' -e 's/-/./g'`"; \
	              release="UNRELEASED" ;;							  \
		v*)   version="$${lasttag#v}";							  \
	              release="unstable" ;;							  \
		esac;										  \
		echo "mapsector ($$version) $$release; urgency=low";				  \
		echo;										  \
		git log --pretty=oneline --abbrev-commit $$tag$${tag:+..}$$lasttag		  \
			| while read commit description; do					  \
			echo "  * [$$commit] $$description";					  \
		done;										  \
		echo;										  \
		date="`git log --format='%cD' $$lasttag'^!'`";					  \
		author="`git log --format='%an <%ae>' $$lasttag'^!'`";				  \
		echo " -- $$author  $$date";							  \
		echo;										  \
		lasttag="$$tag" ;								  \
	done;											  \
	) >debian/changelog
.PHONY: debian/changelog

prepare: lib/00_version.sh debian/changelog
.PHONY: prepare

clean:
	rm -f mapsectorsh
	rm -f debian/changelog
	rm -f lib/00_version.sh
.PHONY: clean