bootstrap

#!/bin/sh
#
# NOTE: If you just want to build lux, do not use this file.  Simply
# run the ordinary `./configure && make` commands.  To clean up all
# the auto-generated files, use `./bootstrap clean`.  To speed up
# bootstrapping (with the risk that autoconf doesn't get things
# right), use `./bootstrap fast`.

if [ -f Makefile ]; then
	make distclean
fi

rm -fr .autom4te.cache .build-aux
rm -f  aclocal.m4 configure lux.hin INSTALL
find . -name 'Makefile.in' -type f -exec rm {} \;
[ -d .git ] && rm -f .version AUTHORS NEWS ChangeLog

if [ "x$1" != "xclean" ]; then
	if [ -d .git ]; then
		# Generate .version from git tags
		git describe --always --tags --dirty | sed 's/^v//' > .version

		# Generate AUTHORS from git log
		printf 'Author(s) of lux:\n\n' >  AUTHORS
		git shortlog -nse  | cut -c7-  >> AUTHORS

		# Generate NEWS from git commit messages
		printf 'lux framework NEWS\n\n' > NEWS
		for t in $(git tag -l | sed '1!G;h;$!d'); do
			T=$(echo "$t" | sed 's/^v//')
			h="* Noteworthy changes in release ${T}"
			git show -s --format="${h} (%ad)%n%n%b" \
				--date=short "${t}"
		done >> NEWS

		# Generate ChangeLog from git commit messages
		printf 'lux framework Change Log\n\n' > ChangeLog
		git log --format='%ad    %an <%ae>%n%n%w(76,4,8)* %B' \
			--date=short |\
		awk '
		/^[0-9]{4}-[0-9]{2}-[0-9]{2}.*<.*@.*>$/ {
			if(h!=$0) { h=$0 } else { getline; next }
		}
		{ print $0 }' >> ChangeLog
	fi
	mkdir .build-aux

	# Paranoia: sometimes autoconf doesn't get things right the first time
	for i in $([ "x$1" = "xfast" ] && seq 1 || seq 3); do
		autoreconf --install --force --verbose
	done

	# Rename PACKAGE_* to LUX_* and hacks to drop unwanted macros
	sed -i~	-e's/\#define\ PACKAGE_/#define LUX_/g' \
		configure
	sed -i~	-e's/by\ autoheader/by autoheader, edited by bootstrap/' \
		-e'2d' \
		-e'/libtool stores uninstalled libraries/{N;N;d;}' \
		-e'/Name of package/{N;N;d;}' \
		-e'/Version number of package/{N;N;d;}' \
		-e's/this\ package/lux/g' \
		-e's/PACKAGE_/LUX_/g' \
		lux.hin
	find . -type f -name '*~' -exec rm {} \;
fi