#!/bin/sh
# compute relnotes entries

master=${master-master}
maint=${maint-maint}

tmp=/var/tmp/RE-tmp.$$
trap 'rm -f "$tmp" "$tmp".*' 0

git rev-list --first-parent --parents --merges --reverse "$@" |
while read commit before side
do
	git cat-file commit $commit >"$tmp"
	branch=$(sed -ne "s/^Merge branch '\([^']*\)'.*/\1/p" "$tmp")

	sed -e '1,/^Merge branch /d' -e '/^\* /,$d;' "$tmp" |
	git stripspace -s |
	sed -e 's/^/   /' -e '1s/^   / * /' >"$tmp.desc"

	if test -s "$tmp.desc"
	then
		cat "$tmp.desc"
	else
		echo " * [$branch]"
	fi

	master_count=$(git rev-list ^$master $side | wc -l)
	maint_count=$(git rev-list ^$maint $side | wc -l)
	if test "$master_count" = "$maint_count" && test "$maint_count" != 0
	then
		Meta/ML "$branch"
	fi

	echo
done