#!/bin/sh
#
# Rebuild "pu" from topic branches.
#

git status && exit
git checkout pu &&
git reset --hard master &&
ORIG_HEAD=`git rev-parse ORIG_HEAD` || exit

case "$#" in
0)
	# interactive ;-)
	shift
	HH=`cd .git/refs/heads && find -type f |
	sed -e 's/^\.\///' -e '/^master$/d' -e '/^maint$/d' -e '/^pu$/d'`
	while test "$HH"
	do
		I=0
		echo "0: done"
		for H in $HH
		do
			I=$(($I+1))
			echo -n "$I: "
			git-show-branch $H
		done
		echo -n "Merge which ones (0 to finish)? "
		read ans
		case "$ans" in
		'' | 0)
			break ;;
		esac
		I=0
		UNUSE=
		USE=
		for H in $HH
		do
			I=$(($I+1))
			case " $ans " in
			*' '$I' '*)
				USE="$USE$H "
				;;
			*)
				UNUSE="$UNUSE$H "
				;;
			esac
		done
		git pull -n . $USE || exit
		HH=$UNUSE
	done
	exit
	;;
esac

for H
do
	(IFS=",$IFS"; git pull -n . $H) || exit
done

(IFS=",$IFS"; git show-branch master pu $* $ORIG_HEAD)