#!/bin/sh

# Read in library functions
if ! [ -r @LIB@/patchfns ]
then
	echo "Cannot read library @LIB@/patchfns" >&2
	exit 1
fi
. @LIB@/patchfns

usage()
{
	echo "Usage: newpatch patchname"
	if [ x$1 = x-h ]
	then
		cat <<EOF

  Create a new patch, and insert it after the topmost patch
  in the patch series file.

EOF
		exit 0
	else
		exit 1
	fi
}

options=`getopt -o h -- "$@"`

if [ $? -ne 0 ]
then
	usage
fi

eval set -- "$options"

while true
do
	case "$1" in
	-h)
		usage -h ;;
	--)
		shift
		break ;;
	esac
done

if [ $# -ne 1 ]
then
	usage
fi

patch_file=$(echo $1 | sed -e 's:^'"$P"'patches/::' -e 's:^\.pc/::')
patch=$(stripit $patch_file)
if [ -z "$patch" ]
then
	usage
fi

if patch_in_series $patch
then
	echo "Patch $patch exists already"
	exit 1
fi

pc_file=$(pc_file_name $patch)
mkdir -p $(dirname $pc_file)
touch $pc_file

insert_in_series $patch_file || exit 1
add_to_db $patch || exit 1

echo "Patch $patch is now on top"