#!/usr/bin/env python

import argparse
from desispec.scripts.specex import merge_psf

parser = argparse.ArgumentParser(description="merge psf")

parser.add_argument('-i','--infiles', type = str, default = None, required=True, nargs="*",
                    help = 'input psf fits files')
parser.add_argument('-o','--outfile', type = str, default = None, required=True,
                    help = 'output psf fits file')

args = parser.parse_args()

merge_psf(args.infiles[0],args.infiles[1:],args.outfile)
