#!/usr/bin/env python3
"""
Validate a GFA file
"""

import sys
import os
import gfapy
import argparse

op = argparse.ArgumentParser(description=__doc__)
op.add_argument("filename")
op.add_argument('--version', action='version', version='%(prog)s 1.0')
opts = op.parse_args()

try:
  gfa = gfapy.Gfa.from_file(opts.filename)
  gfa.validate()
except gfapy.Error as err:
  sys.stderr.write(str(err)+"\n")
  sys.exit(1)