#!/usr/bin/env python2.7
#
# a small wrapper to run amitools' scripts from here without installation
#
# it assumes that this script resides in a directory of the amitools base dir

from __future__ import print_function

import os
import sys
import importlib

# get current directory
cur_dir = os.path.dirname(__file__)
# amitools folder is in parent dir
base_dir = os.path.abspath(os.path.join(cur_dir, os.pardir))
# check for amitools dir
at_dir = os.path.join(base_dir, "amitools")
if not os.path.isdir(at_dir):
  print("amitools: can't find 'amitools' dir in base dir!!", file=sys.stderr)
  sys.exit(1)

# add base dir to python path
sys.path.insert(1, base_dir)

# tool
tool = os.path.basename(__file__)
# tool module name
tool_module = "amitools.tools." + tool
main = None
# import tool module
try:
  mod = importlib.import_module(tool_module)
  mod_dict = mod.__dict__
  # check for main function
  if 'main' not in mod_dict:
    print("amitools: no 'main' function in tool module found!", file=sys.stderr)
    sys.exit(3)
  main = mod_dict['main']
except ImportError as e:
  print("amitools: error importing tool '%s': %s" % (tool_module, e), file=sys.stderr)
  sys.exit(2)

# call tool
res = main()
if res is None:
  res = 0
sys.exit(res)