#!/usr/bin/python
# ------------------------------------------------------------------------------
# usage:
# print_missing_modules.py path
#
# args:
# path  path to Python script to check
#
# result:
# prints a list of modules known to be missing from script checked. if no
# modules are known to be missing, returns 0, else nonzero

import modulefinder
import sets
import sys

if sys.argv.__len__() != 2:
  print 'error: incorrect number of arguments';
  sys.exit(1)

script = sys.argv[1]

f = modulefinder.ModuleFinder()

# check the specified script
f.run_script(script)

# get the missing modules
missing_modules = sets.Set(f.any_missing())

# these modules seem to be OK to be missing...
ok_missing_modules = sets.Set(['Carbon.File',
                               'Carbon.Folder',
                               'Carbon.Folders',
                               '_emx_link',
                               'ce',
                               'mac',
                               'nt',
                               'org.python.core',
                               'os.path',
                               'os2',
                               'riscos',
                               'riscosenviron',
                               'riscospath'])

# remove modules form the set that are ok absent
missing_modules = missing_modules.difference(ok_missing_modules)

for i in missing_modules:
  print i;

rv = missing_modules.__len__()
if rv > 255:
  rv = 255

sys.exit(rv)