def main():
"""
Main program.
"""
usage = 'Usage: %s [OPTIONS] fortune_file' % os.path.basename(sys.argv[0])
arg_parser = CommandLineParser(usage=usage)
arg_parser.add_option('-q', '--quiet', action='store_true', dest='quiet',
help="When updating the index file, don't emit " \
"messages.")
arg_parser.add_option('-u', '--update', action='store_true', dest='update',
help='Update the index file, instead of printing a '
'fortune.')
arg_parser.add_option('-V', '--version', action='store_true',
dest='show_version', help='Show version and exit.')
arg_parser.epilogue = 'If <fortune_file> is omitted, fortune looks at the ' \
'FORTUNE_FILE environment variable for the path.'
options, args = arg_parser.parse_args(sys.argv)
if len(args) == 2:
fortune_file = args[1]
else:
try:
fortune_file = os.environ['FORTUNE_FILE']
except KeyError:
arg_parser.show_usage('Missing fortune file.')
try:
if options.show_version:
print 'fortune, version %s' % __version__
elif options.update:
make_fortune_data_file(fortune_file)
else:
sys.stdout.write(get_random_fortune(fortune_file))
except ValueError, msg:
print >> sys.stderr, msg
sys.exit(1)
