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#!/usr/bin/env python
import sys
from bup import options, _helpers
from bup.helpers import *
optspec = """
bup random [-S seed] <numbytes>
--
S,seed= optional random number seed [1]
f,force print random data to stdout even if it's a tty
"""
o = options.Options('bup random', optspec)
(opt, flags, extra) = o.parse(sys.argv[1:])
if len(extra) != 1:
o.fatal("exactly one argument expected")
total = parse_num(extra[0])
handle_ctrl_c()
if opt.force or (not os.isatty(1) and
not atoi(os.environ.get('BUP_FORCE_TTY')) & 1):
_helpers.write_random(sys.stdout.fileno(), total, opt.seed)
else:
log('error: not writing binary data to a terminal. Use -f to force.\n')
sys.exit(1)
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