3 bup_python="$(dirname "$0")/bup-python" || exit $?
4 exec "$bup_python" "$0" ${1+"$@"}
10 from bup import options
11 from bup.helpers import log
17 l.append(chr(random.randrange(0,256)))
22 bup damage [-n count] [-s maxsize] [-S seed] <filenames...>
24 WARNING: THIS COMMAND IS EXTREMELY DANGEROUS
25 n,num= number of blocks to damage
26 s,size= maximum size of each damaged block
27 percent= maximum size of each damaged block (as a percent of entire file)
28 equal spread damage evenly throughout the file
29 S,seed= random number seed (for repeatable tests)
31 o = options.Options(optspec)
32 (opt, flags, extra) = o.parse(sys.argv[1:])
35 o.fatal('filenames expected')
41 log('Damaging "%s"...\n' % name)
43 st = os.fstat(f.fileno())
45 if opt.percent or opt.size:
46 ms1 = int(float(opt.percent or 0)/100.0*size) or size
47 ms2 = opt.size or size
48 maxsize = min(ms1, ms2)
51 chunks = opt.num or 10
52 chunksize = size/chunks
53 for r in range(chunks):
54 sz = random.randrange(1, maxsize+1)
60 ofs = random.randrange(0, size - sz + 1)
61 log(' %6d bytes at %d\n' % (sz, ofs))
63 f.write(randblock(sz))