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