3 bup_python="$(dirname "$0")/bup-python" || exit $?
4 exec "$bup_python" "$0" ${1+"$@"}
7 import sys, os, glob, subprocess
8 from bup import options, git
9 from bup.helpers import *
12 nullf = open('/dev/null')
19 # at least in python 2.5, using "stdout=2" or "stdout=sys.stderr" below
20 # doesn't actually work, because subprocess closes fd #2 right before
21 # execing for some reason. So we work around it by duplicating the fd
23 fd = os.dup(2) # copy stderr
25 p = subprocess.Popen(argv, stdout=fd, close_fds=False)
34 p = subprocess.Popen(['par2', '--help'],
35 stdout=nullf, stderr=nullf, stdin=nullf)
38 log('fsck: warning: par2 not found; disabling recovery features.\n')
43 if opt.verbose >= lvl:
51 def par2_generate(base):
52 return run(['par2', 'create', '-n1', '-c200'] + parv(2)
53 + ['--', base, base+'.pack', base+'.idx'])
55 def par2_verify(base):
56 return run(['par2', 'verify'] + parv(3) + ['--', base])
58 def par2_repair(base):
59 return run(['par2', 'repair'] + parv(2) + ['--', base])
61 def quick_verify(base):
62 f = open(base + '.pack', 'rb')
65 assert(len(wantsum) == 20)
68 for b in chunkyreader(f, os.fstat(f.fileno()).st_size - 20):
70 if sum.digest() != wantsum:
71 raise ValueError('expected %r, got %r' % (wantsum.encode('hex'),
80 debug('error: %s\n' % e)
84 return run(['git', 'verify-pack', '--', base])
87 def do_pack(base, last, par2_exists):
89 if par2_ok and par2_exists and (opt.repair or not opt.generate):
90 vresult = par2_verify(base)
93 rresult = par2_repair(base)
95 action_result = 'failed'
96 log('%s par2 repair: failed (%d)\n' % (last, rresult))
99 action_result = 'repaired'
100 log('%s par2 repair: succeeded (0)\n' % last)
103 action_result = 'failed'
104 log('%s par2 verify: failed (%d)\n' % (last, vresult))
108 elif not opt.generate or (par2_ok and not par2_exists):
109 gresult = git_verify(base)
111 action_result = 'failed'
112 log('%s git verify: failed (%d)\n' % (last, gresult))
115 if par2_ok and opt.generate:
116 presult = par2_generate(base)
118 action_result = 'failed'
119 log('%s par2 create: failed (%d)\n' % (last, presult))
122 action_result = 'generated'
126 assert(opt.generate and (not par2_ok or par2_exists))
127 action_result = 'exists' if par2_exists else 'skipped'
129 print last, action_result
134 bup fsck [options...] [filenames...]
136 r,repair attempt to repair errors using par2 (dangerous!)
137 g,generate generate auto-repair information using par2
138 v,verbose increase verbosity (can be used more than once)
139 quick just check pack sha1sum, don't use git verify-pack
140 j,jobs= run 'n' jobs in parallel
141 par2-ok immediately return 0 if par2 is ok, 1 if not
142 disable-par2 ignore par2 even if it is available
144 o = options.Options(optspec)
145 (opt, flags, extra) = o.parse(sys.argv[1:])
150 sys.exit(0) # 'true' in sh
156 git.check_repo_or_die()
159 debug('fsck: No filenames given: checking all packs.\n')
160 extra = glob.glob(git.repo('objects/pack/*.pack'))
166 if name.endswith('.pack'):
168 elif name.endswith('.idx'):
170 elif name.endswith('.par2'):
172 elif os.path.exists(name + '.pack'):
175 raise Exception('%s is not a pack file!' % name)
176 (dir,last) = os.path.split(base)
177 par2_exists = os.path.exists(base + '.par2')
178 if par2_exists and os.stat(base + '.par2').st_size == 0:
181 debug('fsck: checking %s (%s)\n'
182 % (last, par2_ok and par2_exists and 'par2' or 'git'))
184 progress('fsck (%d/%d)\r' % (count, len(extra)))
187 nc = do_pack(base, last, par2_exists)
191 while len(outstanding) >= opt.jobs:
194 if pid in outstanding:
203 sys.exit(do_pack(base, last, par2_exists))
205 log('exception: %r\n' % e)
208 while len(outstanding):
211 if pid in outstanding:
216 progress('fsck (%d/%d)\r' % (count, len(extra)))
219 debug('fsck done. \n')