3 bup_python="$(dirname "$0")/bup-python" || exit $?
4 exec "$bup_python" "$0" ${1+"$@"}
8 from __future__ import absolute_import, print_function
14 print('error: cannot find the python "fuse" module; please install it',
17 if not hasattr(fuse, '__version__'):
18 print('error: fuse module is too old for fuse.__version__', file=sys.stderr)
20 fuse.fuse_python_api = (0, 2)
22 if sys.version_info[0] > 2:
24 fuse_ver = fuse.__version__.split('.')
25 fuse_ver_maj = int(fuse_ver[0])
27 log('error: cannot determine the fuse major version; please report',
30 if len(fuse_ver) < 3 or fuse_ver_maj < 1:
31 print("error: fuse module can't handle binary data; please upgrade to 1.0+\n",
35 from bup import options, git, vfs, xstat
36 from bup.compat import argv_bytes, fsdecode, py_maj
37 from bup.helpers import log
38 from bup.repo import LocalRepo
41 # FIXME: self.meta and want_meta?
43 # The path handling is just wrong, but the current fuse module can't
46 class BupFs(fuse.Fuse):
47 def __init__(self, repo, verbose=0, fake_metadata=False):
48 fuse.Fuse.__init__(self)
50 self.verbose = verbose
51 self.fake_metadata = fake_metadata
53 def getattr(self, path):
54 path = argv_bytes(path)
57 log('--getattr(%r)\n' % path)
58 res = vfs.resolve(self.repo, path, want_meta=(not self.fake_metadata),
63 if self.fake_metadata:
64 item = vfs.augment_item_meta(self.repo, item, include_size=True)
66 item = vfs.ensure_item_has_metadata(self.repo, item,
69 # FIXME: do we want/need to do anything more with nlink?
70 st = fuse.Stat(st_mode=meta.mode, st_nlink=1, st_size=meta.size)
71 st.st_mode = meta.mode
72 st.st_uid = meta.uid or 0
73 st.st_gid = meta.gid or 0
74 st.st_atime = max(0, xstat.fstime_floor_secs(meta.atime))
75 st.st_mtime = max(0, xstat.fstime_floor_secs(meta.mtime))
76 st.st_ctime = max(0, xstat.fstime_floor_secs(meta.ctime))
79 def readdir(self, path, offset):
80 path = argv_bytes(path)
81 assert not offset # We don't return offsets, so offset should be unused
82 res = vfs.resolve(self.repo, path, follow=False)
83 dir_name, dir_item = res[-1]
86 yield fuse.Direntry('..')
87 # FIXME: make sure want_meta=False is being completely respected
88 for ent_name, ent_item in vfs.contents(repo, dir_item, want_meta=False):
89 fusename = fsdecode(ent_name.replace(b'/', b'-'))
90 yield fuse.Direntry(fusename)
92 def readlink(self, path):
93 path = argv_bytes(path)
95 log('--readlink(%r)\n' % path)
96 res = vfs.resolve(self.repo, path, follow=False)
100 return fsdecode(vfs.readlink(repo, item))
102 def open(self, path, flags):
103 path = argv_bytes(path)
105 log('--open(%r)\n' % path)
106 res = vfs.resolve(self.repo, path, follow=False)
110 accmode = os.O_RDONLY | os.O_WRONLY | os.O_RDWR
111 if (flags & accmode) != os.O_RDONLY:
113 # Return None since read doesn't need the file atm...
114 # If we *do* return the file, it'll show up as the last argument
115 #return vfs.fopen(repo, item)
117 def read(self, path, size, offset):
118 path = argv_bytes(path)
120 log('--read(%r)\n' % path)
121 res = vfs.resolve(self.repo, path, follow=False)
125 with vfs.fopen(repo, item) as f:
131 bup fuse [-d] [-f] <mountpoint>
133 f,foreground run in foreground
134 d,debug run in the foreground and display FUSE debug information
135 o,allow-other allow other users to access the filesystem
136 meta report original metadata for paths when available
137 v,verbose increase log output (can be used more than once)
139 o = options.Options(optspec)
140 opt, flags, extra = o.parse(sys.argv[1:])
144 # Set stderr to be line buffered, even if it's not connected to the console
145 # so that we'll be able to see diagnostics in a timely fashion.
146 errfd = sys.stderr.fileno()
148 sys.stderr = os.fdopen(errfd, 'w', 1)
151 o.fatal('only one mount point argument expected')
153 git.check_repo_or_die()
155 f = BupFs(repo=repo, verbose=opt.verbose, fake_metadata=(not opt.meta))
157 # This is likely wrong, but the fuse module doesn't currently accept bytes
158 f.fuse_args.mountpoint = extra[0]
161 f.fuse_args.add('debug')
163 f.fuse_args.setmod('foreground')
164 f.multithreaded = False
166 f.fuse_args.add('allow_other')