3 # https://sourceware.org/bugzilla/show_bug.cgi?id=26034
4 export "BUP_ARGV_0"="$0"
7 export "BUP_ARGV_${arg_i}"="$arg"
11 # Here to end of preamble replaced during install
12 bup_python="$(dirname "$0")/bup-python" || exit $?
13 exec "$bup_python" "$0"
17 from __future__ import absolute_import, print_function
23 print('error: cannot find the python "fuse" module; please install it',
26 if not hasattr(fuse, '__version__'):
27 print('error: fuse module is too old for fuse.__version__', file=sys.stderr)
29 fuse.fuse_python_api = (0, 2)
31 if sys.version_info[0] > 2:
33 fuse_ver = fuse.__version__.split('.')
34 fuse_ver_maj = int(fuse_ver[0])
36 log('error: cannot determine the fuse major version; please report',
39 if len(fuse_ver) < 3 or fuse_ver_maj < 1:
40 print("error: fuse module can't handle binary data; please upgrade to 1.0+\n",
44 from bup import compat, options, git, vfs, xstat
45 from bup.compat import argv_bytes, fsdecode, py_maj
46 from bup.helpers import log
47 from bup.repo import LocalRepo
50 # FIXME: self.meta and want_meta?
52 # The path handling is just wrong, but the current fuse module can't
55 class BupFs(fuse.Fuse):
56 def __init__(self, repo, verbose=0, fake_metadata=False):
57 fuse.Fuse.__init__(self)
59 self.verbose = verbose
60 self.fake_metadata = fake_metadata
62 def getattr(self, path):
63 path = argv_bytes(path)
66 log('--getattr(%r)\n' % path)
67 res = vfs.resolve(self.repo, path, want_meta=(not self.fake_metadata),
72 if self.fake_metadata:
73 item = vfs.augment_item_meta(self.repo, item, include_size=True)
75 item = vfs.ensure_item_has_metadata(self.repo, item,
78 # FIXME: do we want/need to do anything more with nlink?
79 st = fuse.Stat(st_mode=meta.mode, st_nlink=1, st_size=meta.size)
80 st.st_mode = meta.mode
81 st.st_uid = meta.uid or 0
82 st.st_gid = meta.gid or 0
83 st.st_atime = max(0, xstat.fstime_floor_secs(meta.atime))
84 st.st_mtime = max(0, xstat.fstime_floor_secs(meta.mtime))
85 st.st_ctime = max(0, xstat.fstime_floor_secs(meta.ctime))
88 def readdir(self, path, offset):
89 path = argv_bytes(path)
90 assert not offset # We don't return offsets, so offset should be unused
91 res = vfs.resolve(self.repo, path, follow=False)
92 dir_name, dir_item = res[-1]
95 yield fuse.Direntry('..')
96 # FIXME: make sure want_meta=False is being completely respected
97 for ent_name, ent_item in vfs.contents(repo, dir_item, want_meta=False):
98 fusename = fsdecode(ent_name.replace(b'/', b'-'))
99 yield fuse.Direntry(fusename)
101 def readlink(self, path):
102 path = argv_bytes(path)
104 log('--readlink(%r)\n' % path)
105 res = vfs.resolve(self.repo, path, follow=False)
109 return fsdecode(vfs.readlink(repo, item))
111 def open(self, path, flags):
112 path = argv_bytes(path)
114 log('--open(%r)\n' % path)
115 res = vfs.resolve(self.repo, path, follow=False)
119 accmode = os.O_RDONLY | os.O_WRONLY | os.O_RDWR
120 if (flags & accmode) != os.O_RDONLY:
122 # Return None since read doesn't need the file atm...
123 # If we *do* return the file, it'll show up as the last argument
124 #return vfs.fopen(repo, item)
126 def read(self, path, size, offset):
127 path = argv_bytes(path)
129 log('--read(%r)\n' % path)
130 res = vfs.resolve(self.repo, path, follow=False)
134 with vfs.fopen(repo, item) as f:
140 bup fuse [-d] [-f] <mountpoint>
142 f,foreground run in foreground
143 d,debug run in the foreground and display FUSE debug information
144 o,allow-other allow other users to access the filesystem
145 meta report original metadata for paths when available
146 v,verbose increase log output (can be used more than once)
148 o = options.Options(optspec)
149 opt, flags, extra = o.parse(compat.argv[1:])
153 # Set stderr to be line buffered, even if it's not connected to the console
154 # so that we'll be able to see diagnostics in a timely fashion.
155 errfd = sys.stderr.fileno()
157 sys.stderr = os.fdopen(errfd, 'w', 1)
160 o.fatal('only one mount point argument expected')
162 git.check_repo_or_die()
164 f = BupFs(repo=repo, verbose=opt.verbose, fake_metadata=(not opt.meta))
166 # This is likely wrong, but the fuse module doesn't currently accept bytes
167 f.fuse_args.mountpoint = extra[0]
170 f.fuse_args.add('debug')
172 f.fuse_args.setmod('foreground')
173 f.multithreaded = False
175 f.fuse_args.add('allow_other')