mirror/borg
1
0
Fork 0
mirror of https://github.com/borgbackup/borg.git synced 2025-03-19 18:36:07 +00:00
Code Issues Releases Wiki Activity

mount: Load archive metadata on demand

Browse source
This commit is contained in:
Jonas Borgström 2014-03-27 22:43:06 +01:00
parent af262482de
commit 3b80688959
1 changed files with 16 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
attic/fuse.py
View file

@ -25,12 +25,18 @@ class AtticOperations(llfuse.Operations):
self.parent = {}
self.contents = defaultdict(dict)
self.default_dir = {b'mode': 0o40755, b'mtime': int(time.time() * 1e9), b'uid': os.getuid(), b'gid': os.getgid()}
self.pending_archives = {}
if archive:
self.process_archive(archive)
else:
self.parent[1] = self.allocate_inode()
self.items[1] = self.default_dir
for archive_name in manifest.archives:
archive = Archive(repository, key, manifest, archive_name)
self.process_archive(archive, [os.fsencode(archive_name)])
archive_inode = self.allocate_inode()
self.items[archive_inode] = self.default_dir
self.parent[archive_inode] = 1
self.contents[1][os.fsencode(archive_name)] = archive_inode
self.pending_archives[archive_inode] = Archive(repository, key, manifest, archive_name)
def process_archive(self, archive, prefix=[]):
"""Build fuse inode hierarcy from archive metadata
@ -135,7 +141,14 @@ class AtticOperations(llfuse.Operations):
except KeyError:
raise llfuse.FUSEError(errno.ENODATA)
def _load_pending_archive(self, inode):
# Check if this is an archive we need to load
archive = self.pending_archives.pop(inode, None)
if archive:
self.process_archive(archive, [os.fsencode(archive.name)])
def lookup(self, parent_inode, name):
self._load_pending_archive(parent_inode)
if name == b'.':
inode = parent_inode
elif name == b'..':
@ -150,6 +163,7 @@ class AtticOperations(llfuse.Operations):
return inode
def opendir(self, inode):
self._load_pending_archive(inode)
return inode
def read(self, fh, offset, size):