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fuse: don't keep all Archive() instances around

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they're only needed inside process_archive, and not needed in general
for pending_archives.
This commit is contained in:
Marian Beermann 2017-06-13 23:14:52 +02:00
parent 879f72f227
commit ff05895b7e
1 changed files with 12 additions and 14 deletions
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26
src/borg/fuse.py
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@ -81,22 +81,18 @@ def __init__(self, key, repository, manifest, args, cached_repo):
def _create_filesystem(self):
self._create_dir(parent=1) # first call, create root dir (inode == 1)
if self.args.location.archive:
archive = Archive(self.repository_uncached, self.key, self.manifest, self.args.location.archive,
consider_part_files=self.args.consider_part_files)
self.process_archive(archive)
self.process_archive(self.args.location.archive)
else:
archive_names = (x.name for x in self.manifest.archives.list_considering(self.args))
for name in archive_names:
archive = Archive(self.repository_uncached, self.key, self.manifest, name,
consider_part_files=self.args.consider_part_files)
for archive_name in archive_names:
if self.versions:
# process archives immediately
self.process_archive(archive)
self.process_archive(archive_name)
else:
# lazy load archives, create archive placeholder inode
archive_inode = self._create_dir(parent=1)
self.contents[1][os.fsencode(name)] = archive_inode
self.pending_archives[archive_inode] = archive
self.contents[1][os.fsencode(archive_name)] = archive_inode
self.pending_archives[archive_inode] = archive_name
def sig_info_handler(self, sig_no, stack):
logger.debug('fuse: %d inodes, %d synth inodes, %d edges (%s)',
@ -155,12 +151,14 @@ def _create_dir(self, parent):
self.parent[ino] = parent
return ino
def process_archive(self, archive, prefix=[]):
def process_archive(self, archive_name, prefix=[]):
"""Build fuse inode hierarchy from archive metadata
"""
self.file_versions = {} # for versions mode: original path -> version
unpacker = msgpack.Unpacker()
t0 = time.perf_counter()
unpacker = msgpack.Unpacker()
archive = Archive(self.repository_uncached, self.key, self.manifest, archive_name,
consider_part_files=self.args.consider_part_files)
for key, chunk in zip(archive.metadata.items, self.repository.get_many(archive.metadata.items)):
data = self.key.decrypt(key, chunk)
unpacker.feed(data)
@ -314,9 +312,9 @@ def getxattr(self, inode, name, ctx=None):
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)])
archive_name = self.pending_archives.pop(inode, None)
if archive_name:
self.process_archive(archive_name, [os.fsencode(archive_name)])
def lookup(self, parent_inode, name, ctx=None):
self._load_pending_archive(parent_inode)