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@@ -122,7 +122,7 @@ class FuseBackend:
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self.inodes.pop(ino, None)
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else:
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# Remove path from the item dict before packing to save memory.
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- # The path is already encoded in the DirEntry tree structure
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+ # The path is already encoded in the DirEntry tree structure.
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item_dict = item.as_dict()
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item_dict.pop("path", None)
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self.inodes[ino] = msgpack.packb(item_dict)
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@@ -233,7 +233,7 @@ class FuseBackend:
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target_path = os.fsencode(link_target)
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target_node = self._find_node_from_root(root_node, target_path)
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if target_node:
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- # Reuse ID and Item to share inode and attributes
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+ # Reuse ino and item from target
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node.ino = target_node.ino
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# node.item = target_node.item # implicitly shared via ID
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item = self.get_inode(node.ino)
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@@ -315,7 +315,7 @@ class FuseBackend:
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target_versioned = self._make_versioned_name(link_leaf, link_version)
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if target_intermediate.has_child(target_versioned):
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original_node = target_intermediate.get_child(target_versioned)
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- # Create new node but reuse the ID and item from original
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+ # Create new node but reuse the ino and item from original
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item = self.get_inode(original_node.ino)
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file_node = self._create_node(item, parent=intermediate_node)
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file_node.ino = original_node.ino
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@@ -337,6 +337,8 @@ class FuseBackend:
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if "chunks" not in item:
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return None
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+ # note: using sha256 here because nowadays it is often hw accelerated.
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+ # shortening the hashes to 16 bytes to save some memory.
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file_id = hashlib.sha256(path).digest()[:16]
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current_version, previous_id = self.versions_index.get(file_id, (0, None))
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@@ -421,7 +423,6 @@ class FuseBackend:
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)
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st["st_rdev"] = item.get("rdev", 0)
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st["st_size"] = item.get_size()
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- # Convert nanoseconds to seconds for macOS compatibility
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if getattr(self, "use_ns", False):
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st["st_mtime"] = item.mtime
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st["st_atime"] = item.get("atime", item.mtime)
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@@ -597,8 +598,6 @@ class borgfs(mfuse.Operations, FuseBackend):
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debug_log(f"read(path={path!r}, size={size}, offset={offset}, fh={fh})")
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node = self._get_node_from_handle(fh)
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if node is None:
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- # Fallback if fh is invalid or not found, try path?
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- # But read should be fast.
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raise mfuse.FuseOSError(errno.EBADF)
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item = self.get_inode(node.ino)
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Thomas Waldmann