Add comments.

chia/_tests/core/data_layer/test_data_store.py

@@ -1346,6 +1346,7 @@ async def test_data_server_files(
         counter = 0
         num_repeats = 2
 
+        # Repeat twice to guarantee there will be hashes from the old file format
         for _ in range(num_repeats):
             for batch in range(num_batches):
                 changelist: list[dict[str, Any]] = []

chia/data_layer/data_layer_util.py

@@ -49,6 +49,7 @@ def key_hash(key: bytes) -> bytes32:
     return bytes32(sha256(b"\1" + key).digest())
 
 
+# TODO: allow Optional[bytes32] for `node_hash` and resolve the filenames here
 def get_full_tree_filename(store_id: bytes32, node_hash: bytes32, generation: int, group_by_store: bool = False) -> str:
     if group_by_store:
         return f"{store_id}/{node_hash}-full-{generation}-v1.0.dat"

chia/data_layer/data_store.py

@@ -237,6 +237,7 @@ async def insert_into_data_store_from_file(
                 if node_hash not in internal_nodes and node_hash not in terminal_nodes:
                     missing_hashes.append(node_hash)
 
+        # TODO: consider adding transactions aroud this code
         root = await self.get_tree_root(store_id=store_id)
         latest_blob = await self.get_merkle_blob(root.node_hash, read_only=True)
         known_hashes: dict[bytes32, TreeIndex] = {}