aboutsummaryrefslogtreecommitdiffstats
path: root/packages/meshbay-node/src/meshbay_node/indexer/cache.py
diff options
context:
space:
mode:
Diffstat (limited to 'packages/meshbay-node/src/meshbay_node/indexer/cache.py')
-rw-r--r--packages/meshbay-node/src/meshbay_node/indexer/cache.py13
1 files changed, 6 insertions, 7 deletions
diff --git a/packages/meshbay-node/src/meshbay_node/indexer/cache.py b/packages/meshbay-node/src/meshbay_node/indexer/cache.py
index 5e328ef..afa4f85 100644
--- a/packages/meshbay-node/src/meshbay_node/indexer/cache.py
+++ b/packages/meshbay-node/src/meshbay_node/indexer/cache.py
@@ -112,17 +112,16 @@ class IndexCache:
async def __aexit__(self, *_):
await self.close()
- async def lookup(self, path: str, size: int, mtime: float,
- hash_version: int = 1) -> CachedEntry | None:
+ async def lookup(self, path: str, size: int, mtime: float) -> CachedEntry | None:
"""
- A cache hit requires an EXACT match on size, mtime AND hash_version.
- A v1 cached hash won't serve a v2 lookup for the same path — the file
- is re-hashed with the new algorithm instead.
+ A cache hit requires an EXACT match on size and mtime, and serves the
+ hash under whatever hash_version it was computed: a scheme change must
+ not change the id of a file the node already knows.
"""
async with self._db.execute(
"SELECT hash, type, added_at, hash_version FROM files "
- "WHERE path = ? AND size = ? AND mtime = ? AND hash_version = ?",
- (path, size, mtime, hash_version)) as cur:
+ "WHERE path = ? AND size = ? AND mtime = ?",
+ (path, size, mtime)) as cur:
row = await cur.fetchone()
return CachedEntry(hash=row[0], type=row[1], added_at=row[2],
hash_version=row[3]) if row else None