pub fn header_len(stored: &[u8], hash: GitHashKind) -> Result<usize>Expand description
How many bytes of a stored entry are header — everything before the compressed payload.
For a delta that includes the back-reference: the OFS_DELTA distance or the
REF_DELTA oid. This is what a caller strips to get the payload, and it is
derived by re-reading the grammar rather than remembered, so it cannot drift
from what the walk parses.