Module hash 

Object-id hashing, file checksums, and hash algorithm selection.

Re-exports

pub use parallel::hash_objects_parallel;

pub use parallel::index_parallelism_from_config;

pub use parallel::par_hash_with;

pub use parallel::parallel_hash_worthwhile;

pub use parallel::try_par_hash_with;

pub use parallel::try_par_hash_with_force;

pub use parallel::ParallelHashError;

pub use parallel::Parallelism;

pub use parallel::PAR_HASH_MIN_ITEMS;

pub use parallel::PAR_HASH_MIN_TOTAL_BYTES;

Structs

HashingWriter

A writer that forwards bytes to an inner sink while accumulating a checksum.

ObjectPayloadHasher

Incremental Git object-id hash (header plus payload chunks).

TrailerMismatch

Checksum at the end of bytes did not match a digest of the leading body.

Enums

Backend

Which implementation the sha1 / sha2 dependency selects for algo on this CPU.

ChecksumHasher

Incremental hasher for Git file checksums (pack/index/MIDX/commit-graph trailers).

ObjectHasher

Incremental hasher for Git’s supported object-id algorithms.

Constants

PAR_HASH_MIN_ITEMS

Minimum item count before parallel helpers use more than one thread.

PAR_HASH_MIN_TOTAL_BYTES

Minimum total payload bytes (summed over items) for parallel hashing.

Functions

backend

Report the hashing backend used for object-id digests on this CPU.

hash_object

Hash canonical Git store bytes for kind and data.

hash_objects_parallel

Hash Git objects in parallel, preserving input order.

par_hash_with

Run f over items with up to threads workers, preserving order.

parallel_hash_worthwhile

Returns true when parallel hashing is expected to beat a serial loop.

try_par_hash_with

Fallible variant of par_hash_with.

try_par_hash_with_force

Like try_par_hash_with, but ignores batch thresholds.

verify_trailer

Verify that bytes ends with the hash of the preceding body.