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gguf_hash.py: Add sha256 #8470

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merged 3 commits into from
Jul 14, 2024
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gguf_hash.py: Add sha256 #8470

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77b0ca4
gguf_hash.py: Add sha256
mofosyne Jul 13, 2024
f2d6eb0
gguf_hash.py: rename string UUIDv5 --> uuid
mofosyne Jul 13, 2024
6cd47fd
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mofosyne Jul 14, 2024
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27 changes: 19 additions & 8 deletions gguf-py/scripts/gguf_hash.py
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Original file line number Diff line number Diff line change
Expand Up @@ -27,8 +27,9 @@

# For more information about what field.parts and field.data represent,
# please see the comments in the modify_gguf.py example.
def gguf_hash(reader: GGUFReader, filename: str, disable_progress_bar) -> None:
def gguf_hash(reader: GGUFReader, filename: str, disable_progress_bar: bool, no_layer: bool) -> None:
sha1 = hashlib.sha1()
sha256 = hashlib.sha256()
uuidv5_sha1 = hashlib.sha1()
uuidv5_sha1.update(UUID_NAMESPACE_LLAMA_CPP.bytes)

Expand All @@ -50,7 +51,7 @@ def gguf_hash(reader: GGUFReader, filename: str, disable_progress_bar) -> None:
bar = tqdm(desc="Hashing", total=total_weights, unit="weights", unit_scale=True, disable=disable_progress_bar)

# Hashing Process
for n, tensor in enumerate(reader.tensors, 1):
for tensor in reader.tensors:

# We don't need these
if tensor.name.endswith((".attention.masked_bias", ".attention.bias", ".rotary_emb.inv_freq")):
Expand All @@ -62,29 +63,39 @@ def gguf_hash(reader: GGUFReader, filename: str, disable_progress_bar) -> None:
sum_weights_in_tensor *= dim
bar.update(sum_weights_in_tensor)

sha1_layer = hashlib.sha1()
sha1_layer.update(tensor.data.data)
if not no_layer:

sha1_layer = hashlib.sha1()
sha1_layer.update(tensor.data.data)
print("sha1 {0} {1}:{2}".format(sha1_layer.hexdigest(), filename, tensor.name)) # noqa: NP100

sha256_layer = hashlib.sha256()
sha256_layer.update(tensor.data.data)
print("sha256 {0} {1}:{2}".format(sha256_layer.hexdigest(), filename, tensor.name)) # noqa: NP100

sha1.update(tensor.data.data)
sha256.update(tensor.data.data)
uuidv5_sha1.update(tensor.data.data)
print("sha1 {0} {1}:{2}".format(sha1_layer.hexdigest(), filename, tensor.name)) # noqa: NP100

# Flush Hash Progress Bar
bar.close()

# Display Hash Output
print("sha1 {0} {1}".format(sha1.hexdigest(), filename)) # noqa: NP100
print("UUIDv5 {0} {1}".format(uuid.UUID(bytes=uuidv5_sha1.digest()[:16], version=5), filename)) # noqa: NP100
print("sha1 {0} {1}".format(sha1.hexdigest(), filename)) # noqa: NP100
print("sha256 {0} {1}".format(sha256.hexdigest(), filename)) # noqa: NP100
print("uuid {0} {1}".format(uuid.UUID(bytes=uuidv5_sha1.digest()[:16], version=5), filename)) # noqa: NP100


def main() -> None:
parser = argparse.ArgumentParser(description="Dump GGUF file metadata")
parser.add_argument("model", type=str, help="GGUF format model filename")
parser.add_argument("--no-layer", action="store_true", help="exclude per layer hash")
parser.add_argument("--verbose", action="store_true", help="increase output verbosity")
parser.add_argument("--progressbar", action="store_true", help="enable progressbar")
args = parser.parse_args(None if len(sys.argv) > 1 else ["--help"])
logging.basicConfig(level=logging.DEBUG if args.verbose else logging.INFO)
reader = GGUFReader(args.model, 'r')
gguf_hash(reader, args.model, not args.progressbar)
gguf_hash(reader, args.model, not args.progressbar, args.no_layer)


if __name__ == '__main__':
Expand Down