mirror of
https://github.com/ggerganov/llama.cpp.git
synced 2024-10-31 23:28:51 +01:00
241 lines
10 KiB
Python
Executable File
241 lines
10 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
import logging
|
|
import argparse
|
|
import os
|
|
import sys
|
|
import json
|
|
from pathlib import Path
|
|
|
|
import numpy as np
|
|
from tqdm import tqdm
|
|
from typing import Any, Sequence, NamedTuple
|
|
|
|
# Necessary to load the local gguf package
|
|
if "NO_LOCAL_GGUF" not in os.environ and (Path(__file__).parent.parent.parent / 'gguf-py').exists():
|
|
sys.path.insert(0, str(Path(__file__).parent.parent))
|
|
|
|
import gguf
|
|
|
|
logger = logging.getLogger("gguf-new-metadata")
|
|
|
|
|
|
class MetadataDetails(NamedTuple):
|
|
type: gguf.GGUFValueType
|
|
value: Any
|
|
description: str = ''
|
|
|
|
|
|
def get_byteorder(reader: gguf.GGUFReader) -> gguf.GGUFEndian:
|
|
if np.uint32(1) == np.uint32(1).newbyteorder("<"):
|
|
# Host is little endian
|
|
host_endian = gguf.GGUFEndian.LITTLE
|
|
swapped_endian = gguf.GGUFEndian.BIG
|
|
else:
|
|
# Sorry PDP or other weird systems that don't use BE or LE.
|
|
host_endian = gguf.GGUFEndian.BIG
|
|
swapped_endian = gguf.GGUFEndian.LITTLE
|
|
|
|
if reader.byte_order == "S":
|
|
return swapped_endian
|
|
else:
|
|
return host_endian
|
|
|
|
|
|
def decode_field(field: gguf.ReaderField | None) -> Any:
|
|
if field and field.types:
|
|
main_type = field.types[0]
|
|
|
|
if main_type == gguf.GGUFValueType.ARRAY:
|
|
sub_type = field.types[-1]
|
|
|
|
if sub_type == gguf.GGUFValueType.STRING:
|
|
return [str(bytes(field.parts[idx]), encoding='utf-8') for idx in field.data]
|
|
else:
|
|
return [pv for idx in field.data for pv in field.parts[idx].tolist()]
|
|
if main_type == gguf.GGUFValueType.STRING:
|
|
return str(bytes(field.parts[-1]), encoding='utf-8')
|
|
else:
|
|
return field.parts[-1][0]
|
|
|
|
return None
|
|
|
|
|
|
def get_field_data(reader: gguf.GGUFReader, key: str) -> Any:
|
|
field = reader.get_field(key)
|
|
|
|
return decode_field(field)
|
|
|
|
|
|
def find_token(token_list: Sequence[int], token: str) -> Sequence[int]:
|
|
token_ids = [index for index, value in enumerate(token_list) if value == token]
|
|
|
|
if len(token_ids) == 0:
|
|
raise LookupError(f'Unable to find "{token}" in token list!')
|
|
|
|
return token_ids
|
|
|
|
|
|
def copy_with_new_metadata(reader: gguf.GGUFReader, writer: gguf.GGUFWriter, new_metadata: dict[str, MetadataDetails], remove_metadata: Sequence[str]) -> None:
|
|
for field in reader.fields.values():
|
|
# Suppress virtual fields and fields written by GGUFWriter
|
|
if field.name == gguf.Keys.General.ARCHITECTURE or field.name.startswith('GGUF.'):
|
|
logger.debug(f'Suppressing {field.name}')
|
|
continue
|
|
|
|
# Skip old chat templates if we have new ones
|
|
if field.name.startswith(gguf.Keys.Tokenizer.CHAT_TEMPLATE) and gguf.Keys.Tokenizer.CHAT_TEMPLATE in new_metadata:
|
|
logger.debug(f'Skipping {field.name}')
|
|
continue
|
|
|
|
if field.name in remove_metadata:
|
|
logger.debug(f'Removing {field.name}')
|
|
continue
|
|
|
|
old_val = MetadataDetails(field.types[0], decode_field(field))
|
|
val = new_metadata.get(field.name, old_val)
|
|
|
|
if field.name in new_metadata:
|
|
logger.debug(f'Modifying {field.name}: "{old_val.value}" -> "{val.value}" {val.description}')
|
|
del new_metadata[field.name]
|
|
elif val.value is not None:
|
|
logger.debug(f'Copying {field.name}')
|
|
|
|
if val.value is not None:
|
|
writer.add_key(field.name)
|
|
writer.add_val(val.value, val.type)
|
|
|
|
if gguf.Keys.Tokenizer.CHAT_TEMPLATE in new_metadata:
|
|
logger.debug('Adding chat template(s)')
|
|
writer.add_chat_template(new_metadata[gguf.Keys.Tokenizer.CHAT_TEMPLATE].value)
|
|
del new_metadata[gguf.Keys.Tokenizer.CHAT_TEMPLATE]
|
|
|
|
for key, val in new_metadata.items():
|
|
logger.debug(f'Adding {key}: "{val.value}" {val.description}')
|
|
writer.add_key(key)
|
|
writer.add_val(val.value, val.type)
|
|
|
|
total_bytes = 0
|
|
|
|
for tensor in reader.tensors:
|
|
total_bytes += tensor.n_bytes
|
|
writer.add_tensor_info(tensor.name, tensor.data.shape, tensor.data.dtype, tensor.data.nbytes, tensor.tensor_type)
|
|
|
|
bar = tqdm(desc="Writing", total=total_bytes, unit="byte", unit_scale=True)
|
|
|
|
writer.write_header_to_file()
|
|
writer.write_kv_data_to_file()
|
|
writer.write_ti_data_to_file()
|
|
|
|
for tensor in reader.tensors:
|
|
writer.write_tensor_data(tensor.data)
|
|
bar.update(tensor.n_bytes)
|
|
|
|
writer.close()
|
|
|
|
|
|
def main() -> None:
|
|
tokenizer_metadata = (getattr(gguf.Keys.Tokenizer, n) for n in gguf.Keys.Tokenizer.__dict__.keys() if not n.startswith('_'))
|
|
token_names = dict((n.split('.')[-1][:-len('_token_id')], n) for n in tokenizer_metadata if n.endswith('_token_id'))
|
|
|
|
parser = argparse.ArgumentParser(description="Make a copy of a GGUF file with new metadata")
|
|
parser.add_argument("input", type=Path, help="GGUF format model input filename")
|
|
parser.add_argument("output", type=Path, help="GGUF format model output filename")
|
|
parser.add_argument("--general-name", type=str, help="The models general.name", metavar='"name"')
|
|
parser.add_argument("--general-description", type=str, help="The models general.description", metavar='"Description ..."')
|
|
parser.add_argument("--chat-template", type=str, help="Chat template string (or JSON string containing templates)", metavar='"{% ... %} ..."')
|
|
parser.add_argument("--chat-template-config", type=Path, help="Config file containing chat template(s)", metavar='tokenizer_config.json')
|
|
parser.add_argument("--remove-metadata", action="append", type=str, help="Remove metadata (by key name) from output model", metavar='general.url')
|
|
parser.add_argument("--special-token", action="append", type=str, help="Special token by value", nargs=2, metavar=(' | '.join(token_names.keys()), '"<token>"'))
|
|
parser.add_argument("--special-token-by-id", action="append", type=str, help="Special token by id", nargs=2, metavar=(' | '.join(token_names.keys()), '0'))
|
|
parser.add_argument("--force", action="store_true", help="Bypass warnings without confirmation")
|
|
parser.add_argument("--verbose", action="store_true", help="Increase output verbosity")
|
|
args = parser.parse_args(None if len(sys.argv) > 2 else ["--help"])
|
|
|
|
logging.basicConfig(level=logging.DEBUG if args.verbose else logging.INFO)
|
|
|
|
new_metadata = {}
|
|
remove_metadata = args.remove_metadata or []
|
|
|
|
if args.general_name:
|
|
new_metadata[gguf.Keys.General.NAME] = MetadataDetails(gguf.GGUFValueType.STRING, args.general_name)
|
|
|
|
if args.general_description:
|
|
new_metadata[gguf.Keys.General.DESCRIPTION] = MetadataDetails(gguf.GGUFValueType.STRING, args.general_description)
|
|
|
|
if args.chat_template:
|
|
new_metadata[gguf.Keys.Tokenizer.CHAT_TEMPLATE] = MetadataDetails(gguf.GGUFValueType.STRING, json.loads(args.chat_template) if args.chat_template.startswith('[') else args.chat_template)
|
|
|
|
if args.chat_template_config:
|
|
with open(args.chat_template_config, 'r') as fp:
|
|
config = json.load(fp)
|
|
template = config.get('chat_template')
|
|
if template:
|
|
new_metadata[gguf.Keys.Tokenizer.CHAT_TEMPLATE] = MetadataDetails(gguf.GGUFValueType.STRING, template)
|
|
|
|
if remove_metadata:
|
|
logger.warning('*** Warning *** Warning *** Warning **')
|
|
logger.warning('* Most metadata is required for a fully functional GGUF file,')
|
|
logger.warning('* removing crucial metadata may result in a corrupt output file!')
|
|
|
|
if not args.force:
|
|
logger.warning('* Enter exactly YES if you are positive you want to proceed:')
|
|
response = input('YES, I am sure> ')
|
|
if response != 'YES':
|
|
logger.info("You didn't enter YES. Okay then, see ya!")
|
|
sys.exit(0)
|
|
|
|
logger.info(f'* Loading: {args.input}')
|
|
reader = gguf.GGUFReader(args.input, 'r')
|
|
|
|
arch = get_field_data(reader, gguf.Keys.General.ARCHITECTURE)
|
|
endianess = get_byteorder(reader)
|
|
|
|
token_list = get_field_data(reader, gguf.Keys.Tokenizer.LIST) or []
|
|
|
|
for name, token in args.special_token or []:
|
|
if name not in token_names:
|
|
logger.warning(f'Unknown special token "{name}", ignoring...')
|
|
else:
|
|
ids = find_token(token_list, token)
|
|
new_metadata[token_names[name]] = MetadataDetails(gguf.GGUFValueType.UINT32, ids[0], f'= {token}')
|
|
|
|
if len(ids) > 1:
|
|
logger.warning(f'Multiple "{token}" tokens found, choosing ID {ids[0]}, use --special-token-by-id if you want another:')
|
|
logger.warning(', '.join(str(i) for i in ids))
|
|
|
|
for name, id_string in args.special_token_by_id or []:
|
|
if name not in token_names:
|
|
logger.warning(f'Unknown special token "{name}", ignoring...')
|
|
elif not id_string.isdecimal():
|
|
raise LookupError(f'Token ID "{id_string}" is not a valid ID!')
|
|
else:
|
|
id_int = int(id_string)
|
|
|
|
if id_int >= 0 and id_int < len(token_list):
|
|
new_metadata[token_names[name]] = MetadataDetails(gguf.GGUFValueType.UINT32, id_int, f'= {token_list[id_int]}')
|
|
else:
|
|
raise LookupError(f'Token ID {id_int} is not within token list!')
|
|
|
|
if os.path.isfile(args.output) and not args.force:
|
|
logger.warning('*** Warning *** Warning *** Warning **')
|
|
logger.warning(f'* The "{args.output}" GGUF file already exists, it will be overwritten!')
|
|
logger.warning('* Enter exactly YES if you are positive you want to proceed:')
|
|
response = input('YES, I am sure> ')
|
|
if response != 'YES':
|
|
logger.info("You didn't enter YES. Okay then, see ya!")
|
|
sys.exit(0)
|
|
|
|
logger.info(f'* Writing: {args.output}')
|
|
writer = gguf.GGUFWriter(args.output, arch=arch, endianess=endianess)
|
|
|
|
alignment = get_field_data(reader, gguf.Keys.General.ALIGNMENT)
|
|
if alignment is not None:
|
|
logger.debug(f'Setting custom alignment: {alignment}')
|
|
writer.data_alignment = alignment
|
|
|
|
copy_with_new_metadata(reader, writer, new_metadata, remove_metadata)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|