vbatts/llama.cpp
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Add inverse chat template metadata

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Sigbjørn Skjæret 2024-09-25 16:03:50 +02:00 • committed by GitHub
parent 1e43630218
commit ebcbc45711
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3 changed files with 15 additions and 0 deletions
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1
gguf-py/gguf/constants.py
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@ -166,6 +166,7 @@ class Keys:
CHAT_TEMPLATE = "tokenizer.chat_template"
CHAT_TEMPLATE_N = "tokenizer.chat_template.{name}"
CHAT_TEMPLATES = "tokenizer.chat_templates"
INVERSE_TEMPLATE = "tokenizer.inverse_template"
# FIM/Infill special tokens constants
PREFIX_ID = "tokenizer.ggml.prefix_token_id"
SUFFIX_ID = "tokenizer.ggml.suffix_token_id"

3
gguf-py/gguf/gguf_writer.py
View file

@ -840,6 +840,9 @@ class GGUFWriter:
self.add_string(Keys.Tokenizer.CHAT_TEMPLATE, value)
def add_inverse_template(self, value: str) -> None:
self.add_string(Keys.Tokenizer.INVERSE_TEMPLATE, value)
def add_prefix_token_id(self, id: int) -> None:
self.add_uint32(Keys.Tokenizer.PREFIX_ID, id)

11
gguf-py/gguf/vocab.py
View file

@ -21,6 +21,7 @@ class SpecialVocab:
add_special_token: dict[str, bool]
special_token_ids: dict[str, int]
chat_template: str | Sequence[Mapping[str, str]] | None
inverse_template: str | None
def __init__(
self, path: str | os.PathLike[str], load_merges: bool = False,
@ -33,6 +34,7 @@ class SpecialVocab:
self.load_merges = load_merges
self.merges = []
self.chat_template = None
self.inverse_template = None
if special_token_types is not None:
self.special_token_types = special_token_types
else:
@ -71,6 +73,10 @@ class SpecialVocab:
if not quiet:
logger.info(f'Setting chat_template to {self.chat_template}')
gw.add_chat_template(self.chat_template)
if self.inverse_template is not None:
if not quiet:
logger.info(f'Setting inverse_template to {self.inverse_template}')
gw.add_inverse_template(self.inverse_template)
def _load(self, path: Path) -> None:
self._try_load_from_tokenizer_json(path)
@ -137,6 +143,11 @@ class SpecialVocab:
self.chat_template = chat_template
else:
logger.warning(f'Bad type for chat_template field in {tokenizer_config_file!r} - ignoring')
inverse_template = tokenizer_config.get('inverse_template')
if inverse_template is None or isinstance(inverse_template, str):
self.inverse_template = inverse_template
else:
logger.warning(f'Bad type for inverse_template field in {tokenizer_config_file!r} - ignoring')
for typ in self.special_token_types:
add_entry = tokenizer_config.get(f'add_{typ}_token')
if isinstance(add_entry, bool):