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llama.cpp/gguf-py/gguf/metadata.py
Xuan Son Nguyen 1e6f6554aa
server : add lora hotswap endpoint (WIP) (#8857) 
* server : add lora hotswap endpoint

* handle lora_no_apply

* fix build

* updae docs

* clean up struct def

* fix build

* add LoRA test

* fix style
2024-08-06 17:33:39 +02:00

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from __future__ import annotations
import re
import json
import yaml
import logging
from pathlib import Path
from typing import Any, Literal, Optional
from dataclasses import dataclass
from .constants import Keys
import gguf
logger = logging.getLogger("metadata")
@dataclass
class Metadata:
# Authorship Metadata to be written to GGUF KV Store
name: Optional[str] = None
author: Optional[str] = None
version: Optional[str] = None
organization: Optional[str] = None
finetune: Optional[str] = None
basename: Optional[str] = None
description: Optional[str] = None
quantized_by: Optional[str] = None
size_label: Optional[str] = None
url: Optional[str] = None
doi: Optional[str] = None
uuid: Optional[str] = None
repo_url: Optional[str] = None
source_url: Optional[str] = None
source_doi: Optional[str] = None
source_uuid: Optional[str] = None
source_repo_url: Optional[str] = None
license: Optional[str] = None
license_name: Optional[str] = None
license_link: Optional[str] = None
base_models: Optional[list[dict]] = None
tags: Optional[list[str]] = None
languages: Optional[list[str]] = None
datasets: Optional[list[str]] = None
@staticmethod
def load(metadata_override_path: Optional[Path] = None, model_path: Optional[Path] = None, model_name: Optional[str] = None, total_params: int = 0) -> Metadata:
# This grabs as many contextual authorship metadata as possible from the model repository
# making any conversion as required to match the gguf kv store metadata format
# as well as giving users the ability to override any authorship metadata that may be incorrect
# Create a new Metadata instance
metadata = Metadata()
model_card = Metadata.load_model_card(model_path)
hf_params = Metadata.load_hf_parameters(model_path)
# TODO: load adapter_config.json when possible, it usually contains the base model of the LoRA adapter
# heuristics
metadata = Metadata.apply_metadata_heuristic(metadata, model_card, hf_params, model_path, total_params)
# Metadata Override File Provided
# This is based on LLM_KV_NAMES mapping in llama.cpp
metadata_override = Metadata.load_metadata_override(metadata_override_path)
metadata.name = metadata_override.get(Keys.General.NAME, metadata.name)
metadata.author = metadata_override.get(Keys.General.AUTHOR, metadata.author)
metadata.version = metadata_override.get(Keys.General.VERSION, metadata.version)
metadata.organization = metadata_override.get(Keys.General.ORGANIZATION, metadata.organization)
metadata.finetune = metadata_override.get(Keys.General.FINETUNE, metadata.finetune)
metadata.basename = metadata_override.get(Keys.General.BASENAME, metadata.basename)
metadata.description = metadata_override.get(Keys.General.DESCRIPTION, metadata.description)
metadata.quantized_by = metadata_override.get(Keys.General.QUANTIZED_BY, metadata.quantized_by)
metadata.size_label = metadata_override.get(Keys.General.SIZE_LABEL, metadata.size_label)
metadata.license_name = metadata_override.get(Keys.General.LICENSE_NAME, metadata.license_name)
metadata.license_link = metadata_override.get(Keys.General.LICENSE_LINK, metadata.license_link)
metadata.url = metadata_override.get(Keys.General.URL, metadata.url)
metadata.doi = metadata_override.get(Keys.General.DOI, metadata.doi)
metadata.uuid = metadata_override.get(Keys.General.UUID, metadata.uuid)
metadata.repo_url = metadata_override.get(Keys.General.REPO_URL, metadata.repo_url)
metadata.source_url = metadata_override.get(Keys.General.SOURCE_URL, metadata.source_url)
metadata.source_doi = metadata_override.get(Keys.General.SOURCE_DOI, metadata.source_doi)
metadata.source_uuid = metadata_override.get(Keys.General.SOURCE_UUID, metadata.source_uuid)
metadata.source_repo_url = metadata_override.get(Keys.General.SOURCE_REPO_URL, metadata.source_repo_url)
# Base Models is received here as an array of models
metadata.base_models = metadata_override.get("general.base_models", metadata.base_models)
metadata.tags = metadata_override.get(Keys.General.TAGS, metadata.tags)
metadata.languages = metadata_override.get(Keys.General.LANGUAGES, metadata.languages)
metadata.datasets = metadata_override.get(Keys.General.DATASETS, metadata.datasets)
# Direct Metadata Override (via direct cli argument)
if model_name is not None:
metadata.name = model_name
return metadata
@staticmethod
def load_metadata_override(metadata_override_path: Optional[Path] = None) -> dict[str, Any]:
if metadata_override_path is None or not metadata_override_path.is_file():
return {}
with open(metadata_override_path, "r", encoding="utf-8") as f:
return json.load(f)
@staticmethod
def load_model_card(model_path: Optional[Path] = None) -> dict[str, Any]:
if model_path is None or not model_path.is_dir():
return {}
model_card_path = model_path / "README.md"
if not model_card_path.is_file():
return {}
# The model card metadata is assumed to always be in YAML
# ref: https://github.com/huggingface/transformers/blob/a5c642fe7a1f25d3bdcd76991443ba6ff7ee34b2/src/transformers/modelcard.py#L468-L473
with open(model_card_path, "r", encoding="utf-8") as f:
if f.readline() == "---\n":
raw = f.read().partition("---\n")[0]
data = yaml.safe_load(raw)
if isinstance(data, dict):
return data
else:
logger.error(f"while reading YAML model card frontmatter, data is {type(data)} instead of dict")
return {}
else:
return {}
@staticmethod
def load_hf_parameters(model_path: Optional[Path] = None) -> dict[str, Any]:
if model_path is None or not model_path.is_dir():
return {}
config_path = model_path / "config.json"
if not config_path.is_file():
return {}
with open(config_path, "r", encoding="utf-8") as f:
return json.load(f)
@staticmethod
def id_to_title(string):
# Convert capitalization into title form unless acronym or version number
return ' '.join([w.title() if w.islower() and not re.match(r'^(v\d+(?:\.\d+)*|\d.*)$', w) else w for w in string.strip().replace('-', ' ').split()])
@staticmethod
def get_model_id_components(model_id: Optional[str] = None, total_params: int = 0) -> tuple[str | None, str | None, str | None, str | None, str | None, str | None]:
# Huggingface often store model id as '<org>/<model name>'
# so let's parse it and apply some heuristics if possible for model name components
if model_id is None:
# model ID missing
return None, None, None, None, None, None
if ' ' in model_id:
# model ID is actually a normal human sentence
# which means its most likely a normal model name only
# not part of the hugging face naming standard, but whatever
return model_id, None, None, None, None, None
if '/' in model_id:
# model ID (huggingface style)
org_component, model_full_name_component = model_id.split('/', 1)
else:
# model ID but missing org components
org_component, model_full_name_component = None, model_id
# Check if we erroneously matched against './' or '../' etc...
if org_component is not None and len(org_component) > 0 and org_component[0] == '.':
org_component = None
name_parts: list[str] = model_full_name_component.split('-')
# Remove empty parts
for i in reversed(range(len(name_parts))):
if len(name_parts[i]) == 0:
del name_parts[i]
name_types: list[
set[Literal["basename", "size_label", "finetune", "version", "type"]]
] = [set() for _ in name_parts]
# Annotate the name
for i, part in enumerate(name_parts):
# Version
if re.fullmatch(r'(v|iter)?\d+([.]\d+)*', part, re.IGNORECASE):
name_types[i].add("version")
# Quant type (should not be there for base models, but still annotated)
elif re.fullmatch(r'i?q\d(_\w)*|b?fp?(16|32)', part, re.IGNORECASE):
name_types[i].add("type")
name_parts[i] = part.upper()
# Model size
elif i > 0 and re.fullmatch(r'(([A]|\d+[x])?\d+([._]\d+)?[KMBT][\d]?|small|mini|medium|large|x?xl)', part, re.IGNORECASE):
part = part.replace("_", ".")
# Handle weird bloom-7b1 notation
if part[-1].isdecimal():
part = part[:-2] + "." + part[-1] + part[-2]
# Normalize the size suffixes
if len(part) > 1 and part[-2].isdecimal():
if part[-1] in "kmbt":
part = part[:-1] + part[-1].upper()
if total_params != 0:
try:
label_params = float(part[:-1]) * pow(1000, " KMBT".find(part[-1]))
# Only use it as a size label if it's close or bigger than the model size
# Note that LoRA adapters don't necessarily include all layers,
# so this is why bigger label sizes are accepted.
# Do not use the size label when it's smaller than 1/8 of the model size
if (total_params < 0 and label_params < abs(total_params) // 8) or (
# Check both directions when the current model isn't a LoRA adapter
total_params > 0 and abs(label_params - total_params) > 7 * total_params // 8
):
# Likely a context length
name_types[i].add("finetune")
# Lowercase the size when it's a context length
part = part[:-1] + part[-1].lower()
except ValueError:
# Failed to convert the size label to float, use it anyway
pass
if len(name_types[i]) == 0:
name_types[i].add("size_label")
name_parts[i] = part
# Some easy to recognize finetune names
elif i > 0 and re.fullmatch(r'chat|instruct|vision|lora', part, re.IGNORECASE):
if total_params < 0 and part.lower() == "lora":
# ignore redundant "lora" in the finetune part when the output is a lora adapter
name_types[i].add("type")
else:
name_types[i].add("finetune")
# Ignore word-based size labels when there is at least a number-based one present
# TODO: should word-based size labels always be removed instead?
if any(c.isdecimal() for n, t in zip(name_parts, name_types) if "size_label" in t for c in n):
for n, t in zip(name_parts, name_types):
if "size_label" in t:
if all(c.isalpha() for c in n):
t.remove("size_label")
at_start = True
# Find the basename through the annotated name
for part, t in zip(name_parts, name_types):
if at_start and ((len(t) == 0 and part[0].isalpha()) or "version" in t):
t.add("basename")
else:
if at_start:
at_start = False
if len(t) == 0:
t.add("finetune")
# Remove the basename annotation from trailing version
for part, t in zip(reversed(name_parts), reversed(name_types)):
if "basename" in t and len(t) > 1:
t.remove("basename")
else:
break
basename = "-".join(n for n, t in zip(name_parts, name_types) if "basename" in t) or None
# Deduplicate size labels using order-preserving 'dict' ('set' seems to sort the keys)
size_label = "-".join(dict.fromkeys(s for s, t in zip(name_parts, name_types) if "size_label" in t).keys()) or None
finetune = "-".join(f for f, t in zip(name_parts, name_types) if "finetune" in t) or None
# TODO: should the basename version always be excluded?
# NOTE: multiple finetune versions are joined together
version = "-".join(v for v, t, in zip(name_parts, name_types) if "version" in t and "basename" not in t) or None
if size_label is None and finetune is None and version is None:
# Too ambiguous, output nothing
basename = None
return model_full_name_component, org_component, basename, finetune, version, size_label
@staticmethod
def apply_metadata_heuristic(metadata: Metadata, model_card: Optional[dict] = None, hf_params: Optional[dict] = None, model_path: Optional[Path] = None, total_params: int = 0) -> Metadata:
# Reference Model Card Metadata: https://github.com/huggingface/hub-docs/blob/main/modelcard.md?plain=1
# Model Card Heuristics
########################
if model_card is not None:
def use_model_card_metadata(metadata_key: str, model_card_key: str):
if model_card_key in model_card and getattr(metadata, metadata_key, None) is None:
setattr(metadata, metadata_key, model_card.get(model_card_key))
def use_array_model_card_metadata(metadata_key: str, model_card_key: str):
# Note: Will append rather than replace if already exist
tags_value = model_card.get(model_card_key, None)
if tags_value is None:
return
current_value = getattr(metadata, metadata_key, None)
if current_value is None:
current_value = []
if isinstance(tags_value, str):
current_value.append(tags_value)
elif isinstance(tags_value, list):
current_value.extend(tags_value)
setattr(metadata, metadata_key, current_value)
# LLAMA.cpp's direct internal convention
# (Definitely not part of hugging face formal/informal standard)
#########################################
use_model_card_metadata("name", "name")
use_model_card_metadata("author", "author")
use_model_card_metadata("version", "version")
use_model_card_metadata("organization", "organization")
use_model_card_metadata("description", "description")
use_model_card_metadata("finetune", "finetune")
use_model_card_metadata("basename", "basename")
use_model_card_metadata("size_label", "size_label")
use_model_card_metadata("source_url", "url")
use_model_card_metadata("source_doi", "doi")
use_model_card_metadata("source_uuid", "uuid")
use_model_card_metadata("source_repo_url", "repo_url")
# LLAMA.cpp's huggingface style convention
# (Definitely not part of hugging face formal/informal standard... but with model_ appended to match their style)
###########################################
use_model_card_metadata("name", "model_name")
use_model_card_metadata("author", "model_author")
use_model_card_metadata("version", "model_version")
use_model_card_metadata("organization", "model_organization")
use_model_card_metadata("description", "model_description")
use_model_card_metadata("finetune", "model_finetune")
use_model_card_metadata("basename", "model_basename")
use_model_card_metadata("size_label", "model_size_label")
use_model_card_metadata("source_url", "model_url")
use_model_card_metadata("source_doi", "model_doi")
use_model_card_metadata("source_uuid", "model_uuid")
use_model_card_metadata("source_repo_url", "model_repo_url")
# Hugging Face Direct Convention
#################################
# Not part of huggingface model card standard but notice some model creator using it
# such as TheBloke in 'TheBloke/Mistral-7B-Instruct-v0.2-GGUF'
use_model_card_metadata("name", "model_name")
use_model_card_metadata("author", "model_creator")
use_model_card_metadata("basename", "model_type")
if "base_model" in model_card:
# This represents the parent models that this is based on
# Example: stabilityai/stable-diffusion-xl-base-1.0. Can also be a list (for merges)
# Example of merges: https://huggingface.co/EmbeddedLLM/Mistral-7B-Merge-14-v0.1/blob/main/README.md
metadata_base_models = []
base_model_value = model_card.get("base_model", None)
if base_model_value is not None:
if isinstance(base_model_value, str):
metadata_base_models.append(base_model_value)
elif isinstance(base_model_value, list):
metadata_base_models.extend(base_model_value)
if metadata.base_models is None:
metadata.base_models = []
for model_id in metadata_base_models:
# NOTE: model size of base model is assumed to be similar to the size of the current model
model_full_name_component, org_component, basename, finetune, version, size_label = Metadata.get_model_id_components(model_id, total_params)
base_model = {}
if model_full_name_component is not None:
base_model["name"] = Metadata.id_to_title(model_full_name_component)
if org_component is not None:
base_model["organization"] = Metadata.id_to_title(org_component)
if version is not None:
base_model["version"] = version
if org_component is not None and model_full_name_component is not None:
base_model["repo_url"] = f"https://huggingface.co/{org_component}/{model_full_name_component}"
metadata.base_models.append(base_model)
use_model_card_metadata("license", "license")
use_model_card_metadata("license_name", "license_name")
use_model_card_metadata("license_link", "license_link")
use_array_model_card_metadata("tags", "tags")
use_array_model_card_metadata("tags", "pipeline_tag")
use_array_model_card_metadata("languages", "languages")
use_array_model_card_metadata("languages", "language")
use_array_model_card_metadata("datasets", "datasets")
use_array_model_card_metadata("datasets", "dataset")
# Hugging Face Parameter Heuristics
####################################
if hf_params is not None:
hf_name_or_path = hf_params.get("_name_or_path")
if hf_name_or_path is not None and hf_name_or_path.count('/') <= 1:
# Use _name_or_path only if its actually a model name and not some computer path
# e.g. 'meta-llama/Llama-2-7b-hf'
model_id = hf_name_or_path
model_full_name_component, org_component, basename, finetune, version, size_label = Metadata.get_model_id_components(model_id, total_params)
if metadata.name is None and model_full_name_component is not None:
metadata.name = Metadata.id_to_title(model_full_name_component)
if metadata.organization is None and org_component is not None:
metadata.organization = Metadata.id_to_title(org_component)
if metadata.basename is None and basename is not None:
metadata.basename = basename
if metadata.finetune is None and finetune is not None:
metadata.finetune = finetune
if metadata.version is None and version is not None:
metadata.version = version
if metadata.size_label is None and size_label is not None:
metadata.size_label = size_label
# Directory Folder Name Fallback Heuristics
############################################
if model_path is not None:
model_id = model_path.name
model_full_name_component, org_component, basename, finetune, version, size_label = Metadata.get_model_id_components(model_id, total_params)
if metadata.name is None and model_full_name_component is not None:
metadata.name = Metadata.id_to_title(model_full_name_component)
if metadata.organization is None and org_component is not None:
metadata.organization = Metadata.id_to_title(org_component)
if metadata.basename is None and basename is not None:
metadata.basename = basename
if metadata.finetune is None and finetune is not None:
metadata.finetune = finetune
if metadata.version is None and version is not None:
metadata.version = version
if metadata.size_label is None and size_label is not None:
metadata.size_label = size_label
return metadata
def set_gguf_meta_model(self, gguf_writer: gguf.GGUFWriter):
assert self.name is not None
gguf_writer.add_name(self.name)
if self.author is not None:
gguf_writer.add_author(self.author)
if self.version is not None:
gguf_writer.add_version(self.version)
if self.organization is not None:
gguf_writer.add_organization(self.organization)
if self.finetune is not None:
gguf_writer.add_finetune(self.finetune)
if self.basename is not None:
gguf_writer.add_basename(self.basename)
if self.description is not None:
gguf_writer.add_description(self.description)
if self.quantized_by is not None:
gguf_writer.add_quantized_by(self.quantized_by)
if self.size_label is not None:
gguf_writer.add_size_label(self.size_label)
if self.license is not None:
gguf_writer.add_license(self.license)
if self.license_name is not None:
gguf_writer.add_license_name(self.license_name)
if self.license_link is not None:
gguf_writer.add_license_link(self.license_link)
if self.url is not None:
gguf_writer.add_url(self.url)
if self.doi is not None:
gguf_writer.add_doi(self.doi)
if self.uuid is not None:
gguf_writer.add_uuid(self.uuid)
if self.repo_url is not None:
gguf_writer.add_repo_url(self.repo_url)
if self.source_url is not None:
gguf_writer.add_source_url(self.source_url)
if self.source_doi is not None:
gguf_writer.add_source_doi(self.source_doi)
if self.source_uuid is not None:
gguf_writer.add_source_uuid(self.source_uuid)
if self.source_repo_url is not None:
gguf_writer.add_source_repo_url(self.source_repo_url)
if self.base_models is not None:
gguf_writer.add_base_model_count(len(self.base_models))
for key, base_model_entry in enumerate(self.base_models):
if "name" in base_model_entry:
gguf_writer.add_base_model_name(key, base_model_entry["name"])
if "author" in base_model_entry:
gguf_writer.add_base_model_author(key, base_model_entry["author"])
if "version" in base_model_entry:
gguf_writer.add_base_model_version(key, base_model_entry["version"])
if "organization" in base_model_entry:
gguf_writer.add_base_model_organization(key, base_model_entry["organization"])
if "url" in base_model_entry:
gguf_writer.add_base_model_url(key, base_model_entry["url"])
if "doi" in base_model_entry:
gguf_writer.add_base_model_doi(key, base_model_entry["doi"])
if "uuid" in base_model_entry:
gguf_writer.add_base_model_uuid(key, base_model_entry["uuid"])
if "repo_url" in base_model_entry:
gguf_writer.add_base_model_repo_url(key, base_model_entry["repo_url"])
if self.tags is not None:
gguf_writer.add_tags(self.tags)
if self.languages is not None:
gguf_writer.add_languages(self.languages)
if self.datasets is not None:
gguf_writer.add_datasets(self.datasets)
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