Files
Azornes-Comfyui-Model-Resolver/core/linker.py
T
Dariusz L 0837964874 Add gguf support and nested widget handling
Add support for the gguf model format across the codebase and improve handling of nested/dict-type widget model references. Changes include:

- Add ".gguf" to model extension lists in core/linker.py, core/scanner.py, core/sources/huggingface.py, and core/workflow_analyzer.py so gguf files are detected and suggested.
- Update HuggingFace search/repo listing to consider gguf files and improve some request/response handling and logging.
- Improve scanner implementation: formatting/PEP8 cleanup, robust extension checks, normalized MODEL_EXTENSIONS set, safer path handling, and clearer logging.
- Add NESTED_MODEL_KEYS and logic in workflow_analyzer to detect model filenames stored inside dict-type widget values (e.g. rgthree Power Lora Loader) and record a nested_key for resolution.
- Propagate nested_key through apply_resolution mapping and update update_model_path to write resolved paths back into nested dict keys when present (instead of only replacing the top-level widget value).
- Update web UI (web/linker.js) regexes to strip/display gguf extensions in model name formatting.

These changes allow gguf models to be discovered, resolved and updated in workflows, and enable support for nodes that store model references inside nested dict fields.
2026-04-19 16:43:25 +02:00

397 lines
14 KiB
Python

"""
Core Linker Module
Integrates all components to provide high-level API for model linking.
"""
import os
import re
import json
import logging
from typing import Dict, Any, List, Optional, Tuple
from urllib.parse import unquote
from .scanner import get_model_files
from .workflow_analyzer import analyze_workflow_models, identify_missing_models
from .matcher import find_matches
from .workflow_updater import update_workflow_nodes
from .sources.civitai import resolve_urn
logger = logging.getLogger(__name__)
# Regex patterns for URL extraction (matches HuggingFace and CivitAI URLs)
URL_PATTERN = re.compile(r'(https?://(?:huggingface\.co|civitai\.com)[^\s"\'<>\)\\]+)')
# Model file extensions to look for
MODEL_EXTENSIONS = (".safetensors", ".ckpt", ".pt", ".pth", ".bin", ".onnx", ".gguf")
def extract_workflow_urls(workflow_json: Dict[str, Any]) -> Dict[str, Dict[str, Any]]:
"""
Extract model URLs from workflow JSON.
Sources:
1. node.properties.models array - contains {name, url, directory}
2. Regex extraction from workflow JSON string - finds HuggingFace/CivitAI URLs
Args:
workflow_json: Complete workflow JSON dictionary
Returns:
Dict mapping model filename -> {url, directory, source}
"""
url_map = {}
# Convert to string for regex search
workflow_str = json.dumps(workflow_json)
# Collect all nodes including from subgraphs
all_nodes = list(workflow_json.get("nodes", []))
definitions = workflow_json.get("definitions", {})
subgraphs = definitions.get("subgraphs", [])
for subgraph in subgraphs:
subgraph_nodes = subgraph.get("nodes", [])
all_nodes.extend(subgraph_nodes)
# 1. Extract from node.properties.models (authoritative source)
for node in all_nodes:
node_type = node.get("type", "")
properties = node.get("properties", {})
models_list = properties.get("models", [])
for model_info in models_list:
if isinstance(model_info, dict):
name = model_info.get("name", "")
url = model_info.get("url", "")
directory = model_info.get("directory", "")
if name and name not in url_map:
url_map[name] = {
"url": url,
"directory": directory,
"node_type": node_type,
"source": "node_properties",
}
# 2. Extract URLs via regex from workflow JSON
urls_found = URL_PATTERN.findall(workflow_str)
# Clean URLs (remove trailing characters that may have been captured)
cleaned_urls = []
for url in urls_found:
url = url.split(")")[0].replace("\\n", "").replace("\n", "").strip()
if url:
cleaned_urls.append(url)
# 3. Extract model filenames via regex
model_pattern = re.compile(
r"([\w\-\.%]+\.(?:safetensors|ckpt|pt|pth|bin|onnx|gguf))", re.IGNORECASE
)
model_files_raw = model_pattern.findall(workflow_str)
# Clean and decode filenames
model_files = set()
model_name_map = {} # decoded -> original
for model in model_files_raw:
cleaned = model.strip()
if cleaned and cleaned[0].isalnum():
try:
decoded = unquote(cleaned)
except Exception:
decoded = cleaned
model_files.add(decoded)
model_name_map[decoded] = cleaned
# 4. Match URLs to model filenames
for model in model_files:
# Skip if already found in node.properties.models
if model in url_map and url_map[model].get("url"):
continue
original_name = model_name_map.get(model, model)
for url in cleaned_urls:
# Check decoded name in URL
if model in url:
if model not in url_map:
url_map[model] = {"url": url, "directory": "", "source": "regex"}
elif not url_map[model].get("url"):
url_map[model]["url"] = url
url_map[model]["source"] = "regex"
break
# Check original (possibly URL-encoded) name in URL
if original_name in url:
if model not in url_map:
url_map[model] = {"url": url, "directory": "", "source": "regex"}
elif not url_map[model].get("url"):
url_map[model]["url"] = url
url_map[model]["source"] = "regex"
break
# Check without extension
model_base = os.path.splitext(model)[0]
if model_base in url or unquote(model_base) in url:
if model not in url_map:
url_map[model] = {"url": url, "directory": "", "source": "regex"}
elif not url_map[model].get("url"):
url_map[model]["url"] = url
url_map[model]["source"] = "regex"
break
return url_map
def parse_huggingface_url(url: str) -> Tuple[Optional[str], Optional[str]]:
"""
Extract HuggingFace repo and path from URL.
Args:
url: HuggingFace URL
Returns:
Tuple of (repo_id, file_path) or (None, None) if not valid
"""
if not url or "huggingface.co" not in url:
return None, None
# Pattern: https://huggingface.co/user/repo/resolve/main/path/to/file.safetensors
match = re.match(
r"https?://huggingface\.co/([^/]+/[^/]+)/(?:resolve|blob)/[^/]+/(.+)", url
)
if match:
return match.group(1), match.group(2)
return None, None
def analyze_and_find_matches(
workflow_json: Dict[str, Any],
similarity_threshold: float = 0.0,
max_matches_per_model: int = 10,
) -> Dict[str, Any]:
"""
Main entry point: analyze workflow and find matches for missing models.
Args:
workflow_json: Complete workflow JSON dictionary
similarity_threshold: Minimum similarity score (0.0 to 1.0) for matches
max_matches_per_model: Maximum number of matches to return per missing model
Returns:
Dictionary with analysis results:
{
'missing_models': [
{
'node_id': node ID,
'node_type': node type,
'widget_index': widget index,
'original_path': original path from workflow,
'category': model category,
'workflow_url': URL from workflow if found,
'workflow_directory': directory from workflow if found,
'matches': [
{
'model': model dict from scanner,
'filename': model filename,
'similarity': similarity score (0.0-1.0),
'confidence': confidence percentage (0-100)
},
...
]
},
...
],
'total_missing': count of missing models,
'total_models_analyzed': count of all models in workflow
}
"""
# Extract URLs from workflow (node.properties.models + regex)
workflow_urls = extract_workflow_urls(workflow_json)
logger.debug(f"Extracted {len(workflow_urls)} URLs from workflow")
# Analyze workflow to find all model references
all_model_refs = analyze_workflow_models(workflow_json)
# Get available models
available_models = get_model_files()
# Identify missing models
missing_models = identify_missing_models(all_model_refs, available_models)
# Enrich missing models with workflow URLs
for missing in missing_models:
original_path = missing.get("original_path", "")
filename = os.path.basename(original_path)
if filename in workflow_urls:
url_info = workflow_urls[filename]
missing["workflow_url"] = url_info.get("url", "")
missing["workflow_directory"] = url_info.get("directory", "")
missing["url_source"] = url_info.get("source", "")
# Handle URNs: fetch expected filename from CivitAI
for missing in missing_models:
if missing.get("is_urn"):
urn = missing["urn"]
model_info = resolve_urn(urn["model_id"], urn["version_id"])
if model_info:
missing["civitai_info"] = {
"model_name": model_info.get("model_name"),
"version_name": model_info.get("version_name"),
}
if model_info:
missing["civitai_info"] = model_info
missing["expected_filename"] = model_info["expected_filename"]
logger.debug(
f"URN {missing['original_path']} → {missing['expected_filename']}"
)
# Add URN type to missing model for search functionality
if "urn" in missing:
missing["urn_type"] = missing["urn"].get("type", "")
# Find matches for each missing model
missing_with_matches = []
for missing in missing_models:
# Skip LoraManager lorAs that already exist locally (exists=True means no linking needed)
is_lora_v2 = missing.get("is_lora_v2")
exists = missing.get("exists")
name = missing.get("name") or missing.get("original_path", "")
logger.debug(f"Checking {name}: is_lora_v2={is_lora_v2}, exists={exists}")
if is_lora_v2 and exists:
logger.info(f"Skipping LoraManager lora {name} - already exists locally")
continue
target_for_matching = missing.get("original_path", "")
# For URNs, prefer expected_filename for matching
if missing.get("is_urn") and missing.get("expected_filename"):
target_for_matching = missing["expected_filename"]
# Filter available models by category if known
category = missing.get("category")
if not category or category == "unknown":
from .workflow_analyzer import NODE_TYPE_TO_CATEGORY_HINTS
node_type = missing.get("node_type", "")
category = NODE_TYPE_TO_CATEGORY_HINTS.get(node_type, "unknown")
candidates = available_models
if category and category != "unknown":
candidates = [m for m in available_models if m.get("category") == category]
candidates.extend(
[m for m in available_models if m.get("category") != category]
)
# Find matches
matches = find_matches(
target_for_matching,
candidates,
threshold=similarity_threshold,
max_results=max_matches_per_model,
)
# Deduplicate matches by absolute path
seen_absolute_paths = {}
deduplicated_matches = []
for match in matches:
model_dict = match["model"]
absolute_path = model_dict.get("path", "")
if absolute_path:
absolute_path = os.path.normpath(absolute_path)
if absolute_path not in seen_absolute_paths:
seen_absolute_paths[absolute_path] = match
deduplicated_matches.append(match)
else:
existing_match = seen_absolute_paths[absolute_path]
if match["confidence"] > existing_match["confidence"]:
idx = deduplicated_matches.index(existing_match)
deduplicated_matches[idx] = match
seen_absolute_paths[absolute_path] = match
missing_with_matches.append({**missing, "matches": deduplicated_matches})
return {
"missing_models": missing_with_matches,
"total_missing": len(missing_with_matches),
"total_models_analyzed": len(all_model_refs),
}
def apply_resolution(
workflow_json: Dict[str, Any], resolutions: List[Dict[str, Any]]
) -> Dict[str, Any]:
"""
Apply model resolutions to workflow.
Args:
workflow_json: Workflow JSON dictionary (will be modified)
resolutions: List of resolution dictionaries:
{
'node_id': node ID,
'widget_index': widget index,
'resolved_path': absolute path to resolved model,
'category': model category (optional),
'resolved_model': model dict from scanner (optional),
'nested_key': nested key for dict-type widgets (optional)
}
Returns:
Updated workflow JSON dictionary
"""
# Prepare mappings for workflow_updater
mappings = []
for resolution in resolutions:
mapping = {
"node_id": resolution.get("node_id"),
"widget_index": resolution.get("widget_index"),
"resolved_path": resolution.get("resolved_path"),
"category": resolution.get("category"),
"resolved_model": resolution.get("resolved_model"),
"subgraph_id": resolution.get(
"subgraph_id"
), # Include subgraph_id for subgraph nodes
"is_top_level": resolution.get(
"is_top_level"
), # True for top-level nodes, False for nodes in subgraph definitions
"is_lora_v2": resolution.get("is_lora_v2"), # Flag for LoraManager nodes
"original_lora_name": resolution.get(
"original_lora_name"
), # Original lora name for LoraManager replacement
"nested_key": resolution.get(
"nested_key"
), # For dict-type widgets (e.g. Power Lora Loader)
}
# If resolved_model provided, extract path if needed
if "resolved_model" in resolution and resolution["resolved_model"]:
resolved_model = resolution["resolved_model"]
if "path" in resolved_model and not mapping.get("resolved_path"):
mapping["resolved_path"] = resolved_model["path"]
if "base_directory" in resolved_model:
mapping["base_directory"] = resolved_model["base_directory"]
mappings.append(mapping)
# Update workflow
updated_workflow = update_workflow_nodes(workflow_json, mappings)
return updated_workflow
def get_resolution_summary(workflow_json: Dict[str, Any]) -> Dict[str, Any]:
"""
Get summary of missing models and matches without applying resolutions.
This is a convenience method that calls analyze_and_find_matches with defaults.
Args:
workflow_json: Complete workflow JSON dictionary
Returns:
Same format as analyze_and_find_matches
"""
return analyze_and_find_matches(workflow_json)