mirror of
https://github.com/willmiao/ComfyUI-Lora-Manager.git
synced 2026-03-21 21:22:11 -03:00
feat: lazy hash calculation for checkpoints
Checkpoints are typically large (10GB+). This change delays SHA256 hash calculation until metadata fetch from Civitai is requested, significantly improving initial scan performance. - Add hash_status field to BaseModelMetadata - CheckpointScanner skips hash during initial scan - On-demand hash calculation during Civitai fetch - Background bulk hash calculation support
This commit is contained in:
Will Miao
@@ -1,7 +1,12 @@
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import json
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import logging
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import os
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from datetime import datetime
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from typing import Any, Dict, List, Optional
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from ..utils.models import CheckpointMetadata
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from ..utils.file_utils import find_preview_file, normalize_path
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from ..utils.metadata_manager import MetadataManager
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from ..config import config
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from .model_scanner import ModelScanner
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from .model_hash_index import ModelHashIndex
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@@ -21,6 +26,216 @@ class CheckpointScanner(ModelScanner):
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hash_index=ModelHashIndex()
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)
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async def _create_default_metadata(self, file_path: str) -> Optional[CheckpointMetadata]:
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"""Create default metadata for checkpoint without calculating hash (lazy hash).
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Checkpoints are typically large (10GB+), so we skip hash calculation during initial
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scanning to improve startup performance. Hash will be calculated on-demand when
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fetching metadata from Civitai.
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"""
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try:
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real_path = os.path.realpath(file_path)
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if not os.path.exists(real_path):
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logger.error(f"File not found: {file_path}")
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return None
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base_name = os.path.splitext(os.path.basename(file_path))[0]
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dir_path = os.path.dirname(file_path)
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# Find preview image
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preview_url = find_preview_file(base_name, dir_path)
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# Create metadata WITHOUT calculating hash
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metadata = CheckpointMetadata(
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file_name=base_name,
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model_name=base_name,
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file_path=normalize_path(file_path),
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size=os.path.getsize(real_path),
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modified=datetime.now().timestamp(),
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sha256="", # Empty hash - will be calculated on-demand
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base_model="Unknown",
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preview_url=normalize_path(preview_url),
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tags=[],
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modelDescription="",
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sub_type="checkpoint",
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from_civitai=False, # Mark as local model since no hash yet
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hash_status="pending" # Mark hash as pending
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)
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# Save the created metadata
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logger.info(f"Creating checkpoint metadata (hash pending) for {file_path}")
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await MetadataManager.save_metadata(file_path, metadata)
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return metadata
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except Exception as e:
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logger.error(f"Error creating default checkpoint metadata for {file_path}: {e}")
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return None
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async def calculate_hash_for_model(self, file_path: str) -> Optional[str]:
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"""Calculate hash for a checkpoint on-demand.
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Args:
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file_path: Path to the model file
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Returns:
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SHA256 hash string, or None if calculation failed
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"""
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from ..utils.file_utils import calculate_sha256
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try:
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real_path = os.path.realpath(file_path)
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if not os.path.exists(real_path):
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logger.error(f"File not found for hash calculation: {file_path}")
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return None
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# Load current metadata
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metadata, _ = await MetadataManager.load_metadata(file_path, self.model_class)
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if metadata is None:
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logger.error(f"No metadata found for {file_path}")
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return None
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# Check if hash is already calculated
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if metadata.hash_status == "completed" and metadata.sha256:
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return metadata.sha256
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# Update status to calculating
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metadata.hash_status = "calculating"
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await MetadataManager.save_metadata(file_path, metadata)
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# Calculate hash
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logger.info(f"Calculating hash for checkpoint: {file_path}")
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sha256 = await calculate_sha256(real_path)
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# Update metadata with hash
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metadata.sha256 = sha256
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metadata.hash_status = "completed"
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await MetadataManager.save_metadata(file_path, metadata)
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# Update hash index
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self._hash_index.add_entry(sha256.lower(), file_path)
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logger.info(f"Hash calculated for checkpoint: {file_path}")
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return sha256
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except Exception as e:
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logger.error(f"Error calculating hash for {file_path}: {e}")
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# Update status to failed
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try:
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metadata, _ = await MetadataManager.load_metadata(file_path, self.model_class)
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if metadata:
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metadata.hash_status = "failed"
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await MetadataManager.save_metadata(file_path, metadata)
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except Exception:
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pass
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return None
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async def calculate_all_pending_hashes(self, progress_callback=None) -> Dict[str, int]:
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"""Calculate hashes for all checkpoints with pending hash status.
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If cache is not initialized, scans filesystem directly for metadata files
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with hash_status != 'completed'.
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Args:
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progress_callback: Optional callback(progress, total, current_file)
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Returns:
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Dict with 'completed', 'failed', 'total' counts
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"""
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# Try to get from cache first
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cache = await self.get_cached_data()
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if cache and cache.raw_data:
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# Use cache if available
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pending_models = [
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item for item in cache.raw_data
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if item.get('hash_status') != 'completed' or not item.get('sha256')
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]
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else:
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# Cache not initialized, scan filesystem directly
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pending_models = await self._find_pending_models_from_filesystem()
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if not pending_models:
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return {'completed': 0, 'failed': 0, 'total': 0}
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total = len(pending_models)
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completed = 0
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failed = 0
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for i, model_data in enumerate(pending_models):
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file_path = model_data.get('file_path')
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if not file_path:
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continue
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try:
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sha256 = await self.calculate_hash_for_model(file_path)
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if sha256:
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completed += 1
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else:
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failed += 1
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except Exception as e:
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logger.error(f"Error calculating hash for {file_path}: {e}")
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failed += 1
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if progress_callback:
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try:
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await progress_callback(i + 1, total, file_path)
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except Exception:
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pass
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return {
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'completed': completed,
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'failed': failed,
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'total': total
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}
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async def _find_pending_models_from_filesystem(self) -> List[Dict[str, Any]]:
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"""Scan filesystem for checkpoint metadata files with pending hash status."""
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pending_models = []
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for root_path in self.get_model_roots():
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if not os.path.exists(root_path):
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continue
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for dirpath, _dirnames, filenames in os.walk(root_path):
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for filename in filenames:
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if not filename.endswith('.metadata.json'):
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continue
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metadata_path = os.path.join(dirpath, filename)
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try:
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with open(metadata_path, 'r', encoding='utf-8') as f:
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data = json.load(f)
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# Check if hash is pending
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hash_status = data.get('hash_status', 'completed')
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sha256 = data.get('sha256', '')
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if hash_status != 'completed' or not sha256:
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# Find corresponding model file
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model_name = filename.replace('.metadata.json', '')
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model_path = None
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# Look for model file with matching name
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for ext in self.file_extensions:
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potential_path = os.path.join(dirpath, model_name + ext)
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if os.path.exists(potential_path):
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model_path = potential_path
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break
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if model_path:
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pending_models.append({
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'file_path': model_path.replace(os.sep, '/'),
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'hash_status': hash_status,
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'sha256': sha256,
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**{k: v for k, v in data.items() if k not in ['file_path', 'hash_status', 'sha256']}
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})
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except (json.JSONDecodeError, Exception) as e:
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logger.debug(f"Error reading metadata file {metadata_path}: {e}")
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continue
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return pending_models
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def _resolve_sub_type(self, root_path: Optional[str]) -> Optional[str]:
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"""Resolve the sub-type based on the root path."""
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if not root_path:
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@@ -282,6 +282,11 @@ class ModelScanner:
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sub_type = get_value('sub_type', None)
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if sub_type:
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entry['sub_type'] = sub_type
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# Handle hash_status for lazy hash calculation (checkpoints)
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hash_status = get_value('hash_status', 'completed')
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if hash_status:
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entry['hash_status'] = hash_status
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return entry
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