import json import os import logging import asyncio import shutil from typing import List, Dict, Optional from dataclasses import dataclass from operator import itemgetter from ..config import config from ..utils.file_utils import load_metadata, get_file_info from .lora_cache import LoraCache from difflib import SequenceMatcher from .lora_hash_index import LoraHashIndex logger = logging.getLogger(__name__) class LoraScanner: """Service for scanning and managing LoRA files""" _instance = None _lock = asyncio.Lock() def __new__(cls): if cls._instance is None: cls._instance = super().__new__(cls) return cls._instance def __init__(self): # 确保初始化只执行一次 if not hasattr(self, '_initialized'): self._cache: Optional[LoraCache] = None self._hash_index = LoraHashIndex() self._initialization_lock = asyncio.Lock() self._initialization_task: Optional[asyncio.Task] = None self._initialized = True self.file_monitor = None # Add this line def set_file_monitor(self, monitor): """Set file monitor instance""" self.file_monitor = monitor @classmethod async def get_instance(cls): """Get singleton instance with async support""" async with cls._lock: if cls._instance is None: cls._instance = cls() return cls._instance async def get_cached_data(self, force_refresh: bool = False) -> LoraCache: """Get cached LoRA data, refresh if needed""" async with self._initialization_lock: # 如果缓存未初始化但需要响应请求，返回空缓存 if self._cache is None and not force_refresh: return LoraCache( raw_data=[], sorted_by_name=[], sorted_by_date=[], folders=[] ) # 如果正在初始化，等待完成 if self._initialization_task and not self._initialization_task.done(): try: await self._initialization_task except Exception as e: logger.error(f"Cache initialization failed: {e}") self._initialization_task = None if (self._cache is None or force_refresh): # 创建新的初始化任务 if not self._initialization_task or self._initialization_task.done(): self._initialization_task = asyncio.create_task(self._initialize_cache()) try: await self._initialization_task except Exception as e: logger.error(f"Cache initialization failed: {e}") # 如果缓存已存在，继续使用旧缓存 if self._cache is None: raise # 如果没有缓存，则抛出异常 return self._cache async def _initialize_cache(self) -> None: """Initialize or refresh the cache""" try: # Clear existing hash index self._hash_index.clear() # Scan for new data raw_data = await self.scan_all_loras() # Build hash index for lora_data in raw_data: if 'sha256' in lora_data and 'file_path' in lora_data: self._hash_index.add_entry(lora_data['sha256'], lora_data['file_path']) # Update cache self._cache = LoraCache( raw_data=raw_data, sorted_by_name=[], sorted_by_date=[], folders=[] ) # Call resort_cache to create sorted views await self._cache.resort() self._initialization_task = None logger.info("LoRA Manager: Cache initialization completed") except Exception as e: logger.error(f"LoRA Manager: Error initializing cache: {e}") self._cache = LoraCache( raw_data=[], sorted_by_name=[], sorted_by_date=[], folders=[] ) def fuzzy_match(self, text: str, pattern: str, threshold: float = 0.7) -> bool: """ Check if text matches pattern using fuzzy matching. Returns True if similarity ratio is above threshold. """ if not pattern or not text: return False # Convert both to lowercase for case-insensitive matching text = text.lower() pattern = pattern.lower() # Split pattern into words search_words = pattern.split() # Check each word for word in search_words: # First check if word is a substring (faster) if word in text: continue # If not found as substring, try fuzzy matching # Check if any part of the text matches this word found_match = False for text_part in text.split(): ratio = SequenceMatcher(None, text_part, word).ratio() if ratio >= threshold: found_match = True break if not found_match: return False # All words found either as substrings or fuzzy matches return True async def get_paginated_data(self, page: int, page_size: int, sort_by: str = 'name', folder: str = None, search: str = None, fuzzy: bool = False, recursive: bool = False, base_models: list = None): """Get paginated and filtered lora data Args: page: Current page number (1-based) page_size: Number of items per page sort_by: Sort method ('name' or 'date') folder: Filter by folder path search: Search term fuzzy: Use fuzzy matching for search recursive: Include subfolders when folder filter is applied base_models: List of base models to filter by """ cache = await self.get_cached_data() # 先获取基础数据集 filtered_data = cache.sorted_by_date if sort_by == 'date' else cache.sorted_by_name # 应用文件夹过滤 if folder is not None: if recursive: # 递归模式：匹配所有以该文件夹开头的路径 filtered_data = [ item for item in filtered_data if item['folder'].startswith(folder + '/') or item['folder'] == folder ] else: # 非递归模式：只匹配确切的文件夹 filtered_data = [ item for item in filtered_data if item['folder'] == folder ] # Apply base model filtering if base_models and len(base_models) > 0: filtered_data = [ item for item in filtered_data if item.get('base_model') in base_models ] # 应用搜索过滤 if search: if fuzzy: filtered_data = [ item for item in filtered_data if any( self.fuzzy_match(str(value), search) for value in [ item.get('model_name', ''), item.get('base_model', '') ] if value ) ] else: # Original exact search logic filtered_data = [ item for item in filtered_data if search in str(item.get('model_name', '')).lower() ] # 计算分页 total_items = len(filtered_data) start_idx = (page - 1) * page_size end_idx = min(start_idx + page_size, total_items) result = { 'items': filtered_data[start_idx:end_idx], 'total': total_items, 'page': page, 'page_size': page_size, 'total_pages': (total_items + page_size - 1) // page_size } return result def invalidate_cache(self): """Invalidate the current cache""" self._cache = None async def scan_all_loras(self) -> List[Dict]: """Scan all LoRA directories and return metadata""" all_loras = [] # 分目录异步扫描 scan_tasks = [] for loras_root in config.loras_roots: task = asyncio.create_task(self._scan_directory(loras_root)) scan_tasks.append(task) for task in scan_tasks: try: loras = await task all_loras.extend(loras) except Exception as e: logger.error(f"Error scanning directory: {e}") return all_loras async def _scan_directory(self, root_path: str) -> List[Dict]: """Scan a single directory for LoRA files""" loras = [] original_root = root_path # 保存原始根路径 async def scan_recursive(path: str, visited_paths: set): """递归扫描目录，避免循环链接""" try: real_path = os.path.realpath(path) if real_path in visited_paths: logger.debug(f"Skipping already visited path: {path}") return visited_paths.add(real_path) with os.scandir(path) as it: entries = list(it) for entry in entries: try: if entry.is_file(follow_symlinks=True) and entry.name.endswith('.safetensors'): # 使用原始路径而不是真实路径 file_path = entry.path.replace(os.sep, "/") await self._process_single_file(file_path, original_root, loras) await asyncio.sleep(0) elif entry.is_dir(follow_symlinks=True): # 对于目录，使用原始路径继续扫描 await scan_recursive(entry.path, visited_paths) except Exception as e: logger.error(f"Error processing entry {entry.path}: {e}") except Exception as e: logger.error(f"Error scanning {path}: {e}") await scan_recursive(root_path, set()) return loras async def _process_single_file(self, file_path: str, root_path: str, loras: list): """处理单个文件并添加到结果列表""" try: result = await self._process_lora_file(file_path, root_path) if result: loras.append(result) except Exception as e: logger.error(f"Error processing {file_path}: {e}") async def _process_lora_file(self, file_path: str, root_path: str) -> Dict: """Process a single LoRA file and return its metadata""" # Try loading existing metadata metadata = await load_metadata(file_path) if metadata is None: # Create new metadata if none exists metadata = await get_file_info(file_path) # Convert to dict and add folder info lora_data = metadata.to_dict() rel_path = os.path.relpath(file_path, root_path) folder = os.path.dirname(rel_path) lora_data['folder'] = folder.replace(os.path.sep, '/') return lora_data async def update_preview_in_cache(self, file_path: str, preview_url: str) -> bool: """Update preview URL in cache for a specific lora Args: file_path: The file path of the lora to update preview_url: The new preview URL Returns: bool: True if the update was successful, False if cache doesn't exist or lora wasn't found """ if self._cache is None: return False return await self._cache.update_preview_url(file_path, preview_url) async def scan_single_lora(self, file_path: str) -> Optional[Dict]: """Scan a single LoRA file and return its metadata""" try: if not os.path.exists(os.path.realpath(file_path)): return None # 获取基本文件信息 metadata = await get_file_info(file_path) if not metadata: return None folder = self._calculate_folder(file_path) # 确保 folder 字段存在 metadata_dict = metadata.to_dict() metadata_dict['folder'] = folder or '' return metadata_dict except Exception as e: logger.error(f"Error scanning {file_path}: {e}") return None def _calculate_folder(self, file_path: str) -> str: """Calculate the folder path for a LoRA file""" # 使用原始路径计算相对路径 for root in config.loras_roots: if file_path.startswith(root): rel_path = os.path.relpath(file_path, root) return os.path.dirname(rel_path).replace(os.path.sep, '/') return '' async def move_model(self, source_path: str, target_path: str) -> bool: """Move a model and its associated files to a new location""" try: # 保持原始路径格式 source_path = source_path.replace(os.sep, '/') target_path = target_path.replace(os.sep, '/') # 其余代码保持不变 base_name = os.path.splitext(os.path.basename(source_path))[0] source_dir = os.path.dirname(source_path) os.makedirs(target_path, exist_ok=True) target_lora = os.path.join(target_path, f"{base_name}.safetensors").replace(os.sep, '/') # 使用真实路径进行文件操作 real_source = os.path.realpath(source_path) real_target = os.path.realpath(target_lora) file_size = os.path.getsize(real_source) if self.file_monitor: self.file_monitor.handler.add_ignore_path( real_source, file_size ) self.file_monitor.handler.add_ignore_path( real_target, file_size ) # 使用真实路径进行文件操作 shutil.move(real_source, real_target) # Move associated files source_metadata = os.path.join(source_dir, f"{base_name}.metadata.json") if os.path.exists(source_metadata): target_metadata = os.path.join(target_path, f"{base_name}.metadata.json") shutil.move(source_metadata, target_metadata) metadata = await self._update_metadata_paths(target_metadata, target_lora) # Move preview file if exists preview_extensions = ['.preview.png', '.preview.jpeg', '.preview.jpg', '.preview.mp4', '.png', '.jpeg', '.jpg', '.mp4'] for ext in preview_extensions: source_preview = os.path.join(source_dir, f"{base_name}{ext}") if os.path.exists(source_preview): target_preview = os.path.join(target_path, f"{base_name}{ext}") shutil.move(source_preview, target_preview) break # Update cache await self.update_single_lora_cache(source_path, target_lora, metadata) return True except Exception as e: logger.error(f"Error moving model: {e}", exc_info=True) return False async def update_single_lora_cache(self, original_path: str, new_path: str, metadata: Dict) -> bool: cache = await self.get_cached_data() # Remove old path from hash index if exists self._hash_index.remove_by_path(original_path) cache.raw_data = [ item for item in cache.raw_data if item['file_path'] != original_path ] if metadata: metadata['folder'] = self._calculate_folder(new_path) cache.raw_data.append(metadata) # Update hash index with new path if 'sha256' in metadata: self._hash_index.add_entry(metadata['sha256'], new_path) all_folders = set(cache.folders) all_folders.add(metadata['folder']) cache.folders = sorted(list(all_folders), key=lambda x: x.lower()) # Resort cache await cache.resort() async def _update_metadata_paths(self, metadata_path: str, lora_path: str) -> Dict: """Update file paths in metadata file""" try: with open(metadata_path, 'r', encoding='utf-8') as f: metadata = json.load(f) # Update file_path metadata['file_path'] = lora_path.replace(os.sep, '/') # Update preview_url if exists if 'preview_url' in metadata: preview_dir = os.path.dirname(lora_path) preview_name = os.path.splitext(os.path.basename(metadata['preview_url']))[0] preview_ext = os.path.splitext(metadata['preview_url'])[1] new_preview_path = os.path.join(preview_dir, f"{preview_name}{preview_ext}") metadata['preview_url'] = new_preview_path.replace(os.sep, '/') # Save updated metadata with open(metadata_path, 'w', encoding='utf-8') as f: json.dump(metadata, f, indent=2, ensure_ascii=False) return metadata except Exception as e: logger.error(f"Error updating metadata paths: {e}", exc_info=True) # Add new methods for hash index functionality def has_lora_hash(self, sha256: str) -> bool: """Check if a LoRA with given hash exists""" return self._hash_index.has_hash(sha256) def get_lora_path_by_hash(self, sha256: str) -> Optional[str]: """Get file path for a LoRA by its hash""" return self._hash_index.get_path(sha256) def get_lora_hash_by_path(self, file_path: str) -> Optional[str]: """Get hash for a LoRA by its file path""" return self._hash_index.get_hash(file_path)