from operator import itemgetter import os import logging import asyncio from watchdog.observers import Observer from watchdog.events import FileSystemEventHandler, FileCreatedEvent, FileDeletedEvent from typing import List from threading import Lock from .lora_scanner import LoraScanner from ..config import config logger = logging.getLogger(__name__) class LoraFileHandler(FileSystemEventHandler): """Handler for LoRA file system events""" def __init__(self, scanner: LoraScanner, loop: asyncio.AbstractEventLoop): self.scanner = scanner self.loop = loop # 存储事件循环引用 self.pending_changes = set() # 待处理的变更 self.lock = Lock() # 线程安全锁 self.update_task = None # 异步更新任务 self._ignore_paths = set() # Add ignore paths set self._min_ignore_timeout = 5 # minimum timeout in seconds self._download_speed = 1024 * 1024 # assume 1MB/s as base speed def _should_ignore(self, path: str) -> bool: """Check if path should be ignored""" real_path = os.path.realpath(path) # Resolve any symbolic links return real_path.replace(os.sep, '/') in self._ignore_paths def add_ignore_path(self, path: str, file_size: int = 0): """Add path to ignore list with dynamic timeout based on file size""" real_path = os.path.realpath(path) # Resolve any symbolic links self._ignore_paths.add(real_path.replace(os.sep, '/')) # Short timeout (e.g. 5 seconds) is sufficient to ignore the CREATE event timeout = 5 asyncio.get_event_loop().call_later( timeout, self._ignore_paths.discard, real_path.replace(os.sep, '/') ) def on_created(self, event): if event.is_directory or not event.src_path.endswith('.safetensors'): return if self._should_ignore(event.src_path): return logger.info(f"LoRA file created: {event.src_path}") self._schedule_update('add', event.src_path) def on_deleted(self, event): if event.is_directory or not event.src_path.endswith('.safetensors'): return if self._should_ignore(event.src_path): return logger.info(f"LoRA file deleted: {event.src_path}") self._schedule_update('remove', event.src_path) def _schedule_update(self, action: str, file_path: str): #file_path is a real path """Schedule a cache update""" with self.lock: # 使用 config 中的方法映射路径 mapped_path = config.map_path_to_link(file_path) normalized_path = mapped_path.replace(os.sep, '/') self.pending_changes.add((action, normalized_path)) self.loop.call_soon_threadsafe(self._create_update_task) def _create_update_task(self): """Create update task in the event loop""" if self.update_task is None or self.update_task.done(): self.update_task = asyncio.create_task(self._process_changes()) async def _process_changes(self, delay: float = 2.0): """Process pending changes with debouncing""" await asyncio.sleep(delay) try: with self.lock: changes = self.pending_changes.copy() self.pending_changes.clear() if not changes: return logger.info(f"Processing {len(changes)} file changes") cache = await self.scanner.get_cached_data() # 先完成可能的初始化 needs_resort = False new_folders = set() # 用于收集新的文件夹 for action, file_path in changes: try: if action == 'add': # 扫描新文件 lora_data = await self.scanner.scan_single_lora(file_path) if lora_data: cache.raw_data.append(lora_data) new_folders.add(lora_data['folder']) # 收集新文件夹 needs_resort = True elif action == 'remove': # 从缓存中移除 logger.info(f"Removing {file_path} from cache") cache.raw_data = [ item for item in cache.raw_data if item['file_path'] != file_path ] needs_resort = True except Exception as e: logger.error(f"Error processing {action} for {file_path}: {e}") if needs_resort: await cache.resort() # 更新文件夹列表，包括新添加的文件夹 all_folders = set(cache.folders) | new_folders cache.folders = sorted(list(all_folders), key=lambda x: x.lower()) except Exception as e: logger.error(f"Error in process_changes: {e}") class LoraFileMonitor: """Monitor for LoRA file changes""" def __init__(self, scanner: LoraScanner, roots: List[str]): self.scanner = scanner scanner.set_file_monitor(self) self.observer = Observer() self.loop = asyncio.get_event_loop() self.handler = LoraFileHandler(scanner, self.loop) # 使用已存在的路径映射 self.monitor_paths = set() for root in roots: self.monitor_paths.add(os.path.realpath(root).replace(os.sep, '/')) # 添加所有已映射的目标路径 for target_path in config._path_mappings.keys(): self.monitor_paths.add(target_path) def start(self): """Start monitoring""" for path_info in self.monitor_paths: try: if isinstance(path_info, tuple): # 对于链接，监控目标路径 _, target_path = path_info self.observer.schedule(self.handler, target_path, recursive=True) logger.info(f"Started monitoring target path: {target_path}") else: # 对于普通路径，直接监控 self.observer.schedule(self.handler, path_info, recursive=True) logger.info(f"Started monitoring: {path_info}") except Exception as e: logger.error(f"Error monitoring {path_info}: {e}") self.observer.start() def stop(self): """Stop monitoring""" self.observer.stop() self.observer.join() def rescan_links(self): """重新扫描链接（当添加新的链接时调用）""" new_paths = set() for path in self.monitor_paths.copy(): self._add_link_targets(path) # 添加新发现的路径到监控 new_paths = self.monitor_paths - set(self.observer.watches.keys()) for path in new_paths: try: self.observer.schedule(self.handler, path, recursive=True) logger.info(f"Added new monitoring path: {path}") except Exception as e: logger.error(f"Error adding new monitor for {path}: {e}")