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73 lines
3.9 KiB
Python
73 lines
3.9 KiB
Python
"""每个 Vault 独立、可重建的 FTS 投影，仅通过 Host 代理读取源数据。"""
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from __future__ import annotations
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import asyncio
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from app import repository
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from app.database.db import connect_knowledge, transaction
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from app.knowledge.parser import parse_note
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from app.services import desktop_notes
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from app.services.coordination import vault_mutation_lock
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def entries():
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result, offset = [], 0
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while True:
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page = desktop_notes.call('list', offset=offset, limit=1000)
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result.extend(page['items'])
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offset += len(page['items'])
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if offset >= page['total'] or not page['items']: return result
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def _refresh():
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current = entries() # 始终验证授权，包括缓存处于最新状态时。
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conn = connect_knowledge()
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try:
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conn.execute('CREATE TABLE IF NOT EXISTS host_projection (file_id TEXT PRIMARY KEY, hash TEXT NOT NULL, path TEXT NOT NULL)')
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old = {row['file_id']: (row['hash'], row['path']) for row in conn.execute('SELECT * FROM host_projection')}
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changed = []
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for entry in current:
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if old.get(entry['file_id']) == (entry['hash'], entry['path']): continue
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document = desktop_notes.call('read', file_id=entry['file_id'])
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note = desktop_notes.note_from_document(document)
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parsed = parse_note(markdown=note.markdown, file_path=note.file_path,
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folder=note.file_path.rpartition('/')[0], note_id=note.note_id,
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tags=note.tags, created_at=note.created_at, updated_at=note.updated_at)
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changed.append((document, parsed))
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removed = set(old) - {entry['file_id'] for entry in current}
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# 启动投影事务前先验证内容；事务内部不执行模型或网络 I/O。
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with transaction(conn):
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task_links = []
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for entry in current:
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for alias in entry.get('aliases', []):
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if alias in removed:
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task_links.extend((entry['file_id'], row['task_id']) for row in conn.execute('SELECT task_id FROM tasks WHERE note_id=?', [alias]))
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for file_id in removed:
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for block_id in repository.delete_note(file_id, conn=conn):
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conn.execute('DELETE FROM vec_blocks WHERE block_id=?', [block_id])
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conn.execute('DELETE FROM host_projection WHERE file_id=?', [file_id])
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for document, parsed in changed:
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old_ids = repository.replace_note_metadata(conn=conn, note_id=parsed.note_id, title=parsed.title,
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file_path=parsed.file_path, folder=parsed.folder, tags=parsed.tags, created_at=parsed.created_at,
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updated_at=parsed.updated_at, blocks=parsed.blocks)
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for block_id in old_ids:
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conn.execute('DELETE FROM vec_blocks WHERE block_id=?', [block_id])
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conn.execute('UPDATE blocks SET embedding_local_only=? WHERE note_id=?', (int(parsed.embedding_local_only), parsed.note_id))
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conn.execute('INSERT OR REPLACE INTO host_projection VALUES (?,?,?)', (parsed.note_id, document['hash'], parsed.file_path))
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for file_id, task_id in task_links:
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conn.execute('UPDATE tasks SET note_id=? WHERE task_id=? AND note_id IS NULL', [file_id, task_id])
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if removed or changed:
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repository.set_index_meta({'workspace_vectors_pending': '1'}, conn=conn)
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finally:
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conn.close()
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async def refresh():
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async with vault_mutation_lock():
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work = asyncio.create_task(asyncio.to_thread(_refresh))
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# 即使请求被取消，也要保留投影门直到工作人员完成。
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cancelled = False
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while not work.done():
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try: await asyncio.shield(work)
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except asyncio.CancelledError: cancelled = True
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work.result()
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if cancelled: raise asyncio.CancelledError
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