4782badfd3
- Replace complex SQL with application logic to extract basenames - Use TypeScript path.split() instead of SQL string manipulation - Consistent with getOrCreateCollection() implementation - Avoids SQLite function compatibility issues Closes qmd-bx1 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
1668 lines
56 KiB
TypeScript
1668 lines
56 KiB
TypeScript
/**
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* QMD Store - Core data access and retrieval functions
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*
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* This module provides all database operations, search functions, and document
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* retrieval for QMD. It returns raw data structures that can be formatted by
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* CLI or MCP consumers.
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*
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* Usage:
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* const store = createStore("/path/to/db.sqlite");
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* // or use default path:
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* const store = createStore();
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*/
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import { Database } from "bun:sqlite";
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import { Glob } from "bun";
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import * as sqliteVec from "sqlite-vec";
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import {
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Ollama,
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getDefaultOllama,
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formatQueryForEmbedding,
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formatDocForEmbedding,
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type RerankDocument,
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} from "./llm";
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// =============================================================================
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// Configuration
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// =============================================================================
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const HOME = Bun.env.HOME || "/tmp";
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export const DEFAULT_EMBED_MODEL = "embeddinggemma";
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export const DEFAULT_RERANK_MODEL = "ExpedientFalcon/qwen3-reranker:0.6b-q8_0";
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export const DEFAULT_QUERY_MODEL = "qwen3:0.6b";
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export const DEFAULT_GLOB = "**/*.md";
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export const DEFAULT_MULTI_GET_MAX_BYTES = 10 * 1024; // 10KB
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// Re-export OLLAMA_URL for backwards compatibility
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export const OLLAMA_URL = getDefaultOllama().getBaseUrl();
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// Chunking: ~2000 tokens per chunk, ~3 bytes/token = 6KB
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const CHUNK_BYTE_SIZE = 6 * 1024;
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// =============================================================================
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// Path utilities
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// =============================================================================
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export function homedir(): string {
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return HOME;
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}
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export function resolve(...paths: string[]): string {
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let result = paths[0].startsWith('/') ? '' : Bun.env.PWD || process.cwd();
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for (const p of paths) {
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if (p.startsWith('/')) {
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result = p;
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} else {
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result = result + '/' + p;
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}
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}
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const parts = result.split('/').filter(Boolean);
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const normalized: string[] = [];
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for (const part of parts) {
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if (part === '..') normalized.pop();
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else if (part !== '.') normalized.push(part);
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}
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return '/' + normalized.join('/');
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}
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export function getDefaultDbPath(indexName: string = "index"): string {
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// Allow override via INDEX_PATH for testing
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if (Bun.env.INDEX_PATH) {
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return Bun.env.INDEX_PATH;
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}
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const cacheDir = Bun.env.XDG_CACHE_HOME || resolve(homedir(), ".cache");
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const qmdCacheDir = resolve(cacheDir, "qmd");
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try { Bun.spawnSync(["mkdir", "-p", qmdCacheDir]); } catch {}
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return resolve(qmdCacheDir, `${indexName}.sqlite`);
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}
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export function getPwd(): string {
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return process.env.PWD || process.cwd();
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}
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export function getRealPath(path: string): string {
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try {
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const result = Bun.spawnSync(["realpath", path]);
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if (result.success) {
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return result.stdout.toString().trim();
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}
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} catch {}
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return resolve(path);
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}
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// =============================================================================
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// Virtual Path Utilities (qmd://)
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// =============================================================================
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export type VirtualPath = {
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collectionName: string;
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path: string; // relative path within collection
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};
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/**
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* Parse a virtual path like "qmd://collection-name/path/to/file.md"
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* into its components.
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*/
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export function parseVirtualPath(virtualPath: string): VirtualPath | null {
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const match = virtualPath.match(/^qmd:\/\/([^\/]+)\/(.+)$/);
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if (!match) return null;
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return {
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collectionName: match[1],
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path: match[2],
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};
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}
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/**
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* Build a virtual path from collection name and relative path.
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*/
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export function buildVirtualPath(collectionName: string, path: string): string {
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return `qmd://${collectionName}/${path}`;
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}
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/**
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* Check if a path is a virtual path (starts with qmd://).
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*/
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export function isVirtualPath(path: string): boolean {
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return path.startsWith('qmd://');
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}
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/**
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* Resolve a virtual path to absolute filesystem path.
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*/
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export function resolveVirtualPath(db: Database, virtualPath: string): string | null {
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const parsed = parseVirtualPath(virtualPath);
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if (!parsed) return null;
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const coll = getCollectionByName(db, parsed.collectionName);
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if (!coll) return null;
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return resolve(coll.pwd, parsed.path);
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}
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/**
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* Convert an absolute filesystem path to a virtual path.
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* Returns null if the file is not in any indexed collection.
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*/
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export function toVirtualPath(db: Database, absolutePath: string): string | null {
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const doc = db.prepare(`
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SELECT c.name, d.path
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FROM documents d
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JOIN collections c ON c.id = d.collection_id
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WHERE c.pwd || '/' || d.path = ? AND d.active = 1
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LIMIT 1
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`).get(absolutePath) as { name: string; path: string } | null;
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if (!doc) return null;
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return buildVirtualPath(doc.name, doc.path);
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}
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// =============================================================================
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// Database initialization
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// =============================================================================
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// On macOS, use Homebrew's SQLite which supports extensions
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if (process.platform === "darwin") {
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const homebrewSqlitePath = "/opt/homebrew/opt/sqlite/lib/libsqlite3.dylib";
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try {
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if (Bun.file(homebrewSqlitePath).size > 0) {
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Database.setCustomSQLite(homebrewSqlitePath);
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}
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} catch {}
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}
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function initializeDatabase(db: Database): void {
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sqliteVec.load(db);
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db.exec("PRAGMA journal_mode = WAL");
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db.exec("PRAGMA foreign_keys = ON");
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// Check if we need to migrate from old schema
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const tables = db.prepare(`SELECT name FROM sqlite_master WHERE type='table'`).all() as { name: string }[];
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const tableNames = tables.map(t => t.name);
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const needsMigration = tableNames.includes('documents') && !tableNames.includes('content');
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if (needsMigration) {
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migrateToContentAddressable(db);
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return; // Migration will call initializeDatabase again
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}
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// Content-addressable storage - the source of truth for document content
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db.exec(`
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CREATE TABLE IF NOT EXISTS content (
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hash TEXT PRIMARY KEY,
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doc TEXT NOT NULL,
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created_at TEXT NOT NULL
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)
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`);
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// Collections table with name field
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db.exec(`
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CREATE TABLE IF NOT EXISTS collections (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL UNIQUE,
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pwd TEXT NOT NULL,
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glob_pattern TEXT NOT NULL,
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created_at TEXT NOT NULL,
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updated_at TEXT NOT NULL,
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UNIQUE(pwd, glob_pattern)
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)
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`);
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// Documents table - file system layer mapping virtual paths to content hashes
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db.exec(`
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CREATE TABLE IF NOT EXISTS documents (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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collection_id INTEGER NOT NULL,
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path TEXT NOT NULL,
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title TEXT NOT NULL,
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hash TEXT NOT NULL,
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created_at TEXT NOT NULL,
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modified_at TEXT NOT NULL,
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active INTEGER NOT NULL DEFAULT 1,
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FOREIGN KEY (collection_id) REFERENCES collections(id) ON DELETE CASCADE,
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FOREIGN KEY (hash) REFERENCES content(hash) ON DELETE CASCADE,
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UNIQUE(collection_id, path)
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)
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`);
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db.exec(`CREATE INDEX IF NOT EXISTS idx_documents_collection ON documents(collection_id, active)`);
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db.exec(`CREATE INDEX IF NOT EXISTS idx_documents_hash ON documents(hash)`);
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db.exec(`CREATE INDEX IF NOT EXISTS idx_documents_path ON documents(path, active)`);
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// Path-based context (collection-scoped, hierarchical)
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db.exec(`
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CREATE TABLE IF NOT EXISTS path_contexts (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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collection_id INTEGER NOT NULL,
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path_prefix TEXT NOT NULL,
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context TEXT NOT NULL,
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created_at TEXT NOT NULL,
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FOREIGN KEY (collection_id) REFERENCES collections(id) ON DELETE CASCADE,
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UNIQUE(collection_id, path_prefix)
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)
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`);
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db.exec(`CREATE INDEX IF NOT EXISTS idx_path_contexts_collection ON path_contexts(collection_id, path_prefix)`);
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// Cache table for Ollama API calls
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db.exec(`
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CREATE TABLE IF NOT EXISTS ollama_cache (
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hash TEXT PRIMARY KEY,
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result TEXT NOT NULL,
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created_at TEXT NOT NULL
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)
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`);
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// Content vectors
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const cvInfo = db.prepare(`PRAGMA table_info(content_vectors)`).all() as { name: string }[];
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const hasSeqColumn = cvInfo.some(col => col.name === 'seq');
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if (cvInfo.length > 0 && !hasSeqColumn) {
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db.exec(`DROP TABLE IF EXISTS content_vectors`);
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db.exec(`DROP TABLE IF EXISTS vectors_vec`);
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}
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db.exec(`
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CREATE TABLE IF NOT EXISTS content_vectors (
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hash TEXT NOT NULL,
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seq INTEGER NOT NULL DEFAULT 0,
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pos INTEGER NOT NULL DEFAULT 0,
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model TEXT NOT NULL,
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embedded_at TEXT NOT NULL,
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PRIMARY KEY (hash, seq)
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)
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`);
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// FTS - index path and content (joined from content table)
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db.exec(`
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CREATE VIRTUAL TABLE IF NOT EXISTS documents_fts USING fts5(
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path, body,
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tokenize='porter unicode61'
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)
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`);
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// Triggers to keep FTS in sync
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db.exec(`
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CREATE TRIGGER IF NOT EXISTS documents_ai AFTER INSERT ON documents BEGIN
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INSERT INTO documents_fts(rowid, path, body)
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SELECT new.id, new.path, c.doc
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FROM content c
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WHERE c.hash = new.hash;
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END
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`);
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db.exec(`
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CREATE TRIGGER IF NOT EXISTS documents_ad AFTER DELETE ON documents BEGIN
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DELETE FROM documents_fts WHERE rowid = old.id;
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END
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`);
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db.exec(`
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CREATE TRIGGER IF NOT EXISTS documents_au AFTER UPDATE ON documents BEGIN
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UPDATE documents_fts
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SET path = new.path,
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body = (SELECT doc FROM content WHERE hash = new.hash)
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WHERE rowid = new.id;
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END
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`);
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}
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function migrateToContentAddressable(db: Database): void {
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console.log("Migrating database to content-addressable schema...");
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// Start transaction
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db.exec("BEGIN TRANSACTION");
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try {
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// Rename old tables
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db.exec("ALTER TABLE documents RENAME TO documents_old");
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db.exec("ALTER TABLE collections RENAME TO collections_old");
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db.exec("ALTER TABLE path_contexts RENAME TO path_contexts_old");
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db.exec("DROP TABLE IF EXISTS documents_fts");
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db.exec("DROP TRIGGER IF EXISTS documents_ai");
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db.exec("DROP TRIGGER IF EXISTS documents_ad");
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db.exec("DROP TRIGGER IF EXISTS documents_au");
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// Create new schema
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db.exec(`
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CREATE TABLE content (
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hash TEXT PRIMARY KEY,
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doc TEXT NOT NULL,
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created_at TEXT NOT NULL
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)
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`);
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db.exec(`
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CREATE TABLE collections (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL UNIQUE,
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pwd TEXT NOT NULL,
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glob_pattern TEXT NOT NULL,
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created_at TEXT NOT NULL,
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updated_at TEXT NOT NULL,
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UNIQUE(pwd, glob_pattern)
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)
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`);
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db.exec(`
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CREATE TABLE documents (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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collection_id INTEGER NOT NULL,
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path TEXT NOT NULL,
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title TEXT NOT NULL,
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hash TEXT NOT NULL,
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created_at TEXT NOT NULL,
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modified_at TEXT NOT NULL,
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active INTEGER NOT NULL DEFAULT 1,
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FOREIGN KEY (collection_id) REFERENCES collections(id) ON DELETE CASCADE,
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FOREIGN KEY (hash) REFERENCES content(hash) ON DELETE CASCADE,
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UNIQUE(collection_id, path)
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)
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`);
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db.exec(`
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CREATE TABLE path_contexts (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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collection_id INTEGER NOT NULL,
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path_prefix TEXT NOT NULL,
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context TEXT NOT NULL,
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created_at TEXT NOT NULL,
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FOREIGN KEY (collection_id) REFERENCES collections(id) ON DELETE CASCADE,
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UNIQUE(collection_id, path_prefix)
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)
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`);
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// Migrate data: Extract unique content hashes
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console.log("Migrating content...");
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db.exec(`
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INSERT INTO content (hash, doc, created_at)
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SELECT hash, body, MIN(created_at) as created_at
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FROM documents_old
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WHERE active = 1
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GROUP BY hash
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`);
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// Migrate collections: generate names from pwd basename
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console.log("Migrating collections...");
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// First insert with pwd as temporary name
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db.exec(`
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INSERT INTO collections (id, name, pwd, glob_pattern, created_at, updated_at)
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SELECT
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id,
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pwd as name,
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pwd,
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glob_pattern,
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created_at,
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created_at as updated_at
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FROM collections_old
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`);
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// Then update names to basenames using application logic
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const collections = db.prepare(`SELECT id, pwd FROM collections`).all() as { id: number; pwd: string }[];
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for (const coll of collections) {
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const parts = coll.pwd.split('/').filter(Boolean);
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const name = parts[parts.length - 1] || 'root';
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db.prepare(`UPDATE collections SET name = ? WHERE id = ?`).run(name, coll.id);
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}
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// Handle duplicate collection names by appending collection_id
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const duplicates = db.prepare(`
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SELECT name, COUNT(*) as cnt
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FROM collections
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GROUP BY name
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HAVING cnt > 1
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`).all() as { name: string; cnt: number }[];
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for (const dup of duplicates) {
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const rows = db.prepare(`SELECT id FROM collections WHERE name = ? ORDER BY id`).all(dup.name) as { id: number }[];
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for (let i = 1; i < rows.length; i++) {
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db.prepare(`UPDATE collections SET name = ? WHERE id = ?`).run(`${dup.name}-${rows[i].id}`, rows[i].id);
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}
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}
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|
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// Migrate documents: convert filepath to relative path within collection
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console.log("Migrating documents...");
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const oldDocs = db.prepare(`
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SELECT d.id, d.collection_id, d.filepath, d.title, d.hash, d.created_at, d.modified_at, c.pwd
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FROM documents_old d
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JOIN collections c ON c.id = d.collection_id
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WHERE d.active = 1
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`).all() as Array<{
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id: number;
|
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collection_id: number;
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filepath: string;
|
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title: string;
|
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hash: string;
|
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created_at: string;
|
|
modified_at: string;
|
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pwd: string;
|
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}>;
|
|
|
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const insertDoc = db.prepare(`
|
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INSERT INTO documents (collection_id, path, title, hash, created_at, modified_at, active)
|
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VALUES (?, ?, ?, ?, ?, ?, 1)
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`);
|
|
|
|
for (const doc of oldDocs) {
|
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// Convert absolute filepath to relative path within collection
|
|
let path = doc.filepath;
|
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if (path.startsWith(doc.pwd + '/')) {
|
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path = path.slice(doc.pwd.length + 1);
|
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} else if (path.startsWith(doc.pwd)) {
|
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path = path.slice(doc.pwd.length);
|
|
}
|
|
// Remove leading slash if present
|
|
path = path.replace(/^\/+/, '');
|
|
|
|
try {
|
|
insertDoc.run(doc.collection_id, path, doc.title, doc.hash, doc.created_at, doc.modified_at);
|
|
} catch (e) {
|
|
console.warn(`Skipping duplicate path: ${path} in collection ${doc.collection_id}`);
|
|
}
|
|
}
|
|
|
|
// Migrate path_contexts: associate with collections based on path prefix
|
|
console.log("Migrating path contexts...");
|
|
const oldContexts = db.prepare(`SELECT * FROM path_contexts_old`).all() as Array<{
|
|
path_prefix: string;
|
|
context: string;
|
|
created_at: string;
|
|
}>;
|
|
|
|
const insertContext = db.prepare(`
|
|
INSERT INTO path_contexts (collection_id, path_prefix, context, created_at)
|
|
VALUES (?, ?, ?, ?)
|
|
`);
|
|
|
|
const allCollections = db.prepare(`SELECT id, pwd FROM collections`).all() as Array<{ id: number; pwd: string }>;
|
|
|
|
for (const ctx of oldContexts) {
|
|
// Find collection(s) that match this path prefix
|
|
for (const coll of allCollections) {
|
|
if (ctx.path_prefix.startsWith(coll.pwd)) {
|
|
// Convert absolute path_prefix to relative within collection
|
|
let relPath = ctx.path_prefix;
|
|
if (relPath.startsWith(coll.pwd + '/')) {
|
|
relPath = relPath.slice(coll.pwd.length + 1);
|
|
} else if (relPath.startsWith(coll.pwd)) {
|
|
relPath = relPath.slice(coll.pwd.length);
|
|
}
|
|
relPath = relPath.replace(/^\/+/, '');
|
|
|
|
try {
|
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insertContext.run(coll.id, relPath, ctx.context, ctx.created_at);
|
|
} catch (e) {
|
|
// Ignore duplicates
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Drop old tables
|
|
db.exec("DROP TABLE documents_old");
|
|
db.exec("DROP TABLE collections_old");
|
|
db.exec("DROP TABLE path_contexts_old");
|
|
|
|
// Recreate FTS and triggers
|
|
db.exec(`
|
|
CREATE VIRTUAL TABLE documents_fts USING fts5(
|
|
path, body,
|
|
tokenize='porter unicode61'
|
|
)
|
|
`);
|
|
|
|
db.exec(`
|
|
CREATE TRIGGER documents_ai AFTER INSERT ON documents BEGIN
|
|
INSERT INTO documents_fts(rowid, path, body)
|
|
SELECT new.id, new.path, c.doc
|
|
FROM content c
|
|
WHERE c.hash = new.hash;
|
|
END
|
|
`);
|
|
|
|
db.exec(`
|
|
CREATE TRIGGER documents_ad AFTER DELETE ON documents BEGIN
|
|
DELETE FROM documents_fts WHERE rowid = old.id;
|
|
END
|
|
`);
|
|
|
|
db.exec(`
|
|
CREATE TRIGGER documents_au AFTER UPDATE ON documents BEGIN
|
|
UPDATE documents_fts
|
|
SET path = new.path,
|
|
body = (SELECT doc FROM content WHERE hash = new.hash)
|
|
WHERE rowid = new.id;
|
|
END
|
|
`);
|
|
|
|
// Populate FTS from migrated data
|
|
console.log("Rebuilding full-text search index...");
|
|
db.exec(`
|
|
INSERT INTO documents_fts(rowid, path, body)
|
|
SELECT d.id, d.path, c.doc
|
|
FROM documents d
|
|
JOIN content c ON c.hash = d.hash
|
|
WHERE d.active = 1
|
|
`);
|
|
|
|
// Create indexes
|
|
db.exec(`CREATE INDEX idx_documents_collection ON documents(collection_id, active)`);
|
|
db.exec(`CREATE INDEX idx_documents_hash ON documents(hash)`);
|
|
db.exec(`CREATE INDEX idx_documents_path ON documents(path, active)`);
|
|
db.exec(`CREATE INDEX idx_path_contexts_collection ON path_contexts(collection_id, path_prefix)`);
|
|
|
|
db.exec("COMMIT");
|
|
console.log("Migration complete!");
|
|
|
|
} catch (e) {
|
|
db.exec("ROLLBACK");
|
|
console.error("Migration failed:", e);
|
|
throw e;
|
|
}
|
|
}
|
|
|
|
function ensureVecTableInternal(db: Database, dimensions: number): void {
|
|
const tableInfo = db.prepare(`SELECT sql FROM sqlite_master WHERE type='table' AND name='vectors_vec'`).get() as { sql: string } | null;
|
|
if (tableInfo) {
|
|
const match = tableInfo.sql.match(/float\[(\d+)\]/);
|
|
const hasHashSeq = tableInfo.sql.includes('hash_seq');
|
|
if (match && parseInt(match[1]) === dimensions && hasHashSeq) return;
|
|
db.exec("DROP TABLE IF EXISTS vectors_vec");
|
|
}
|
|
db.exec(`CREATE VIRTUAL TABLE vectors_vec USING vec0(hash_seq TEXT PRIMARY KEY, embedding float[${dimensions}])`);
|
|
}
|
|
|
|
// =============================================================================
|
|
// Store Factory
|
|
// =============================================================================
|
|
|
|
export type Store = {
|
|
db: Database;
|
|
dbPath: string;
|
|
close: () => void;
|
|
ensureVecTable: (dimensions: number) => void;
|
|
|
|
// Index health
|
|
getHashesNeedingEmbedding: () => number;
|
|
getIndexHealth: () => IndexHealthInfo;
|
|
getStatus: () => IndexStatus;
|
|
|
|
// Caching
|
|
getCacheKey: typeof getCacheKey;
|
|
getCachedResult: (cacheKey: string) => string | null;
|
|
setCachedResult: (cacheKey: string, result: string) => void;
|
|
clearCache: () => void;
|
|
|
|
// Context
|
|
getContextForFile: (filepath: string) => string | null;
|
|
getContextForPath: (collectionId: number, path: string) => string | null;
|
|
getCollectionIdByName: (name: string) => number | null;
|
|
getCollectionByName: (name: string) => { id: number; name: string; pwd: string; glob_pattern: string } | null;
|
|
|
|
// Virtual paths
|
|
parseVirtualPath: typeof parseVirtualPath;
|
|
buildVirtualPath: typeof buildVirtualPath;
|
|
isVirtualPath: typeof isVirtualPath;
|
|
resolveVirtualPath: (virtualPath: string) => string | null;
|
|
toVirtualPath: (absolutePath: string) => string | null;
|
|
|
|
// Search
|
|
searchFTS: (query: string, limit?: number, collectionId?: number) => SearchResult[];
|
|
searchVec: (query: string, model: string, limit?: number, collectionId?: number) => Promise<SearchResult[]>;
|
|
|
|
// Query expansion & reranking
|
|
expandQuery: (query: string, model?: string) => Promise<string[]>;
|
|
rerank: (query: string, documents: { file: string; text: string }[], model?: string) => Promise<{ file: string; score: number }[]>;
|
|
|
|
// Document retrieval
|
|
findDocument: (filename: string, options?: { includeBody?: boolean }) => DocumentResult | DocumentNotFound;
|
|
getDocumentBody: (doc: DocumentResult | { filepath: string }, fromLine?: number, maxLines?: number) => string | null;
|
|
findDocuments: (pattern: string, options?: { includeBody?: boolean; maxBytes?: number }) => { docs: MultiGetResult[]; errors: string[] };
|
|
|
|
// Legacy compatibility
|
|
getDocument: (filename: string, fromLine?: number, maxLines?: number) => (DocumentResult & { body: string }) | DocumentNotFound;
|
|
getMultipleDocuments: (pattern: string, maxLines?: number, maxBytes?: number) => { files: MultiGetFile[]; errors: string[] };
|
|
|
|
// Fuzzy matching
|
|
findSimilarFiles: (query: string, maxDistance?: number, limit?: number) => string[];
|
|
matchFilesByGlob: (pattern: string) => { filepath: string; displayPath: string; bodyLength: number }[];
|
|
};
|
|
|
|
/**
|
|
* Create a new store instance with the given database path.
|
|
* If no path is provided, uses the default path (~/.cache/qmd/index.sqlite).
|
|
*
|
|
* @param dbPath - Path to the SQLite database file
|
|
* @returns Store instance with all methods bound to the database
|
|
*/
|
|
export function createStore(dbPath?: string): Store {
|
|
const resolvedPath = dbPath || getDefaultDbPath();
|
|
const db = new Database(resolvedPath);
|
|
initializeDatabase(db);
|
|
|
|
return {
|
|
db,
|
|
dbPath: resolvedPath,
|
|
close: () => db.close(),
|
|
ensureVecTable: (dimensions: number) => ensureVecTableInternal(db, dimensions),
|
|
|
|
// Index health
|
|
getHashesNeedingEmbedding: () => getHashesNeedingEmbedding(db),
|
|
getIndexHealth: () => getIndexHealth(db),
|
|
getStatus: () => getStatus(db),
|
|
|
|
// Caching
|
|
getCacheKey,
|
|
getCachedResult: (cacheKey: string) => getCachedResult(db, cacheKey),
|
|
setCachedResult: (cacheKey: string, result: string) => setCachedResult(db, cacheKey, result),
|
|
clearCache: () => clearCache(db),
|
|
|
|
// Context
|
|
getContextForFile: (filepath: string) => getContextForFile(db, filepath),
|
|
getContextForPath: (collectionId: number, path: string) => getContextForPath(db, collectionId, path),
|
|
getCollectionIdByName: (name: string) => getCollectionIdByName(db, name),
|
|
getCollectionByName: (name: string) => getCollectionByName(db, name),
|
|
|
|
// Virtual paths
|
|
parseVirtualPath,
|
|
buildVirtualPath,
|
|
isVirtualPath,
|
|
resolveVirtualPath: (virtualPath: string) => resolveVirtualPath(db, virtualPath),
|
|
toVirtualPath: (absolutePath: string) => toVirtualPath(db, absolutePath),
|
|
|
|
// Search
|
|
searchFTS: (query: string, limit?: number, collectionId?: number) => searchFTS(db, query, limit, collectionId),
|
|
searchVec: (query: string, model: string, limit?: number, collectionId?: number) => searchVec(db, query, model, limit, collectionId),
|
|
|
|
// Query expansion & reranking
|
|
expandQuery: (query: string, model?: string) => expandQuery(query, model, db),
|
|
rerank: (query: string, documents: { file: string; text: string }[], model?: string) => rerank(query, documents, model, db),
|
|
|
|
// Document retrieval
|
|
findDocument: (filename: string, options?: { includeBody?: boolean }) => findDocument(db, filename, options),
|
|
getDocumentBody: (doc: DocumentResult | { filepath: string }, fromLine?: number, maxLines?: number) => getDocumentBody(db, doc, fromLine, maxLines),
|
|
findDocuments: (pattern: string, options?: { includeBody?: boolean; maxBytes?: number }) => findDocuments(db, pattern, options),
|
|
|
|
// Legacy compatibility
|
|
getDocument: (filename: string, fromLine?: number, maxLines?: number) => getDocument(db, filename, fromLine, maxLines),
|
|
getMultipleDocuments: (pattern: string, maxLines?: number, maxBytes?: number) => getMultipleDocuments(db, pattern, maxLines, maxBytes),
|
|
|
|
// Fuzzy matching
|
|
findSimilarFiles: (query: string, maxDistance?: number, limit?: number) => findSimilarFiles(db, query, maxDistance, limit),
|
|
matchFilesByGlob: (pattern: string) => matchFilesByGlob(db, pattern),
|
|
};
|
|
}
|
|
|
|
// =============================================================================
|
|
// Legacy compatibility - will be removed
|
|
// =============================================================================
|
|
|
|
let _legacyDb: Database | null = null;
|
|
let _legacyDbPath: string | null = null;
|
|
|
|
/** @deprecated Use createStore() instead */
|
|
export function setCustomIndexName(name: string | null): void {
|
|
_legacyDbPath = name ? getDefaultDbPath(name) : null;
|
|
_legacyDb = null; // Reset so next getDb() creates new connection
|
|
}
|
|
|
|
/** @deprecated Use createStore() instead */
|
|
export function getDbPath(): string {
|
|
return _legacyDbPath || getDefaultDbPath();
|
|
}
|
|
|
|
/** @deprecated Use createStore() instead */
|
|
export function getDb(): Database {
|
|
if (!_legacyDb) {
|
|
_legacyDb = new Database(getDbPath());
|
|
initializeDatabase(_legacyDb);
|
|
}
|
|
return _legacyDb;
|
|
}
|
|
|
|
/** @deprecated Use store.db.close() instead. Closes the legacy db and resets singleton. */
|
|
export function closeDb(): void {
|
|
if (_legacyDb) {
|
|
_legacyDb.close();
|
|
_legacyDb = null;
|
|
}
|
|
}
|
|
|
|
/** @deprecated Use store.ensureVecTable() instead */
|
|
export function ensureVecTable(db: Database, dimensions: number): void {
|
|
ensureVecTableInternal(db, dimensions);
|
|
}
|
|
|
|
// =============================================================================
|
|
// Core Document Type
|
|
// =============================================================================
|
|
|
|
/**
|
|
* Unified document result type with all metadata.
|
|
* Body is optional - use getDocumentBody() to load it separately if needed.
|
|
*/
|
|
export type DocumentResult = {
|
|
filepath: string; // Full filesystem path
|
|
displayPath: string; // Short display path (e.g., "docs/readme.md")
|
|
title: string; // Document title (from first heading or filename)
|
|
context: string | null; // Folder context description if configured
|
|
hash: string; // Content hash for caching/change detection
|
|
collectionId: number; // Parent collection ID
|
|
modifiedAt: string; // Last modification timestamp
|
|
bodyLength: number; // Body length in bytes (useful before loading)
|
|
body?: string; // Document body (optional, load with getDocumentBody)
|
|
};
|
|
|
|
/**
|
|
* Search result extends DocumentResult with score and source info
|
|
*/
|
|
export type SearchResult = DocumentResult & {
|
|
score: number; // Relevance score (0-1)
|
|
source: "fts" | "vec"; // Search source (full-text or vector)
|
|
chunkPos?: number; // Character position of matching chunk (for vector search)
|
|
};
|
|
|
|
/**
|
|
* Ranked result for RRF fusion (simplified, used internally)
|
|
*/
|
|
export type RankedResult = {
|
|
file: string;
|
|
displayPath: string;
|
|
title: string;
|
|
body: string;
|
|
score: number;
|
|
};
|
|
|
|
/**
|
|
* Error result when document is not found
|
|
*/
|
|
export type DocumentNotFound = {
|
|
error: "not_found";
|
|
query: string;
|
|
similarFiles: string[];
|
|
};
|
|
|
|
/**
|
|
* Result from multi-get operations
|
|
*/
|
|
export type MultiGetResult = {
|
|
doc: DocumentResult;
|
|
skipped: false;
|
|
} | {
|
|
doc: Pick<DocumentResult, "filepath" | "displayPath">;
|
|
skipped: true;
|
|
skipReason: string;
|
|
};
|
|
|
|
export type CollectionInfo = {
|
|
id: number;
|
|
path: string;
|
|
pattern: string;
|
|
documents: number;
|
|
lastUpdated: string;
|
|
};
|
|
|
|
export type IndexStatus = {
|
|
totalDocuments: number;
|
|
needsEmbedding: number;
|
|
hasVectorIndex: boolean;
|
|
collections: CollectionInfo[];
|
|
};
|
|
|
|
// =============================================================================
|
|
// Index health
|
|
// =============================================================================
|
|
|
|
export function getHashesNeedingEmbedding(db: Database): number {
|
|
const result = db.prepare(`
|
|
SELECT COUNT(DISTINCT d.hash) as count
|
|
FROM documents d
|
|
LEFT JOIN content_vectors v ON d.hash = v.hash AND v.seq = 0
|
|
WHERE d.active = 1 AND v.hash IS NULL
|
|
`).get() as { count: number };
|
|
return result.count;
|
|
}
|
|
|
|
export type IndexHealthInfo = {
|
|
needsEmbedding: number;
|
|
totalDocs: number;
|
|
daysStale: number | null;
|
|
};
|
|
|
|
export function getIndexHealth(db: Database): IndexHealthInfo {
|
|
const needsEmbedding = getHashesNeedingEmbedding(db);
|
|
const totalDocs = (db.prepare(`SELECT COUNT(*) as count FROM documents WHERE active = 1`).get() as { count: number }).count;
|
|
|
|
const mostRecent = db.prepare(`SELECT MAX(modified_at) as latest FROM documents WHERE active = 1`).get() as { latest: string | null };
|
|
let daysStale: number | null = null;
|
|
if (mostRecent?.latest) {
|
|
const lastUpdate = new Date(mostRecent.latest);
|
|
daysStale = Math.floor((Date.now() - lastUpdate.getTime()) / (24 * 60 * 60 * 1000));
|
|
}
|
|
|
|
return { needsEmbedding, totalDocs, daysStale };
|
|
}
|
|
|
|
// =============================================================================
|
|
// Caching
|
|
// =============================================================================
|
|
|
|
export function getCacheKey(url: string, body: object): string {
|
|
const hash = new Bun.CryptoHasher("sha256");
|
|
hash.update(url);
|
|
hash.update(JSON.stringify(body));
|
|
return hash.digest("hex");
|
|
}
|
|
|
|
export function getCachedResult(db: Database, cacheKey: string): string | null {
|
|
const row = db.prepare(`SELECT result FROM ollama_cache WHERE hash = ?`).get(cacheKey) as { result: string } | null;
|
|
return row?.result || null;
|
|
}
|
|
|
|
export function setCachedResult(db: Database, cacheKey: string, result: string): void {
|
|
const now = new Date().toISOString();
|
|
db.prepare(`INSERT OR REPLACE INTO ollama_cache (hash, result, created_at) VALUES (?, ?, ?)`).run(cacheKey, result, now);
|
|
if (Math.random() < 0.01) {
|
|
db.exec(`DELETE FROM ollama_cache WHERE hash NOT IN (SELECT hash FROM ollama_cache ORDER BY created_at DESC LIMIT 1000)`);
|
|
}
|
|
}
|
|
|
|
export function clearCache(db: Database): void {
|
|
db.exec(`DELETE FROM ollama_cache`);
|
|
}
|
|
|
|
// =============================================================================
|
|
// Document helpers
|
|
// =============================================================================
|
|
|
|
export async function hashContent(content: string): Promise<string> {
|
|
const hash = new Bun.CryptoHasher("sha256");
|
|
hash.update(content);
|
|
return hash.digest("hex");
|
|
}
|
|
|
|
export function extractTitle(content: string, filename: string): string {
|
|
const match = content.match(/^##?\s+(.+)$/m);
|
|
if (match) {
|
|
const title = match[1].trim();
|
|
if (title === "📝 Notes" || title === "Notes") {
|
|
const nextMatch = content.match(/^##\s+(.+)$/m);
|
|
if (nextMatch) return nextMatch[1].trim();
|
|
}
|
|
return title;
|
|
}
|
|
return filename.replace(/\.md$/, "").split("/").pop() || filename;
|
|
}
|
|
|
|
// Re-export from llm.ts for backwards compatibility
|
|
export { formatQueryForEmbedding, formatDocForEmbedding };
|
|
|
|
export function chunkDocument(content: string, maxBytes: number = CHUNK_BYTE_SIZE): { text: string; pos: number }[] {
|
|
const encoder = new TextEncoder();
|
|
const totalBytes = encoder.encode(content).length;
|
|
|
|
if (totalBytes <= maxBytes) {
|
|
return [{ text: content, pos: 0 }];
|
|
}
|
|
|
|
const chunks: { text: string; pos: number }[] = [];
|
|
let charPos = 0;
|
|
|
|
while (charPos < content.length) {
|
|
let endPos = charPos;
|
|
let byteCount = 0;
|
|
|
|
while (endPos < content.length && byteCount < maxBytes) {
|
|
const charBytes = encoder.encode(content[endPos]).length;
|
|
if (byteCount + charBytes > maxBytes) break;
|
|
byteCount += charBytes;
|
|
endPos++;
|
|
}
|
|
|
|
if (endPos < content.length && endPos > charPos) {
|
|
const slice = content.slice(charPos, endPos);
|
|
const paragraphBreak = slice.lastIndexOf('\n\n');
|
|
const sentenceEnd = Math.max(
|
|
slice.lastIndexOf('. '),
|
|
slice.lastIndexOf('.\n'),
|
|
slice.lastIndexOf('? '),
|
|
slice.lastIndexOf('?\n'),
|
|
slice.lastIndexOf('! '),
|
|
slice.lastIndexOf('!\n')
|
|
);
|
|
const lineBreak = slice.lastIndexOf('\n');
|
|
const spaceBreak = slice.lastIndexOf(' ');
|
|
|
|
let breakPoint = -1;
|
|
if (paragraphBreak > slice.length * 0.5) {
|
|
breakPoint = paragraphBreak + 2;
|
|
} else if (sentenceEnd > slice.length * 0.5) {
|
|
breakPoint = sentenceEnd + 2;
|
|
} else if (lineBreak > slice.length * 0.3) {
|
|
breakPoint = lineBreak + 1;
|
|
} else if (spaceBreak > slice.length * 0.3) {
|
|
breakPoint = spaceBreak + 1;
|
|
}
|
|
|
|
if (breakPoint > 0) {
|
|
endPos = charPos + breakPoint;
|
|
}
|
|
}
|
|
|
|
if (endPos <= charPos) {
|
|
endPos = charPos + 1;
|
|
}
|
|
|
|
chunks.push({ text: content.slice(charPos, endPos), pos: charPos });
|
|
charPos = endPos;
|
|
}
|
|
|
|
return chunks;
|
|
}
|
|
|
|
// =============================================================================
|
|
// Fuzzy matching
|
|
// =============================================================================
|
|
|
|
function levenshtein(a: string, b: string): number {
|
|
const m = a.length, n = b.length;
|
|
if (m === 0) return n;
|
|
if (n === 0) return m;
|
|
const dp: number[][] = Array.from({ length: m + 1 }, (_, i) => [i]);
|
|
for (let j = 1; j <= n; j++) dp[0][j] = j;
|
|
for (let i = 1; i <= m; i++) {
|
|
for (let j = 1; j <= n; j++) {
|
|
const cost = a[i - 1] === b[j - 1] ? 0 : 1;
|
|
dp[i][j] = Math.min(dp[i - 1][j] + 1, dp[i][j - 1] + 1, dp[i - 1][j - 1] + cost);
|
|
}
|
|
}
|
|
return dp[m][n];
|
|
}
|
|
|
|
export function findSimilarFiles(db: Database, query: string, maxDistance: number = 3, limit: number = 5): string[] {
|
|
const allFiles = db.prepare(`SELECT display_path FROM documents WHERE active = 1`).all() as { display_path: string }[];
|
|
const queryLower = query.toLowerCase();
|
|
const scored = allFiles
|
|
.map(f => ({ path: f.display_path, dist: levenshtein(f.display_path.toLowerCase(), queryLower) }))
|
|
.filter(f => f.dist <= maxDistance)
|
|
.sort((a, b) => a.dist - b.dist)
|
|
.slice(0, limit);
|
|
return scored.map(f => f.path);
|
|
}
|
|
|
|
export function matchFilesByGlob(db: Database, pattern: string): { filepath: string; displayPath: string; bodyLength: number }[] {
|
|
const allFiles = db.prepare(`
|
|
SELECT
|
|
'qmd://' || c.name || '/' || d.path as virtual_path,
|
|
LENGTH(content.doc) as body_length,
|
|
d.collection_id,
|
|
d.path
|
|
FROM documents d
|
|
JOIN collections c ON c.id = d.collection_id
|
|
JOIN content ON content.hash = d.hash
|
|
WHERE d.active = 1
|
|
`).all() as { virtual_path: string; body_length: number; collection_id: number; path: string }[];
|
|
|
|
const glob = new Glob(pattern);
|
|
return allFiles
|
|
.filter(f => glob.match(f.virtual_path) || glob.match(f.path))
|
|
.map(f => ({
|
|
filepath: f.virtual_path, // Use virtual path as filepath
|
|
displayPath: f.virtual_path,
|
|
bodyLength: f.body_length
|
|
}));
|
|
}
|
|
|
|
// =============================================================================
|
|
// Context
|
|
// =============================================================================
|
|
|
|
/**
|
|
* Get context for a file path using hierarchical inheritance.
|
|
* Contexts are collection-scoped and inherit from parent directories.
|
|
* For example, context at "/talks" applies to "/talks/2024/keynote.md".
|
|
*
|
|
* @param db Database instance
|
|
* @param collectionId Collection ID
|
|
* @param path Relative path within the collection
|
|
* @returns Context string or null if no context is defined
|
|
*/
|
|
export function getContextForPath(db: Database, collectionId: number, path: string): string | null {
|
|
// Find the most specific (longest) matching path prefix for this collection
|
|
const result = db.prepare(`
|
|
SELECT context FROM path_contexts
|
|
WHERE collection_id = ?
|
|
AND (? LIKE path_prefix || '/%' OR ? = path_prefix OR path_prefix = '')
|
|
ORDER BY LENGTH(path_prefix) DESC
|
|
LIMIT 1
|
|
`).get(collectionId, path, path) as { context: string } | null;
|
|
return result?.context || null;
|
|
}
|
|
|
|
/**
|
|
* Legacy function for backward compatibility - resolves filepath to collection+path first
|
|
*/
|
|
export function getContextForFile(db: Database, filepath: string): string | null {
|
|
// Try to find the document to get its collection_id and path
|
|
const doc = db.prepare(`
|
|
SELECT d.collection_id, d.path
|
|
FROM documents d
|
|
JOIN collections c ON c.id = d.collection_id
|
|
WHERE c.pwd || '/' || d.path = ? AND d.active = 1
|
|
LIMIT 1
|
|
`).get(filepath) as { collection_id: number; path: string } | null;
|
|
|
|
if (!doc) return null;
|
|
return getContextForPath(db, doc.collection_id, doc.path);
|
|
}
|
|
|
|
/**
|
|
* Get collection ID by its name (exact match).
|
|
*/
|
|
export function getCollectionIdByName(db: Database, name: string): number | null {
|
|
const result = db.prepare(`
|
|
SELECT id FROM collections
|
|
WHERE name = ?
|
|
LIMIT 1
|
|
`).get(name) as { id: number } | null;
|
|
return result?.id || null;
|
|
}
|
|
|
|
/**
|
|
* Get collection by name.
|
|
*/
|
|
export function getCollectionByName(db: Database, name: string): { id: number; name: string; pwd: string; glob_pattern: string } | null {
|
|
const result = db.prepare(`
|
|
SELECT id, name, pwd, glob_pattern FROM collections
|
|
WHERE name = ?
|
|
LIMIT 1
|
|
`).get(name) as { id: number; name: string; pwd: string; glob_pattern: string } | null;
|
|
return result;
|
|
}
|
|
|
|
// =============================================================================
|
|
// FTS Search
|
|
// =============================================================================
|
|
|
|
function sanitizeFTS5Term(term: string): string {
|
|
return term.replace(/[^\p{L}\p{N}']/gu, '').toLowerCase();
|
|
}
|
|
|
|
function buildFTS5Query(query: string): string | null {
|
|
const terms = query.split(/\s+/)
|
|
.map(t => sanitizeFTS5Term(t))
|
|
.filter(t => t.length > 0);
|
|
if (terms.length === 0) return null;
|
|
if (terms.length === 1) return `"${terms[0]}"*`;
|
|
return terms.map(t => `"${t}"*`).join(' AND ');
|
|
}
|
|
|
|
export function searchFTS(db: Database, query: string, limit: number = 20, collectionId?: number): SearchResult[] {
|
|
const ftsQuery = buildFTS5Query(query);
|
|
if (!ftsQuery) return [];
|
|
|
|
let sql = `
|
|
SELECT
|
|
'qmd://' || c.name || '/' || d.path as filepath,
|
|
'qmd://' || c.name || '/' || d.path as display_path,
|
|
d.title,
|
|
content.doc as body,
|
|
bm25(documents_fts, 10.0, 1.0) as score
|
|
FROM documents_fts f
|
|
JOIN documents d ON d.id = f.rowid
|
|
JOIN collections c ON c.id = d.collection_id
|
|
JOIN content ON content.hash = d.hash
|
|
WHERE documents_fts MATCH ? AND d.active = 1
|
|
`;
|
|
const params: (string | number)[] = [ftsQuery];
|
|
|
|
if (collectionId !== undefined) {
|
|
sql += ` AND d.collection_id = ?`;
|
|
params.push(collectionId);
|
|
}
|
|
|
|
sql += ` ORDER BY score LIMIT ?`;
|
|
params.push(limit);
|
|
|
|
const rows = db.prepare(sql).all(...params) as { filepath: string; display_path: string; title: string; body: string; score: number }[];
|
|
|
|
const maxScore = rows.length > 0 ? Math.max(...rows.map(r => Math.abs(r.score))) : 1;
|
|
return rows.map(row => ({
|
|
file: row.filepath,
|
|
displayPath: row.display_path,
|
|
title: row.title,
|
|
body: row.body,
|
|
score: Math.abs(row.score) / maxScore,
|
|
source: "fts" as const,
|
|
}));
|
|
}
|
|
|
|
// =============================================================================
|
|
// Vector Search
|
|
// =============================================================================
|
|
|
|
export async function searchVec(db: Database, query: string, model: string, limit: number = 20, collectionId?: number): Promise<SearchResult[]> {
|
|
const tableExists = db.prepare(`SELECT name FROM sqlite_master WHERE type='table' AND name='vectors_vec'`).get();
|
|
if (!tableExists) return [];
|
|
|
|
const embedding = await getEmbedding(query, model, true);
|
|
if (!embedding) return [];
|
|
|
|
// sqlite-vec requires "k = ?" for KNN queries
|
|
let sql = `
|
|
SELECT
|
|
v.hash_seq,
|
|
v.distance,
|
|
'qmd://' || c.name || '/' || d.path as filepath,
|
|
'qmd://' || c.name || '/' || d.path as display_path,
|
|
d.title,
|
|
content.doc as body,
|
|
cv.pos
|
|
FROM vectors_vec v
|
|
JOIN content_vectors cv ON cv.hash || '_' || cv.seq = v.hash_seq
|
|
JOIN documents d ON d.hash = cv.hash AND d.active = 1
|
|
JOIN collections c ON c.id = d.collection_id
|
|
JOIN content ON content.hash = d.hash
|
|
WHERE v.embedding MATCH ? AND k = ?
|
|
`;
|
|
|
|
if (collectionId !== undefined) {
|
|
sql += ` AND d.collection_id = ${collectionId}`;
|
|
}
|
|
|
|
sql += ` ORDER BY v.distance`;
|
|
|
|
const rows = db.prepare(sql).all(new Float32Array(embedding), limit * 3) as { hash_seq: string; distance: number; filepath: string; display_path: string; title: string; body: string; pos: number }[];
|
|
|
|
const seen = new Map<string, { row: typeof rows[0]; bestDist: number }>();
|
|
for (const row of rows) {
|
|
const existing = seen.get(row.filepath);
|
|
if (!existing || row.distance < existing.bestDist) {
|
|
seen.set(row.filepath, { row, bestDist: row.distance });
|
|
}
|
|
}
|
|
|
|
return Array.from(seen.values())
|
|
.sort((a, b) => a.bestDist - b.bestDist)
|
|
.slice(0, limit)
|
|
.map(({ row }) => ({
|
|
file: row.filepath,
|
|
displayPath: row.display_path,
|
|
title: row.title,
|
|
body: row.body,
|
|
score: 1 / (1 + row.distance),
|
|
source: "vec" as const,
|
|
chunkPos: row.pos,
|
|
}));
|
|
}
|
|
|
|
// =============================================================================
|
|
// Embeddings
|
|
// =============================================================================
|
|
|
|
async function getEmbedding(text: string, model: string, isQuery: boolean): Promise<number[] | null> {
|
|
const ollama = getDefaultOllama();
|
|
const result = await ollama.embed(text, { model, isQuery });
|
|
return result?.embedding || null;
|
|
}
|
|
|
|
// =============================================================================
|
|
// Query expansion
|
|
// =============================================================================
|
|
|
|
export async function expandQuery(query: string, model: string = DEFAULT_QUERY_MODEL, db: Database): Promise<string[]> {
|
|
// Check cache first
|
|
const cacheKey = getCacheKey("expandQuery", { query, model });
|
|
const cached = getCachedResult(db, cacheKey);
|
|
if (cached) {
|
|
const lines = cached.split('\n').map(l => l.trim()).filter(l => l.length > 0);
|
|
return [query, ...lines.slice(0, 2)];
|
|
}
|
|
|
|
const ollama = getDefaultOllama();
|
|
const results = await ollama.expandQuery(query, model, 2);
|
|
|
|
// Cache the expanded queries (excluding original)
|
|
if (results.length > 1) {
|
|
setCachedResult(db, cacheKey, results.slice(1).join('\n'));
|
|
}
|
|
|
|
return results;
|
|
}
|
|
|
|
// =============================================================================
|
|
// Reranking
|
|
// =============================================================================
|
|
|
|
export async function rerank(query: string, documents: { file: string; text: string }[], model: string = DEFAULT_RERANK_MODEL, db: Database): Promise<{ file: string; score: number }[]> {
|
|
const cachedResults: Map<string, number> = new Map();
|
|
const uncachedDocs: RerankDocument[] = [];
|
|
|
|
// Check cache for each document
|
|
for (const doc of documents) {
|
|
const cacheKey = getCacheKey("rerank", { query, file: doc.file, model });
|
|
const cached = getCachedResult(db, cacheKey);
|
|
if (cached !== null) {
|
|
cachedResults.set(doc.file, parseFloat(cached));
|
|
} else {
|
|
uncachedDocs.push({ file: doc.file, text: doc.text });
|
|
}
|
|
}
|
|
|
|
// Rerank uncached documents using Ollama
|
|
if (uncachedDocs.length > 0) {
|
|
const ollama = getDefaultOllama();
|
|
const rerankResult = await ollama.rerank(query, uncachedDocs, { model });
|
|
|
|
// Cache results
|
|
for (const result of rerankResult.results) {
|
|
const cacheKey = getCacheKey("rerank", { query, file: result.file, model });
|
|
setCachedResult(db, cacheKey, result.score.toString());
|
|
cachedResults.set(result.file, result.score);
|
|
}
|
|
}
|
|
|
|
// Return all results sorted by score
|
|
return documents
|
|
.map(doc => ({ file: doc.file, score: cachedResults.get(doc.file) || 0 }))
|
|
.sort((a, b) => b.score - a.score);
|
|
}
|
|
|
|
// =============================================================================
|
|
// Reciprocal Rank Fusion
|
|
// =============================================================================
|
|
|
|
export function reciprocalRankFusion(
|
|
resultLists: RankedResult[][],
|
|
weights: number[] = [],
|
|
k: number = 60
|
|
): RankedResult[] {
|
|
const scores = new Map<string, { result: RankedResult; rrfScore: number; topRank: number }>();
|
|
|
|
for (let listIdx = 0; listIdx < resultLists.length; listIdx++) {
|
|
const list = resultLists[listIdx];
|
|
const weight = weights[listIdx] ?? 1.0;
|
|
|
|
for (let rank = 0; rank < list.length; rank++) {
|
|
const result = list[rank];
|
|
const rrfContribution = weight / (k + rank + 1);
|
|
const existing = scores.get(result.file);
|
|
|
|
if (existing) {
|
|
existing.rrfScore += rrfContribution;
|
|
existing.topRank = Math.min(existing.topRank, rank);
|
|
} else {
|
|
scores.set(result.file, {
|
|
result,
|
|
rrfScore: rrfContribution,
|
|
topRank: rank,
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
// Top-rank bonus
|
|
for (const entry of scores.values()) {
|
|
if (entry.topRank === 0) {
|
|
entry.rrfScore += 0.05;
|
|
} else if (entry.topRank <= 2) {
|
|
entry.rrfScore += 0.02;
|
|
}
|
|
}
|
|
|
|
return Array.from(scores.values())
|
|
.sort((a, b) => b.rrfScore - a.rrfScore)
|
|
.map(e => ({ ...e.result, score: e.rrfScore }));
|
|
}
|
|
|
|
// =============================================================================
|
|
// Document retrieval
|
|
// =============================================================================
|
|
|
|
type DbDocRow = {
|
|
filepath: string;
|
|
display_path: string;
|
|
title: string;
|
|
hash: string;
|
|
collection_id: number;
|
|
modified_at: string;
|
|
body_length: number;
|
|
body?: string;
|
|
};
|
|
|
|
/**
|
|
* Find a document by filename/path (with fuzzy matching)
|
|
* Returns document metadata without body by default
|
|
*/
|
|
export function findDocument(db: Database, filename: string, options: { includeBody?: boolean } = {}): DocumentResult | DocumentNotFound {
|
|
let filepath = filename;
|
|
const colonMatch = filepath.match(/:(\d+)$/);
|
|
if (colonMatch) {
|
|
filepath = filepath.slice(0, -colonMatch[0].length);
|
|
}
|
|
|
|
if (filepath.startsWith('~/')) {
|
|
filepath = homedir() + filepath.slice(1);
|
|
}
|
|
|
|
const selectCols = options.includeBody
|
|
? `filepath, display_path, title, hash, collection_id, modified_at, LENGTH(body) as body_length, body`
|
|
: `filepath, display_path, title, hash, collection_id, modified_at, LENGTH(body) as body_length`;
|
|
|
|
// Try various match strategies
|
|
let doc = db.prepare(`SELECT ${selectCols} FROM documents WHERE filepath = ? AND active = 1`).get(filepath) as DbDocRow | null;
|
|
if (!doc) {
|
|
doc = db.prepare(`SELECT ${selectCols} FROM documents WHERE display_path = ? AND active = 1`).get(filepath) as DbDocRow | null;
|
|
}
|
|
if (!doc) {
|
|
doc = db.prepare(`SELECT ${selectCols} FROM documents WHERE filepath LIKE ? AND active = 1 LIMIT 1`).get(`%${filepath}`) as DbDocRow | null;
|
|
}
|
|
if (!doc) {
|
|
doc = db.prepare(`SELECT ${selectCols} FROM documents WHERE display_path LIKE ? AND active = 1 LIMIT 1`).get(`%${filepath}`) as DbDocRow | null;
|
|
}
|
|
|
|
if (!doc) {
|
|
const similar = findSimilarFiles(db, filepath, 5, 5);
|
|
return { error: "not_found", query: filename, similarFiles: similar };
|
|
}
|
|
|
|
const context = getContextForFile(db, doc.filepath);
|
|
|
|
return {
|
|
filepath: doc.filepath,
|
|
displayPath: doc.display_path,
|
|
title: doc.title,
|
|
context,
|
|
hash: doc.hash,
|
|
collectionId: doc.collection_id,
|
|
modifiedAt: doc.modified_at,
|
|
bodyLength: doc.body_length,
|
|
...(options.includeBody && doc.body !== undefined && { body: doc.body }),
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Get the body content for a document
|
|
* Optionally slice by line range
|
|
*/
|
|
export function getDocumentBody(db: Database, doc: DocumentResult | { filepath: string }, fromLine?: number, maxLines?: number): string | null {
|
|
const filepath = 'filepath' in doc ? doc.filepath : doc.filepath;
|
|
const row = db.prepare(`SELECT body FROM documents WHERE filepath = ? AND active = 1`).get(filepath) as { body: string } | null;
|
|
if (!row) return null;
|
|
|
|
let body = row.body;
|
|
if (fromLine !== undefined || maxLines !== undefined) {
|
|
const lines = body.split('\n');
|
|
const start = (fromLine || 1) - 1;
|
|
const end = maxLines !== undefined ? start + maxLines : lines.length;
|
|
body = lines.slice(start, end).join('\n');
|
|
}
|
|
|
|
return body;
|
|
}
|
|
|
|
/**
|
|
* Legacy function for backwards compatibility
|
|
* Combines findDocument + getDocumentBody with line slicing
|
|
*/
|
|
export function getDocument(db: Database, filename: string, fromLine?: number, maxLines?: number): (DocumentResult & { body: string }) | DocumentNotFound {
|
|
// Parse :line suffix
|
|
let parsedFromLine = fromLine;
|
|
let filepath = filename;
|
|
const colonMatch = filepath.match(/:(\d+)$/);
|
|
if (colonMatch && !parsedFromLine) {
|
|
parsedFromLine = parseInt(colonMatch[1], 10);
|
|
filepath = filepath.slice(0, -colonMatch[0].length);
|
|
}
|
|
|
|
const result = findDocument(db, filepath, { includeBody: true });
|
|
if ("error" in result) return result;
|
|
|
|
let body = result.body || "";
|
|
if (parsedFromLine !== undefined || maxLines !== undefined) {
|
|
const lines = body.split('\n');
|
|
const start = (parsedFromLine || 1) - 1;
|
|
const end = maxLines !== undefined ? start + maxLines : lines.length;
|
|
body = lines.slice(start, end).join('\n');
|
|
}
|
|
|
|
return { ...result, body };
|
|
}
|
|
|
|
/**
|
|
* Find multiple documents by glob pattern or comma-separated list
|
|
* Returns documents without body by default (use getDocumentBody to load)
|
|
*/
|
|
export function findDocuments(
|
|
db: Database,
|
|
pattern: string,
|
|
options: { includeBody?: boolean; maxBytes?: number } = {}
|
|
): { docs: MultiGetResult[]; errors: string[] } {
|
|
const isCommaSeparated = pattern.includes(',') && !pattern.includes('*') && !pattern.includes('?');
|
|
const errors: string[] = [];
|
|
const maxBytes = options.maxBytes ?? DEFAULT_MULTI_GET_MAX_BYTES;
|
|
|
|
const selectCols = options.includeBody
|
|
? `filepath, display_path, title, hash, collection_id, modified_at, LENGTH(body) as body_length, body`
|
|
: `filepath, display_path, title, hash, collection_id, modified_at, LENGTH(body) as body_length`;
|
|
|
|
let fileRows: DbDocRow[];
|
|
|
|
if (isCommaSeparated) {
|
|
const names = pattern.split(',').map(s => s.trim()).filter(Boolean);
|
|
fileRows = [];
|
|
for (const name of names) {
|
|
let doc = db.prepare(`SELECT ${selectCols} FROM documents WHERE display_path = ? AND active = 1`).get(name) as DbDocRow | null;
|
|
if (!doc) {
|
|
doc = db.prepare(`SELECT ${selectCols} FROM documents WHERE display_path LIKE ? AND active = 1 LIMIT 1`).get(`%${name}`) as DbDocRow | null;
|
|
}
|
|
if (doc) {
|
|
fileRows.push(doc);
|
|
} else {
|
|
const similar = findSimilarFiles(db, name, 5, 3);
|
|
let msg = `File not found: ${name}`;
|
|
if (similar.length > 0) {
|
|
msg += ` (did you mean: ${similar.join(', ')}?)`;
|
|
}
|
|
errors.push(msg);
|
|
}
|
|
}
|
|
} else {
|
|
// Glob pattern match
|
|
const matched = matchFilesByGlob(db, pattern);
|
|
if (matched.length === 0) {
|
|
errors.push(`No files matched pattern: ${pattern}`);
|
|
return { docs: [], errors };
|
|
}
|
|
const filepaths = matched.map(m => m.filepath);
|
|
const placeholders = filepaths.map(() => '?').join(',');
|
|
fileRows = db.prepare(`SELECT ${selectCols} FROM documents WHERE filepath IN (${placeholders}) AND active = 1`).all(...filepaths) as DbDocRow[];
|
|
}
|
|
|
|
const results: MultiGetResult[] = [];
|
|
|
|
for (const row of fileRows) {
|
|
const context = getContextForFile(db, row.filepath);
|
|
|
|
if (row.body_length > maxBytes) {
|
|
results.push({
|
|
doc: { filepath: row.filepath, displayPath: row.display_path },
|
|
skipped: true,
|
|
skipReason: `File too large (${Math.round(row.body_length / 1024)}KB > ${Math.round(maxBytes / 1024)}KB)`,
|
|
});
|
|
continue;
|
|
}
|
|
|
|
results.push({
|
|
doc: {
|
|
filepath: row.filepath,
|
|
displayPath: row.display_path,
|
|
title: row.title || row.display_path.split('/').pop() || row.display_path,
|
|
context,
|
|
hash: row.hash,
|
|
collectionId: row.collection_id,
|
|
modifiedAt: row.modified_at,
|
|
bodyLength: row.body_length,
|
|
...(options.includeBody && row.body !== undefined && { body: row.body }),
|
|
},
|
|
skipped: false,
|
|
});
|
|
}
|
|
|
|
return { docs: results, errors };
|
|
}
|
|
|
|
/**
|
|
* Legacy function for backwards compatibility
|
|
*/
|
|
export function getMultipleDocuments(db: Database, pattern: string, maxLines?: number, maxBytes: number = DEFAULT_MULTI_GET_MAX_BYTES): { files: MultiGetFile[]; errors: string[] } {
|
|
const { docs, errors } = findDocuments(db, pattern, { includeBody: true, maxBytes });
|
|
|
|
const files: MultiGetFile[] = docs.map(result => {
|
|
if (result.skipped) {
|
|
return {
|
|
filepath: result.doc.filepath,
|
|
displayPath: result.doc.displayPath,
|
|
title: "",
|
|
body: "",
|
|
context: null,
|
|
skipped: true as const,
|
|
skipReason: result.skipReason,
|
|
};
|
|
}
|
|
|
|
let body = result.doc.body || "";
|
|
if (maxLines !== undefined) {
|
|
const lines = body.split('\n');
|
|
body = lines.slice(0, maxLines).join('\n');
|
|
if (lines.length > maxLines) {
|
|
body += `\n\n[... truncated ${lines.length - maxLines} more lines]`;
|
|
}
|
|
}
|
|
|
|
return {
|
|
filepath: result.doc.filepath,
|
|
displayPath: result.doc.displayPath,
|
|
title: result.doc.title,
|
|
body,
|
|
context: result.doc.context,
|
|
skipped: false as const,
|
|
};
|
|
});
|
|
|
|
return { files, errors };
|
|
}
|
|
|
|
// Keep the old MultiGetFile type for backwards compatibility
|
|
export type MultiGetFile = {
|
|
filepath: string;
|
|
displayPath: string;
|
|
title: string;
|
|
body: string;
|
|
context: string | null;
|
|
skipped: false;
|
|
} | {
|
|
filepath: string;
|
|
displayPath: string;
|
|
title: string;
|
|
body: string;
|
|
context: string | null;
|
|
skipped: true;
|
|
skipReason: string;
|
|
};
|
|
|
|
// =============================================================================
|
|
// Status
|
|
// =============================================================================
|
|
|
|
export function getStatus(db: Database): IndexStatus {
|
|
const collections = db.prepare(`
|
|
SELECT c.id, c.pwd, c.glob_pattern, c.created_at,
|
|
COUNT(d.id) as active_count,
|
|
MAX(d.modified_at) as last_doc_update
|
|
FROM collections c
|
|
LEFT JOIN documents d ON d.collection_id = c.id AND d.active = 1
|
|
GROUP BY c.id
|
|
ORDER BY last_doc_update DESC
|
|
`).all() as { id: number; pwd: string; glob_pattern: string; created_at: string; active_count: number; last_doc_update: string | null }[];
|
|
|
|
const totalDocs = (db.prepare(`SELECT COUNT(*) as c FROM documents WHERE active = 1`).get() as { c: number }).c;
|
|
const needsEmbedding = getHashesNeedingEmbedding(db);
|
|
const hasVectors = !!db.prepare(`SELECT name FROM sqlite_master WHERE type='table' AND name='vectors_vec'`).get();
|
|
|
|
return {
|
|
totalDocuments: totalDocs,
|
|
needsEmbedding,
|
|
hasVectorIndex: hasVectors,
|
|
collections: collections.map(col => ({
|
|
id: col.id,
|
|
path: col.pwd,
|
|
pattern: col.glob_pattern,
|
|
documents: col.active_count,
|
|
lastUpdated: col.last_doc_update || col.created_at,
|
|
})),
|
|
};
|
|
}
|
|
|
|
// =============================================================================
|
|
// Snippet extraction
|
|
// =============================================================================
|
|
|
|
export type SnippetResult = {
|
|
line: number; // 1-indexed line number of best match
|
|
snippet: string; // The snippet text with diff-style header
|
|
linesBefore: number; // Lines in document before snippet
|
|
linesAfter: number; // Lines in document after snippet
|
|
snippetLines: number; // Number of lines in snippet
|
|
};
|
|
|
|
export function extractSnippet(body: string, query: string, maxLen = 500, chunkPos?: number): SnippetResult {
|
|
const totalLines = body.split('\n').length;
|
|
let searchBody = body;
|
|
let lineOffset = 0;
|
|
|
|
if (chunkPos && chunkPos > 0) {
|
|
const contextStart = Math.max(0, chunkPos - 100);
|
|
const contextEnd = Math.min(body.length, chunkPos + maxLen + 100);
|
|
searchBody = body.slice(contextStart, contextEnd);
|
|
if (contextStart > 0) {
|
|
lineOffset = body.slice(0, contextStart).split('\n').length - 1;
|
|
}
|
|
}
|
|
|
|
const lines = searchBody.split('\n');
|
|
const queryTerms = query.toLowerCase().split(/\s+/).filter(t => t.length > 0);
|
|
let bestLine = 0, bestScore = -1;
|
|
|
|
for (let i = 0; i < lines.length; i++) {
|
|
const lineLower = lines[i].toLowerCase();
|
|
let score = 0;
|
|
for (const term of queryTerms) {
|
|
if (lineLower.includes(term)) score++;
|
|
}
|
|
if (score > bestScore) {
|
|
bestScore = score;
|
|
bestLine = i;
|
|
}
|
|
}
|
|
|
|
const start = Math.max(0, bestLine - 1);
|
|
const end = Math.min(lines.length, bestLine + 3);
|
|
const snippetLines = lines.slice(start, end);
|
|
let snippetText = snippetLines.join('\n');
|
|
if (snippetText.length > maxLen) snippetText = snippetText.substring(0, maxLen - 3) + "...";
|
|
|
|
const absoluteStart = lineOffset + start + 1; // 1-indexed
|
|
const snippetLineCount = snippetLines.length;
|
|
const linesBefore = absoluteStart - 1;
|
|
const linesAfter = totalLines - (absoluteStart + snippetLineCount - 1);
|
|
|
|
// Format with diff-style header: @@ -start,count @@ (linesBefore before, linesAfter after)
|
|
const header = `@@ -${absoluteStart},${snippetLineCount} @@ (${linesBefore} before, ${linesAfter} after)`;
|
|
const snippet = `${header}\n${snippetText}`;
|
|
|
|
return {
|
|
line: lineOffset + bestLine + 1,
|
|
snippet,
|
|
linesBefore,
|
|
linesAfter,
|
|
snippetLines: snippetLineCount,
|
|
};
|
|
}
|