import type { Command } from '@oclif/core';
import { IndexDatabase } from '../../db/database.js';
/**
 * Resolve the database path from the flag value.
 * Priority: explicit flag > SQUINT_DB_PATH env var > walk-up discovery.
 */
export declare function resolveDbPath(dbPath: string | undefined, command: Command): string;
/**
 * Open a database, checking that it exists first.
 * Throws Command.error() if the database doesn't exist or can't be opened.
 */
export declare function openDatabase(dbPath: string | undefined, command: Command): Promise<IndexDatabase>;
/**
 * Execute a function with a database connection, ensuring it's closed afterward.
 * Combines database opening and try/finally pattern.
 */
export declare function withDatabase<T>(dbPath: string | undefined, command: Command, fn: (db: IndexDatabase) => Promise<T>): Promise<T>;
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