import type { WorldBackupError, WorldBackupErrorCode } from '../../application/ports/outbound/IWorldBackupPort.js';
export declare const LOCKS = ".locks";
/** A failure that ends the operation with this result. */
export declare class Fail extends Error {
    readonly error: WorldBackupError;
    constructor(error: WorldBackupError);
}
export declare const fail: (code: WorldBackupErrorCode, message: string, extra?: Partial<WorldBackupError>) => never;
/**
 * Run `main`, then `cleanup`. A cleanup error never hides the main error (ADR B5.9):
 * it is appended to the main message, keeping its code and paths. After a successful
 * `main`, a cleanup error is ignored (the next run cleans up again).
 */
export declare function withCleanup<T>(main: () => Promise<T>, cleanup: () => Promise<void>): Promise<T>;
export declare const isMissing: (e: unknown) => boolean;
export declare function lstatOrNull(path: string): Promise<import("fs").Stats | null>;
/** Directory names under `path` (no dot entries); `withLinks` also returns symlinks. */
export declare function listDirs(path: string, options?: {
    withLinks?: boolean;
}): Promise<string[]>;
export declare function entries(path: string): Promise<string[]>;
/** Throws unsupported_layout on the first symlink under `path` (inclusive). */
export declare function assertNoSymlinks(path: string, skip?: (p: string) => boolean): Promise<void>;
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