import { type ArchiveCodec } from "./codec.js";
import type { BackupTarget } from "./targets.js";
export declare const REGISTRY_DB_FILE = "registry.db";
/** One target's outcome, and the shape `--json` hands the alerting job. */
export interface SnapshotReport {
    name: string;
    status: "ok" | "failed";
    bytes: number;
    path: string;
    error?: string;
}
export declare function snapshotDateStamp(when: Date): string;
/** A dated directory name, and nothing else, is a snapshot. */
export declare const SNAPSHOT_DIR_PATTERN: RegExp;
/**
 * Writes one target's snapshot under `<root>/<name>/<date>`, building it in a
 * sibling temp directory and renaming only once it has verified - so a run that
 * dies halfway leaves no directory that looks like a usable backup.
 */
export declare function createSnapshot(target: BackupTarget, root: string, createdAt: Date, codec?: ArchiveCodec): Promise<SnapshotReport>;
//# sourceMappingURL=snapshot.d.ts.map