/**
 * `harn backup`: restic-backed snapshots of `.harnery/`.
 *
 * Wraps `restic` with sensible defaults so single-user use doesn't require
 * remembering env vars. Repo path + password file live under XDG-style
 * paths and are init'd on first `harn backup init`. Subcommands:
 *
 *   init      restic init the repo (one-time)
 *   snapshot  restic backup of the durable, privacy-safe V3 state
 *   list      restic snapshots
 *   restore   restic restore <id>
 *   prune     restic forget --keep-daily 7 --keep-weekly 4 --prune
 *
 * Defaults (repo path, password file, and the keep-daily/weekly/monthly prune
 * policy) come from `.harnery/config.jsonc` `backup.*`, overridable per field by
 * env vars (HARNERY_RESTIC_REPO, HARNERY_RESTIC_PASSWORD_FILE) and CLI flags —
 * see `backupConfig()`. The wrapper deliberately doesn't try to abstract restic;
 * it surfaces it, with opinionated defaults plus passthrough after `--`.
 */
import type { Command } from "commander";
import type { EmitContext } from "../commander.js";
import { type BackupConfig } from "../core/config.js";
import type { HarneryStorageClass } from "../core/storage/contract.js";
export { hostSnapshotCachePath, newestSnapshotTime, parseBackupDuration, readHostSnapshotCache, } from "../core/backup/host-snapshot.js";
export declare const DEFAULT_BACKUP_MAX_BYTES: number;
export declare const DEFAULT_BACKUP_CLASSES: Set<HarneryStorageClass>;
export declare const DEFAULT_BACKUP_EXCLUDED_CLASSES: Set<HarneryStorageClass>;
export declare const DEFAULT_BACKUP_EXCLUDED_FAMILY_IDS: Set<string>;
export interface BackupSelection {
    targets: readonly string[];
    familyIds: readonly string[];
}
export declare function resolveBackupSelection(projectRoot: string, config?: BackupConfig, includeArtifacts?: boolean): BackupSelection;
export declare function backupCatalogCoverage(projectRoot: string): {
    uncovered: readonly string[];
};
export declare function selectedLogicalBytes(targets: readonly string[]): number;
export declare function registerBackupCommand(program: Command, emit: EmitContext): void;
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