/**
 * Replay a `pg_dumpall --globals-only` script one statement at a time,
 * tolerating per-statement failures. On a same-cluster restore the roles
 * usually already exist (`CREATE ROLE` → "already exists") and on a managed
 * provider an `ALTER ROLE <superuser>` may be refused; neither should abort
 * recreation of the roles that *are* missing. Returns how many statements
 * applied vs were skipped.
 *
 * `runStatement` executes one SQL statement and rejects on error.
 */
export declare function applyGlobalsWith(runStatement: (sql: string) => Promise<void>, globalsSql: string, log?: (message: string) => void): Promise<{
    applied: number;
    skipped: number;
}>;
/**
 * Delete each pruned dump together with its `.globals.sql` roles sidecar, so
 * pruning never orphans the roles file. The sidecar is best-effort — older
 * backups predate it, so a missing-sidecar failure is swallowed while a
 * failure deleting the dump itself propagates.
 *
 * `deleteObject` removes one key and rejects if it cannot (e.g. not found).
 */
export declare function pruneWith(keys: string[], deleteObject: (key: string) => Promise<void>): Promise<void>;
/**
 * Remove a dump artifact abandoned by a failed tool run.
 *
 * `pg_dump` creates its `--file=` target before it finishes connecting, so any
 * failure — a URL libpq rejects, a dropped connection, a full disk — leaves a
 * 0-byte file behind. That corpse is not inert: `rebase db backups list` used
 * to show it as an ordinary entry, and `selectBackupsToPrune` ranks by
 * timestamp alone, so it occupies a protected `keepMinimum` slot and can push
 * a real backup out of retention.
 *
 * Best-effort on purpose: the caller is already throwing, and a failed unlink
 * must not replace the real diagnosis with an ENOENT/EPERM from the cleanup.
 *
 * Lives here rather than in `backup-service.ts` for the reason at the top of
 * this file — that module's top-level `execa` import makes it unloadable under
 * jest, so anything placed there cannot be unit-tested.
 *
 * `remove` deletes one file and throws if it cannot; `exists` reports presence.
 */
export declare function discardPartialDumpWith(exists: (file: string) => boolean, remove: (file: string) => void, file: string): void;