import type { Repo } from "../api/repo.ts";
import type { Actor } from "../objects/types.ts";
import type { BranchScope } from "./scope.ts";
export type CatchUpResult = {
    caughtUp: {
        sha: string;
        ops: number;
        checkpoint?: string;
    };
}
/** The capture was stopped by the signal before it finished: base holds part of the trunk
 *  tree. The caller must NOT capture the workspace on top of it this time. */
 | {
    partial: {
        sha: string;
        ops: number;
        remaining: number;
    };
} | {
    skipped: "not-a-workspace" | "no-git" | "no-trunk" | "no-merge-base" | "base-has-it" | "base-ahead";
};
/**
 * Capture the branch's merge-base with trunk into base if base does not have it yet.
 * Idempotent: a second call finds the `git:<sha>` link and skips.
 */
export declare function catchUpTrunk(repo: Repo, cwd: string, scope: BranchScope, actor: Actor, opts?: {
    signal?: AbortSignal;
}): Promise<CatchUpResult>;
/** One stderr line when a catch-up did something — silence when it did not. */
export declare function catchUpMessage(r: CatchUpResult, branch: string): string | null;
//# sourceMappingURL=trunkCatchUp.d.ts.map