export interface WalkSnapshot {
    done: number;
    total: number;
    complete: boolean;
}
/** A fixed-width bar. Pure, so the rendering is pinned by tests. */
export declare function renderBar(done: number, total: number, width?: number): string;
/** `1,240/15,748` — grouped, because five- and six-digit counts are unreadable raw. */
export declare function renderCount(done: number, total: number): string;
/**
 * The one line shown while a walk is in flight, or the one line shown when it
 * is handed off / finished. Kept pure and separate from the polling so the exact
 * wording is testable — the whole point of this change is the wording.
 */
export declare function progressLine(snap: WalkSnapshot | null): string;
export declare function handOffLine(snap: WalkSnapshot | null): string;
export interface FirstSyncDeps {
    /** Current walk state, or null when none has been reported yet. */
    readProgress: () => WalkSnapshot | null;
    /** Draw the single line, in place. */
    draw: (text: string) => void;
    /** Start the detached worker. Returns a stop handle for tests. */
    startWorker: () => void;
    now: () => number;
    sleep: (ms: number) => Promise<void>;
    /** How long to watch before handing off. */
    handOffAfterMs?: number;
    pollMs?: number;
}
export interface FirstSyncOutcome {
    /** True when the walk reported `complete` before the hand-off deadline. */
    finished: boolean;
    snapshot: WalkSnapshot | null;
}
/**
 * Start the sync, watch it on ONE line, and stop watching at the deadline.
 *
 * Never kills the worker — handing off means letting it run, not cancelling it.
 * The caller prints the final line, because only it knows the surrounding
 * layout.
 */
export declare function watchFirstSync(deps: FirstSyncDeps): Promise<FirstSyncOutcome>;
/**
 * Spawn `<this cli> sync` fully detached, stdio discarded.
 *
 * `stdio: 'ignore'` is the half that silences the daemon log; `detached` +
 * `unref` is the half that lets a long walk outlive `init`. `argv[1]` rather
 * than a resolved package path, so a dev checkout, a global install and a
 * user-prefix install all re-invoke the binary that is actually running.
 */
export declare function spawnDetachedSync(extraArgs?: string[]): void;
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