export interface CandidateResult {
    ref: string;
    applied: number[];
    rejected: number[];
    /** Squash-merged cleanly but staged nothing — the diff is already on the base. */
    alreadyApplied: number[];
}
export interface GitOps {
    primaryRoot(): string;
    defaultBranch(): string;
    fetchOrigin(): void;
    originHeadSha(branch: string): string;
    treeOf(ref: string): string;
    ensureGateWorktree(): string;
    /** Detached checkout of an exact SHA in the gate worktree (bootstrap
     *  preflight runs the full gate there). Clears crashed-merge leftovers
     *  first, fetches the object when absent locally. Returns the gate dir. */
    checkoutDetachedInGate(sha: string): string;
    /** Fast-forward the PRIMARY worktree to the bootstrap merge commit. `gh pr
     *  merge` updates only the remote, so the local primary tree lacks the
     *  just-landed queue files (poller script, config) until this fetch +
     *  fast-forward — without it the post-merge scheduler arm
     *  (`buildPostMergePollerJob(primary)`) throws on the missing script. Fetches
     *  origin, then `merge --ff-only` primary to the exact merge SHA. */
    syncPrimaryToMerge(mergeSha: string): void;
    constructCandidate(batchId: string, prs: {
        pr: number;
        headSha: string;
    }[], base: string): CandidateResult;
    deleteCandidate(batchId: string): void;
    listCandidateRefs(): string[];
}
export declare function createGitOps(repoRoot: string): GitOps;
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