export type ComparisonRepository = {
    repositoryRoot: string;
    appRelativePath: string;
    currentCommit: string;
    currentBranch: string | null;
    currentDirty: boolean;
    currentLabel: string;
    baselineCommit: string;
    baselineLabel: string;
    baselineInputFingerprint: string;
    refs: string;
    indexFingerprint: string;
};
/** Never inherit a caller's index/worktree overrides into an isolated Git invocation. */
export declare function comparisonGitEnvironment(): NodeJS.ProcessEnv;
export declare function runComparisonGit(cwd: string, args: string[], signal?: AbortSignal, allowedExitCodes?: number[], input?: string): Promise<string>;
export declare function comparisonRefs(cwd: string, signal?: AbortSignal): Promise<string>;
export declare function comparisonIndexFingerprint(cwd: string, signal?: AbortSignal): Promise<string>;
export declare function inspectComparisonRepository(projectRoot: string, compareRef: string, options?: {
    fetch?: boolean;
    signal?: AbortSignal;
}): Promise<ComparisonRepository>;