export type ExecFileForGit = (file: string, args: string[], opts?: {
    cwd?: string;
}) => Promise<{
    stdout: string;
    stderr: string;
}>;
export type RepoRootMode = 'show-toplevel' | 'git-common-dir';
export interface ResolveRepoRootOptions {
    cwd?: string;
    mode?: RepoRootMode;
    execFile?: ExecFileForGit;
}
export type ExecFileSyncForGit = (file: string, args: string[], options: {
    cwd: string;
    encoding: 'utf8';
    stdio: ['ignore', 'pipe', 'ignore'];
}) => string;
export interface ResolveRepoRootSyncOptions {
    cwd?: string;
    mode?: RepoRootMode;
    fallback?: string;
    execFileSync?: ExecFileSyncForGit;
}
export declare function resolveRepoRoot(options?: ResolveRepoRootOptions): Promise<string>;
export declare function resolveRepoRootSync(options?: ResolveRepoRootSyncOptions): string;