export interface CloneOptions {
    /**
     * @default 1
     */
    readonly depth?: number;
    /**
     * @default false
     */
    readonly tags?: boolean;
    /**
     * @default - default branch
     */
    readonly branch?: string;
}
/**
 * Clones a repository from GitHub. Requires a `GITHUB_TOKEN` env variable.
 *
 * @param repositoryUrl the repository to clone.
 * @param targetDir the clone directory.
 */
export declare function clone(repositoryUrl: string, targetDir: string, { depth, tags, branch }?: CloneOptions): void;
/**
 * Checks if the current environment is an GHE environment.
 *
 * This check is using GITHUB_API_URL set in GitHub Actions workflow, as well as common gh cli env variables.
 * https://docs.github.com/en/actions/learn-github-actions/variables#default-environment-variables
 * https://cli.github.com/manual/gh_help_environment
 *
 * @return - `true` if GH_HOST or GITHUB_API_URL env var are defined and not equal to the public github endpoint, otherwise `false`
 */
export declare function detectGHE(): boolean;
/**
 * Returns an appropriate github token from the environment.
 *
 * @return GH_ENTERPRISE_TOKEN or GITHUB_ENTERPRISE_TOKEN or GITHUB_TOKEN if in an GHE environment, otherwise GITHUB_TOKEN
 */
export declare function getToken(isGHE: boolean): (string | undefined);
/**
 * Checks if SSH should be used to clone repo.
 * This checks the presence and values of the GIT_USE_SSH env variable and the deprecated GITHUB_USE_SSH for legacy reason. Returns true if either of these env vars are defined and not falsy.
 */
export declare function detectSSH(): boolean;
/**
 * Query the git index for changes.
 *
 * @return True if changes exist, False otherwise.
 */
export declare function diffIndex(): boolean;
/**
 * Add files to the index.
 *
 * @param p the path.
 */
export declare function add(p: string): void;
/**
 * Remove files from the working tree and from the index
 *
 * @param p the path.
 */
export declare function rm(p: string, options?: {
    recursive?: boolean;
}): void;
/**
 * Commit.
 *
 * @param message the commit message.
 */
export declare function commit(message: string): void;
/**
 * Initialize a repository.
 */
export declare function init(): void;
/**
 * Cerate a tag.
 *
 * @param name tag name.
 * @returns true if the tag was created, false if it already exists.
 */
export declare function tag(name: string): boolean;
/**
 * Push a ref to origin.
 *
 * @param ref the ref
 */
export declare function push(ref: string): void;
/**
 * Checkout to a new branch. Creates a new one if `options.createIfMissing` is True and the branch doesn't exist.
 *
 * @param branch the branch.
 * @param options options.
 */
export declare function checkout(branch: string, options: {
    createIfMissing?: boolean;
}): void;
/**
 * Fetch the configured git user name for the current directory.
 * Returns undefined if not configured.
 */
export declare function username(): string | undefined;
/**
 * Fetch the configured git user email for the current directory.
 * Returns undefined if not configured.
 */
export declare function email(): string | undefined;
/**
 * Identify the committer with a username and email.
 *
 * @param user the username.
 * @param email the email address.
 */
export declare function identify(user: string, address: string): void;
/**
 * Does the given branch exists on the remote.
 */
export declare function branchExistsOnRemote(repositoryUrl: string, branch: string): boolean;