import type { FlagView } from '../../../spec/types.ts';
import { type CommitFacts } from './format.ts';
import { gitFs } from './fs.ts';
import type { CLIDoors } from '../../types.ts';
import type { Dispatch, RepoLocation } from './types.ts';
/**
 * A repository living in a mount, opened for reading.
 *
 * `fs` is the whole bridge: isomorphic-git reaches every byte through it, so its
 * own algorithms (history walk, tree diff, three-way merge) run against a mount
 * without ever learning that one exists. Nothing here is loaded eagerly, which
 * is also what git does.
 *
 * Objects come from the common directory and refs from both: a linked worktree
 * shares the object database and the branches of the repository it was cut from,
 * and owns only HEAD and whatever refs are per-checkout.
 */
export interface Repo {
    readonly fs: ReturnType<typeof gitFs>;
    readonly dispatch: Dispatch;
    readonly location: RepoLocation;
    /** How many hex digits this repository abbreviates an id to. */
    readonly abbrev: number;
}
/** The argument bag every isomorphic-git call in this package shares. */
export declare function repoArgs(repo: Repo): {
    fs: never;
    dir: string;
    gitdir: string;
};
/**
 * Discover and open the repository a verb was invoked against.
 *
 * Every verb starts the same way: honor `-C`, walk up to the mount root looking
 * for a `.git`, then open the object database across the dispatcher. Kept in one
 * place so a new verb inherits the discovery rules rather than restating them.
 *
 * @param fl the leaf's flag bag, read for `-C`
 * @param statPath dispatcher-backed stat, both channels
 * @param mountRoot the mount prefix serving a path
 * @param dispatch workspace op dispatcher
 */
export declare function opened(fl: FlagView, doors: CLIDoors): Promise<Repo>;
/**
 * One commit as the renderers want it.
 *
 * isomorphic-git reports the timezone the way `Date.getTimezoneOffset()` does,
 * negated minutes east of UTC, so `+0530` arrives as `-330`. git prints the
 * other sign, and this is the one place the two conventions meet.
 */
export declare function commitFacts(repo: Repo, oid: string): Promise<CommitFacts>;
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