import { type Provider } from "@coldtea/pr-lens-schema";
export declare const git: (repo: string, args: readonly string[]) => Promise<string>;
export type Commit = {
    sha: string;
    ref: string | undefined;
};
/**
 * A ref becomes the commit it named at the moment of the run, and a branch
 * keeps its name for the permalinks. `HEAD` is resolved to a branch name when
 * it is on one, since "HEAD" tells a reader of the comment nothing.
 */
export declare const resolveCommit: (repo: string, ref: string) => Promise<Commit>;
/**
 * The commit the pull request would be compared against, not the tip of the
 * base branch: a diff against the tip would attribute every change made on
 * the base branch since the fork point to this pull request.
 */
export declare const mergeBase: (repo: string, base: string, head: string) => Promise<string>;
export type ChangedFile = {
    path: string;
    additions: number | undefined;
    deletions: number | undefined;
};
export type Diff = {
    files: ChangedFile[];
    additions: number;
    deletions: number;
    patch: string;
    truncatedAt: number | undefined;
};
export declare const collectDiff: (repo: string, base: string, head: string, maxPatchBytes: number) => Promise<Diff>;
export type RepoSlug = {
    owner: string;
    name: string;
    host: string;
    provider: Provider;
};
/**
 * Which forge a host belongs to. bitbucket.org is exact because Bitbucket
 * Cloud has one host; anything with "gitlab" in the name is taken to be a
 * self-managed GitLab, since those hosts follow no other convention; and
 * everything else is treated as GitHub, which keeps today's behavior for
 * every repository the CLI already handles. A self-managed GitLab on a host
 * that does not say so is what `--forge` exists for.
 */
export declare const providerForHost: (host: string) => Provider;
/**
 * Where a pull request lives on each forge. The number is the same concept
 * everywhere — GitLab's iid, Bitbucket's id — but each forge spells the path
 * differently, and a wrong spelling is a 404 in the reader's face.
 */
export declare const pullRequestUrl: (slug: RepoSlug, pr: number) => string;
export declare const parseRemoteUrl: (url: string) => RepoSlug | undefined;
export declare const parseRepoSlug: (slug: string) => RepoSlug | undefined;
export declare const remoteSlug: (repo: string, remote: string) => Promise<RepoSlug | undefined>;
export declare const repositoryRoot: (repo: string) => Promise<string>;
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