import { AttachMents, Manifest, Version, Versions } from '@verdaccio/types';
export declare const STORAGE: {
    PACKAGE_FILE_NAME: string;
    FILE_EXIST_ERROR: string;
    NO_SUCH_FILE_ERROR: string;
    DEFAULT_REVISION: string;
};
/**
 * Create a new package in the storage, return a boilerplate package
 * @param name package name
 * @returns {Manifest}
 */
export declare function generatePackageTemplate(name: string): Manifest;
/**
 * Normalize package properties, tags, revision id.
 * @param {Object} pkg package reference.
 */
export declare function normalizePackage(pkg: Manifest): Manifest;
export declare function generateRevision(rev: string): string;
export declare function getLatestReadme(pkg: Manifest): string;
export declare function cleanUpReadme(version: any): Version;
export declare const WHITELIST: string[];
export declare function cleanUpLinksRef(result: Manifest, keepUpLinkData?: boolean): Manifest;
export declare function checkPackageRemote(name: string, isAllowPublishOffline: boolean, syncMetadata: Function): Promise<any>;
export declare function mergeUplinkTimeIntoLocal(localMetadata: Manifest, remoteMetadata: Manifest): any;
export declare function mergeUplinkTimeIntoLocalNext(cacheManifest: Manifest, remoteManifest: Manifest): Manifest;
export declare function updateUpLinkMetadata(uplinkId: any, manifest: Manifest, etag: string): {
    _uplinks: {};
    _distfiles: import("@verdaccio/types").DistFiles;
    _rev: string;
    _id?: string | undefined;
    name: string;
    description?: string | undefined;
    'dist-tags': import("@verdaccio/types").GenericBody;
    time: import("@verdaccio/types").GenericBody;
    versions: Versions;
    maintainers?: import("@verdaccio/types").Author[] | undefined;
    readme?: string | undefined;
    users?: import("@verdaccio/types").PackageUsers | undefined;
    access?: any;
    bugs?: {
        url: string;
    } | undefined;
    license?: string | undefined;
    homepage?: string | undefined;
    repository?: string | {
        type?: string | undefined;
        url: string;
        directory?: string | undefined;
    } | undefined;
    keywords?: string[] | undefined;
    author?: string | import("@verdaccio/types").Author | undefined;
    _attachments: AttachMents;
};
export declare function prepareSearchPackage(data: Manifest): any;
export declare function isDifferentThanOne(versions: Versions | AttachMents): boolean;
export declare function hasInvalidPublishBody(manifest: Pick<Manifest, '_attachments' | 'versions'>): boolean;
/**
 * Function gets a local info and an info from uplinks and tries to merge it
 exported for unit tests only.
  * @param {*} local
  * @param {*} remoteManifest
  * @param {*} config configuration file
  */
export declare function mergeVersions(cacheManifest: Manifest, remoteManifest: Manifest): Manifest;
/**
 * Normalize dist-tags.
 *
 * There is a legacy behaviour where the dist-tags could be an array, in such
 * case, the array is orderded and the highest version becames the
 * latest.
 *
 * The dist-tag tags must be plain strigs, if the latest is empty (for whatever reason) is
 * normalized to be the highest version available.
 *
 * This function cleans up every invalid version on dist-tags, but does not remove
 * invalid versions from the manifest.
 *
 * @param {*} data
 */
export declare function normalizeDistTags(manifest: Manifest): Manifest;
export declare function hasDeprecatedVersions(pkgInfo: Manifest): boolean;
export declare function isDeprecatedManifest(manifest: Manifest): boolean;