import { CacheEntry } from '@vltpkg/registry-client';
import type { LoadedConfig } from '../config/index.ts';
import type { CommandFn, CommandUsage } from '../index.ts';
import type { ViewOptions, Views } from '../view.ts';
import { ViewClass } from '../view.ts';
export type CacheMap = Record<string, ReturnType<CacheEntry['toJSON']>>;
export type CacheSubcommands = keyof (typeof usageDef)['subcommands'];
export declare class CacheView extends ViewClass {
    constructor(options: ViewOptions, conf: LoadedConfig);
    stdout(...args: unknown[]): void;
}
export declare const views: Views<void | CacheMap>;
declare const usageDef: {
    readonly command: "cache";
    readonly usage: "<command> [flags]";
    readonly description: "Work with vlt cache folders";
    readonly subcommands: {
        readonly add: {
            readonly usage: "<package-spec> [<package-spec>...]";
            readonly description: "Resolve the referenced package identifiers and ensure they\n                    are cached.";
        };
        readonly ls: {
            readonly usage: "[<key>...]";
            readonly description: "Show cache entries. If no keys are provided, then a list of\n                    available keys will be printed. If one or more keys are\n                    provided, then details will be shown for the specified\n                    items.";
        };
        readonly info: {
            readonly usage: "<key>";
            readonly description: "Print metadata details for the specified cache key to\n                    stderr, and the response body to stdout.";
        };
        readonly clean: {
            readonly usage: "[<key>...]";
            readonly description: "Purge expired cache entries. If one or more keys are\n                    provided, then only those cache entries will be\n                    considered.";
        };
        readonly delete: {
            readonly usage: "<key> [<key>...]";
            readonly description: "Purge items explicitly, whether expired or not.  If one or\n                    more keys are provided, then only those cache entries will\n                    be considered.";
        };
        readonly 'delete-before': {
            readonly usage: "<date>";
            readonly description: "Purge all cache items from before a given date. Date can be\n                    provided in any format that JavaScript can parse.";
        };
        readonly 'delete-all': {
            readonly usage: "";
            readonly description: "Delete the entire cache folder to make vlt slower.";
        };
    };
    readonly examples: {
        readonly 'vlt cache ls https://registry.npmjs.org/typescript': {
            readonly description: "Show cache metadata for a given registry URL";
        };
        readonly 'vlt cache add eslint@latest': {
            readonly description: "Add a given package specifier to the cache by fetching\n                    its resolved value.";
        };
        readonly 'vlt cache info https://registry.npmjs.org/eslint/-/eslint-9.25.1.tgz > eslint.tgz': {
            readonly description: "Print the cache metadata to stderr, and write the tarball\n                    on stdout, redirecting to a file.";
        };
        readonly 'vlt cache delete-before 2025-01-01': {
            readonly description: "Delete all entries created before Jan 1, 2025";
        };
    };
};
export declare const usage: CommandUsage;
export declare const command: CommandFn<void | CacheMap>;
export {};