/**
 * GitDocumentDB
 * Copyright (c) Hidekazu Kubota
 *
 * This source code is licensed under the Mozilla Public License Version 2.0
 * found in the LICENSE file in the root directory of this source tree.
 */
import { ReadCommitResult } from 'isomorphic-git';
import { DocMetadata, NormalizedCommit, SerializeFormat } from './types';
/**
 * @internal
 */
export declare function sleep(msec: number): Promise<unknown>;
/**
 * utf8decode
 *
 * @internal
 */
export declare function utf8decode(uint8array: Uint8Array): string;
/**
 * utf8encode
 *
 * @internal
 */
export declare function utf8encode(utf8: string): Uint8Array;
/**
 * Returns JSON string which properties are sorted.
 * The sorting follows the UTF-16 (Number < Uppercase < Lowercase), except that heading underscore _ is the last.
 * Its indent is 2.
 *
 * NOTE: Heading underscore cannot be the first because replacing '\uffff' with '\u0000' does not effect to sorting order.
 *
 */
export declare function toSortedJSONString(obj: Record<string, any>): string;
export declare function toYAML(obj: Record<string, any>): string;
export declare function toFrontMatterMarkdown(obj: Record<string, any>): string;
/**
 * Get metadata of all files from current Git index
 *
 * @internal
 */
export declare function getAllMetadata(workingDir: string, serializeFormat: SerializeFormat): Promise<DocMetadata[]>;
/**
 * Get normalized commit
 */
export declare function normalizeCommit(commit: ReadCommitResult): NormalizedCommit;
/**
 * Template literal tag for console style
 * https://bluesock.org/~willkg/dev/ansi.html#ansicodes
 *
 * @internal
 */
declare class ConsoleStyleClass {
    private _style;
    constructor(style?: string);
    tag: () => (literals: TemplateStringsArray, ...placeholders: any[]) => string;
    fgBlack: () => ConsoleStyleClass;
    bgWhite: () => ConsoleStyleClass;
    fgRed: () => ConsoleStyleClass;
    bgRed: () => ConsoleStyleClass;
    bgGreen: () => ConsoleStyleClass;
    bgYellow: () => ConsoleStyleClass;
}
export declare const CONSOLE_STYLE: ConsoleStyleClass;
export {};
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