/**
 * 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 gitDDB source tree.
 */
import { ReadBlobResult } from 'isomorphic-git';
import { DocType, FatDoc, NormalizedCommit, SerializeFormat } from '../types';
/**
 * Write blob to file system
 *
 * @throws {@link Err.CannotCreateDirectoryError}
 */
export declare function writeBlobToFile(workingDir: string, name: string, data: string | Uint8Array): Promise<void>;
/**
 * getFatDocFromData
 *
 * @throws {@link Err.InvalidJsonObjectError}
 */
export declare function getFatDocFromData(data: string | Uint8Array, fullDocPath: string, docType: DocType, serializeFormat: SerializeFormat): Promise<FatDoc>;
/**
 * getFatDocFromOid
 *
 * @throws {@link Err.InvalidJsonObjectError} (from getFatDocFromReadBlobResult)
 */
export declare function getFatDocFromOid(workingDir: string, fullDocPath: string, fileOid: string, docType: DocType, serializeFormat: SerializeFormat): Promise<FatDoc>;
/**
 * getFatDocFromReadBlobResult
 *
 * @throws {@link Err.InvalidJsonObjectError}
 */
export declare function getFatDocFromReadBlobResult(fullDocPath: string, readBlobResult: ReadBlobResult, docType: DocType, serializeFormat: SerializeFormat): FatDoc;
/**
 * Get changed files
 *
 * @throws {@link Err.InvalidJsonObjectError} (from getFatDocFromOid)
 *
 * @internal
 */
export declare function getChanges(workingDir: string, oldCommitOid: string | undefined, newCommitOid: string, serializeFormat: SerializeFormat): Promise<any>;
/**
 * Get and write changed files on local
 *
 * @throws {@link Err.InvalidJsonObjectError} (from getFatDocFromOid)
 * @throws {@link Err.CannotCreateDirectoryError} (from writeBlobToFile)
 *
 * @internal
 */
export declare function getAndWriteLocalChanges(workingDir: string, oldCommitOid: string, newCommitOid: string, serializeFormat: SerializeFormat): Promise<any>;
/**
 * Get commit logs by walking backward
 *
 * @remarks
 *
 * - Logs are sorted by topology. Ancestors are placed before descendants. Topic branches are placed before the main branch.
 *
 * - Walking stops when it reaches to walkToCommitOid or walkToCommitOid2.
 *
 * - Use walkToCommitOid2 when walkFromCommit has two parents.
 *
 * - walkToCommit is not included to return value.
 *
 * @internal
 */
export declare function getCommitLogs(workingDir: string, walkFromCommitOid: string, walkToCommitOid?: string, walkToCommitOid2?: string): Promise<NormalizedCommit[]>;
/**
 * Calc distance
 */
export declare function calcDistance(baseCommitOid: string, localCommitOid: string, remoteCommitOid: string): {
    ahead: undefined;
    behind: undefined;
} | {
    ahead: number;
    behind: number;
};
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