/// <reference types="node" />
import { LogType } from '../log';
import { Readable } from 'stream';
import { FileConfig } from './file.config';
export interface FileProcessor {
    read(filePath: string): Promise<Buffer>;
    readJson<T = any>(filePath: string): Promise<T>;
    readStream(filePath: string): Readable;
    write(filePath: string, buffer: Buffer | Readable, logger?: LogType): Promise<void>;
    writeJson(filePath: string, obj: any, logger?: LogType): Promise<void>;
    list(filePath: string): Promise<string[]>;
    exists(filePath: string): Promise<boolean>;
}
/** Simple wrapper to allow both s3:// and local files to be read and listed */
export declare const FileOperator: {
    /** path.join removes slashes, s3:// => s3:/ which causes issues */
    join(filePathA: string, filePathB: string): string;
    isS3(filePath?: string | undefined): boolean;
    create(cfg: string | FileConfig): FileProcessor;
};
//# sourceMappingURL=file.d.ts.map