///
import { Arch } from "builder-util";
import { Hash } from "crypto";
export interface BuildCacheInfo {
executableDigest: string;
}
export declare class BuildCacheManager {
private readonly executableFile;
static VERSION: string;
readonly cacheDir: string;
readonly cacheInfoFile: string;
readonly cacheFile: string;
cacheInfo: BuildCacheInfo | null;
private newDigest;
constructor(outDir: string, executableFile: string, arch: Arch);
copyIfValid(digest: string): Promise;
save(): Promise;
}
export declare function digest(hash: Hash, files: Array): Promise;