export declare const SOURCE_UPLOAD_CACHE_PATH = ".openpond/source-upload-cache.json";
export type SourceUploadCacheFile = {
    path: string;
    absolutePath: string;
    size: number;
    mtimeMs: number;
    ctimeMs: number;
};
export type SourceUploadCacheEntry = {
    path: string;
    size: number;
    mtimeMs: number;
    ctimeMs: number;
    sha256: string;
    contentsBase64: string;
};
export type SourceUploadMaterializedEntry = {
    path: string;
    type: "file";
    contentsBase64: string;
};
export type SourceUploadMaterializedFile = {
    file: SourceUploadCacheFile;
    entry: SourceUploadMaterializedEntry;
    sha256: string;
};
export declare function readSourceUploadCache(rootPath: string): Promise<Map<string, SourceUploadCacheEntry>>;
export declare function materializeSourceUploadFile(file: SourceUploadCacheFile, cache: Map<string, SourceUploadCacheEntry>): Promise<SourceUploadMaterializedFile>;
export declare function writeSourceUploadCache(rootPath: string, files: SourceUploadMaterializedFile[]): Promise<void>;