import type { OptimizeConfig } from './types';
export interface FileCacheSnapshot {
    size: number;
    mtimeMs: number;
}
export interface OptimizeCache {
    filePath: string;
    get(relativePath: string): FileCacheSnapshot | null;
    set(relativePath: string, snapshot: FileCacheSnapshot): void;
    delete(relativePath: string): void;
    save(): Promise<void>;
}
export declare function getDefaultCacheRoot(): string;
export declare function createFileSnapshot(stat: Pick<FileCacheSnapshot, 'size' | 'mtimeMs'>): FileCacheSnapshot;
export declare function isSnapshotMatch(current: FileCacheSnapshot, cached: FileCacheSnapshot | null | undefined): boolean;
export declare function buildCacheKey(config: Pick<OptimizeConfig, 'dirs' | 'dryRun' | 'force' | 'rewriteImports' | 'maxWidth' | 'formatAllowlist'>): string;
export declare function loadOptimizeCache(config: Pick<OptimizeConfig, 'cache' | 'cacheDir' | 'dirs' | 'dryRun' | 'force' | 'rewriteImports' | 'maxWidth' | 'formatAllowlist'>): Promise<OptimizeCache | null>;