import type { DtsGenerationConfig } from './types';
/**
 * Add .dtsx-cache to .gitignore if not already present
 */
export declare function ensureGitignore(cwd: string): void;
/**
 * Cache entry for a single file
 */
export declare interface CacheEntry {
  sourcePath: string
  sourceHash: string
  sourceMtime: number
  sourceCtime: number
  sourceSize: number
  dtsContent: string
  dtsHash: string
  generatedAt: number
  configHash: string
}
/**
 * Cache manifest containing all cached entries
 */
export declare interface CacheManifest {
  version: number
  configHash: string
  entries: Record<string, CacheEntry>
  createdAt: number
  updatedAt: number
}
/**
 * Incremental build cache manager
 */
export declare class BuildCache {
  constructor(config: DtsGenerationConfig);
  load(): boolean;
  save(): void;
  needsRegeneration(filePath: string, cwd: string): boolean;
  getCached(filePath: string, cwd: string): string | null;
  getCachedIfValid(filePath: string, cwd: string): string | null;
  update(filePath: string, sourceContent: string, dtsContent: string, cwd: string): void;
  remove(filePath: string, cwd: string): void;
  clear(): void;
  getStats(): { entries: number, size: number };
  prune(existingFiles: Set<string>, cwd: string): number;
}