/**
 * Backup System
 * Handles timestamped backups of config files with automatic cleanup
 */
export interface BackupResult {
    success: boolean;
    backupPath: string | null;
    error?: string;
}
export interface BackupInfo {
    path: string;
    timestamp: number;
    date: Date;
    filename: string;
}
/**
 * Create a backup of a config file
 */
export declare function createBackup(configPath: string): BackupResult;
/**
 * List all backups for a config file
 */
export declare function listBackups(configPath: string): BackupInfo[];
/**
 * Get the most recent backup
 */
export declare function getLatestBackup(configPath: string): BackupInfo | null;
/**
 * Cleanup old backups, keeping only MAX_BACKUPS most recent
 */
export declare function cleanupOldBackups(configPath: string): number;
/**
 * Restore from a backup
 */
export declare function restoreBackup(backupPath: string, targetPath: string): BackupResult;
/**
 * Restore from the most recent backup
 */
export declare function restoreLatestBackup(configPath: string): BackupResult;
/**
 * Format backup info for display
 */
export declare function formatBackupInfo(backup: BackupInfo): string;
/**
 * Delete all backups for a config file
 */
export declare function deleteAllBackups(configPath: string): number;
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