/**
 * Statistics from cleanup operation.
 */
export interface CleanupStats {
    tempFilesRemoved: number;
    backupFilesRemoved: number;
    errors: number;
}
/**
 * Clean up orphaned temporary and old backup files from specified directories.
 *
 * This should be called on agent startup to clean up files left behind by
 * crashed deployments. It removes:
 * - Temp files matching pattern .{name}.{pid}.tmp
 * - Backup files (*.bak) older than 24 hours
 *
 * @param directories - List of directories to scan for orphaned files
 * @returns Statistics about the cleanup operation
 */
export declare function cleanupOrphanedFiles(directories: string[]): CleanupStats;
/**
 * Extract unique directories from certificate and secret target configurations.
 *
 * @param certTargets - Array of certificate targets with output paths
 * @param secretTargets - Array of secret targets with file paths
 * @returns Array of unique directory paths
 */
export declare function extractTargetDirectories(certTargets?: {
    outputs?: Record<string, string | undefined>;
}[], secretTargets?: {
    output?: string;
    filePath?: string;
}[]): string[];
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