/**
 * File scanning utilities for codebase indexing
 */
import { type Ignore } from 'ignore';
export type { Ignore };
/**
 * Detect programming language from file extension
 */
export declare function detectLanguage(filePath: string): string | undefined;
/**
 * Check if file is text-based (not binary)
 */
export declare function isTextFile(filePath: string): boolean;
/**
 * Load .gitignore file and create ignore filter
 */
export declare function loadGitignore(codebaseRoot: string): Ignore;
/**
 * Scan directory recursively for files
 */
export interface ScanOptions {
    ignoreFilter?: Ignore;
    codebaseRoot?: string;
    maxFileSize?: number;
}
export interface ScanResult {
    path: string;
    absolutePath: string;
    content: string;
    size: number;
    mtime: number;
    language?: string;
}
/**
 * File metadata without content (memory optimization)
 */
export interface FileMetadata {
    path: string;
    absolutePath: string;
    size: number;
    mtime: number;
    language?: string;
}
/**
 * Scan files in directory with .gitignore support
 */
export declare function scanFiles(dir: string, options?: ScanOptions): ScanResult[];
/**
 * Scan file metadata only (without reading content) - Memory optimization
 * Returns generator that yields file metadata one at a time
 */
export declare function scanFileMetadata(dir: string, options?: ScanOptions): Generator<FileMetadata>;
/**
 * Read file content (separate from scanning for memory efficiency)
 */
export declare function readFileContent(absolutePath: string): string | null;
/**
 * Calculate simple hash for file content (for change detection)
 */
export declare function simpleHash(content: string): string;
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