export declare class GitService {
    private logger;
    private static instance;
    private constructor();
    static getInstance(): GitService;
    isGitRepository(projectPath: string): Promise<boolean>;
    getCurrentCommitHash(projectPath: string): string | null;
    getChangedFiles(projectPath: string, sinceCommit?: string, lastAnalysisCommit?: string): string[];
    loadLastAnalysisCommit(cacheDir: string): Promise<string | null>;
    saveLastAnalysisCommit(cacheDir: string, commitHash: string): Promise<void>;
    getAllTrackedFiles(projectPath: string): string[];
    isFileTracked(projectPath: string, filePath: string): boolean;
    getLastCommitForFile(projectPath: string, filePath: string): string | null;
    getFileStatus(projectPath: string, filePath: string): 'modified' | 'added' | 'deleted' | 'untracked' | 'unchanged';
}
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