type FileChangeBase = {
    upstreamFileName: string;
};
export type FileChange = FileChangeBase & ({
    type: 'update';
    changes: LineChange[] | Buffer;
} | {
    type: 'delete';
} | {
    type: 'rename' | 'copy';
    nextUpstreamFileName: string;
    similarity: number;
    changes: LineChange[];
} | {
    type: 'type';
});
export type LineChange = {
    type: 'insert-line';
    lineNumber: number;
    content: string;
} | {
    type: 'delete-line';
    lineNumber: number;
};
export type FileStatus = {
    status: 'M' | 'A' | 'D' | 'T';
    headFileName: string;
} | {
    status: 'R' | 'C';
    headFileName: string;
    nextHeadFileName: string;
    similarity: number;
};
export {};