creatrip-agent-rules-builder/src/parser.ts

Unified converter for AI coding agent rules across Cursor, Windsurf, and Claude

import * as fs from "fs";
import * as path from "path";
import { parseTree, getNodeValue } from "jsonc-parser";
import { ParsedContent, AgentConfig } from "./types";

export function parseAgentRulesFile(filePath: string): ParsedContent {
  if (!fs.existsSync(filePath)) {
    throw new Error(`파일을 찾을 수 없습니다: ${filePath}`);
  }

  const content = fs.readFileSync(filePath, "utf8");

  // JSONC 설정 블록 찾기
  const configBlockRegex =
    /```(?:jsonc|json)\s+agent-rules-config\s*\n([\s\S]*?)\n```/;
  const match = content.match(configBlockRegex);

  let config: AgentConfig = {};
  let rules = content;

  if (match) {
    try {
      // JSONC 파싱
      const configText = match[1];
      const tree = parseTree(configText);
      if (tree) {
        config = getNodeValue(tree) as AgentConfig;
      }

      // 설정 블록을 제거한 나머지를 규칙으로 사용
      rules = content.replace(configBlockRegex, "").trim();
    } catch (error) {
      throw new Error(
        `JSONC 설정 파싱 오류: ${
          error instanceof Error ? error.message : String(error)
        }`,
      );
    }
  }

  return {
    rules,
    config,
  };
}

export function getDefaultRulesFilePath(): string {
  return path.resolve(process.cwd(), "AGENTS.md");
}