before-build.mjs

import { promises as fs } from "fs";
import path from "path";
import { fileURLToPath } from "url";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const file_js = path.join(__dirname, "./node_modules/gojs/release/go.js");
const file_mjs = path.join(__dirname, "./node_modules/gojs/release/go.mjs");
const file_module = path.join(
  __dirname,
  "./node_modules/gojs/release/go-module.js"
);
const file_debug_js = path.join(
  __dirname,
  "./node_modules/gojs/release/go-debug.js"
);
const file_debug_mjs = path.join(
  __dirname,
  "./node_modules/gojs/release/go-debug.mjs"
);
const file_debug_module = path.join(
  __dirname,
  "./node_modules/gojs/release/go-debug-module.js"
);

const doReplace = async (filePath) => {
  try {
    const data = await fs.readFile(filePath, "utf8");
    const content = data.replace(
      /o\+=String\.fromCharCode\(t\.charCodeAt\(r\)\^i\[\(i\[e\]\+i\[s\]\)%256\]\);return o\}/gi,
      function (match) {
        if (match) {
          return `o+=String.fromCharCode(t.charCodeAt(r)^i[(i[e]+i[s])%256]);if (o.indexOf("GoJS 3.0 evaluation") > -1 || o.indexOf("(c) 1998-2024 Northwoods Software") > -1 || o.indexOf("Not for distribution or production use") > -1 || o.indexOf("gojs.net") > -1) {return "";} else {return o;}}`;
        }
      }
    );
    await fs.writeFile(filePath, content, "utf8");
  } catch (err) {
    console.error(`Error processing file ${filePath}:`, err);
  }
};

(async () => {
  await doReplace(file_js);
  await doReplace(file_mjs);
  await doReplace(file_module);
  await doReplace(file_debug_js);
  await doReplace(file_debug_mjs);
  await doReplace(file_debug_module);
})();