next.config.js

/** @type {import('next').NextConfig} */
const nextConfig = {
  reactStrictMode: true,
  output: "standalone",
  // need to include(trace) these files, because next cannot determine whether they are important
  // this option doesn't seem to work, so copy them manually in dockerfile
  // unstable_includeFiles: ["./dynamicCache.json", "./defaultDynamicCache.json"]
};
// const withTM = require("next-transpile-modules")(["evergreen-org-crawler"]);

// const config = require('config'); // in case of using node-config
const config = require("./config.json");

function MergeCustomConfig(customConfigFileName) {
  const fs = require("fs");
  const DefaultConfigFileName = "./config.json";

  const DefaultConfig = JSON.parse(
    fs.readFileSync(DefaultConfigFileName, "utf-8")
  );

  let MergedConfigs = DefaultConfig;
  if (fs.existsSync(customConfigFileName)) {
    try {
      const customConfig = JSON.parse(
        fs.readFileSync(customConfigFileName, "utf-8")
      );

      // TODO: check the validity of the values in custom config
      for (const [key, value] of Object.entries(customConfig)) {
        if (!DefaultConfig[key]) {
          console.warn(
            `Ignoring invalid key "${key}" found in ${customConfigFileName}`
          );
        }
      }
      // Overwrite default configs with the custom ones
      MergedConfigs = { ...DefaultConfig, ...customConfig };
    } catch (e) {
      throw new Error(
        `Could not load custom configs from ${customConfigFileName}: ${e}`
      );
    }
  }
  return MergedConfigs;
}

// const CustomConfigFileName = "./customConfig.json";
// const evergreenConfig = MergeCustomConfig(CustomConfigFileName);
// console.log(evergreenConfig)
module.exports = {
  publicRuntimeConfig: {
    ...config,
  },
  webpack5: true,
  webpack(config) {
    config.module.rules.push({
      test: /\.svg$/i,
      issuer: /\.[jt]sx?$/,
      use: ["@svgr/webpack"],
    });

    return config;
  },
  ...nextConfig,
};