buster/apps/web/nitro.config.js

// Configuration for warning suppressions - easily extensible
const WARNING_SUPPRESSIONS = {
  MODULE_LEVEL_DIRECTIVE: {
    patterns: ["node_modules/"],
    reason: "Suppress 'use client' directive warnings from dependencies",
  },
  THIS_IS_UNDEFINED: {
    patterns: ["node_modules/"],
    reason: "Suppress 'this' keyword warnings in ES modules from dependencies",
  },
  CIRCULAR_DEPENDENCY: {
    patterns: [
      "nitropack/dist/runtime/internal/",
      "@tanstack/store/dist",
      "juice/lib/",
    ],
    reason: "Suppress known third-party circular dependency warnings",
  },
};

// Additional message-based suppressions
const MESSAGE_SUPPRESSIONS = [
  "The 'this' keyword is equivalent to 'undefined'",
];

function shouldSuppressWarning(warning) {
  const message = warning.message || "";

  // Check code-based suppressions
  const suppression = WARNING_SUPPRESSIONS[warning.code];
  if (suppression) {
    return suppression.patterns.some((pattern) => message.includes(pattern));
  }

  // Check message-based suppressions
  return MESSAGE_SUPPRESSIONS.some((suppressionMessage) =>
    message.includes(suppressionMessage)
  );
}

export default {
  rollupConfig: {
    onwarn(warning, defaultHandler) {
      if (shouldSuppressWarning(warning)) {
        return;
      }

      // Handle all other warnings normally
      defaultHandler(warning);
    },
  },
};