eslint-import-require-node-prefix

eslint-import-require-node-prefix.js

// License: https://unlicense.org/
// @ts-check
const { builtinModules } = require("module");

/**
 * @type {import("eslint").Rule.RuleModule}
 */
module.exports = {
  meta: {
    type: "problem",
    docs: {
      description:
        "Disallow imports of built-in Node.js modules without the `node:` prefix",
      category: "Best Practices",
      recommended: true,
    },
    fixable: "code",
    schema: [],
  },
  create: context => ({
    ImportDeclaration(node) {
      const { source } = node;

      if (source?.type === "Literal" && typeof source.value === "string") {
        const moduleName = source.value;

        if (builtinModules.includes(moduleName) && !moduleName.startsWith("node:")) {
          context.report({
            node: source,
            message: `Import of built-in Node.js module "${moduleName}" must use the "node:" prefix.`,
            fix: fixer => fixer.replaceText(source, `"node:${moduleName}"`),
          });
        }
      }
    },
  }),
};