Automatically configure sourceType for .js files

[phanect]

"use strict";

const { autoConfig } = require("eslint-config-phanective");

module.exports = deepmerge({
  root: true,
  extends: "phanective/node",
  // ...
}, autoConfig(__dirname));

to set if .js files should be treated as a JSM or CommonJS.

module.exports = {
  autoConfig: async (projectRoot) => {
    const { type } = await readFile(join(projectRoot, "package.json"));

    return {
      overrides: [{
        files: [ "*.js", "**/*.js" ],
        parserOptions: {
          sourceType: (!type || type === "commonjs") ? "script" : "module",
        },
      }],
    };
  },
};