patch-eslint6.js

const path = require("path");

let currentModule = module;
while (
	!/[\\/]eslint[\\/]lib[\\/]cli-engine[\\/]config-array-factory\.js/i.test(
		currentModule.filename
	)
) {
	if (!currentModule.parent) {
		// This was tested with ESLint 6.1.0; other versions may not work
		throw new Error(
			"Failed to patch ESLint because the calling module was not recognized"
		);
	}
	currentModule = currentModule.parent;
}
const eslintFolder = path.join(path.dirname(currentModule.filename), "../..");

const configArrayFactoryPath = path.join(
	eslintFolder,
	"lib/cli-engine/config-array-factory"
);
const configArrayFactoryModule = require(configArrayFactoryPath);

const moduleResolverPath = path.join(eslintFolder, "lib/shared/relative-module-resolver");
const ModuleResolver = require(moduleResolverPath);

const originalLoadPlugin =
	configArrayFactoryModule.ConfigArrayFactory.prototype._loadPlugin;
configArrayFactoryModule.ConfigArrayFactory.prototype._loadPlugin = function (
	name,
	importerPath,
	importerName
) {
	const originalResolve = ModuleResolver.resolve;
	try {
		ModuleResolver.resolve = function (moduleName, relativeToPath) {
			// resolve using importerPath instead of relativeToPath
			return originalResolve.call(this, moduleName, importerPath);
		};
		return originalLoadPlugin.apply(this, arguments);
	} finally {
		ModuleResolver.resolve = originalResolve;
	}
};