--- /dev/null
+/**
+ * Utility for resolving a module relative to another module
+ * @author Teddy Katz
+ */
+
+"use strict";
+
+const Module = require("module");
+const path = require("path");
+
+// Polyfill Node's `Module.createRequire` if not present. We only support the case where the argument is a filepath, not a URL.
+const createRequire = (
+
+ // Added in v12.2.0
+ Module.createRequire ||
+
+ // Added in v10.12.0, but deprecated in v12.2.0.
+ Module.createRequireFromPath ||
+
+ // Polyfill - This is not executed on the tests on node@>=10.
+ /* istanbul ignore next */
+ (filename => {
+ const mod = new Module(filename, null);
+
+ mod.filename = filename;
+ mod.paths = Module._nodeModulePaths(path.dirname(filename)); // eslint-disable-line no-underscore-dangle
+ mod._compile("module.exports = require;", filename); // eslint-disable-line no-underscore-dangle
+ return mod.exports;
+ })
+);
+
+module.exports = {
+
+ /**
+ * Resolves a Node module relative to another module
+ * @param {string} moduleName The name of a Node module, or a path to a Node module.
+ *
+ * @param {string} relativeToPath An absolute path indicating the module that `moduleName` should be resolved relative to. This must be
+ * a file rather than a directory, but the file need not actually exist.
+ * @returns {string} The absolute path that would result from calling `require.resolve(moduleName)` in a file located at `relativeToPath`
+ */
+ resolve(moduleName, relativeToPath) {
+ try {
+ return createRequire(relativeToPath).resolve(moduleName);
+ } catch (error) {
+ if (
+ typeof error === "object" &&
+ error !== null &&
+ error.code === "MODULE_NOT_FOUND" &&
+ !error.requireStack &&
+ error.message.includes(moduleName)
+ ) {
+ error.message += `\nRequire stack:\n- ${relativeToPath}`;
+ }
+ throw error;
+ }
+ }
+};