Fix windows ESM issue (#48)

packages/core/src/config.ts

@@ -8,6 +8,7 @@ import { readHistory } from "./history.js";
 import { readKnownIssues } from "./known.js";
 import { FileSystemReportFiles } from "./plugin.js";
 import { importWrapper } from "./utils/module.js";
+import { normalizeImportPath } from "./utils/path.js";
 
 export const getPluginId = (key: string) => {
   return key.replace(/^@.*\//, "").replace(/[/\\]/g, "-");
@@ -19,21 +20,26 @@ const defaultConfig: Config = {};
 export const findConfig = async (cwd: string, configPath?: string) => {
   if (configPath) {
     const resolved = resolve(cwd, configPath);
+
     try {
       const stats = await stat(resolved);
+
       if (stats.isFile()) {
         return resolved;
       }
     } catch (e) {
       console.error(e);
     }
+
     throw new Error(`invalid config path ${resolved}: not a regular file`);
   }
 
   for (const configName of configNames) {
     const resolved = resolve(cwd, configName);
+
     try {
       const stats = await stat(resolved);
+
       if (stats.isFile()) {
         return resolved;
       }
@@ -61,7 +67,7 @@ export const readConfig = async (
 };
 
 export const loadConfig = async (configPath: string): Promise<Config> => {
-  return (await import(configPath)).default;
+  return (await import(normalizeImportPath(configPath))).default;
 };
 
 export const resolveConfig = async (config: Config, override: ConfigOverride = {}): Promise<FullConfig> => {

packages/core/src/index.ts

@@ -1,6 +1,7 @@
 export type * from "./api.js";
 export * from "./utils/misc.js";
 export * from "./utils/crypto.js";
+export * from "./utils/path.js";
 export * from "./history.js";
 export * from "./known.js";
 export { resolveConfig, readConfig } from "./config.js";

packages/core/src/utils/module.ts

@@ -1,7 +1,12 @@
+import { createRequire } from "node:module";
+import { normalizeImportPath } from "./path.js";
+
+const require = createRequire(import.meta.url);
+
 /**
  * Dead simple wrapper around import function to make it possible to mock it in the tests
  * @param path
  */
 export const importWrapper = async (path: string) => {
-  return import(path);
+  return import(normalizeImportPath(require.resolve(path)));
 };

packages/core/src/utils/path.ts

@@ -0,0 +1,9 @@
+import { pathToFileURL } from "node:url";
+
+/**
+ * The function appends `file:///` protocol to the absolute paths on Windows due to ES modules imports specifics
+ * @param path
+ */
+export const normalizeImportPath = (path: string) => {
+  return pathToFileURL(path).href;
+};