From 5385d249cb955df648c74e40644585b61ac2482c Mon Sep 17 00:00:00 2001
From: Joe Hildebrand <joe-github@cursive.net>
Date: Thu, 17 Oct 2024 15:31:29 -0600
Subject: [PATCH] Fixes #567.  Use file: URLs to import ES6.

---
 CHANGELOG.md | 21 ++++++++-------------
 bin/opts.js  |  6 ++++--
 2 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0177290c..3a804da2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,8 @@ Released: TBD
 
 ### Bug fixes
 
+- [#567](https://github.com/peggyjs/peggy/issues/567) Load config files and plugins correctly on Windows by using file: URIs in import().
+
 ### Documentation
 
 4.1.0
@@ -23,23 +25,16 @@ Released: 2024-10-03
 
 ### New features
 
-- [#477](https://github.com/peggyjs/peggy/issues/477) Option to output .d.ts
-  files next to .js from CLI.
+- [#477](https://github.com/peggyjs/peggy/issues/477) Option to output .d.ts files next to .js from CLI.
 - [#530](https://github.com/peggyjs/peggy/issues/531) Allow es6 plugins from CLI
-- [#532](https://github.com/peggyjs/peggy/issues/532) Allow es6 options files
-  from the CLI
+- [#532](https://github.com/peggyjs/peggy/issues/532) Allow es6 options files from the CLI
 
 ### Bug fixes
 
-- [#531](https://github.com/peggyjs/peggy/issues/531) Clean up rollup hacks
-  from CLI code.
-- [#514](https://github.com/peggyjs/peggy/issues/514) Allow execution of
-  the `peggy` binary on Windows by handling node runtime flags manually,
-  executing a sub-instance of node to actually run `peggy`.
-- [#538](https://github.com/peggyjs/peggy/pull/509) Fixed error in TS types
-  for `peg$maxFailExpected` and `peg$maxFailPos`.
-- [#551](https://github.com/peggyjs/peggy/pull/551) Moved to package-extract
-  instead of a custom script for version file generation.
+- [#531](https://github.com/peggyjs/peggy/issues/531) Clean up rollup hacks from CLI code.
+- [#514](https://github.com/peggyjs/peggy/issues/514) Allow execution of the `peggy` binary on Windows by handling node runtime flags manually, executing a sub-instance of node to actually run `peggy`.
+- [#538](https://github.com/peggyjs/peggy/pull/509) Fixed error in TS types for `peg$maxFailExpected` and `peg$maxFailPos`.
+- [#551](https://github.com/peggyjs/peggy/pull/551) Moved to package-extract instead of a custom script for version file generation.
 
 4.0.3
 -----
diff --git a/bin/opts.js b/bin/opts.js
index 99345985..fc43bd43 100644
--- a/bin/opts.js
+++ b/bin/opts.js
@@ -10,6 +10,7 @@ const fs = require("fs");
 const path = require("path");
 const { InvalidArgumentError } = require("commander");
 const { isErrno, isER, replaceExt, select } = require("./utils.js");
+const { pathToFileURL } = require("url");
 
 const MODULE_FORMATS_WITH_DEPS = ["amd", "commonjs", "es", "umd"];
 const MODULE_FORMATS_WITH_GLOBAL = ["globals", "umd"];
@@ -140,7 +141,8 @@ function addExtraOptionsJSON(cmd, json, source) {
 async function loadConfig(cmd, val) {
   if (/\.[cm]?js$/.test(val)) {
     try {
-      const eOpts = await import(path.resolve(val));
+      const configURL = pathToFileURL(path.resolve(val)).toString();
+      const eOpts = await import(configURL);
       addExtraOptions(cmd, eOpts.default, "extra-options-file");
     } catch (error) {
       isER(error);
@@ -171,7 +173,7 @@ async function loadPlugin(cmd, val) {
 
   // If this is an absolute or relative path (not a module name)
   const id = (path.isAbsolute(val) || /^\.\.?[/\\]/.test(val))
-    ? path.resolve(val)
+    ? pathToFileURL(path.resolve(val)).toString()
     : val; // Otherwise, it's an NPM module
 
   /** @type {PEG.Plugin=} */