Add support for ESM

build.js

@@ -15,6 +15,7 @@ const EXTERNALS = [
   `clipanion`,
   `crypto`,
   `os`,
+  `url`,
 ];
 
 const compiler = webpack({

package.json

@@ -19,7 +19,7 @@
     "@yarnpkg/core": "^3.0.0",
     "@yarnpkg/fslib": "^2.5.1",
     "@yarnpkg/plugin-patch": "^3.0.0",
-    "@yarnpkg/plugin-pnp": "^3.0.0",
+    "@yarnpkg/plugin-pnp": "^3.1.0",
     "babel-loader": "^8.1.0",
     "clipanion": "^3.0.0",
     "prettier": "2.5.1",
@@ -47,7 +47,7 @@
     "@yarnpkg/plugin-npm-cli": "3.0.0",
     "@yarnpkg/plugin-pack": "3.0.0",
     "@yarnpkg/plugin-patch": "3.0.0",
-    "@yarnpkg/plugin-pnp": "3.0.1",
+    "@yarnpkg/plugin-pnp": "3.1.0",
     "@yarnpkg/plugin-stage": "3.0.0",
     "@yarnpkg/shell": "3.0.0"
   }

src/InstallBinCommand.ts

@@ -13,6 +13,7 @@ import {
 import binWrapperNodeModulesTmpl from "./tmpl/bin-wrapper-node-modules.sh.in";
 import binWrapperPnpTmpl from "./tmpl/bin-wrapper-pnp.sh.in";
 import { renderTmpl } from "./textUtils";
+import { pathToFileURL } from "url";
 
 // Internal command that creates wrappers for binaries.
 // Used inside the Nix install phase.
@@ -82,13 +83,28 @@ export default class InstallBinCommand extends Command<CommandContext> {
   ) {
     let wrapper;
     switch (configuration.get(`nodeLinker`)) {
-      case `pnp`:
+      case `pnp`: {
+        const pnpPath = getPnpPath(project);
+        const nodeOptions = [];
+        if (await xfs.existsPromise(pnpPath.cjs)) {
+          nodeOptions.push(
+            `--require "${npath.fromPortablePath(pnpPath.cjs)}"`
+          );
+        }
+        if (await xfs.existsPromise(pnpPath.esmLoader)) {
+          nodeOptions.push(
+            `--experimental-loader "${
+              pathToFileURL(npath.fromPortablePath(pnpPath.esmLoader)).href
+            }"`
+          );
+        }
         wrapper = renderTmpl(binWrapperPnpTmpl, {
           NODE_PATH: process.execPath,
-          PNP_PATH: getPnpPath(project).cjs,
+          NODE_OPTIONS: nodeOptions.join(" "),
           BINARY_PATH: binaryPath,
         });
         break;
+      }
       case `node-modules`:
         wrapper = renderTmpl(binWrapperNodeModulesTmpl, {
           NODE_PATH: process.execPath,

src/tmpl/bin-wrapper-pnp.sh.in

@@ -1,3 +1,3 @@
 #!/bin/sh
-export NODE_OPTIONS="--require @@PNP_PATH@@"
+export NODE_OPTIONS='@@NODE_OPTIONS@@'
 exec '@@NODE_PATH@@' '@@BINARY_PATH@@' "$@"

yarn.lock

@@ -1074,22 +1074,22 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@yarnpkg/plugin-pnp@npm:3.0.1":
+"@yarnpkg/plugin-pnp@npm:3.1.0":
-  version: 3.0.1
+  version: 3.1.0
-  resolution: "@yarnpkg/plugin-pnp@npm:3.0.1"
+  resolution: "@yarnpkg/plugin-pnp@npm:3.1.0"
   dependencies:
     "@types/semver": ^7.1.0
-    "@yarnpkg/fslib": ^2.5.1
+    "@yarnpkg/fslib": ^2.6.0
-    "@yarnpkg/plugin-stage": ^3.0.0
+    "@yarnpkg/plugin-stage": ^3.1.0
-    "@yarnpkg/pnp": ^3.0.1
+    "@yarnpkg/pnp": ^3.1.0
     clipanion: ^3.0.1
     micromatch: ^4.0.2
     semver: ^7.1.2
     tslib: ^1.13.0
   peerDependencies:
-    "@yarnpkg/cli": ^3.0.1
+    "@yarnpkg/cli": ^3.1.0
-    "@yarnpkg/core": ^3.0.0
+    "@yarnpkg/core": ^3.1.0
-  checksum: 682fdaab91583a6fb662be05e660a76510df94e5d79c42f51dd19db9d5e3310b29d91111e5a8ed9fc6e382e2b581a9e0342f37852e2af96c98d33c50d9331bd4
+  checksum: 9ffd901263f60c83a116a38e8bb76a9196185b36fde514c95b0336affc879308099db12ae9bd20b8f70f3253791f1127bf4f87ced5a62d2b4529a02115347f6d
   languageName: node
   linkType: hard
 
@@ -1124,7 +1124,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@yarnpkg/pnp@npm:^3.0.1, @yarnpkg/pnp@npm:^3.1.0":
+"@yarnpkg/pnp@npm:^3.1.0":
   version: 3.1.0
   resolution: "@yarnpkg/pnp@npm:3.1.0"
   dependencies:
@@ -3307,7 +3307,7 @@ __metadata:
     "@yarnpkg/core": ^3.0.0
     "@yarnpkg/fslib": ^2.5.1
     "@yarnpkg/plugin-patch": ^3.0.0
-    "@yarnpkg/plugin-pnp": ^3.0.0
+    "@yarnpkg/plugin-pnp": ^3.1.0
     babel-loader: ^8.1.0
     clipanion: ^3.0.0
     prettier: 2.5.1