feat: support Yarn Berry with the node-modules linker

.gitignore

@@ -22,3 +22,6 @@ playwright-report
 
 # Copied at publish time from root /skills/ by scripts/copy-skills.mjs
 packages/node-modules-inspector/skills/
+
+.pnp*
+.yarn

README.md

@@ -12,7 +12,7 @@ Visualize your node_modules, inspect dependencies, and more.
 
 ## Quick Start
 
-Try it by running following command under your `pnpm`/`npm`/`bun` project.
+Try it by running the matching command under your `pnpm`/`npm`/`bun`/Yarn Berry project.
 
 ```bash
 pnpx node-modules-inspector
@@ -23,8 +23,11 @@ npx node-modules-inspector
 ```bash
 bunx node-modules-inspector
 ```
+```bash
+yarn dlx node-modules-inspector
+```
 
-> Currently supports `pnpm`, `npm`, and `bun` projects. We are counting on the community to bring support for other package managers.
+> Currently supports `pnpm`, `npm`, `bun`, and Yarn Berry projects using the `node-modules` linker. Yarn Plug'n'Play isn't supported because the inspector needs a physical `node_modules` tree to analyze package files and install sizes. To use Yarn Berry, set `nodeLinker: node-modules` in `.yarnrc.yml` and run `yarn install` first.
 
 ### Online Version
 

eslint.config.js

@@ -13,7 +13,10 @@ export default antfu({
     },
   })
   .append({
-    files: ['packages/node-modules-tools/test/*/fixtures/**/package.json'],
+    files: [
+      'fixtures/**/package.json',
+      'packages/node-modules-tools/test/*/fixtures/**/package.json',
+    ],
     rules: {
       'pnpm/json-enforce-catalog': 'off',
       'pnpm/json-valid-catalog': 'off',

fixtures/yarn/.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

fixtures/yarn/dev.mjs

@@ -0,0 +1,21 @@
+/* eslint-disable antfu/no-top-level-await */
+import process from 'node:process'
+import { fileURLToPath } from 'node:url'
+import { x } from 'tinyexec'
+
+const cwd = process.cwd()
+const inspector = fileURLToPath(new URL('../../packages/node-modules-inspector', import.meta.url))
+
+await x('pnpm', ['run', 'stub'], {
+  nodeOptions: {
+    cwd: inspector,
+    stdio: 'inherit',
+  },
+})
+
+await x('node', ['./bin.mjs', '--root', cwd], {
+  nodeOptions: {
+    cwd: inspector,
+    stdio: 'inherit',
+  },
+})

fixtures/yarn/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "node-modules-inspector-yarn-fixture",
+  "type": "module",
+  "version": "0.0.0",
+  "private": true,
+  "packageManager": "yarn@4.7.0",
+  "scripts": {
+    "dev": "node dev.mjs"
+  },
+  "dependencies": {
+    "vite": "^6.0.0",
+    "vite-plugin-inspect": "^11.0.0"
+  },
+  "devDependencies": {
+    "tinyexec": "^0.3.2"
+  }
+}