Upgrade to yarn 3

Author: Fryguy

.gitignore

@@ -1,9 +1,17 @@
 # yarn/npm
-node_modules/
 npm-debug.log
 package-lock.json
 yarn-error.log
-yarn.lock
+
+/node_modules/
+/yarn.lock
+/.pnp.*
+/.yarn/*
+!/.yarn/patches
+!/.yarn/plugins
+!/.yarn/releases
+!/.yarn/sdks
+!/.yarn/versions
 
 # coverage
 reports/

.yarn/releases/yarn-3.0.2.cjs

@@ -0,0 +1,3 @@
+enableGlobalCache: true
+nodeLinker: node-modules
+yarnPath: .yarn/releases/yarn-3.0.2.cjs

.yarnrc.yml

@@ -190,7 +190,7 @@ module.exports = {
     // noVNC doesn't package the vnc_lite viewer that we need, so we have to
     // fetch it separately.
     new SaveRemoteFilePlugin({
-      url: `https://raw.githubusercontent.com/novnc/noVNC/v${execSync(`yarn list --silent --pattern @novnc/novnc | cut -d '@' -f 3 | tr -d '\n'`, {encoding: 'utf-8'})}/vnc_lite.html`,
+      url: `https://raw.githubusercontent.com/novnc/noVNC/v${execSync(`yarn info --name-only @novnc/novnc | cut -d ':' -f 2 | tr -d '\n'`, {encoding: 'utf-8'})}/vnc_lite.html`,
       filepath: 'vendor/noVNC/vnc_lite.html',
       hash: false
     }),

config/webpack.dev.js

@@ -134,7 +134,7 @@
   ],
   "engines": {
     "node": ">= 12.0.0",
-    "npm": ">= 6.0.0",
-    "yarn": ">= 1.0.0"
-  }
+    "npm": ">= 6.0.0"
+  },
+  "packageManager": "[email protected]"
 }