Update terser-webpack-plugin

Following our other projects.

cockpit-starter-kit.spec.in

@@ -28,7 +28,7 @@ find %{buildroot}%{_datadir}/cockpit/ -name '*.map' | xargs --no-run-if-empty rm
 
 %files
 %doc README.md
-%license LICENSE dist/index.js.LICENSE.txt
+%license LICENSE dist/index.js.LICENSE.txt.gz
 %{_datadir}/cockpit/*
 %{_datadir}/metainfo/*
 

package.json

@@ -43,7 +43,7 @@
     "sizzle": "^2.3.3",
     "stdio": "^2.1.0",
     "string-replace-loader": "^3.0.0",
-    "terser-webpack-plugin": "^2.0.1",
+    "terser-webpack-plugin": "^5.1.4",
     "webpack": "^5.31.0",
     "webpack-cli": "^4.6.0"
   },

packit.yaml

@@ -12,7 +12,7 @@ actions:
   create-archive:
     - make NODE_ENV=development NODE_OPTIONS=--max-old-space-size=500
     # dummy LICENSE.txt, as terser did not run
-    - touch dist/index.js.LICENSE.txt
+    - touch dist/index.js.LICENSE.txt.gz
     - make dist-gzip
   # starter-kit.git has no release tags; your project can drop this once you have a release
   get-current-version: make print-version

webpack.config.js

@@ -58,7 +58,18 @@ module.exports = {
 
     optimization: {
         minimize: production,
-        minimizer: [new TerserJSPlugin(), new CssMinimizerPlugin()],
+        minimizer: [
+            new TerserJSPlugin({
+                extractComments: {
+                    condition: true,
+                    filename: `[file].LICENSE.txt?query=[query]&filebase=[base]`,
+                    banner(licenseFile) {
+                        return `License information can be found in ${licenseFile}`;
+                    },
+                },
+            }),
+            new CssMinimizerPlugin()
+        ],
     },
 
     module: {