feat: show minimized assets in stats for webpack@5 (#19)

Author: cap-Bernardito

src/index.js

@@ -526,6 +526,17 @@ class CssMinimizerPlugin {
           plugin,
           optimizeFn.bind(this, compilation)
         );
+
+        compilation.hooks.statsPrinter.tap(plugin, (stats) => {
+          stats.hooks.print
+            .for('asset.info.minimized')
+            .tap(
+              'css-minimizer-webpack-plugin',
+              (minimized, { green, formatFlag }) =>
+                // eslint-disable-next-line no-undefined
+                minimized ? green(formatFlag('minimized')) : undefined
+            );
+        });
       }
     });
   }

test/CssMinimizerPlugin.test.js

@@ -371,4 +371,23 @@ describe('CssMinimizerPlugin', () => {
     expect(getErrors(stats)).toMatchSnapshot('errors');
     expect(getWarnings(stats)).toMatchSnapshot('warnings');
   });
+
+  it('should work and show minimized assets in stats', async () => {
+    const compiler = getCompiler({
+      entry: {
+        foo: `${__dirname}/fixtures/entry.js`,
+      },
+    });
+
+    new CssMinimizerPlugin().apply(compiler);
+
+    const stats = await compile(compiler);
+
+    expect(stats.toString().indexOf('[minimized]') !== -1).toBe(
+      !getCompiler.isWebpack4()
+    );
+    expect(readAssets(compiler, stats, '.css')).toMatchSnapshot('assets');
+    expect(getErrors(stats)).toMatchSnapshot('errors');
+    expect(getWarnings(stats)).toMatchSnapshot('warnings');
+  });
 });

test/__snapshots__/CssMinimizerPlugin.test.js.snap.webpack4

@@ -59,6 +59,16 @@ exports[`CssMinimizerPlugin should respect the hash options #1: errors 1`] = `Ar
 
 exports[`CssMinimizerPlugin should respect the hash options #1: warnings 1`] = `Array []`;
 
+exports[`CssMinimizerPlugin should work and show minimized assets in stats: assets 1`] = `
+Object {
+  "foo.css": "body{color:red}a{color:#00f}",
+}
+`;
+
+exports[`CssMinimizerPlugin should work and show minimized assets in stats: errors 1`] = `Array []`;
+
+exports[`CssMinimizerPlugin should work and show minimized assets in stats: warnings 1`] = `Array []`;
+
 exports[`CssMinimizerPlugin should work with assets using querystring: entry.css.map?v=test 1`] = `"{\\"version\\":3,\\"sources\\": [replaced for tests], \\"names\\":[],\\"mappings\\":\\"AAAA,KACE,SACF,CACA,EACE,UACF\\",\\"file\\":\\"entry.css?v=test\\",\\"sourcesContent\\":[\\"body {\\\\n  color: red;\\\\n}\\\\na {\\\\n  color: blue;\\\\n}\\"],\\"sourceRoot\\":\\"\\"}"`;
 
 exports[`CssMinimizerPlugin should work with assets using querystring: entry.css?v=test 1`] = `

test/__snapshots__/CssMinimizerPlugin.test.js.snap.webpack5

@@ -59,6 +59,16 @@ exports[`CssMinimizerPlugin should respect the hash options #1: errors 1`] = `Ar
 
 exports[`CssMinimizerPlugin should respect the hash options #1: warnings 1`] = `Array []`;
 
+exports[`CssMinimizerPlugin should work and show minimized assets in stats: assets 1`] = `
+Object {
+  "foo.css": "body{color:red}a{color:#00f}",
+}
+`;
+
+exports[`CssMinimizerPlugin should work and show minimized assets in stats: errors 1`] = `Array []`;
+
+exports[`CssMinimizerPlugin should work and show minimized assets in stats: warnings 1`] = `Array []`;
+
 exports[`CssMinimizerPlugin should work with assets using querystring: entry.css.map?v=test 1`] = `"{\\"version\\":3,\\"sources\\": [replaced for tests], \\"names\\":[],\\"mappings\\":\\"AAAA,KACE,SACF,CACA,EACE,UACF\\",\\"file\\":\\"entry.css?v=test\\",\\"sourcesContent\\":[\\"body {\\\\n  color: red;\\\\n}\\\\na {\\\\n  color: blue;\\\\n}\\"],\\"sourceRoot\\":\\"\\"}"`;
 
 exports[`CssMinimizerPlugin should work with assets using querystring: entry.css?v=test 1`] = `