fix(plugin): mark assets as minimized only when minified

src/plugin.ts

@@ -37,6 +37,13 @@
 		...transformOptions
 	} = options;
 
+	const minimized = (
+		transformOptions.minify
+		|| transformOptions.minifyWhitespace
+		|| transformOptions.minifyIdentifiers
+		|| transformOptions.minifySyntax
+	);
+
 	const assets = (compilation.getAssets() as Asset[]).filter(asset => (
 
 		// Filter out already minimized
@@ -97,16 +104,16 @@
 					? new SourceMapSource(
 						result.code,
 						asset.name,
 						result.map as any,
 						sourceAsString,
 						map as any,
 						true,
 					)
 					: new RawSource(result.code)
 			) as any,
 			{
 				...asset.info,
-				minimized: true,
+				minimized,
 			},
 		);
 	}));
@@ -131,7 +138,7 @@
 		this.options = options;
 	}
 
 	apply(compiler: Compiler) {
 		const {
 			implementation,
 			...options

tests/specs/plugin.ts

@@ -176,6 +176,24 @@ export default testSuite(({ describe }, webpack: typeof webpack4 | typeof webpac
 				expect(code).not.toMatch('return ');
 			});
 
+			test('should minify when used alongside plugin', async () => {
+				const built = await build(
+					fixtures.minification,
+					(config) => {
+						configureEsbuildMinifyPlugin(config);
+						config.plugins?.push(new EsbuildPlugin());
+					},
+					webpack,
+				);
+
+				expect(built.stats.hasWarnings()).toBe(false);
+				expect(built.stats.hasErrors()).toBe(false);
+
+				const exportedFunction = built.require('/dist/');
+				expect(exportedFunction('hello world')).toBe('hello world');
+				assertMinified(exportedFunction.toString());
+			});
+
 			test('minify chunks & filter using include/exclude', async () => {
 				const built = await build({
 					'/src/index.js': `