Use swc for compact=minify and compact=mangle

Author: moonglum

lib/bundle/config.js

@@ -52,7 +52,7 @@ function generateConfig({ externals, format, exports, // eslint-disable-next-lin
 	let plugins = [];
 	let extensions = [".js"];
 
-	if(esnext || typescript || jsx) {
+	if(esnext || typescript || jsx || compact === "minify" || compact === "mangle") {
 		// TODO: Improve error message (correct extension name)
 		let { default: swc } = loadExtension("rollup-plugin-swc",
 				"failed to activate SWC");
@@ -68,7 +68,8 @@ function generateConfig({ externals, format, exports, // eslint-disable-next-lin
 			typescript,
 			jsx,
 			sourcemaps,
-			browsers
+			browsers,
+			compact
 		});
 		plugins.push(swc(swcConfig));
 	}
@@ -79,7 +80,9 @@ function generateConfig({ externals, format, exports, // eslint-disable-next-lin
 	]);
 	if(compact) {
 		cfg.compact = true;
-		plugins = plugins.concat(determineCompacting(compact));
+	}
+	if(compact === true || compact === "compact") {
+		plugins = plugins.concat(require("rollup-plugin-cleanup")());
 	}
 	cfg.plugins = plugins;
 
@@ -124,23 +127,3 @@ function determineModuleFormat(format = "esm") {
 		return _format;
 	}
 }
-
-function determineCompacting(type = true) {
-	switch(type) {
-	case true: // default
-	case "compact":
-		return require("rollup-plugin-cleanup")();
-	case "minify":
-		var options = { compress: false, mangle: false }; // eslint-disable-line no-var
-		break;
-	case "mangle":
-		options = { compress: false, mangle: true };
-		break;
-	default:
-		abort(`unknown compacting option ${type}`);
-	}
-
-	let { terser } = loadExtension("rollup-plugin-terser",
-			"failed to activate minification", "faucet-pipeline-jsmin");
-	return terser(options);
-}

lib/bundle/swc.js

@@ -1,4 +1,4 @@
-exports.generateSWCConfig = function({ esnext, typescript, jsx, sourcemaps, browsers }) {
+exports.generateSWCConfig = function({ esnext, typescript, jsx, sourcemaps, browsers, compact }) {
 	let env;
 	let rollup = {};
 	let jsc = {
@@ -50,7 +50,14 @@ exports.generateSWCConfig = function({ esnext, typescript, jsx, sourcemaps, brow
 		return /^\.{0,2}\//.test(pkg) ? pkg : `node_modules/${pkg}/**`;
 	});
 
+	let mangle = compact === "mangle";
+	if(mangle || compact === "minify") {
+		var minify = true; // eslint-disable-line no-var
+		jsc.minify = { compress: false, mangle };
+	}
+
 	return {
+		minify,
 		rollup,
 		env,
 		jsc

pkg/faucet-pipeline-jsmin/package.json

@@ -13,6 +13,7 @@
 		"url": "https://github.com/faucet-pipeline/faucet-pipeline-js/issues"
 	},
 	"dependencies": {
-		"rollup-plugin-terser": "^7.0.2"
+		"@swc/core": "^1.2.145",
+		"rollup-plugin-swc": "^0.2.1"
 	}
 }

test/cli/test_mangle/expected_compacted.js

@@ -1 +1 @@
-var n="UTIL";function o(){console.log(`[…] ${n}`)}function c(){o()}c();
+var b = "UTIL";function c(){console.log(`[…] ${b}`);}function a(){c();}a();

test/cli/test_minify/expected_compacted.js

@@ -1 +1 @@
-var util="UTIL";function info(){console.log(`[…] ${util}`)}function help(){info()}help();
+var util = "UTIL";function info(){console.log(`[…] ${util}`);}function help(){info();}help();