refactor: make cli faster (#4690)

Author: alexander-akait

packages/webpack-cli/src/webpack-cli.ts

@@ -0,0 +1,10 @@
+module.exports = function configuration(env) {
+  const configName = env.name;
+  return {
+    name: configName,
+    mode: "development",
+    output: {
+      filename: `./async-${configName}-single.js`,
+    },
+  };
+};

test/api/CLI.test.js

@@ -0,0 +1,20 @@
+module.exports = async () => [
+  {
+    output: {
+      filename: "./multi-async-first.js",
+    },
+    name: "first",
+    entry: "./src/first.js",
+    mode: "development",
+    stats: "minimal",
+  },
+  {
+    output: {
+      filename: "./multi-async-second.js",
+    },
+    name: "second",
+    entry: "./src/second.js",
+    mode: "development",
+    stats: "minimal",
+  },
+];

test/api/resolve-config/resolve-config.test.js

@@ -0,0 +1,7 @@
+module.exports = async () => ({
+  output: {
+    filename: "./async-single.js",
+  },
+  name: "single",
+  mode: "development",
+});