Add debug launch conf for VS Code (#7683)

build-scripts/gulp/webpack.js

@@ -18,6 +18,14 @@ const bothBuilds = (createConfigFunc, params) => [
   createConfigFunc({ ...params, latestBuild: false }),
 ];
 
+/**
+ * @param {{
+ *   compiler: import("webpack").Compiler,
+ *   contentBase: string,
+ *   port: number,
+ *   listenHost?: string
+ * }}
+ */
 const runDevServer = ({
   compiler,
   contentBase,
@@ -33,7 +41,10 @@ const runDevServer = ({
       throw err;
     }
     // Server listening
-    log("[webpack-dev-server]", `http://localhost:${port}`);
+    log(
+      "[webpack-dev-server]",
+      `Project is running at http://localhost:${port}`
+    );
   });
 
 const handler = (done) => (err, stats) => {
@@ -45,12 +56,12 @@ const handler = (done) => (err, stats) => {
     return;
   }
 
-  log(`Build done @ ${new Date().toLocaleTimeString()}`);
-
   if (stats.hasErrors() || stats.hasWarnings()) {
-    log.warn(stats.toString("minimal"));
+    console.log(stats.toString("minimal"));
   }
 
+  log(`Build done @ ${new Date().toLocaleTimeString()}`);
+
   if (done) {
     done();
   }

build-scripts/paths.js

@@ -1,4 +1,4 @@
-var path = require("path");
+const path = require("path");
 
 module.exports = {
   polymer_dir: path.resolve(__dirname, ".."),

build-scripts/webpack.js

@@ -4,6 +4,21 @@ const TerserPlugin = require("terser-webpack-plugin");
 const ManifestPlugin = require("webpack-manifest-plugin");
 const paths = require("./paths.js");
 const bundle = require("./bundle");
+const log = require("fancy-log");
+
+class LogStartCompilePlugin {
+  ignoredFirst = false;
+
+  apply(compiler) {
+    compiler.hooks.beforeCompile.tap("LogStartCompilePlugin", () => {
+      if (!this.ignoredFirst) {
+        this.ignoredFirst = true;
+        return;
+      }
+      log("Changes detected. Starting compilation");
+    });
+  }
+}
 
 const createWebpackConfig = ({
   entry,
@@ -104,7 +119,8 @@ const createWebpackConfig = ({
         ),
         path.resolve(paths.polymer_dir, "src/resources/EventTarget-ponyfill.js")
       ),
-    ],
+      !isProdBuild && new LogStartCompilePlugin(),
+    ].filter(Boolean),
     resolve: {
       extensions: [".ts", ".js", ".json"],
     },