Merge branch 'CreativeTechGuy-bs-auto-sync' into next

package.json

@@ -92,6 +92,7 @@
     "lint-staged": "^12.1.5",
     "lunr": "^2.3.9",
     "npm-check-updates": "^12.1.0",
+    "open": "^8.4.0",
     "pascal-case": "^3.1.2",
     "plop": "^3.0.5",
     "prettier": "^2.5.1",

scripts/build.js

@@ -8,8 +8,7 @@ import esbuild from 'esbuild';
 import getPort, { portNumbers } from 'get-port';
 import { globby } from 'globby';
 import { execSync } from 'child_process';
-
-const bs = browserSync.create();
+import open from 'open';
 
 const { bundle, copydir, dir, serve, types } = commandLineArgs([
   { name: 'bundle', type: Boolean },
@@ -92,17 +91,16 @@ fs.mkdirSync(outdir, { recursive: true });
 
   // Dev server
   if (serve) {
+    const bs = browserSync.create();
     const port = await getPort({
       port: portNumbers(4000, 4999)
     });
 
     // Make sure docs/dist is empty since we're serving it virtually
     del.sync('docs/dist');
 
-    console.log(chalk.cyan(`Launching the Shoelace dev server at http://localhost:${port}! 🥾\n`));
-
-    // Launch browser sync
-    bs.init({
+    const browserSyncConfig = {
+      open: false,
       startPath: '/',
       port,
       logLevel: 'silent',
@@ -116,7 +114,36 @@ fs.mkdirSync(outdir, { recursive: true });
         routes: {
           '/dist': './dist'
         }
+      },
+      socket: {
+        socketIoClientConfig: {
+          // Configure socketIO to retry forever when disconnected to enable the auto-reattach timeout below to work
+          reconnectionAttempts: Infinity,
+          reconnectionDelay: 500,
+          reconnectionDelayMax: 500,
+          timeout: 1000
+        }
       }
+    };
+
+    // Launch browser sync
+    bs.init(browserSyncConfig, () => {
+      // This init callback gets executed after the server has started
+      const socketIoConfig = browserSyncConfig.socket.socketIoClientConfig;
+
+      // Wait enough time for any open, detached clients to have a chance to reconnect. This will be used to determine
+      // if we reload an existing tab or open a new one.
+      const tabReattachDelay = socketIoConfig.reconnectionDelayMax * 2 + socketIoConfig.timeout;
+
+      setTimeout(() => {
+        const url = `http://localhost:${port}`;
+        console.log(chalk.cyan(`Launched the Shoelace dev server at ${url} 🥾\n`));
+        if (Object.keys(bs.sockets.sockets).length === 0) {
+          open(url);
+        } else {
+          bs.reload();
+        }
+      }, tabReattachDelay);
     });
 
     // Rebuild and reload when source files change