DevMode: when build failure after initial start, dont fail just print the error and continue

cmd/dev.go

@@ -107,27 +107,36 @@ Examples:
 			errsystem.New(errsystem.ErrInvalidConfiguration, err, errsystem.WithContextMessage("Failed to run project")).ShowErrorAndExit()
 		}
 
-		build := func() {
+		build := func(initial bool) {
 			started := time.Now()
+			var ok bool
 			tui.ShowSpinner("Building project ...", func() {
 				if err := bundler.Bundle(bundler.BundleContext{
 					Context:    ctx,
 					Logger:     log,
 					ProjectDir: dir,
 					Production: false,
+					DevMode:    !initial,
 				}); err != nil {
+					if err == bundler.ErrBuildFailed {
+						log.Error("build failed ...")
+						return
+					}
 					errsystem.New(errsystem.ErrInvalidConfiguration, err, errsystem.WithContextMessage(fmt.Sprintf("Failed to bundle project: %s", err))).ShowErrorAndExit()
 				}
+				ok = true
 			})
-			fmt.Println(tui.Text(fmt.Sprintf("✨ Built in %s", time.Since(started).Round(time.Millisecond))))
+			if ok {
+				fmt.Println(tui.Text(fmt.Sprintf("✨ Built in %s", time.Since(started).Round(time.Millisecond))))
+			}
 		}
 
 		// Initial build
-		build()
+		build(true)
 
 		// Watch for changes
 		watcher, err := dev.NewWatcher(log, dir, theproject.Project.Development.Watch.Files, func(path string) {
-			build()
+			build(false)
 			isDeliberateRestart = true
 			log.Debug("killing project server")
 			dev.KillProjectServer(projectServerCmd)

internal/bundler/bundler.go

@@ -22,6 +22,8 @@ import (
 
 var Version = "dev"
 
+var ErrBuildFailed = fmt.Errorf("build failed")
+
 type AgentConfig struct {
 	ID       string `json:"id"`
 	Name     string `json:"name"`
@@ -35,6 +37,7 @@ type BundleContext struct {
 	Production bool
 	Install    bool
 	CI         bool
+	DevMode    bool
 }
 
 func bundleJavascript(ctx BundleContext, dir string, outdir string, theproject *project.Project) error {
@@ -157,6 +160,10 @@ func bundleJavascript(ctx BundleContext, dir string, outdir string, theproject *
 			fmt.Println(formattedError)
 		}
 
+		if ctx.DevMode {
+			return ErrBuildFailed
+		}
+
 		os.Exit(2)
 		return nil // This line will never be reached due to os.Exit
 	}