small enhancements

Author: ezzughayyar

acme.go

@@ -1 +1,4 @@
 package httpserver
+
+//go:generate echo hello acme
+func T() {}

example/main.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"log/slog"
 	"net/http"
-	"os"
 	"strconv"
 	"time"
 
@@ -18,7 +17,7 @@ const (
 var handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 
 	select {
-	case <-time.Tick(3 * time.Second):
+	case <-time.Tick(1 * time.Second):
 		w.Write([]byte("Hello, World"))
 	case <-r.Context().Done():
 		w.Write([]byte("server stopped"))
@@ -31,7 +30,7 @@ func nextRequestID() string {
 }
 
 func main() {
-	slog.SetDefault(slog.New(slog.NewJSONHandler(os.Stdout, nil)))
+	slog.SetDefault(httpserver.DefaultLoggerDevelopment)
 
 	mw := logging(slog.Default())(handler)
 	mw = tracing(nextRequestID)(mw)

httpserver.go

@@ -9,6 +9,7 @@ import (
 	"net"
 	"net/http"
 	"os"
+	"os/exec"
 	"os/signal"
 	"path"
 	"path/filepath"
@@ -155,7 +156,26 @@ func (s *Server) startGracefulShutdown() error {
 }
 
 func (s *Server) handleFileChange(event notify.EventInfo) {
-	s.log.Info("file changed", "event", event.Event(), "path", event.Path())
+	isGoFile := strings.HasSuffix(event.Path(), ".go")
+	if !isGoFile {
+		return
+	}
+
+	moduleRoot := modulePath()
+	pathToGenerate := strings.Replace(path.Dir(event.Path()), moduleRoot, ".", 1)
+	s.log.Info("file changed", "event", event.Event(), "path", pathToGenerate)
+	genCmd := exec.Command("go", "generate", pathToGenerate)
+	genCmd.Dir = moduleRoot
+	genCmd.Stdout = os.Stdout
+	genCmd.Stderr = os.Stderr
+
+	err := genCmd.Run()
+	if err != nil {
+		s.log.Error("go generate failed", "error", err)
+		return
+	}
+
+	os.Getwd()
 }
 
 func watchForFileChanges(logger *slog.Logger) (c chan notify.EventInfo) {

options.go

@@ -10,6 +10,16 @@ import (
 
 const defaultShutdownTimeout = 10 * time.Second
 
+var (
+	DefaultLoggerProduction = slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
+		Level: slog.LevelInfo,
+	}))
+	DefaultLoggerDevelopment = slog.New(tint.NewHandler(os.Stdout, &tint.Options{
+		Level:      slog.LevelDebug,
+		TimeFormat: time.TimeOnly,
+	}))
+)
+
 type Option func(*Server)
 
 func setDefaultLogger(server *Server) {
@@ -18,15 +28,9 @@ func setDefaultLogger(server *Server) {
 	switch server.mode {
 
 	case ModeProduction:
-		logger = slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
-			Level: slog.LevelInfo,
-		}))
-
+		logger = DefaultLoggerProduction
 	default:
-		logger = slog.New(tint.NewHandler(os.Stdout, &tint.Options{
-			Level:      slog.LevelDebug,
-			TimeFormat: time.TimeOnly,
-		}))
+		logger = DefaultLoggerDevelopment
 	}
 
 	WithLogger(logger.WithGroup("httpserver"))(server)