Initialize AutoLibrary website with Gitea deployment

utils/server.go

@@ -0,0 +1,34 @@
+package utils
+
+import (
+	"context"
+	"errors"
+	"net/http"
+	"time"
+)
+
+// ServeHTTP drains requests before its caller closes databases and files.
+func ServeHTTP(ctx context.Context, address string, handler http.Handler) error {
+	server := &http.Server{Addr: address, Handler: handler, ReadHeaderTimeout: 10 * time.Second, IdleTimeout: 60 * time.Second}
+	finished := make(chan struct{})
+	defer close(finished)
+	shutdownDone := make(chan struct{})
+	go func() {
+		defer close(shutdownDone)
+		select {
+		case <-ctx.Done():
+			timeout, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+			defer cancel()
+			if err := server.Shutdown(timeout); err != nil {
+				_ = server.Close()
+			}
+		case <-finished:
+		}
+	}()
+	err := server.ListenAndServe()
+	if errors.Is(err, http.ErrServerClosed) {
+		<-shutdownDone
+		return nil
+	}
+	return err
+}