ssr runner and more admin panel stuff

utils.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/exec"
+	"os/signal"
+	"syscall"
+
+	"github.com/labstack/echo/v4"
+)
+
+func spawnProcess(cmd string, args []string, e *echo.Echo) error {
+	shutdown := make(chan os.Signal, 1)
+	signal.Notify(shutdown, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
+	go func() {
+		cmd := exec.Command(cmd, args...)
+		cmd.Stderr = os.Stderr
+
+		// use a preocess group since otherwise the node processes spawned by bun wont die
+		cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+
+		err := cmd.Start()
+		if err != nil {
+			if err := syscall.Kill(-cmd.Process.Pid, syscall.SIGTERM); err != nil {
+				fmt.Println("Error sending SIGTERM to sub process group:", err)
+			}
+
+			fmt.Println("Error starting sub process:", err)
+			return
+		}
+
+		go func() {
+			<-shutdown
+
+			if err := syscall.Kill(-cmd.Process.Pid, syscall.SIGTERM); err != nil {
+				fmt.Println("Error sending SIGTERM to sub process group:", err)
+			}
+		}()
+
+		if err := cmd.Wait(); err != nil {
+			fmt.Println("Error waiting for sub process to exit:", err)
+		}
+
+		fmt.Println("sub process server stopped")
+
+		if err := e.Shutdown(context.Background()); err != nil {
+			fmt.Println("Error shutting down HTTP server:", err)
+		}
+	}()
+
+	return nil
+}