add some error logging

backend/networking/shutdown.go

@@ -1,6 +1,7 @@
 package networking
 
 import (
+	"bytes"
 	"fmt"
 	"os/exec"
 	"runtime"
@@ -28,9 +29,14 @@ func ShutdownDevice(device *models.Record) error {
 	}
 
 	cmd := exec.Command(shell, shell_arg, shutdown_cmd)
+	var stderr bytes.Buffer
+	cmd.Stderr = &stderr
 	if err := cmd.Run(); err != nil {
 		return err
 	}
+	if stderr.Len() > 0 {
+		return fmt.Errorf("%s", stderr.String())
+	}
 
 	// check state every second for 2 min
 	start := time.Now()

backend/pb/handlers.go

@@ -11,6 +11,7 @@ import (
 	"github.com/labstack/echo/v5"
 	"github.com/pocketbase/pocketbase/apis"
 	"github.com/pocketbase/pocketbase/models"
+	"github.com/seriousm4x/upsnap/logger"
 	"github.com/seriousm4x/upsnap/networking"
 )
 
@@ -23,6 +24,7 @@ func HandlerWake(c echo.Context) error {
 		record.Set("status", "pending")
 		App.Dao().SaveRecord(record)
 		if err := networking.WakeDevice(record); err != nil {
+			logger.Error.Println(err)
 			record.Set("status", "offline")
 		} else {
 			record.Set("status", "online")
@@ -41,6 +43,7 @@ func HandlerShutdown(c echo.Context) error {
 		record.Set("status", "pending")
 		App.Dao().SaveRecord(record)
 		if err := networking.ShutdownDevice(record); err != nil {
+			logger.Error.Println(err)
 			record.Set("status", "online")
 		} else {
 			record.Set("status", "offline")

backend/pb/pb.go

@@ -2,7 +2,6 @@ package pb
 
 import (
 	"io/fs"
-	"log"
 	"net/http"
 	"os"
 
@@ -112,7 +111,7 @@ func StartPocketBase(distDirFS fs.FS) {
 
 	// start pocketbase
 	if err := App.Start(); err != nil {
-		log.Fatal(err)
+		logger.Error.Fatalln(err)
 	}
 }