[client, management] auto-update (#4732)

client/cmd/update_supported.go

@@ -0,0 +1,75 @@
+//go:build windows || darwin
+
+package cmd
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"strings"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+
+	"github.com/netbirdio/netbird/client/internal/updatemanager/installer"
+	"github.com/netbirdio/netbird/util"
+)
+
+var (
+	updateCmd = &cobra.Command{
+		Use:   "update",
+		Short: "Update the NetBird client application",
+		RunE:  updateFunc,
+	}
+
+	tempDirFlag    string
+	installerFile  string
+	serviceDirFlag string
+	dryRunFlag     bool
+)
+
+func init() {
+	updateCmd.Flags().StringVar(&tempDirFlag, "temp-dir", "", "temporary dir")
+	updateCmd.Flags().StringVar(&installerFile, "installer-file", "", "installer file")
+	updateCmd.Flags().StringVar(&serviceDirFlag, "service-dir", "", "service directory")
+	updateCmd.Flags().BoolVar(&dryRunFlag, "dry-run", false, "dry run the update process without making any changes")
+}
+
+// isUpdateBinary checks if the current executable is named "update" or "update.exe"
+func isUpdateBinary() bool {
+	// Remove extension for cross-platform compatibility
+	execPath, err := os.Executable()
+	if err != nil {
+		return false
+	}
+	baseName := filepath.Base(execPath)
+	name := strings.TrimSuffix(baseName, filepath.Ext(baseName))
+
+	return name == installer.UpdaterBinaryNameWithoutExtension()
+}
+
+func updateFunc(cmd *cobra.Command, args []string) error {
+	if err := setupLogToFile(tempDirFlag); err != nil {
+		return err
+	}
+
+	log.Infof("updater started: %s", serviceDirFlag)
+	updater := installer.NewWithDir(tempDirFlag)
+	if err := updater.Setup(context.Background(), dryRunFlag, installerFile, serviceDirFlag); err != nil {
+		log.Errorf("failed to update application: %v", err)
+		return err
+	}
+	return nil
+}
+
+func setupLogToFile(dir string) error {
+	logFile := filepath.Join(dir, installer.LogFile)
+
+	if _, err := os.Stat(logFile); err == nil {
+		if err := os.Remove(logFile); err != nil {
+			log.Errorf("failed to remove existing log file: %v\n", err)
+		}
+	}
+
+	return util.InitLog(logLevel, util.LogConsole, logFile)
+}