system updater: make all distros use terminal

core/cmd/dms/commands_system.go

@@ -6,6 +6,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"os"
+	"os/exec"
 	"strings"
 	"time"
 
@@ -183,10 +184,20 @@ func runSystemUpdateApply() {
 		DryRun:         sysUpdateDry,
 	}
 
-	onLine := func(line string) { fmt.Println(line) }
 	for _, b := range backends {
-		fmt.Printf("\n== %s ==\n", b.DisplayName())
-		if err := b.Upgrade(ctx, opts, onLine); err != nil {
+		cmd, err := b.UpgradeCommand(opts)
+		if err != nil {
+			log.Fatalf("%s: %v", b.ID(), err)
+		}
+		if cmd == "" {
+			continue
+		}
+		fmt.Printf("\n== %s ==\n$ %s\n\n", b.DisplayName(), cmd)
+		shell := exec.CommandContext(ctx, "sh", "-c", cmd)
+		shell.Stdin = os.Stdin
+		shell.Stdout = os.Stdout
+		shell.Stderr = os.Stderr
+		if err := shell.Run(); err != nil {
 			log.Fatalf("%s upgrade failed: %v", b.ID(), err)
 		}
 	}