fix(*nix): fix zombie process leak

app/app.go

@@ -1,6 +1,7 @@
 package app
 
 import (
+	"fmt"
 	"github.com/AnatolyRugalev/kube-commander/app/ui"
 	"github.com/AnatolyRugalev/kube-commander/app/ui/status"
 	"github.com/AnatolyRugalev/kube-commander/app/ui/workspace"
@@ -111,7 +112,7 @@ func (a *app) Run() error {
 	a.screen = ui.NewScreen(a)
 	err := a.initScreen()
 	if err != nil {
-		return err
+		return fmt.Errorf("could not initialize screen: %w", err)
 	}
 	a.workspace = workspace.NewWorkspace(a, a.defaultNamespace)
 	err = a.workspace.Init()

app/executor/cmd_nix.go

@@ -34,7 +34,6 @@ func (e *executor) renderCommand(command *commander.Command) string {
 // execute runs given command in emulated PTY environment
 // This is required for cross-platform execution
 func (e *executor) runCmd(cmd *exec.Cmd) error {
-	cmd.SysProcAttr.Setpgid = true
 	ptmx, err := pty.Start(cmd)
 	if err != nil {
 		return fmt.Errorf("could not start PTY terminal: %w", err)
@@ -74,5 +73,6 @@ func (e *executor) runCmd(cmd *exec.Cmd) error {
 	if err != nil {
 		return err
 	}
-	return nil
+	_, err = cmd.Process.Wait()
+	return err
 }

cmd/kube-commander/main.go

@@ -99,7 +99,7 @@ func run(_ *cobra.Command, _ []string) error {
 	conf := client.NewDefaultConfig(cfg.kubeconfig, cfg.context, cfg.namespace)
 	cl, err := client.NewClient(conf)
 	if err != nil {
-		return err
+		return fmt.Errorf("could not initialize kubernetes client: %w", err)
 	}
 	b := builder.NewBuilder(conf, cfg.kubectl, cfg.pager, cfg.editor, cfg.tail)
 	application := app.NewApp(conf, cl, cl, b, executor.NewOsExecutor(), conf.Namespace())