feat: add logout subcommand for jira

cmd/auth.go

@@ -6,6 +6,7 @@ import (
 	"os"
 
 	"github.com/fatih/color"
+	config "github.com/handofgod94/gh-jira-changelog/pkg/jira_changelog/jira/config_service"
 	"github.com/handofgod94/gh-jira-changelog/pkg/jira_changelog/jira/oauth"
 	"github.com/spf13/cobra"
 )
@@ -27,7 +28,12 @@ var authCmd = &cobra.Command{
 
 			fmt.Println(color.GreenString("Login successful"))
 		case "logout":
-			panic("To be implemented")
+			err := config.Clear()
+			if err != nil {
+				return err
+			}
+			fmt.Print(color.CyanString("Logged out successfully."))
+			return nil
 		default:
 			return fmt.Errorf("invalid argument %s", args[0])
 		}

pkg/jira_changelog/jira/config_service/config_service.go

@@ -7,6 +7,7 @@ import (
 	"path"
 
 	"github.com/mitchellh/go-homedir"
+	"golang.org/x/exp/slog"
 )
 
 func Save(v any, filepath string) error {
@@ -53,6 +54,22 @@ func Load(v any, filepath string) (err error) {
 	return nil
 }
 
+func Clear() error {
+	confdir, err := defaultConfDir()
+	if err != nil {
+		return err
+	}
+
+	slog.Info("clearing config dir", "Dir", confdir)
+
+	if err := os.RemoveAll(confdir); err != nil {
+		slog.Error("failed to delete conf dir", "error", err)
+		return err
+	}
+
+	return nil
+}
+
 func defaultConfDir() (res string, err error) {
 	filepath := path.Join("gh-jira-changelog")
 	res = os.Getenv("XDG_CONFIG_HOME")