Function removeCurrentUserFromGroup

pkgcache/cache_setup.go:564–596

(groupName string)

}

func removeCurrentUserFromGroup(groupName string) error {
	currentUser, err := currentUserForGroup()
	if err != nil {
		return err
	}

	groupExists := true
	if _, err := lookupGroup(groupName); err != nil {
		var unknownGroupError user.UnknownGroupError
		if !errors.As(err, &unknownGroupError) {
			return fmt.Errorf("failed to lookup %s group -> %w", groupName, err)
		}
		groupExists = false
	}
	if !groupExists {
		return nil
	}

	groups, err := cmd.NewExecutor("", "id", "-nG", currentUser).ExecuteOutput()
	if err != nil {
		return fmt.Errorf("failed to get groups for %q -> %w", currentUser, err)
	}
	userInGroup := slices.Contains(strings.Fields(groups), groupName)
	if !userInGroup {
		return nil
	}

	if output, err := cmd.NewExecutor("", "gpasswd", "-d", currentUser, groupName).ExecuteOutput(); err != nil {
		return fmt.Errorf("failed to remove %q from %q group -> %s -> %w", currentUser, groupName, output, err)
	}
	color.PrintHint("✔ remove %s from group %s", currentUser, groupName)
	return nil
}

func currentUserForGroup() (string, error) {
	candidate := os.Getenv("SUDO_USER")