repo_comps needs to have support for <environment>

Today I was looking to write some scripts which manipulates groups, but turned out that <environment> groups are not supported.

From what I could find is that people were not able to come up with better idea how to handle group of groups so they created this kind of groups.

  <environment>
    <id>basic-desktop-environment</id>
    <name>Basic Desktop</name>
    <name xml:lang="bg">Основен работен плот</name>
    <name xml:lang="ca">Escriptori bàsic</name>
    <name xml:lang="cs">Základní desktop</name>
    <name xml:lang="de">Grundsystem</name>
    <name xml:lang="en_GB">Basic Desktop</name>
    <name xml:lang="es">Escritorio Básico</name>
    <name xml:lang="fi">Tavallinen työpöytä</name>
    <name xml:lang="fr">Environnement de bureau standard</name>
    <name xml:lang="he">שולחן עבודה בסיסי</name>
    <name xml:lang="hu">Alapvető asztali környezet</name>
    <name xml:lang="ia">Scriptorio basic</name>
    <name xml:lang="id">Desktop Dasar</name>
    <name xml:lang="it">Desktop base</name>
    <name xml:lang="ja">基本的なデスクトップ環境</name>
    <name xml:lang="nb">Enkelt skrivebord</name>
    <name xml:lang="nl">Basisbureaublad</name>
    <name xml:lang="pa">ਮੁੱਢਲਾ ਡੈਸਕਟਾਪ</name>
    <name xml:lang="pl">Podstawowe środowisko</name>
    <name xml:lang="pt">Àrea de Trabalho Basic</name>
    <name xml:lang="pt_BR">Ambiente Básico</name>
    <name xml:lang="ru">Базовая среда рабочего стола</name>
    <name xml:lang="sk">Základné pracovné prostredie</name>
    <name xml:lang="sq">Desktop Bazik</name>
    <name xml:lang="sr">Основно окружење</name>
    <name xml:lang="sv">Grundläggande skrivbord</name>
    <name xml:lang="uk">Базове робоче середовище</name>
    <name xml:lang="zh_CN">基本桌面环境</name>
    <name xml:lang="zh_TW">基本桌面</name>
    <description>X Window System with a choice of window manager.</description>
    <description xml:lang="bg">X Window система с избор на мениджър на прозорци.</description>
    <description xml:lang="ca">X Window System amb la selecció del gestor de finestres.</description>
    <description xml:lang="cs">Systém X Window s výběrem správce oken.</description>
    <description xml:lang="de">X-Fenstersystem mit einer Auswahl an Fensterverwaltungen</description>
    <description xml:lang="en_GB">X Window System with a choice of window manager.</description>
    <description xml:lang="es">Sistema X Window con una elección de gestor de ventana.</description>
    <description xml:lang="fi">X-ikkunointijärjestelmä ja ikkunanhallintaohjelman valinta.</description>
    <description xml:lang="fr">Système de fenêtre X avec un choix de gestionnaire de fenêtres.</description>
    <description xml:lang="hu">X Window rendszer választott ablakkezelő felülettel.</description>
    <description xml:lang="ia">Le systema X Window con alternativas de gerentes de fenestras.</description>
    <description xml:lang="it">Sistema X Window con scelta di gestori finestre</description>
    <description xml:lang="ja">X Window System と任意のウィンドウマネージャー</description>
    <description xml:lang="nl">X Window Systeem met een keuze uit een aantal vensterbeheerders. </description>
    <description xml:lang="pl">System X Window z wyborem menedżerów okien.</description>
    <description xml:lang="pt">Sistema de janelas X com a escolha de gestor de janelas.</description>
    <description xml:lang="pt_BR">Sistema X Window com a escolha de um gerenciador de janelas.</description>
    <description xml:lang="ru">Система X Window с выбором оконного менеджера.</description>
    <description xml:lang="sk">Pracovné prostredie X Window System s výberom správcu okien.</description>
    <description xml:lang="sr">X Window систем за избором управника прозора.</description>
    <description xml:lang="sv">Fönstersystemet X med ett urval av fönsterhanterare.</description>
    <description xml:lang="uk">Система X Window з вибором засобу керування вікнами.</description>
    <description xml:lang="zh_CN">X 窗口系统的窗口管理器的选择。</description>
    <description xml:lang="zh_TW">X Window 系統，加上一個視窗管理員選項。</description>
    <display_order>70</display_order>
    <grouplist>
      <groupid>base-x</groupid>
      <groupid>basic-desktop</groupid>
      <groupid>core</groupid>
      <groupid>dial-up</groupid>
      <groupid>fonts</groupid>
      <groupid>guest-desktop-agents</groupid>
      <groupid>hardware-support</groupid>
      <groupid>multimedia</groupid>
      <groupid>networkmanager-submodules</groupid>
      <groupid>standard</groupid>
    </grouplist>
    <optionlist>
      <groupid>cinnamon-desktop</groupid>
      <groupid>firefox</groupid>
      <groupid>gnome-desktop</groupid>
      <groupid>input-methods</groupid>
      <groupid>kde-desktop</groupid>
      <groupid>legacy-fonts</groupid>
      <groupid>libreoffice</groupid>
      <groupid>lxde-desktop</groupid>
      <groupid>lxqt-desktop</groupid>
      <groupid>mate-desktop</groupid>
      <groupid>sugar-desktop</groupid>
      <groupid>xfce-desktop</groupid>
      <groupid>xmonad</groupid>
      <groupid>xmonad-mate</groupid>
    </optionlist>
  </environment>

Here is some example from Fedora's comps.xml.

From what I understand, <grouplist> is mandatory dependency on other groups and <optionlist> is some kind of Suggests.

Since I can't use REL_KIND in dependencies, I am not sure how to handle these.

Start by tracing how repo_comps currently parses and represents groups, then compare that path with the shown , , and structure. Determine how mandatory and optional group references should map to existing dependency handling, including the REL_KIND limitation; done means environment groups are supported without changing the intended dependency semantics.