feat(deck): Autologin to Plasma

Currently the user will boot to SDDM upon initial install. This is
not entirely optimal as the default session in SDDM is gamescope
session which is not usable without first updating Steam. This
addresses that by using the same logic we use for gamescope autologin
to login to Plasma on first boot

This commit also simplifies the logic in gamescope-autologin

Containerfile

@@ -160,6 +160,7 @@ RUN sed -i 's@enabled=1@enabled=0@g' /etc/yum.repos.d/_copr_kylegospo-bazzite.re
     sed -i 's@enabled=1@enabled=0@g' /etc/yum.repos.d/_copr_kylegospo-hl2linux-selinux.repo && \
     sed -i 's@enabled=1@enabled=0@g' /etc/yum.repos.d/_copr_kylegospo-obs-vkcapture.repo && \
     sed -i 's@enabled=1@enabled=0@g' /etc/yum.repos.d/_copr_kylegospo-wallpaper-engine-kde-plugin.repo && \
+    systemctl enable plasma-autologin.service && \
     systemctl enable jupiter-fan-control.service && \
     systemctl enable set-cfs-tweaks.service && \
     systemctl disable input-remapper.service && \

system_files/deck/usr/bin/gamescope-autologin

@@ -1,19 +1,18 @@
-#!/bin/bash
+#!/usr/bin/env bash
+
 NUM_USERS=$(ls /home | wc -l)
+USER=$(ls /home)
+
+# SteamOS SDDM config
+SDDM_CONF='/etc/sddm.conf.d/steamos.conf'
 
-# If we have multiple users, don't configure SDDM
+# Configure autologin
+sed -i 's/.*Session=.*/Session=gamescope-session.desktop/g' ${SDDM_CONF}
 if [ ${NUM_USERS} -eq 1 ]; then
-  # Don't configure SDDM if we already have
-  SDDM_CONF=$(cat /etc/sddm.conf.d/steamos.conf)
-  if grep '#User=' <<< ${SDDM_CONF}; then
-    # Retrieve username
-    USER=$(ls /home)
-    # Configure autologin
-    sed -i 's/#User=/User='${USER}'/g' /etc/sddm.conf.d/steamos.conf
-    touch /etc/sddm.conf.d/zz-steamos-autologin.conf
-    # Remove sddm.conf if it exists
-    if [ -f '/etc/sddm.conf' ]; then
-      rm -f /etc/sddm.conf
-    fi
-  fi
+  sed -i 's/.*User=.*/User='${USER}'/g' ${SDDM_CONF}
+fi
+
+# Remove sddm.conf if it exists
+if [ -f '/etc/sddm.conf' ]; then
+  rm -f /etc/sddm.conf
 fi

system_files/deck/usr/bin/plasma-autologin

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+NUM_USERS=$(ls /home | wc -l)
+USER=$(ls /home)
+
+# SteamOS SDDM config
+SDDM_CONF='/etc/sddm.conf.d/steamos.conf'
+
+# Configure autologin
+sed -i 's/.*Session=.*/Session=plasmax11.desktop/g' ${SDDM_CONF}
+if [ ${NUM_USERS} -eq 1 ]; then
+  sed -i 's/.*User=.*/User='${USER}'/g' ${SDDM_CONF}
+fi
+
+# Remove sddm.conf if it exists
+if [ -f '/etc/sddm.conf' ]; then
+  rm -f /etc/sddm.conf
+fi

system_files/deck/usr/lib/systemd/system/plasma-autologin.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=Enables autologin to Plasma (X11)
+Before=display-manager.service
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/plasma-autologin
+
+[Install]
+WantedBy=multi-user.target