🚀 feat(_shell): add executer

usr/bin/snigdhaos-kernel-switcher

@@ -0,0 +1,96 @@
+#!/usr/bin/env sh
+
+# this script should not be run as root
+# the polkit agent running on the desktop environment should prompt for root password
+
+echo "---------------------------------------------------------------------------"
+echo "[INFO]: Checking session"
+test $(whoami) == "root" && echo "[ERROR]: Do not run this script as root." && exit 1
+test -z $DISPLAY && echo "[ERROR]: DISPLAY variable is not set." && exit 1
+
+# check session is either one of X11, Wayland or TTY
+SESSION=$(loginctl show-session $(loginctl|grep $(whoami) | awk '{print $1}') -p Type | awk -F= '{print $2}' | grep "x11\|wayland\|tty")
+test -z "$SESSION" && echo "[ERROR]: Failed to verify session for user, SESSION = $SESSION" && exit 1
+
+XAUTHORITY=$(xauth info | awk -F"Authority file:" '{print $2}' | tr -d ' ')
+test -z "$XAUTHORITY" && echo "[ERROR]: XAUTHORIY file is not set" && exit 1
+test -s "$XAUTHORITY" || touch "$XAUTHORITY"
+
+XAUTH_HONORED=$(xauth info | awk -F"Changes honored:" '{print $2}' | tr -d ' ')
+test $XAUTH_HONORED = "yes" || echo "[ERROR]: Xauth changes honored = no, restart X server" || exit 1
+
+# GTK_A11Y=none - fixes the dbus-launch errors with GTK4
+
+echo "[INFO]: XAUTHORITY = $XAUTHORITY"
+echo "[INFO]: DBUS_SESSION_BUS_ADDRESS = $DBUS_SESSION_BUS_ADDRESS"
+echo "[INFO]: DESKTOP SESSION = $DESKTOP_SESSION"
+
+function start_in_wayland() {
+  echo "[INFO]: Starting in Wayland session"
+  xauth gen $DISPLAY &> /dev/null
+
+  case "$DESKTOP_SESSION" in
+    plasma | gnome)
+        pkexec env DISPLAY=$DISPLAY WAYLAND_DISPLAY="$XDG_RUNTIME_DIR/$WAYLAND_DISPLAY" XAUTHORITY=$XAUTHORITY DBUS_SESSION_BUS_ADDRESS=$DBUS_SESSION_BUS_ADDRESS GDK_BACKEND=x11 GTK_A11Y=none '/usr/share/archlinux-kernel-manager/archlinux-kernel-manager.py'
+    ;;
+    *)
+      pkexec env DISPLAY=$DISPLAY WAYLAND_DISPLAY="$XDG_RUNTIME_DIR/$WAYLAND_DISPLAY" XAUTHORITY=$XAUTHORITY DBUS_SESSION_BUS_ADDRESS=$DBUS_SESSION_BUS_ADDRESS GTK_A11Y=none '/usr/share/archlinux-kernel-manager/archlinux-kernel-manager.py'
+    ;;
+  esac
+}
+
+function start_in_x11() {
+  echo "[INFO]: Starting in X11 session"
+  pkexec env DISPLAY=$DISPLAY XAUTHORITY=$XAUTHORITY DBUS_SESSION_BUS_ADDRESS=$DBUS_SESSION_BUS_ADDRESS GTK_A11Y=none '/usr/share/archlinux-kernel-manager/archlinux-kernel-manager.py'
+}
+
+function start_in_tty() {
+  echo "[INFO]: Starting in TTY session"
+  pkexec '/usr/share/archlinux-kernel-manager/archlinux-kernel-manager.py'
+}
+
+case "$SESSION" in
+    "wayland")
+      # Wayland session, generate Xauth session cookie for $DISPLAY
+      echo "[INFO]: Display = $DISPLAY"
+      echo "[INFO]: Session = $SESSION"
+      start_in_wayland
+    ;;
+    "x11")
+      # X11 session, don't do anything here
+      echo "[INFO]: Display = $DISPLAY"
+      echo "[INFO]: Session = $SESSION"
+
+      # just show msg on whether the Xauth session cookie is setup
+      start_in_x11
+    ;;
+    "tty")
+      # TTY session, as user may not use a display manager
+      echo "[INFO]: Display = $DISPLAY"
+      echo "[INFO]: Session = $SESSION"
+
+      start_in_tty
+    ;;
+    *)
+      # anything here is an unknown session, fallback to XDG_SESSION_TYPE
+      echo "[INFO]: Display = $DISPLAY"
+      echo "[WARN]: Session could not be verified, using XDG_SESSION_TYPE"
+
+      case "$XDG_SESSION_TYPE" in
+        "wayland")
+          start_in_wayland
+        ;;
+        "tty")
+          start_in_tty
+        ;;
+        "x11")
+          start_in_x11
+        ;;
+        *)
+          echo "[ERROR]: $XDG_SESSION_TYPE is empty, cannot continue"
+          exit 1
+        ;;
+      esac
+    ;;
+  esac
+echo "---------------------------------------------------------------------------"