added all niri files

modules/niri/niri/default.nix

@@ -53,26 +53,92 @@ rustPlatform.buildRustPackage {
     "-lEGL"
     "-lwayland-client"
     "-Wl,--pop-state"
+    "--release"
   ];
 
   postInstall =
   let
     niriSession = ''
+      #!/bin/sh
+
+      if [ -n "$SHELL" ] &&
+         grep -q "$SHELL" /etc/shells &&
+         ! (echo "$SHELL" | grep -q "false") &&
+         ! (echo "$SHELL" | grep -q "nologin"); then
+        if [ "$1" != '-l' ]; then
+          exec bash -c "exec -l '$SHELL' -c '$0 -l $*'"
+        else
+          shift
+        fi
+      fi
+
+      # Make sure there's no already running session.
+      if systemctl --user -q is-active niri.service; then
+        echo 'A niri session is already running.'
+        exit 1
+      fi
+
+      # Reset failed state of all user units.
+      systemctl --user reset-failed
+
+      # Set the current desktop for xdg-desktop-portal.
+      export XDG_CURRENT_DESKTOP=niri
+
+      # Ensure the session type is set to Wayland for xdg-autostart apps.
+      export XDG_SESSION_TYPE=wayland
+
+      # Import the login manager environment.
+      systemctl --user import-environment
+
+      # DBus activation environment is independent from systemd. While most of
+      # dbus-activated services are already using `SystemdService` directive, some
+      # still don't and thus we should set the dbus environment with a separate
+      # command.
+      if hash dbus-update-activation-environment 2>/dev/null; then
+          dbus-update-activation-environment --all
+      fi
+
+      # Start niri and wait for it to terminate.
+      systemctl --user --wait start niri.service
+
+      # Unset environment that we've set.
+      systemctl --user unset-environment WAYLAND_DISPLAY XDG_SESSION_TYPE XDG_CURRENT_DESKTOP
+    '';
+    niriDesktop = ''
       [Desktop Entry]
-      Name=niri
-      Comment=Scrolling wayland compositor
-      Exec=niri
+      Name=Niri
+      Comment=A scrollable-tiling Wayland compositor
+      Exec=niri-session
       Type=Application
+      DesktopNames=niri
       '';
     niriPortals = ''
       [preferred]
       default=gnome;gtk;
     '';
+    niriService = ''
+      [Unit]
+      Description=A scrollable-tiling Wayland compositor
+      BindsTo=graphical-session.target
+      Before=graphical-session.target
+      Wants=graphical-session-pre.target
+      After=graphical-session-pre.target
+
+      Wants=xdg-desktop-autostart.target
+      Before=xdg-desktop-autostart.target
+
+      [Service]
+      Type=notify
+      ExecStart=/usr/bin/niri
+    '';
   in ''
+      echo "${niriSession}" > $out/bin/niri-session
       mkdir -p $out/share/wayland-sessions
-      echo "${niriSession}" > $out/share/wayland-sessions/niri.desktop
+      echo "${niriDesktop}" > $out/share/wayland-sessions/niri.desktop
       mkdir -p $out/share/xdg-desktop-portal
       echo "${niriPortals}" > $out/share/wayland-sessions/niri-portals.conf
+      mkdir -p $out/lib/systemd/user
+      echo "${niriService}" > $out/lib/systemd/user/niri.service
     '';
 
   passthru.providedSessions = [ "niri" ];