Add users to seat group when seatd is selected

When a desktop profile uses seatd for seat access, the user must be
in the seat group for the compositor to access input devices. Without
this, sway/hyprland/niri/labwc fail to start after installation.

archinstall/default_profiles/desktops/hyprland.py

@@ -1,8 +1,12 @@
-from typing import override
+from typing import TYPE_CHECKING, override
 
-from archinstall.default_profiles.desktops.utils import select_seat_access
+from archinstall.default_profiles.desktops.utils import provision_seat_access, select_seat_access
 from archinstall.default_profiles.profile import CustomSetting, DisplayServerType, GreeterType, Profile, ProfileType
 
+if TYPE_CHECKING:
+	from archinstall.lib.installer import Installer
+	from archinstall.lib.models.users import User
+
 
 class HyprlandProfile(Profile):
 	def __init__(self) -> None:
@@ -45,6 +49,10 @@ class HyprlandProfile(Profile):
 			return [pref]
 		return []
 
+	@override
+	def provision(self, install_session: Installer, users: list[User]) -> None:
+		provision_seat_access(install_session, users, self.custom_settings.get(CustomSetting.SeatAccess))
+
 	@override
 	async def do_on_select(self) -> None:
 		default = self.custom_settings.get(CustomSetting.SeatAccess, None)

archinstall/default_profiles/desktops/labwc.py

@@ -1,8 +1,12 @@
-from typing import override
+from typing import TYPE_CHECKING, override
 
-from archinstall.default_profiles.desktops.utils import select_seat_access
+from archinstall.default_profiles.desktops.utils import provision_seat_access, select_seat_access
 from archinstall.default_profiles.profile import CustomSetting, DisplayServerType, GreeterType, Profile, ProfileType
 
+if TYPE_CHECKING:
+	from archinstall.lib.installer import Installer
+	from archinstall.lib.models.users import User
+
 
 class LabwcProfile(Profile):
 	def __init__(self) -> None:
@@ -39,6 +43,10 @@ class LabwcProfile(Profile):
 			return [pref]
 		return []
 
+	@override
+	def provision(self, install_session: Installer, users: list[User]) -> None:
+		provision_seat_access(install_session, users, self.custom_settings.get(CustomSetting.SeatAccess))
+
 	@override
 	async def do_on_select(self) -> None:
 		default = self.custom_settings.get(CustomSetting.SeatAccess, None)

archinstall/default_profiles/desktops/niri.py

@@ -1,8 +1,12 @@
-from typing import override
+from typing import TYPE_CHECKING, override
 
-from archinstall.default_profiles.desktops.utils import select_seat_access
+from archinstall.default_profiles.desktops.utils import provision_seat_access, select_seat_access
 from archinstall.default_profiles.profile import CustomSetting, DisplayServerType, GreeterType, Profile, ProfileType
 
+if TYPE_CHECKING:
+	from archinstall.lib.installer import Installer
+	from archinstall.lib.models.users import User
+
 
 class NiriProfile(Profile):
 	def __init__(self) -> None:
@@ -47,6 +51,10 @@ class NiriProfile(Profile):
 			return [pref]
 		return []
 
+	@override
+	def provision(self, install_session: Installer, users: list[User]) -> None:
+		provision_seat_access(install_session, users, self.custom_settings.get(CustomSetting.SeatAccess))
+
 	@override
 	async def do_on_select(self) -> None:
 		default = self.custom_settings.get(CustomSetting.SeatAccess, None)

archinstall/default_profiles/desktops/sway.py

@@ -1,8 +1,12 @@
-from typing import override
+from typing import TYPE_CHECKING, override
 
-from archinstall.default_profiles.desktops.utils import select_seat_access
+from archinstall.default_profiles.desktops.utils import provision_seat_access, select_seat_access
 from archinstall.default_profiles.profile import CustomSetting, DisplayServerType, GreeterType, Profile, ProfileType
 
+if TYPE_CHECKING:
+	from archinstall.lib.installer import Installer
+	from archinstall.lib.models.users import User
+
 
 class SwayProfile(Profile):
 	def __init__(self) -> None:
@@ -49,6 +53,10 @@ class SwayProfile(Profile):
 			return [pref]
 		return []
 
+	@override
+	def provision(self, install_session: Installer, users: list[User]) -> None:
+		provision_seat_access(install_session, users, self.custom_settings.get(CustomSetting.SeatAccess))
+
 	@override
 	async def do_on_select(self) -> None:
 		default = self.custom_settings.get(CustomSetting.SeatAccess, None)

archinstall/default_profiles/desktops/utils.py

@@ -1,16 +1,31 @@
 from enum import Enum
+from typing import TYPE_CHECKING
 
 from archinstall.lib.menu.helpers import Selection
 from archinstall.lib.translationhandler import tr
 from archinstall.tui.menu_item import MenuItem, MenuItemGroup
 from archinstall.tui.result import ResultType
 
+if TYPE_CHECKING:
+	from archinstall.lib.installer import Installer
+	from archinstall.lib.models.users import User
+
 
 class SeatAccess(Enum):
 	seatd = 'seatd'
 	polkit = 'polkit'
 
 
+def provision_seat_access(
+	install_session: Installer,
+	users: list[User],
+	seat_access: str | None,
+) -> None:
+	if seat_access == SeatAccess.seatd.value:
+		for user in users:
+			install_session.arch_chroot(f'usermod -a -G seat {user.username}')
+
+
 async def select_seat_access(profile_name: str, default: str | None) -> SeatAccess:
 	header = tr('{} needs access to your seat').format(profile_name)
 	header += f' ({tr("collection of hardware devices i.e. keyboard, mouse")})' + '\n'