Add AUR Helper option in Applications menu

Adds yay and paru as installable AUR helpers via the Applications menu

archinstall/applications/AUR_helper.py

@@ -0,0 +1,100 @@
+from typing import TYPE_CHECKING
+
+from archinstall.lib.models.application import AURHelper, AURHelperConfiguration
+from archinstall.lib.models.users import User
+from archinstall.lib.output import debug
+
+if TYPE_CHECKING:
+	from archinstall.lib.installer import Installer
+
+
+class AURHelperApp:
+	@property
+	def yay_packages(self) -> list[str]:
+		return [
+			'base-devel',
+			'git',
+			'go',  # required to build yay
+		]
+
+	@property
+	def paru_packages(self) -> list[str]:
+		return [
+			'base-devel',
+			'git',
+			'rust',  # required to build paru
+		]
+
+	def _write_firstboot_service(
+		self,
+		install_session: Installer,
+		helper: str,
+		user: User,
+	) -> None:
+		"""
+		Writes a systemd oneshot service that builds and installs the AUR helper
+		on first boot as the real user, then removes itself.
+		makepkg cannot run as root and needs a real user session to work
+		correctly, so we defer it to first boot instead of running it during
+		the archinstall chroot environment.
+
+		The service runs as root so it can write/remove the temporary sudoers
+		rule, and explicitly su's to the user only for the makepkg step.
+		"""
+		repo_url = f'https://aur.archlinux.org/{helper}.git'
+		build_dir = f'/home/{user.username}/{helper}-build'
+		service_name = f'aur-install-{helper}'
+		sudoers_rule = f'/etc/sudoers.d/99-aur-{helper}-tmp'
+
+		service_content = f"""\
+[Unit]
+Description=Install {helper} AUR helper (first boot)
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=oneshot
+# Run as root so we can write/remove the sudoers rule
+ExecStartPre=/bin/bash -c 'echo "{user.username} ALL=(ALL) NOPASSWD: /usr/bin/pacman" > {sudoers_rule} && chmod 440 {sudoers_rule}'
+# makepkg is invoked via su to the actual user.
+ExecStart=/bin/su - {user.username} -c 'git clone {repo_url} {build_dir} && cd {build_dir} && makepkg -si --noconfirm && rm -rf {build_dir}'
+ExecStartPost=/bin/rm -f {sudoers_rule}
+ExecStartPost=/bin/rm -f /etc/systemd/system/{service_name}.service
+ExecStartPost=/bin/systemctl daemon-reload
+RemainAfterExit=yes
+
+[Install]
+WantedBy=multi-user.target
+"""
+		service_path = install_session.target / 'etc' / 'systemd' / 'system' / f'{service_name}.service'
+		service_path.write_text(service_content)
+
+		install_session.enable_service([f'{service_name}.service'])
+
+		debug(f'First-boot service written for {helper}, will install as {user.username}')
+
+	def install(
+		self,
+		install_session: Installer,
+		AUR_config: AURHelperConfiguration,
+		users: list[User] | None = None,
+	) -> None:
+		debug(f'Installing AUR helper: {AUR_config.AUR_helper.value}')
+
+		if AUR_config.AUR_helper == AURHelper.NO_AUR_HELPER:
+			debug('No AUR helper selected, skipping installation.')
+			return
+
+		if not users:
+			debug('No users provided, skipping AUR helper installation.')
+			return
+
+		user = users[0]
+
+		match AUR_config.AUR_helper:
+			case AURHelper.YAY:
+				install_session.add_additional_packages(self.yay_packages)
+				self._write_firstboot_service(install_session, 'yay', user)
+			case AURHelper.PARU:
+				install_session.add_additional_packages(self.paru_packages)
+				self._write_firstboot_service(install_session, 'paru', user)

archinstall/lib/applications/application_handler.py

@@ -6,7 +6,9 @@ from archinstall.applications.firewall import FirewallApp
 from archinstall.applications.fonts import FontsApp
 from archinstall.applications.power_management import PowerManagementApp
 from archinstall.applications.print_service import PrintServiceApp
+from archinstall.applications.AUR_helper import AURHelperApp
 from archinstall.lib.models import Audio
+from archinstall.lib.models.application import AURHelper
 from archinstall.lib.models.application import ApplicationConfiguration
 from archinstall.lib.models.users import User
 
@@ -38,6 +40,13 @@ class ApplicationHandler:
 		if app_config.print_service_config and app_config.print_service_config.enabled:
 			PrintServiceApp().install(install_session)
 
+		if app_config.AUR_helper_config and app_config.AUR_helper_config.AUR_helper != AURHelper.NO_AUR_HELPER:
+			AURHelperApp().install(
+				install_session,
+				app_config.AUR_helper_config,
+				users,
+			)		
+
 		if app_config.firewall_config:
 			FirewallApp().install(
 				install_session,

archinstall/lib/applications/application_menu.py

@@ -7,6 +7,8 @@ from archinstall.lib.models.application import (
 	ApplicationConfiguration,
 	Audio,
 	AudioConfiguration,
+	AURHelper,
+	AURHelperConfiguration,
 	BluetoothConfiguration,
 	Firewall,
 	FirewallConfiguration,
@@ -66,6 +68,12 @@ class ApplicationMenu(AbstractSubMenu[ApplicationConfiguration]):
 				preview_action=self._prev_print_service,
 				key='print_service_config',
 			),
+			MenuItem(
+				text=tr('AUR helper'),
+				action=select_AUR_helper,
+				preview_action=self._prev_AUR_helper,
+				key='AUR_helper_config',
+			),
 			MenuItem(
 				text=tr('Power management'),
 				action=select_power_management,
@@ -118,6 +126,12 @@ class ApplicationMenu(AbstractSubMenu[ApplicationConfiguration]):
 			return output
 		return None
 
+	def _prev_AUR_helper(self, item: MenuItem) -> str | None:
+		if item.value is not None:
+			config: AURHelperConfiguration = item.value
+			return f'{tr("AUR helper")}: {config.AUR_helper.value}'
+		return None
+
 	def _prev_firewall(self, item: MenuItem) -> str | None:
 		if item.value is not None:
 			config: FirewallConfiguration = item.value
@@ -214,6 +228,28 @@ async def select_audio(preset: AudioConfiguration | None = None) -> AudioConfigu
 			raise ValueError('Unhandled result type')
 
 
+async def select_AUR_helper(preset: AURHelperConfiguration | None = None) -> AURHelperConfiguration | None:
+	items = [MenuItem(a.value, value=a) for a in AURHelper]
+	group = MenuItemGroup(items)
+
+	if preset:
+		group.set_focus_by_value(preset.AUR_helper)
+
+	result = await Selection[AURHelper](
+		group,
+		header=tr('Select an AUR helper'),
+		allow_skip=True,
+	).show()
+
+	match result.type_:
+		case ResultType.Skip:
+			return preset
+		case ResultType.Selection:
+			return AURHelperConfiguration(AUR_helper=result.get_value())
+		case ResultType.Reset:
+			raise ValueError('Unhandled result type')
+
+
 async def select_firewall(preset: FirewallConfiguration | None = None) -> FirewallConfiguration | None:
 	group = MenuItemGroup.from_enum(Firewall)
 

archinstall/lib/global_menu.py

@@ -352,6 +352,11 @@ class GlobalMenu(AbstractMenu[None]):
 				output += f'{tr("Print service")}: '
 				output += tr('Enabled') if app_config.print_service_config.enabled else tr('Disabled')
 				output += '\n'
+			
+			if app_config.AUR_helper_config:
+				AUR_helper_config = app_config.AUR_helper_config
+				output += f'{tr("AUR helper")}: {AUR_helper_config.AUR_helper.value}'
+				output += '\n'
 
 			if app_config.power_management_config:
 				power_management_config = app_config.power_management_config

archinstall/lib/models/application.py

@@ -31,6 +31,13 @@ class AudioConfigSerialization(TypedDict):
 class PrintServiceConfigSerialization(TypedDict):
 	enabled: bool
 
+class AURHelper(StrEnum):
+	NO_AUR_HELPER = 'No AUR helper'
+	YAY = auto()
+	PARU = auto()
+
+class AURHelperConfigSerialization(TypedDict):
+	AUR_helper: str
 
 class Firewall(StrEnum):
 	UFW = auto()
@@ -79,6 +86,7 @@ class ApplicationSerialization(TypedDict):
 	audio_config: NotRequired[AudioConfigSerialization]
 	power_management_config: NotRequired[PowerManagementConfigSerialization]
 	print_service_config: NotRequired[PrintServiceConfigSerialization]
+	AUR_helper_config: NotRequired[AURHelperConfigSerialization]
 	firewall_config: NotRequired[FirewallConfigSerialization]
 	fonts_config: NotRequired[FontsConfigSerialization]
 
@@ -139,6 +147,22 @@ class PrintServiceConfiguration:
 		return cls(arg['enabled'])
 
 
+@dataclass
+class AURHelperConfiguration:
+	AUR_helper: AURHelper
+
+	def json(self) -> AURHelperConfigSerialization:
+		return {
+			'AUR_helper': self.AUR_helper.value,
+		}
+
+	@classmethod
+	def parse_arg(cls, arg: dict[str, Any]) -> Self:
+		return cls(
+			AURHelper(arg['AUR_helper']),
+		)
+
+
 @dataclass
 class FirewallConfiguration:
 	firewall: Firewall
@@ -188,6 +212,7 @@ class ApplicationConfiguration:
 	audio_config: AudioConfiguration | None = None
 	power_management_config: PowerManagementConfiguration | None = None
 	print_service_config: PrintServiceConfiguration | None = None
+	AUR_helper_config: AURHelperConfiguration | None = None
 	firewall_config: FirewallConfiguration | None = None
 	fonts_config: FontsConfiguration | None = None
 
@@ -215,6 +240,9 @@ class ApplicationConfiguration:
 		if args and (print_service_config := args.get('print_service_config')) is not None:
 			app_config.print_service_config = PrintServiceConfiguration.parse_arg(print_service_config)
 
+		if args and (AUR_helper_config := args.get('AUR_helper_config')) is not None:
+			app_config.AUR_helper_config = AURHelperConfiguration.parse_arg(AUR_helper_config)
+
 		if args and (firewall_config := args.get('firewall_config')) is not None:
 			app_config.firewall_config = FirewallConfiguration.parse_arg(firewall_config)
 
@@ -238,10 +266,13 @@ class ApplicationConfiguration:
 		if self.print_service_config:
 			config['print_service_config'] = self.print_service_config.json()
 
+		if self.AUR_helper_config:
+			config['AUR_helper_config'] = self.AUR_helper_config.json()
+
 		if self.firewall_config:
 			config['firewall_config'] = self.firewall_config.json()
 
 		if self.fonts_config:
 			config['fonts_config'] = self.fonts_config.json()
 
-		return config
+		return config

archinstall/scripts/guided.py

@@ -131,7 +131,7 @@ def perform_installation(
 				auth_handler.setup_auth(installation, config.auth_config, config.hostname)
 
 		if app_config := config.app_config:
-			application_handler.install_applications(installation, app_config)
+			application_handler.install_applications(installation, app_config, users)
 
 		if profile_config := config.profile_config:
 			profile_handler.install_profile_config(installation, profile_config)