from __future__ import annotations import sys import logging from typing import Callable, Any, List, Iterator, Tuple, Optional from .menu import Menu from ..general import SysCommand, secret from ..hardware import has_uefi from ..storage import storage from ..output import log from ..profiles import is_desktop_profile from ..disk import encrypted_partitions from ..locale_helpers import set_keyboard_language from ..user_interaction import get_password, ask_for_a_timezone, save_config from ..user_interaction import ask_ntp from ..user_interaction import ask_for_swap from ..user_interaction import ask_for_bootloader from ..user_interaction import ask_hostname from ..user_interaction import ask_for_audio_selection from ..user_interaction import ask_additional_packages_to_install from ..user_interaction import ask_to_configure_network from ..user_interaction import ask_for_superuser_account from ..user_interaction import ask_for_additional_users from ..user_interaction import select_language from ..user_interaction import select_mirror_regions from ..user_interaction import select_locale_lang from ..user_interaction import select_locale_enc from ..user_interaction import select_disk_layout from ..user_interaction import select_kernel from ..user_interaction import select_encrypted_partitions from ..user_interaction import select_harddrives from ..user_interaction import select_profile from ..user_interaction import select_archinstall_language from ..user_interaction import select_additional_repositories from ..translation import Translation class Selector: def __init__( self, description :str, func :Callable = None, display_func :Callable = None, default :Any = None, enabled :bool = False, dependencies :List = [], dependencies_not :List = [], exec_func :Callable = None, preview_func :Callable = None, mandatory :bool = False, no_store :bool = False ): """ Create a new menu selection entry :param description: Text that will be displayed as the menu entry :type description: str :param func: Function that is called when the menu entry is selected :type func: Callable :param display_func: After specifying a setting for a menu item it is displayed on the right side of the item as is; with this function one can modify the entry to be displayed; e.g. when specifying a password one can display **** instead :type display_func: Callable :param default: Default value for this menu entry :type default: Any :param enabled: Specify if this menu entry should be displayed :type enabled: bool :param dependencies: Specify dependencies for this menu entry; if the dependencies are not set yet, then this item is not displayed; e.g. disk_layout depends on selectiong harddrive(s) first :type dependencies: list :param dependencies_not: These are the exclusive options; the menu item will only be displayed if non of the entries in the list have been specified :type dependencies_not: list :param exec_func: A function with the name and the result of the selection as input parameter and which returns boolean. Can be used for any action deemed necessary after selection. If it returns True, exits the menu loop, if False, menu returns to the selection screen. If not specified it is assumed the return is False :type exec_func: Callable :param preview_func: A callable which invokws a preview screen :type preview_func: Callable :param mandatory: A boolean which determines that the field is mandatory, i.e. menu can not be exited if it is not set :type mandatory: bool :param no_store: A boolean which determines that the field should or shouldn't be stored in the data storage :type no_store: bool """ self._description = description self.func = func self._display_func = display_func self._current_selection = default self.enabled = enabled self._dependencies = dependencies self._dependencies_not = dependencies_not self.exec_func = exec_func self._preview_func = preview_func self.mandatory = mandatory self._no_store = no_store @property def dependencies(self) -> List: return self._dependencies @property def dependencies_not(self) -> List: return self._dependencies_not @property def current_selection(self): return self._current_selection @property def preview_func(self): return self._preview_func def do_store(self) -> bool: return self._no_store is False def set_enabled(self, status :bool = True): self.enabled = status def update_description(self, description :str): self._description = description def menu_text(self) -> str: current = '' if self._display_func: current = self._display_func(self._current_selection) else: if self._current_selection is not None: current = str(self._current_selection) if current: padding = 35 - len(str(self._description)) current = ' ' * padding + f'SET: {current}' return f'{self._description} {current}' @property def text(self): return self.menu_text() def set_current_selection(self, current :str): self._current_selection = current def has_selection(self) -> bool: if self._current_selection is None: return False return True def get_selection(self) -> Any: return self._current_selection def is_empty(self) -> bool: if self._current_selection is None: return True elif isinstance(self._current_selection, (str, list, dict)) and len(self._current_selection) == 0: return True return False def is_enabled(self) -> bool: return self.enabled def is_mandatory(self) -> bool: return self.mandatory def set_mandatory(self, status :bool = True): self.mandatory = status if status and not self.is_enabled(): self.set_enabled(True) class GeneralMenu: def __init__(self, data_store :dict = None, auto_cursor=False): """ Create a new selection menu. :param data_store: Area (Dict) where the resulting data will be held. At least an entry for each option. Default area is self._data_store (not preset in the call, due to circular references :type data_store: Dict :param auto_cursor: Boolean which determines if the cursor stays on the first item (false) or steps each invocation of a selection entry (true) :type auto_cursor: bool """ self._translation = Translation.load_nationalization() self.is_context_mgr = False self._data_store = data_store if data_store is not None else {} self.auto_cursor = auto_cursor self._menu_options = {} self._setup_selection_menu_options() def __enter__(self, *args :Any, **kwargs :Any) -> GeneralMenu: self.is_context_mgr = True return self def __exit__(self, *args :Any, **kwargs :Any) -> None: # TODO: https://stackoverflow.com/questions/28157929/how-to-safely-handle-an-exception-inside-a-context-manager # TODO: skip processing when it comes from a planified exit if len(args) >= 2 and args[1]: log(args[1], level=logging.ERROR, fg='red') print(" Please submit this issue (and file) to https://github.com/archlinux/archinstall/issues") raise args[1] for key in self._menu_options: sel = self._menu_options[key] if key and key not in self._data_store: self._data_store[key] = sel._current_selection self.exit_callback() def _setup_selection_menu_options(self): """ Define the menu options. Menu options can be defined here in a subclass or done per progam calling self.set_option() """ return def pre_callback(self, selector_name): """ will be called before each action in the menu """ return def post_callback(self, selector_name :str, value :Any): """ will be called after each action in the menu """ return True def exit_callback(self): """ will be called at the end of the processing of the menu """ return def synch(self, selector_name :str, omit_if_set :bool = False,omit_if_disabled :bool = False): """ loads menu options with data_store value """ arg = self._data_store.get(selector_name, None) # don't display the menu option if it was defined already if arg is not None and omit_if_set: return if not self.option(selector_name).is_enabled() and omit_if_disabled: return if arg is not None: self._menu_options[selector_name].set_current_selection(arg) def enable(self, selector_name :str, omit_if_set :bool = False , mandatory :bool = False): """ activates menu options """ if self._menu_options.get(selector_name, None): self._menu_options[selector_name].set_enabled(True) if mandatory: self._menu_options[selector_name].set_mandatory(True) self.synch(selector_name,omit_if_set) else: print(f'No selector found: {selector_name}') sys.exit(1) def _preview_display(self, selection_name: str) -> Optional[str]: config_name, selector = self._find_selection(selection_name) if preview := selector.preview_func: return preview() return None def _find_selection(self, selection_name: str) -> Tuple[str, Selector]: option = [[k, v] for k, v in self._menu_options.items() if v.text.strip() == selection_name.strip()] if len(option) != 1: raise ValueError(f'Selection not found: {selection_name}') config_name = option[0][0] selector = option[0][1] return config_name, selector def run(self): """ Calls the Menu framework""" # we synch all the options just in case for item in self.list_options(): self.synch(item) self.post_callback # as all the values can vary i have to exec this callback cursor_pos = None while True: # Before continuing, set the preferred keyboard layout/language in the current terminal. # This will just help the user with the next following questions. self._set_kb_language() enabled_menus = self._menus_to_enable() menu_text = [m.text for m in enabled_menus.values()] selection = Menu( _('Set/Modify the below options'), menu_text, sort=False, cursor_index=cursor_pos, preview_command=self._preview_display, preview_size=0.5 ).run() if selection and self.auto_cursor: cursor_pos = menu_text.index(selection) + 1 # before the strip otherwise fails if cursor_pos >= len(menu_text): cursor_pos = len(menu_text) - 1 selection = selection.strip() if selection: # if this calls returns false, we exit the menu. We allow for an callback for special processing on realeasing control if not self._process_selection(selection): break if not self.is_context_mgr: self.__exit__() def _process_selection(self, selection_name :str) -> bool: """ determines and executes the selection y Can / Should be extended to handle specific selection issues Returns true if the menu shall continue, False if it has ended """ # find the selected option in our option list config_name, selector = self._find_selection(selection_name) return self.exec_option(config_name, selector) def exec_option(self, config_name :str, p_selector :Selector = None) -> bool: """ processes the exection of a given menu entry - pre process callback - selection function - post process callback - exec action returns True if the loop has to continue, false if the loop can be closed """ if not p_selector: selector = self.option(config_name) else: selector = p_selector self.pre_callback(config_name) result = None if selector.func: presel_val = self.option(config_name).get_selection() result = selector.func(presel_val) self._menu_options[config_name].set_current_selection(result) if selector.do_store(): self._data_store[config_name] = result exec_ret_val = selector.exec_func(config_name,result) if selector.exec_func else False self.post_callback(config_name,result) if exec_ret_val and self._check_mandatory_status(): return False return True def _set_kb_language(self): """ general for ArchInstall""" # Before continuing, set the preferred keyboard layout/language in the current terminal. # This will just help the user with the next following questions. if self._data_store.get('keyboard-layout', None) and len(self._data_store['keyboard-layout']): set_keyboard_language(self._data_store['keyboard-layout']) def _verify_selection_enabled(self, selection_name :str) -> bool: """ general """ if selection := self._menu_options.get(selection_name, None): if not selection.enabled: return False if len(selection.dependencies) > 0: for d in selection.dependencies: if not self._verify_selection_enabled(d) or self._menu_options.get(d).is_empty(): return False if len(selection.dependencies_not) > 0: for d in selection.dependencies_not: if not self._menu_options.get(d).is_empty(): return False return True raise ValueError(f'No selection found: {selection_name}') def _menus_to_enable(self) -> dict: """ general """ enabled_menus = {} for name, selection in self._menu_options.items(): if self._verify_selection_enabled(name): enabled_menus[name] = selection return enabled_menus def option(self,name :str) -> Selector: # TODO check inexistent name return self._menu_options[name] def list_options(self) -> Iterator: """ Iterator to retrieve the enabled menu option names """ for item in self._menu_options: yield item def list_enabled_options(self) -> Iterator: """ Iterator to retrieve the enabled menu options at a given time. The results are dynamic (if between calls to the iterator some elements -still not retrieved- are (de)activated """ for item in self._menu_options: if item in self._menus_to_enable(): yield item def set_option(self, name :str, selector :Selector): self._menu_options[name] = selector self.synch(name) def _check_mandatory_status(self) -> bool: for field in self._menu_options: option = self._menu_options[field] if option.is_mandatory() and not option.has_selection(): return False return True def set_mandatory(self, field :str, status :bool): self.option(field).set_mandatory(status) def mandatory_overview(self) -> [int, int]: mandatory_fields = 0 mandatory_waiting = 0 for field in self._menu_options: option = self._menu_options[field] if option.is_mandatory(): mandatory_fields += 1 if not option.has_selection(): mandatory_waiting += 1 return mandatory_fields, mandatory_waiting def _select_archinstall_language(self, default_lang): language = select_archinstall_language(default_lang) self._translation.activate(language) return language class GlobalMenu(GeneralMenu): def __init__(self,data_store): super().__init__(data_store=data_store, auto_cursor=True) def _setup_selection_menu_options(self): # archinstall.Language will not use preset values self._menu_options['archinstall-language'] = \ Selector( _('Select Archinstall language'), lambda x: self._select_archinstall_language('English'), default='English', enabled=True) self._menu_options['keyboard-layout'] = \ Selector(_('Select keyboard layout'), lambda preset: select_language('us',preset), default='us') self._menu_options['mirror-region'] = \ Selector( _('Select mirror region'), select_mirror_regions, display_func=lambda x: list(x.keys()) if x else '[]', default={}) self._menu_options['sys-language'] = \ Selector(_('Select locale language'), lambda preset: select_locale_lang('en_US',preset), default='en_US') self._menu_options['sys-encoding'] = \ Selector(_('Select locale encoding'), lambda preset: select_locale_enc('utf-8',preset), default='utf-8') self._menu_options['harddrives'] = \ Selector( _('Select harddrives'), self._select_harddrives) self._menu_options['disk_layouts'] = \ Selector( _('Select disk layout'), lambda x: select_disk_layout( storage['arguments'].get('harddrives', []), storage['arguments'].get('advanced', False) ), dependencies=['harddrives']) self._menu_options['!encryption-password'] = \ Selector( _('Set encryption password'), lambda x: self._select_encrypted_password(), display_func=lambda x: secret(x) if x else 'None', dependencies=['harddrives']) self._menu_options['swap'] = \ Selector( _('Use swap'), lambda preset: ask_for_swap(preset), default=True) self._menu_options['bootloader'] = \ Selector( _('Select bootloader'), lambda preset: ask_for_bootloader(storage['arguments'].get('advanced', False),preset), default="systemd-bootctl" if has_uefi() else "grub-install") self._menu_options['hostname'] = \ Selector( _('Specify hostname'), ask_hostname, default='archlinux') # root password won't have preset value self._menu_options['!root-password'] = \ Selector( _('Set root password'), lambda preset:self._set_root_password(), display_func=lambda x: secret(x) if x else 'None') self._menu_options['!superusers'] = \ Selector( _('Specify superuser account'), lambda: self._create_superuser_account(), dependencies_not=['!root-password'], display_func=lambda x: self._display_superusers()) self._menu_options['!users'] = \ Selector( _('Specify user account'), lambda x: self._create_user_account(), default={}, display_func=lambda x: list(x.keys()) if x else '[]') self._menu_options['profile'] = \ Selector( _('Specify profile'), lambda x: self._select_profile(), display_func=lambda x: x if x else 'None') self._menu_options['audio'] = \ Selector( _('Select audio'), lambda preset: ask_for_audio_selection(is_desktop_profile(storage['arguments'].get('profile', None)),preset)) self._menu_options['kernels'] = \ Selector( _('Select kernels'), lambda preset: select_kernel(preset), default=['linux']) self._menu_options['packages'] = \ Selector( _('Additional packages to install'), # lambda x: ask_additional_packages_to_install(storage['arguments'].get('packages', None)), ask_additional_packages_to_install, default=[]) self._menu_options['additional-repositories'] = \ Selector( _('Additional repositories to enable'), select_additional_repositories, default=[]) self._menu_options['nic'] = \ Selector( _('Configure network'), ask_to_configure_network, display_func=lambda x: x if x else _('Not configured, unavailable unless setup manually'), default={}) self._menu_options['timezone'] = \ Selector( _('Select timezone'), lambda preset: ask_for_a_timezone(preset), default='UTC') self._menu_options['ntp'] = \ Selector( _('Set automatic time sync (NTP)'), lambda preset: self._select_ntp(preset), default=True) self._menu_options['save_config'] = \ Selector( _('Save configuration'), lambda: save_config(self._data_store), enabled=True, no_store=True) self._menu_options['install'] = \ Selector( self._install_text(), exec_func=lambda n,v: True if len(self._missing_configs()) == 0 else False, preview_func=self._prev_install_missing_config, enabled=True, no_store=True) self._menu_options['abort'] = Selector(_('Abort'), exec_func=lambda n,v:exit(1), enabled=True) def _update_install_text(self, name :str = None, result :Any = None): text = self._install_text() self._menu_options.get('install').update_description(text) def post_callback(self,name :str = None ,result :Any = None): self._update_install_text(name, result) def exit_callback(self): if self._data_store.get('harddrives', None) and self._data_store.get('!encryption-password', None): # If no partitions was marked as encrypted, but a password was supplied and we have some disks to format.. # Then we need to identify which partitions to encrypt. This will default to / (root). if len(list(encrypted_partitions(storage['arguments'].get('disk_layouts', [])))) == 0: storage['arguments']['disk_layouts'] = select_encrypted_partitions( storage['arguments']['disk_layouts'], storage['arguments']['!encryption-password']) def _install_text(self): missing = len(self._missing_configs()) if missing > 0: return _('Install ({} config(s) missing)').format(missing) return 'Install' def _prev_install_missing_config(self) -> Optional[str]: if missing := self._missing_configs(): text = str(_('Missing configurations:\n')) for m in missing: text += f'- {m}\n' return text[:-1] # remove last new line return None def _missing_configs(self) -> List[str]: def check(s): return self._menu_options.get(s).has_selection() missing = [] if not check('bootloader'): missing += ['Bootloader'] if not check('hostname'): missing += ['Hostname'] if not check('audio'): missing += ['Audio'] if not check('!root-password') and not check('!superusers'): missing += [str(_('Either root-password or at least 1 superuser must be specified'))] if not check('harddrives'): missing += ['Hard drives'] if check('harddrives'): if not self._menu_options.get('harddrives').is_empty() and not check('disk_layouts'): missing += ['Disk layout'] return missing def _set_root_password(self): prompt = str(_('Enter root password (leave blank to disable root): ')) password = get_password(prompt=prompt) return password def _select_encrypted_password(self): if passwd := get_password(prompt=str(_('Enter disk encryption password (leave blank for no encryption): '))): return passwd else: return None def _select_ntp(self, preset :bool = True) -> bool: ntp = ask_ntp(preset) value = str(ntp).lower() SysCommand(f'timedatectl set-ntp {value}') return ntp def _select_harddrives(self, old_harddrives : list) -> list: # old_haddrives = storage['arguments'].get('harddrives', []) harddrives = select_harddrives(old_harddrives) # in case the harddrives got changed we have to reset the disk layout as well if old_harddrives != harddrives: self._menu_options.get('disk_layouts').set_current_selection(None) storage['arguments']['disk_layouts'] = {} if not harddrives: prompt = _( "You decided to skip harddrive selection\nand will use whatever drive-setup is mounted at {} (experimental)\n" "WARNING: Archinstall won't check the suitability of this setup\n" "Do you wish to continue?" ).format(storage['MOUNT_POINT']) choice = Menu(prompt, ['yes', 'no'], default_option='yes').run() if choice == 'no': return self._select_harddrives() return harddrives def _select_profile(self): profile = select_profile() # Check the potentially selected profiles preparations to get early checks if some additional questions are needed. if profile and profile.has_prep_function(): namespace = f'{profile.namespace}.py' with profile.load_instructions(namespace=namespace) as imported: if not imported._prep_function(): log(' * Profile\'s preparation requirements was not fulfilled.', fg='red') exit(1) return profile def _create_superuser_account(self): superusers = ask_for_superuser_account(str(_('Enter a username to create an additional superuser (leave blank to skip): '))) return superusers if superusers else None def _create_user_account(self): users = ask_for_additional_users(str(_('Enter a username to create an additional user (leave blank to skip): '))) return users def _display_superusers(self): superusers = self._data_store.get('!superusers', {}) if self._menu_options.get('!root-password').has_selection(): return list(superusers.keys()) if superusers else '[]' else: return list(superusers.keys()) if superusers else ''