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path: root/archinstall/lib/locale/locale.py
blob: 90f20cc6602f327c5ded8b268b5d19c0d878f763 (plain)
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from typing import Iterator, List

from ..exceptions import ServiceException, SysCallError
from ..general import SysCommand
from ..output import error


def list_keyboard_languages() -> Iterator[str]:
	for line in SysCommand("localectl --no-pager list-keymaps", environment_vars={'SYSTEMD_COLORS': '0'}):
		yield line.decode('UTF-8').strip()


def list_locales() -> List[str]:
	locales = []

	with open('/usr/share/i18n/SUPPORTED') as file:
		for line in file:
			if line != 'C.UTF-8 UTF-8\n':
				locales.append(line.rstrip())

	return locales


def list_x11_keyboard_languages() -> Iterator[str]:
	for line in SysCommand("localectl --no-pager list-x11-keymap-layouts", environment_vars={'SYSTEMD_COLORS': '0'}):
		yield line.decode('UTF-8').strip()


def verify_keyboard_layout(layout :str) -> bool:
	for language in list_keyboard_languages():
		if layout.lower() == language.lower():
			return True
	return False


def verify_x11_keyboard_layout(layout :str) -> bool:
	for language in list_x11_keyboard_languages():
		if layout.lower() == language.lower():
			return True
	return False


def set_kb_layout(locale :str) -> bool:
	if len(locale.strip()):
		if not verify_keyboard_layout(locale):
			error(f"Invalid keyboard locale specified: {locale}")
			return False

		try:
			SysCommand(f'localectl set-keymap {locale}')
		except SysCallError as err:
			raise ServiceException(f"Unable to set locale '{locale}' for console: {err}")

		return True

	return False


def list_timezones() -> Iterator[str]:
	for line in SysCommand("timedatectl --no-pager list-timezones", environment_vars={'SYSTEMD_COLORS': '0'}):
		yield line.decode('UTF-8').strip()