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from itertools import takewhile
from pathlib import Path
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]:
entries = Path('/etc/locale.gen').read_text().splitlines()
# Before the list of locales begins there's an empty line with a '#' in front
# so we'll collect the locales from bottom up and halt when we're done.
locales = list(takewhile(bool, map(lambda entry: entry.strip('\n\t #'), reversed(entries))))
locales.reverse()
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_keyboard_language(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()
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