Cleanup imports and unused code (#1801)

* Cleanup imports and unused code

* Update build check

* Keep deprecation exception

* Simplify logging

---------

Co-authored-by: Daniel Girtler <girtler.daniel@gmail.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/archinstall/lib/locale.py b/archinstall/lib/locale.py
new file mode 100644
index 00000000..0a36c072
--- /dev/null
+++ b/archinstall/lib/locale.py
@@ -0,0 +1,68 @@
+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]:
+	with open('/etc/locale.gen', 'r') as fp:
+		locales = []
+		# before the list of locales begins there's an empty line with a '#' in front
+		# so we'll collect the localels from bottom up and halt when we're donw
+		entries = fp.readlines()
+		entries.reverse()
+
+		for entry in entries:
+			text = entry.replace('#', '').strip()
+			if text == '':
+				break
+			locales.append(text)
+
+		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()