Added type annotations to all functions (#845)

* Added type annotations for 1/5 of the files.

There's bound to be some issues with type miss-match, will sort that out later.

* Added type hints for 4/5 of the code

* Added type hints for 4.7/5 of the code

* Added type hints for 5/5 of the code base

* Split the linters into individual files

This should help with more clearly show which runner is breaking since they don't share a single common name any longer. Also moved mypy settings into pyproject.toml

* Fixed some of the last flake8 issues

* Missing parameter

* Fixed invalid lookahead types

* __future__ had to be at the top

* Fixed last flake8 issues

1 files changed, 32 insertions, 9 deletions

diff --git a/archinstall/lib/luks.py b/archinstall/lib/luks.py
index 255c75d9..26f2bc1b 100644
--- a/archinstall/lib/luks.py
+++ b/archinstall/lib/luks.py
@@ -1,9 +1,15 @@
+from __future__ import annotations
 import json
 import logging
 import os
 import pathlib
 import shlex
 import time
+from typing import Optional, List,TYPE_CHECKING
+# https://stackoverflow.com/a/39757388/929999
+if TYPE_CHECKING:
+	from .installer import Installer
+
 from .disk import Partition, convert_device_to_uuid
 from .general import SysCommand, SysCommandWorker
 from .output import log
@@ -11,7 +17,15 @@ from .exceptions import SysCallError, DiskError
 from .storage import storage
 
 class luks2:
-	def __init__(self, partition, mountpoint, password, key_file=None, auto_unmount=False, *args, **kwargs):
+	def __init__(self,
+		partition :Partition,
+		mountpoint :str,
+		password :str,
+		key_file :Optional[str] = None,
+		auto_unmount :bool = False,
+		*args :str,
+		**kwargs :str):
+
 		self.password = password
 		self.partition = partition
 		self.mountpoint = mountpoint
@@ -22,7 +36,7 @@ class luks2:
 		self.filesystem = 'crypto_LUKS'
 		self.mapdev = None
 
-	def __enter__(self):
+	def __enter__(self) -> Partition:
 		if not self.key_file:
 			self.key_file = f"/tmp/{os.path.basename(self.partition.path)}.disk_pw"  # TODO: Make disk-pw-file randomly unique?
 
@@ -34,16 +48,23 @@ class luks2:
 
 		return self.unlock(self.partition, self.mountpoint, self.key_file)
 
-	def __exit__(self, *args, **kwargs):
+	def __exit__(self, *args :str, **kwargs :str) -> bool:
 		# TODO: https://stackoverflow.com/questions/28157929/how-to-safely-handle-an-exception-inside-a-context-manager
 		if self.auto_unmount:
 			self.close()
 
 		if len(args) >= 2 and args[1]:
 			raise args[1]
+
 		return True
 
-	def encrypt(self, partition, password=None, key_size=512, hash_type='sha512', iter_time=10000, key_file=None):
+	def encrypt(self, partition :Partition,
+		password :Optional[str] = None,
+		key_size :int = 512,
+		hash_type :str = 'sha512',
+		iter_time :int = 10000,
+		key_file :Optional[str] = None) -> str:
+
 		log(f'Encrypting {partition} (This might take a while)', level=logging.INFO)
 
 		if not key_file:
@@ -119,7 +140,7 @@ class luks2:
 
 		return key_file
 
-	def unlock(self, partition, mountpoint, key_file):
+	def unlock(self, partition :Partition, mountpoint :str, key_file :str) -> Partition:
 		"""
 		Mounts a luks2 compatible partition to a certain mountpoint.
 		Keyfile must be specified as there's no way to interact with the pw-prompt atm.
@@ -142,18 +163,18 @@ class luks2:
 			unlocked_partition = Partition(self.mapdev, None, encrypted=True, filesystem=get_filesystem_type(self.mapdev), autodetect_filesystem=False)
 			return unlocked_partition
 
-	def close(self, mountpoint=None):
+	def close(self, mountpoint :Optional[str] = None) -> bool:
 		if not mountpoint:
 			mountpoint = self.mapdev
 
 		SysCommand(f'/usr/bin/cryptsetup close {self.mapdev}')
 		return os.path.islink(self.mapdev) is False
 
-	def format(self, path):
+	def format(self, path :str) -> None:
 		if (handle := SysCommand(f"/usr/bin/cryptsetup -q -v luksErase {path}")).exit_code != 0:
 			raise DiskError(f'Could not format {path} with {self.filesystem} because: {b"".join(handle)}')
 
-	def add_key(self, path :pathlib.Path, password :str):
+	def add_key(self, path :pathlib.Path, password :str) -> bool:
 		if not path.exists():
 			raise OSError(2, f"Could not import {path} as a disk encryption key, file is missing.", str(path))
 
@@ -169,7 +190,9 @@ class luks2:
 		if worker.exit_code != 0:
 			raise DiskError(f'Could not add encryption key {path} to {self.partition} because: {worker}')
 
-	def crypttab(self, installation, key_path :str, options=["luks", "key-slot=1"]):
+		return True
+
+	def crypttab(self, installation :Installer, key_path :str, options :List[str] = ["luks", "key-slot=1"]) -> None:
 		log(f'Adding a crypttab entry for key {key_path} in {installation}', level=logging.INFO)
 		with open(f"{installation.target}/etc/crypttab", "a") as crypttab:
 			crypttab.write(f"{self.mountpoint} UUID={convert_device_to_uuid(self.partition.path)} {key_path} {','.join(options)}\n")