User error info and version check (#2169)

* Add user information for error

* Show output if newer version available

* Update

* Update

* flake8

---------

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

archinstall/__init__.py

@@ -1,6 +1,8 @@
 """Arch Linux installer - guided, templates etc."""
 import importlib
 import os
+import time
+import traceback
 from argparse import ArgumentParser, Namespace
 from pathlib import Path
 from typing import TYPE_CHECKING, Any, Dict, Union
@@ -21,6 +23,7 @@ from . import default_profiles
 from .lib.hardware import SysInfo, GfxDriver
 from .lib.installer import Installer, accessibility_tools_in_use
 from .lib.output import FormattedOutput, log, error, debug, warn, info
+from .lib.pacman import Pacman
 from .lib.storage import storage
 from .lib.global_menu import GlobalMenu
 from .lib.boot import Boot
@@ -34,7 +37,6 @@ from .lib.general import (
 	run_custom_user_commands, json_stream_to_structure, secret
 )
 
-
 if TYPE_CHECKING:
 	_: Any
 
@@ -42,7 +44,6 @@ if TYPE_CHECKING:
 __version__ = "2.6.3"
 storage['__version__'] = __version__
 
-
 # add the custom _ as a builtin, it can now be used anywhere in the
 # project to mark strings as translatable with _('translate me')
 DeferredTranslation.install()
@@ -57,12 +58,10 @@ debug(f"Graphics devices detected: {SysInfo._graphics_devices().keys()}")
 # For support reasons, we'll log the disk layout pre installation to match against post-installation layout
 debug(f"Disk states before installing: {disk.disk_layouts()}")
 
-
 if os.getuid() != 0:
 	print(_("Archinstall requires root privileges to run. See --help for more."))
 	exit(1)
 
-
 parser = ArgumentParser()
 
 
@@ -82,14 +81,17 @@ def define_arguments():
 	parser.add_argument("--dry-run", "--dry_run", action="store_true",
 						help="Generates a configuration file and then exits instead of performing an installation")
 	parser.add_argument("--script", default="guided", nargs="?", help="Script to run for installation", type=str)
-	parser.add_argument("--mount-point","--mount_point", nargs="?", type=str, help="Define an alternate mount point for installation")
+	parser.add_argument("--mount-point", "--mount_point", nargs="?", type=str,
+						help="Define an alternate mount point for installation")
 	parser.add_argument("--debug", action="store_true", default=False, help="Adds debug info into the log")
-	parser.add_argument("--offline", action="store_true", default=False, help="Disabled online upstream services such as package search and key-ring auto update.")
+	parser.add_argument("--offline", action="store_true", default=False,
-	parser.add_argument("--no-pkg-lookups", action="store_true", default=False, help="Disabled package validation specifically prior to starting installation.")
+						help="Disabled online upstream services such as package search and key-ring auto update.")
+	parser.add_argument("--no-pkg-lookups", action="store_true", default=False,
+						help="Disabled package validation specifically prior to starting installation.")
 	parser.add_argument("--plugin", nargs="?", type=str)
 
 
-def parse_unspecified_argument_list(unknowns :list, multiple :bool = False, err :bool = False) -> dict:
+def parse_unspecified_argument_list(unknowns: list, multiple: bool = False, err: bool = False) -> dict:
 	"""We accept arguments not defined to the parser. (arguments "ad hoc").
 	Internally argparse return to us a list of words so we have to parse its contents, manually.
 	We accept following individual syntax for each argument
@@ -105,32 +107,32 @@ def parse_unspecified_argument_list(unknowns :list, multiple :bool = False, err
 	argument value value ...
 	which isn't am error if multiple is specified
 	"""
-	tmp_list = unknowns[:]   # wastes a few bytes, but avoids any collateral effect of the destructive nature of the pop method()
+	tmp_list = unknowns[:]  # wastes a few bytes, but avoids any collateral effect of the destructive nature of the pop method()
 	config = {}
 	key = None
 	last_key = None
 	while tmp_list:
-		element = tmp_list.pop(0)			  # retrieve an element of the list
+		element = tmp_list.pop(0)  # retrieve an element of the list
-		if element.startswith('--'):		   # is an argument ?
+		if element.startswith('--'):  # is an argument ?
-			if '=' in element:				 # uses the arg=value syntax ?
+			if '=' in element:  # uses the arg=value syntax ?
 				key, value = [x.strip() for x in element[2:].split('=', 1)]
 				config[key] = value
-				last_key = key				 # for multiple handling
+				last_key = key  # for multiple handling
-				key = None					 # we have the kwy value pair we need
+				key = None  # we have the kwy value pair we need
 			else:
 				key = element[2:]
-				config[key] = True   # every argument starts its lifecycle as boolean
+				config[key] = True  # every argument starts its lifecycle as boolean
 		else:
 			if element == '=':
 				continue
 			if key:
 				config[key] = element
-				last_key = key # multiple
+				last_key = key  # multiple
 				key = None
 			else:
 				if multiple and last_key:
-					if isinstance(config[last_key],str):
+					if isinstance(config[last_key], str):
-						config[last_key] = [config[last_key],element]
+						config[last_key] = [config[last_key], element]
 					else:
 						config[last_key].append(element)
 				elif err:
@@ -158,6 +160,7 @@ def cleanup_empty_args(args: Union[Namespace, Dict]) -> Dict:
 
 	return clean_args
 
+
 def get_arguments() -> Dict[str, Any]:
 	""" The handling of parameters from the command line
 	Is done on following steps:
@@ -275,12 +278,25 @@ def plugin(f, *args, **kwargs):
 	plugins[f.__name__] = f
 
 
-def run_as_a_module():
+def _check_new_version():
+	info("Checking version...")
+	Pacman.run("-Sy")
+	upgrade = Pacman.run("-Qu archinstall").decode()
+
+	if upgrade:
+		text = f'New version available: {upgrade}'
+		info(text)
+		time.sleep(3)
+
+
+def main():
 	"""
 	This can either be run as the compiled and installed application: python setup.py install
 	OR straight as a module: python -m archinstall
 	In any case we will be attempting to load the provided script to be run from the scripts/ folder
 	"""
+	_check_new_version()
+
 	script = arguments.get('script', None)
 
 	if script is None:
@@ -289,3 +305,20 @@ def run_as_a_module():
 	mod_name = f'archinstall.scripts.{script}'
 	# by loading the module we'll automatically run the script
 	importlib.import_module(mod_name)
+
+
+def run_as_a_module():
+	try:
+		main()
+	except Exception as e:
+		err = ''.join(traceback.format_exception(e))
+		error(err)
+
+		text = (
+			'Archinstall experienced the above error. If you think this is a bug, please report it to\n'
+			'https://github.com/archlinux/archinstall and include the log file "/var/log/archinstall/install.log".\n\n'
+			'Hint: To extract the log from a live ISO \ncurl -F\'file=@/var/log/archinstall/install.log\' https://0x0.st\n'
+		)
+
+		warn(text)
+		exit(1)