mirror of
https://github.com/Snigdha-OS/snigdhaos-kernel-switcher.git
synced 2025-09-07 23:54:57 +02:00
318 lines
13 KiB
Python
318 lines
13 KiB
Python
#!/bin/python
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import os
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from os import makedirs
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import logging
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import locale
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import datetime
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import sys
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import psutil
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import subprocess
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import distro
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import requests
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import threading
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import pathlib
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import queue
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from logging.handlers import TimedRotatingFileHandler
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import tomlkit
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import shutil
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import gi
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gi.require_version("Gtk", "3.0") # GTK 2.0 is dead!
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from gi.repository import GLib
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base_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
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lastest_archlinux_package_search_url = ("https://archlinux.org/packages/search/json?name=${PACKAGE_NAME}")
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archlinux_mirror_archive_url = "https://archive.archlinux.org/"
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headers = {
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"Content-Type": "text/plain;charset=UTF-8",
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"User-Agent": "",
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}
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cache_days = 5
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fetched_kernels_dict = {}
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cached_kernel_list = []
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community_kernels_list = []
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supported_kernel_dict = {}
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community_kernels_dict = {}
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pacman_repos_list = []
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process_timeout = 500
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sudo_username = os.getlogin()
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home = "/home" + str(sudo_username)
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pacman_logfile = "/var/log/pacman.log"
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pacman_lockfile = "/var/lib/pacman/db.lck"
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pacman_conf_file = "/etc/pacman.conf"
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pacman_cache = "/var/cache/pacman/pkg"
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#Threads
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thread_get_kernels = "thread_get_kernels"
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thread_get_community_kernels = "thread_get_community_kernels"
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thread_install_community_kernel = "thread_install_community_kernel"
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thread_install_archive_kernel = "thread_install_archive_kernel"
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thread_check_kernel_state = "thread_check_kernel_state"
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thread_uninstall_kernel = "thread_uninstall_kernel"
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thread_monitor_messages = "thread_monitor_messages"
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thread_refresh_cache = "thread_refresh_cache"
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thread_refresh_ui = "thread_refresh_ui"
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cache_dir = "%s/.cache/snigdhaos-kernel-switcher" % home
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cache_file = "%s/kernels.toml" % cache_dir
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cache_update = "%s/update" % cache_dir
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log_dir = "/var/log/snigdhaos-kernel-switcher"
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event_log_file = "%s/event.log" % log_dir
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config_file_default = "%s/defaults/config.toml" % base_dir
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config_dir = "%s/.config/snigdhaos-kernel-switcher" % home
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config_file = "%s/.config/snigdhaos-kernel-switcher/config.toml" % home
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logger = logging.getLogger("logger")
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# console handler
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ch = logging.StreamHandler()
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# Format
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formatter = logging.Formatter("%(asctime)s:%(levelname)s > %(message)s", "%Y-%m-%d %H:%M:%S")
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ch.setFormatter(formatter)
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logger.addHandler(ch)
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#Local
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locale.setlocale(locale.LC_ALL, "C.utf8")
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locale_env = os.environ
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locale_env["LC_ALL"] = "C.utf8"
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# Function -> check general update
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def permissions(dst):
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try:
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groups = subprocess.run(["sh", "-c", "id" + sudo_username], shell=False, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, env=locale_env)
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for i in groups.stdout.decode().split(" "):
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if "gid" in i:
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g = i.split("(")[1]
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group = g.replace(")", "").strip()
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subprocess.call(["chown", "-R", sudo_username, + ":" + group, dst], shell=False, env=locale_env)
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except Exception as e:
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logger.error("Found Error in permissions()!" % e)
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def refresh_cache(self):
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cached_kernel_list.clear()
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if os.path.exists(cache_file):
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os.remove(cache_file)
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def write_cache():
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try:
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if len(fetched_kernels_dict) > 0:
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with open(cache_file,"w",encoding="utf-8") as f:
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f.write('title = "Arch Linux Kernels"\n\n')
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f.write('timestamp = "%s"\n' % datetime.datetime.now().strftime("%Y-%m-%d %H-%M-%S"))
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f.write('source = "%s"\n\n' % archlinux_mirror_archive_url)
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for kernel in fetched_kernels_dict.values():
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f.write("[[kernel]]\n")
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f.write('name = "%s"\nheaders = "%s"\nsize = "%s"\nfile_format = "%s"\nlast_modified = "%s"\n\n' % (kernel.name, kernel.headers, kernel.version, kernel.size, kernel.file_format,kernel.last_modified))
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permissions(cache_file)
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except Exception as e:
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logger.error("Found error in write_cache() %s" % e)
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def get_latest_kernel_updates(self):
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logger.info("Getting latest Kernel Version! Please Wait...")
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try:
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latest_update_check = None
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fetch_update = False
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check_timeout = None
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if os.path(cache_file):
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with open(cache_file, "r", encoding="utf-8") as f:
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data = f.readlines()[2]
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if len(data) == 0:
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logger.error("%s is empty! Please restart the application after deleting it." %cache_file)
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if len(data) > 0 and "timestamp" in data.strip():
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cache_timestamp = (data.split("timestamp = ")[1].replace('"', "").strip())
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if not os.path.exists(cache_update):
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last_update_check = datetime.datetime.now().strftime("%Y-%m-%d")
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with open(cache_update, mode="w", encoding="utf-8") as f:
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f.write("%s\n" % last_update_check)
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permissions(cache_dir)
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else:
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with open(cache_update, mode="r", encoding="utf-8") as f:
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last_update_check = f.read().strip()
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with open(cache_update, mode="w", encoding="utf-8") as f:
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f.write("%s\n" % datetime.datetime.now().strftime("%Y-%m-%d"))
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permissions(cache_dir)
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logger.info("Last Update fetched on %s" % datetime.datetime.strptime(last_update_check, "%Y-%m-%d").date())
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if (datetime.datetime.strptime(last_update_check, "%Y-%m-%d").date() < datetime.datetime.now().date()):
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logger.info("Fetching Linux Package Update Date...")
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response = requests.get(lastest_archlinux_package_search_url.replace("${PACKAGE_NAME}", "linux"),headers=headers,allow_redirects=True,timeout=60,stream=True)
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if response.status_code == 200:
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if response.json() is not None:
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if len(response.json()["results"]) > 0:
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if response.json()["results"][0]["last_update"]:
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logger.info("Linux Kernel Package Last Update = %s" % datetime.datetime.strptime(response.json()["results"][0]["last_update"], "%Y-%m-%dT%H:%M:%S.%f.%z").date())
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if (datetime.datetime.strptime(response.json()["results"][0]["last_update"], "%Y-%m-%dT%H:%M:%S.%f.%z").date()) >= (datetime.datetime.strptime(cache_timestamp, "%Y-%m-%d %H-%M-%S").date()):
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logger.info("Linux Package Updated!")
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refresh_cache(self)
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return True
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else:
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logger.info("Linux Kernel Update Failed!")
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return False
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else:
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logger.error("Failed to get Response Code!")
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logger.error(response.text)
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return False
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else:
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logger.info("Update Check Not Required!")
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return False
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else:
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logger.info("No Cache File Preset at the Moment!")
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if not os.path.exists(cache_update):
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last_update_check = datetime.datetime.now().strftime("%Y-%m-%d")
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with open(cache_update, mode="w", encoding="utf-8") as f:
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f.write("%s\n" % last_update_check)
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permissions(cache_dir)
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except Exception as e:
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logger.error("Found error in get_latest_kernel_updates() %s" % e)
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return True
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def get_cache_last_modified():
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try:
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if os.path.exists(cache_file):
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timestamp = datetime.datetime.fromtimestamp(pathlib.Path(cache_file).stat().st_mtime, tz=datetime.timezone.utc)
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return "%s %s" %(timestamp.date(), str(timestamp.time()).split(".")[0])
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else:
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return "Cache File Does not Exist!"
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except Exception as e:
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logger.error("Found Error in get_cache_last_modified() %s" % e)
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try:
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if not os.path.exists(log_dir):
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makedirs(log_dir)
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except Exception as e:
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logger.error("Found Error while creating log_dir %s" % e)
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tfh = TimedRotatingFileHandler(event_log_file, encoding="utf-8", delay=False, when="W4")
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tfh.setFormatter(formatter)
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logger.addHandler(tfh)
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def setup_config(self):
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try:
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if not os.path.exists(config_dir):
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makedirs(config_dir)
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if not os.path.exists(config_file):
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# makedirs(config_file)
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shutil.copy(config_file_default, config_dir)
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permissions(config_dir)
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return read_config(self)
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except Exception as e:
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logger.error("Found error in setup_config() %s" % e)
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def update_config(config_data, bootloader):
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try:
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logger.info("Update Configuration Data...")
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with open(config_file, "w") as f:
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tomlkit.dump(config_data, f)
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return True
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except Exception as e:
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logger.error("Found error in update_config() %s" % e)
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def read_config(self):
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try:
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logger.info("Reading config file: %s" %config_file)
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config_data = None
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with open(config_file, "rb") as f:
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config_data = tomlkit.load(f)
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if (config_data.get("kernels") and "official" in config_data["kernels"] is not None):
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for i in config_data["kernels"]["official"]:
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supported_kernel_dict[i["name"]] = (i["description"], i["headers"])
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if (config_data.get("kernels") and "community" in config_data["kernels"] is not None):
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for j in config_data["kernels"]["community"]:
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community_kernels_dict[j["name"]] = (j["description"], j["headers"], j["repository"])
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if (config_data.get("logging") is not None and "loglevel" in config_data["logging"] is not None):
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loglevel = config_data["logging"]["loglevel"].lower()
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logger.info("Setting loglevel: %s" % loglevel)
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if loglevel == "debug":
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logger.setLevel(logging.DEBUG)
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elif loglevel == "info":
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logger.setLevel(logging.INFO)
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else:
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logger.warning("Invalid loglevel found! Available: Info/Debug")
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logger.setLevel(logging.INFO)
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else:
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logger.setLevel(logging.INFO)
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return config_data
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except Exception as e:
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logger.error("Found error in read_config() %s" % e)
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sys.exit(1)
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def create_cache_dir():
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try:
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if not os.path.exists(cache_dir):
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makedirs(cache_dir)
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logger.info("Cache Directory: %s" % cache_dir)
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permissions(cache_dir)
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except Exception as e:
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logger.error("Found error in create_cache_dir() %s" %e)
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def create_log_dir():
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try:
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if not os.path.exists(log_dir):
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makedirs(log_dir)
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logger.info("Log Directory: %s" % log_dir)
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except Exception as e:
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logger.error("Found error in create_log_dir() %s" %e)
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def install_archive_kernel(self):
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try:
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logger.debug("Cleaning pacman cache and removing official packages...")
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if os.path.exists(pacman_cache):
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for root, dirs, files in os.walk(pacman_cache):
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for name in files:
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for official_kernels in supported_kernel_dict.keys():
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if name.startswith(official_kernels):
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if os.path.exists(os.path.join(root, name)):
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os.remove(os.path.join(root, name))
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install_cmd_str = ["pacman", "-U", self.official_kernels[0], self.official_kernels[1], "--noconfirm", "--needed"]
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# Need to wait for process
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wait_for_pacman_process()
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if logger.getEffectiveLevel() == 10:
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logger.debug("Running %s" % install_cmd_str)
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event = "%s [INFO] Running %s\n" %(datetime.datetime.now().strftime("%Y-%m-%d-%H-%M-%S"), " ".join(install_cmd_str))
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error = False
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self.messages_queue.put(event)
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with subprocess.Popen(install_cmd_str, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True,env=locale_env) as process:
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while True:
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if process.poll() is not None:
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break
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for line in process.stdout:
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if logger.getEffectiveLevel() == 10:
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print(line.strip())
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self.messages_queue.put(line)
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if "no space left on device" in line.lower().strip():
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self.restore_kernel = None
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error = True
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break
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if "initcpio" in line.lower().strip():
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if "image generation successfull" in line.lower().strip():
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error = False
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break
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if ("installation finished, no error reported" in line.lower().strip()):
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error = False
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break
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if "error" in line.lower().strip() or "errors" in line.lower().strip():
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error = True
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break
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if error is True:
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self.errors_found = True
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error = True
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GLib.idle_add(
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show_mw,
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self,
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"System changes",
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f"kernel {self.action} failed!\n"
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f"<b>There have been errors, please review the log</b>",
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priority=GLib.PRIORITY_DEFAULT,
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)
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def wait_for_pacman_process(): |