🛠 refactor(construct): going on+

lib/functions.py

@@ -4,30 +4,182 @@
 import logging
 from logging import Logger
 import locale
+import shutil
+import tomlkit
+import sys
 import gi
 from gi.repository import Gtk
 gi.require_version("Gtk", "3.0")
 
-basedir = os.path.abspath(os.path.join(os.path.dirname(__file__)))
-sudousername = os.getlogin()
+BaseDir = os.path.abspath(os.path.join(os.path.dirname(__file__)))
+SudoUsername = os.getlogin()
 logger = logging.getLogger("logger")
 ch = logging.StreamHandler()
 # source: https://stackoverflow.com/questions/3220284/how-to-customize-the-time-format-for-python-logging
 formatter = logging.Formatter("%(asctime)s:%(levelname)s > %(message)s", "%Y-%m-%d %H:%M:%S")
 ch.setFormatter(formatter)
 logger.addHandler(ch)
 locale.setlocale(locale.LC_ALL, "C.utf-8")
-locale_env = os.environ
-locale_env["LC_ALL"] = "C.utf-8"
+LocalEnv = os.environ
+LocalEnv["LC_ALL"] = "C.utf-8"
 
 def permissions(dst):
     try:
-        groups = subprocess.run(["sh", "-c", "id " + sudousername],shell=False,stdout=subprocess.PIPE,stderr=subprocess.STDOUT,env=locale_env)
+        groups = subprocess.run(["sh", "-c", "id " + SudoUsername],shell=False,stdout=subprocess.PIPE,stderr=subprocess.STDOUT,env=LocalEnv)
         for i in groups.stdout.decode().split(" "):
             if "gid" in i:
                 g = i.split("(")[1]
                 group = g.replace(")", "".strip())
-        subprocess.call(["chown", "-R", sudousername + ":" + group, dst],shell=False,env=locale_env)
+        subprocess.call(["chown", "-R", SudoUsername + ":" + group, dst],shell=False,env=LocalEnv)
     except Exception as e:
         logger.error("Found error in permissions() ! Type: %s" %e)
+HomeDir = "/home/" + str(SudoUsername)
+default_ConfigFile = "%s/default/config.toml" %BaseDir
+ConfigDir = "%s/.config/snigdhaos-kernel-switcher" %HomeDir
+ConfigFile = "%s/.config/snigdhaos-kernel-switcher/config.toml" %ConfigDir
 
+def setupConfig(self):
+    try:
+        if not os.path.exists(ConfigDir):
+            makedirs(ConfigDir)
+        if not os.path.exists(ConfigFile):
+            shutil.copy(default_ConfigFile,ConfigDir)
+            permissions(ConfigDir)
+        return readConfig(self)
+    except Exception as e:
+        logger.error("Found error in setupConfig() ! Type: %s" %e)
+
+SupportedKernelDict = {}
+CommunityKernelDict = {}
+def readConfig(self):
+    try:
+        logger.info("Reading config file: %s"%ConfigFile)
+        ConfigData = None
+        with open(ConfigFile, "rb") as f:
+            ConfigData = tomlkit.load(f)
+            if ConfigData.get("kernels") and "official" in ConfigData["kernels"] is not None:
+                for OfficialKernel in ConfigData["kernels"]["official"]:
+                    SupportedKernelDict[OfficialKernel["name"]] = (OfficialKernel["description"], OfficialKernel["headers"])
+            if ConfigData.get("kernels") and "community" in ConfigData["kernels"] is not None:
+                for CommunityKernel in ConfigData["kernels"]["community"]:
+                    CommunityKernelDict[CommunityKernel["name"]] = (CommunityKernel["description"], CommunityKernel["headers"], CommunityKernel["repository"])
+            if ConfigData.get("logging") is not None and "loglevel" in ConfigData["logging"] is not None:
+                loglevel = ConfigData["logging"]["loglevel"].lower()
+                logger.info("Setting LogLevel: %s" %loglevel)
+                if loglevel == "debug":
+                    logger.setLevel(logging.DEBUG)
+                elif loglevel == "info":
+                    logger.setLevel(logging.INFO)
+                else:
+                    logger.warning("Invalid logging level set, use info / debug")
+                    logger.setLevel(logging.INFO)
+            else:
+                logger.setLevel(logging.INFO)
+        return ConfigData
+    except Exception as e:
+        logger.error("Found error in readConfig() ! Type: %s"%e)
+        sys.exit(1)
+
+def updateConfig(ConfigData, BootLoader):
+    try:
+        logger.info("Updating config data...")
+        with open(ConfigFile, "w") as f:
+            tomlkit.dump(ConfigData, f)
+        return True
+    except Exception as e:
+        logger.error("Found error in updateConfig() ! Type: %s"%e)
+        return False
+
+CacheDir = "%s/.cache/snigdhaos-kernel-switcher" % HomeDir
+CacheFile = "%s/kernels.toml" % CacheDir
+CacheUpdate = "%s/update" % CacheDir
+def createCacheDir():
+    try:
+        if not os.path.exists(CacheDir):
+            makedirs(CacheDir)
+        logger.info("Cache directory = %s" % CacheDir)
+        permissions(CacheDir)
+    except Exception as e:
+        logger.error("Found error in createCacheDir() ! Type: %s" %e)
+
+LogDir = "/var/log/snigdhaos-kernel-switcher"
+EventLogFile = "%s/event.log" %LogDir
+def createLogDir():
+    try:
+        if not os.path.exists(LogDir):
+            makedirs(LogDir)
+        logger.info("Log directory : %s" %LogDir)
+    except Exception as e:
+        logger.error("Found error in create_log_dir() ! Type: %s" %e)
+
+import datetime
+FetchedKernelsDict = {}
+ArchlinuxMirrorArchiveUrl = "https://archive.archlinux.org"
+headers = {
+    "Content-Type": "text/plain;charset=UTF-8",
+    "User-Agent": "Mozilla/5.0 (Linux x86_64) Gecko Firefox",
+}
+def writeCache():
+    try:
+        if len(FetchedKernelsDict) > 0:
+            with open(CacheFile, "w", encoding="utf-8") as f:
+                f.write('title = "Arch Linux Kernels"\n\n')
+                f.write('timestamp = "%s"\n'%datetime.datetime.now().strftime("%Y-%m-%d %H-%M-%S"))
+                f.write('source = "%s"\n\n' % ArchlinuxMirrorArchiveUrl)
+                for kernel in FetchedKernelsDict.values():
+                    f.write("[[kernel]]\n")
+                    f.write('name = "%s"\nheaders = "%s"\nversion = "%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))
+            permissions(CacheFile)
+    except Exception as e:
+        logger.error("Found error in write_cache() ! Type: %s" % e)
+
+CacheDays = 5
+CachedKernelsList = []
+def readCache(self):
+    try:
+        self.timestamp = None
+        with open(CacheFile, "rb") as f:
+            data = tomlkit.load(f)
+            if len(data) == 0:
+                logger.error("%s is empty, delete it and open the app again" % CacheFile)
+            name = None
+            headers = None
+            version = None
+            size = None
+            last_modified = None
+            file_format = None
+            if len(data) > 0:
+                self.timestamp = data["timestamp"]
+                self.cache_timestamp = data["timestamp"]
+                if self.timestamp:
+                    self.timestamp = datetime.datetime.strptime(self.timestamp, "%Y-%m-%d %H-%M-%S")
+                    delta = datetime.datetime.now() - self.timestamp
+                    if delta.days >= CacheDays:
+                        logger.info("Cache is older than 5 days, refreshing ..")
+                        refresh_cache(self)
+                    else:
+                        if delta.days > 0:
+                            logger.debug("Cache is %s days old" % delta.days)
+                        else:
+                            logger.debug("Cache is newer than 5 days")
+                        kernels = data["kernel"]
+                        if len(kernels) > 1:
+                            for k in kernels:
+                                if (datetime.datetime.now().year - datetime.datetime.strptime(k["last_modified"], "%d-%b-%Y %H:%M").year <= 2):
+                                    CachedKernelsList.append(Kernel(k["name"],k["headers"],k["version"],k["size"],k["last_modified"],k["file_format"]))
+                            name = None
+                            headers = None
+                            version = None
+                            size = None
+                            last_modified = None
+                            file_format = None
+
+                            if len(CachedKernelsList) > 0:
+                                sorted(CachedKernelsList)
+                                logger.info("Kernels cache data processed")
+                        else:
+                            logger.error("Cached file is invalid, remove it and try again")
+            else:
+                logger.error("Failed to read cache file")
+    except Exception as e:
+        logger.error("Exception in read_cache(): %s" % e)