Rework config and reload config on file change/creation/deletion (#663)

* add config.py and config_event_handler.py
also introduces the utils folder

* update config imports and variables

* add 'pyinotify' dependency

* config: check for changes using threading

* config: handle errors and new eventsx

* config: set_path even if file doesn't exist and make new ConfigParser on every update

* fix get_config call

* config: check for changes on moved file

* call notifier.start() manually to prevent hanging

* config: update comments

* battery: fix config imports

* config: fix config deletion detection

* Add load from user config in XDG_CONFIG_HOME if available (#672)

* Add load from user config from in XDG_CONFIG_HOME if available

This update introduces the flexibility to load the configuration file from
multiple locations, prioritizing user preferences and system standards.
Previously, the configuration was strictly read from a hardcoded
system path (`/etc/auto-cpufreq.conf`). Now, the application first checks if the
user has specified a configuration file path via command line arguments. If not,
it looks for a configuration file in the user's config
directory (`$XDG_CONFIG_HOME/auto-cpufreq/auto-cpufreq.conf`). If neither is
found, it defaults to the original system-wide configuration file.

This allows users to add their auto-cpufreq configuration to their dotfiles.

* If --config is set but invalid, exit with error

* Remove redundant empty string check on config file path

* Remove duplicate isfile check for config path

See also: #672 (comment)

* Update configuration options in README

See also: #672

* config: move find_config_file function and fix finding home directory

* auto_cpufreq: fix hanging on --daemon, --live, and --monitor

* swap pyinotify for patched version

---------

Co-authored-by: Steven Braun <steven.braun.mz@gmail.com>

README.md

@@ -284,7 +284,11 @@ See [`--force` flag](#overriding-governor) for more info.
 
 You can configure separate profiles for the battery and power supply. These profiles will let you pick which governor to use, as well as how and when turbo boost is enabled. The possible values for turbo boost behavior are `always`, `auto`, and `never`. The default behavior is `auto`, which only activates turbo during high load.
 
-By default, auto-cpufreq does not use the config file! If you wish to use it, the location where it needs to be placed to be read automatically is: `/etc/auto-cpufreq.conf`
+By default, auto-cpufreq does not use a config file. If you wish to configure auto-cpufreq statically, we look for a configuration file in the following order:
+
+1. Commandline argument: `--config <FILE>` if passed as commandline argument to `auto-cpufreq`
+2. User-specific configuration: `$XDG_CONFIG_HOME/auto-cpufreq/auto-cpufreq.conf`
+3. System-wide configuration: `/etc/auto-cpufreq.conf`
 
 #### Example config file contents
 ```python

auto_cpufreq/battery_scripts/battery.py

@@ -31,6 +31,7 @@ def battery_setup():
 
 
 def battery_get_thresholds():
+
     if lsmod("thinkpad_acpi"):
         thinkpad_print_thresholds()
 

auto_cpufreq/battery_scripts/ideapad_acpi.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 import os
 import subprocess
-from auto_cpufreq.core import get_config
+from auto_cpufreq.utils.config import config
 
 
 def set_battery(value, mode, bat):
@@ -14,9 +14,9 @@ def set_battery(value, mode, bat):
 
 def get_threshold_value(mode):
 
-    config = get_config()
-    if config.has_option("battery", f"{mode}_threshold"):
-        return config["battery"][f"{mode}_threshold"]
+    conf = config.get_config()
+    if conf.has_option("battery", f"{mode}_threshold"):
+        return conf["battery"][f"{mode}_threshold"]
     else:
         if mode == "start":
 
@@ -26,11 +26,11 @@ def get_threshold_value(mode):
 
 
 def ideapad_acpi_setup():
-    config = get_config()
+    conf = config.get_config()
 
-    if not config.has_option("battery", "enable_thresholds"):
+    if not conf.has_option("battery", "enable_thresholds"):
         return
-    if not config["battery"]["enable_thresholds"] == "true":
+    if not conf["battery"]["enable_thresholds"] == "true":
         return
 
     battery_count = len([name for name in os.listdir(

auto_cpufreq/battery_scripts/ideapad_laptop.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 import os
 import subprocess
-from auto_cpufreq.core import get_config
+from auto_cpufreq.utils.config import config
 
 
 def set_battery(value, mode, bat):
@@ -14,9 +14,9 @@ def set_battery(value, mode, bat):
 
 def get_threshold_value(mode):
 
-    config = get_config()
-    if config.has_option("battery", f"{mode}_threshold"):
-        return config["battery"][f"{mode}_threshold"]
+    conf = config.get_config()
+    if conf.has_option("battery", f"{mode}_threshold"):
+        return conf["battery"][f"{mode}_threshold"]
     else:
         if mode == "start":
             return 0
@@ -52,21 +52,21 @@ def check_conservation_mode():
 
 
 def ideapad_laptop_setup():
-    config = get_config()
+    conf = config.get_config()
 
-    if not config.has_option("battery", "enable_thresholds"):
+    if not conf.has_option("battery", "enable_thresholds"):
         return
-    if not config["battery"]["enable_thresholds"] == "true":
+    if not conf["battery"]["enable_thresholds"] == "true":
         return
 
     battery_count = len([name for name in os.listdir(
         "/sys/class/power_supply/") if name.startswith('BAT')])
 
-    if config.has_option("battery", "ideapad_laptop_conservation_mode"):
-        if config["battery"]["ideapad_laptop_conservation_mode"] == "true":
+    if conf.has_option("battery", "ideapad_laptop_conservation_mode"):
+        if conf["battery"]["ideapad_laptop_conservation_mode"] == "true":
             conservation_mode(1)
             return
-        if config["battery"]["ideapad_laptop_conservation_mode"] == "false":
+        if conf["battery"]["ideapad_laptop_conservation_mode"] == "false":
             conservation_mode(0)
 
     if check_conservation_mode() is False:

auto_cpufreq/battery_scripts/thinkpad.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 import os
 import subprocess
-from auto_cpufreq.core import get_config
+from auto_cpufreq.utils.config import config
 
 
 def set_battery(value, mode, bat):
@@ -14,9 +14,9 @@ def set_battery(value, mode, bat):
 
 def get_threshold_value(mode):
 
-    config = get_config()
-    if config.has_option("battery", f"{mode}_threshold"):
-        return config["battery"][f"{mode}_threshold"]
+    conf = config.get_config()
+    if conf.has_option("battery", f"{mode}_threshold"):
+        return conf["battery"][f"{mode}_threshold"]
     else:
         if mode == "start":
 
@@ -26,11 +26,11 @@ def get_threshold_value(mode):
 
 
 def thinkpad_setup():
-    config = get_config()
+    conf = config.get_config()
 
-    if not config.has_option("battery", "enable_thresholds"):
+    if not conf.has_option("battery", "enable_thresholds"):
         return
-    if not config["battery"]["enable_thresholds"] == "true":
+    if not conf["battery"]["enable_thresholds"] == "true":
         return
 
     battery_count = len([name for name in os.listdir(

auto_cpufreq/bin/auto_cpufreq.py

@@ -14,6 +14,7 @@
 from auto_cpufreq.core import *
 from auto_cpufreq.power_helper import *
 from auto_cpufreq.battery_scripts.battery import *
+from auto_cpufreq.utils.config import config as conf, find_config_file
 # cli
 @click.command()
 @click.option("--monitor", is_flag=True, help="Monitor and see suggestions for CPU optimizations")
@@ -28,7 +29,7 @@
 @click.option(
     "--config",
     is_flag=False,
-    default="/etc/auto-cpufreq.conf",
+    required=False,
     help="Use config file at defined path",
 )
 @click.option("--debug", is_flag=True, help="Show debug info (include when submitting bugs)")
@@ -40,9 +41,11 @@
 def main(config, daemon, debug, update, install, remove, live, log, monitor, stats, version, donate, force, get_state, completions):
 
     # display info if config file is used
+    config_path = find_config_file(config)
+    conf.set_path(config_path)
     def config_info_dialog():
-        if get_config(config) and hasattr(get_config, "using_cfg_file"):
-            print("\nUsing settings defined in " + config + " file")
+        if conf.has_config():
+            print("\nUsing settings defined in " + config_path + " file")
 
     # set governor override unless None or invalid
     if force is not None:
@@ -67,60 +70,58 @@ def config_info_dialog():
             if os.getenv("PKG_MARKER") == "SNAP" and dcheck == "enabled":
                 gnome_power_detect_snap()
                 tlp_service_detect_snap()
-                battery_setup()
-                while True:
-                    footer()
-                    gov_check()
-                    cpufreqctl()
-                    distro_info()
-                    sysinfo()
-                    set_autofreq()
-                    countdown(2)
             elif os.getenv("PKG_MARKER") != "SNAP":
                 gnome_power_detect()
                 tlp_service_detect()
-                battery_setup()
-                while True:
+            battery_setup()
+            conf.notifier.start()
+            while True:
+                try:
                     footer()
                     gov_check()
                     cpufreqctl()
                     distro_info()
                     sysinfo()
                     set_autofreq()
                     countdown(2)
-            else:
-                pass
-            #"daemon_not_found" is not defined
-                #daemon_not_found()
+                except KeyboardInterrupt:
+                    break;
+            conf.notifier.stop()
         elif monitor:
             config_info_dialog()
             root_check()
             print('\nNote: You can quit monitor mode by pressing "ctrl+c"')
             battery_setup()
             battery_get_thresholds()
+            conf.notifier.start()
             if os.getenv("PKG_MARKER") == "SNAP":
                 gnome_power_detect_snap()
                 tlp_service_detect_snap()
             else:
                 gnome_power_detect()
                 tlp_service_detect()
             while True:
-                time.sleep(1)
-                running_daemon_check()
-                footer()
-                gov_check()
-                cpufreqctl()
-                distro_info()
-                sysinfo()
-                mon_autofreq()
-                countdown(2)
+                try:
+                    time.sleep(1)
+                    running_daemon_check()
+                    footer()
+                    gov_check()
+                    cpufreqctl()
+                    distro_info()
+                    sysinfo()
+                    mon_autofreq()
+                    countdown(2)
+                except KeyboardInterrupt:
+                    break
+            conf.notifier.stop()
         elif live:
             root_check()
             config_info_dialog()
             print('\nNote: You can quit live mode by pressing "ctrl+c"')
             time.sleep(1)
             battery_setup()
             battery_get_thresholds()
+            conf.notifier.start()
             if os.getenv("PKG_MARKER") == "SNAP":
                 gnome_power_detect_snap()
                 tlp_service_detect_snap()
@@ -141,7 +142,8 @@ def config_info_dialog():
                 except KeyboardInterrupt:
                     gnome_power_start_live()
                     print("")
-                    sys.exit()
+                    break
+            conf.notifier.stop()
         elif stats:
             not_running_daemon_check()
             config_info_dialog()

auto_cpufreq/core.py

@@ -12,7 +12,6 @@
 import click
 import pickle
 import warnings
-import configparser
 # import pkg_resources
 import importlib.metadata
 from math import isclose
@@ -27,6 +26,7 @@
 
 sys.path.append("../")
 from auto_cpufreq.power_helper import *
+from auto_cpufreq.utils.config import config
 
 warnings.filterwarnings("ignore")
 
@@ -84,15 +84,6 @@ def file_stats():
     auto_cpufreq_stats_file = open(auto_cpufreq_stats_path, "w")
     sys.stdout = auto_cpufreq_stats_file
 
-def get_config(config_file=""):
-    if not hasattr(get_config, "config"):
-        get_config.config = configparser.ConfigParser()
-
-        if os.path.isfile(config_file):
-            get_config.config.read(config_file)
-            get_config.using_cfg_file = True
-
-    return get_config.config
 
 def get_override():
     if os.path.isfile(governor_override_state):
@@ -645,7 +636,7 @@ def set_frequencies():
     if not hasattr(set_frequencies, "min_limit"):
         set_frequencies.min_limit = int(getoutput(f"cpufreqctl.auto-cpufreq --frequency-min-limit"))
 
-    conf = get_config()
+    conf = config.get_config()
 
     for freq_type in frequency.keys():
         value = None
@@ -686,7 +677,7 @@ def set_frequencies():
 
 # set powersave and enable turbo
 def set_powersave():
-    conf = get_config()
+    conf = config.get_config()
     if conf.has_option("battery", "governor"):
         gov = conf["battery"]["governor"]
     else:
@@ -909,7 +900,7 @@ def mon_powersave():
 
 # set performance and enable turbo
 def set_performance():
-    conf = get_config()
+    conf = config.get_config()
     if conf.has_option("charger", "governor"):
         gov = conf["charger"]["governor"]
     else: