From a9b648f0292992a2face2c8d3622a75660561247 Mon Sep 17 00:00:00 2001
From: Daniel Langbein <daniel@systemli.org>
Date: Thu, 5 Oct 2023 18:15:36 +0200
Subject: [PATCH] feat: include configuration files in package

---
 setup.cfg                                     |  8 ++++++--
 src/de/p1st/monitor/cfg/singleton.py          | 20 +++++++++++++++----
 {cfg => src/de/p1st/monitor/data}/yodaNas.ini |  0
 {cfg => src/de/p1st/monitor/data}/yodaTux.ini |  0
 4 files changed, 22 insertions(+), 6 deletions(-)
 rename {cfg => src/de/p1st/monitor/data}/yodaNas.ini (100%)
 rename {cfg => src/de/p1st/monitor/data}/yodaTux.ini (100%)

diff --git a/setup.cfg b/setup.cfg
index a005559..87a0a42 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -21,14 +21,18 @@ classifiers =
     Operating System :: Unix
 
 [options]
+packages = find:
 package_dir =
     = src
-packages = find:
-python_requires = >=3.6.9
+include_package_data = True
+python_requires = >=3.10.0
 
 [options.packages.find]
 where = src
 
+[options.package_data]
+de.p1st.monitor = data/*.ini
+
 [options.entry_points]
 ; https://setuptools.readthedocs.io/en/latest/userguide/entry_point.html
 console_scripts=
diff --git a/src/de/p1st/monitor/cfg/singleton.py b/src/de/p1st/monitor/cfg/singleton.py
index c20d4a1..94a8fd1 100644
--- a/src/de/p1st/monitor/cfg/singleton.py
+++ b/src/de/p1st/monitor/cfg/singleton.py
@@ -2,22 +2,34 @@
 # -*- coding: utf-8 -*-
 import configparser
 from pathlib import Path
+import importlib.resources as importlib_resources
 
 _cfg: configparser.ConfigParser | None = None
 
 
 def init_cfg(config_file: Path = None):
     global _cfg
-
     if _cfg is not None:
-        raise ValueError('already initialized')
+        raise ValueError('Already initialized.')
 
+    # Use the given config file.
+
+    # Otherwise, use config file from /etc/de-p1st-monitor/.
     if config_file is None:
         import socket
-        hostname = socket.gethostname()
+        hostname: str = socket.gethostname()
         config_file = Path(f'/etc/de-p1st-monitor/{hostname}.ini')
+        if not config_file.is_file():
+            config_file = None
 
-    if not config_file.exists():
+    # Otherwise, use packaged config file.
+    if config_file is None:
+        pkg = importlib_resources.files('de.p1st.monitor')
+        config_file = pkg / 'data' / f'{hostname}.ini'
+        if not config_file.is_file():
+            config_file = None
+
+    if config_file is None or not config_file.is_file():
         raise Exception(f'Configuration file does not exist! {config_file}')
 
     _cfg = configparser.ConfigParser()
diff --git a/cfg/yodaNas.ini b/src/de/p1st/monitor/data/yodaNas.ini
similarity index 100%
rename from cfg/yodaNas.ini
rename to src/de/p1st/monitor/data/yodaNas.ini
diff --git a/cfg/yodaTux.ini b/src/de/p1st/monitor/data/yodaTux.ini
similarity index 100%
rename from cfg/yodaTux.ini
rename to src/de/p1st/monitor/data/yodaTux.ini