[CONFIG] Implements entries_color validation

> closes #160

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project (partially) adheres to [Semantic Versioning](https://semver.org
 ## [Unreleased]
 ### Added
 - Python 3.13 & 3.14 official support
+- `entries_color` config option validation
 
 ## [v4.15.0.0] - 2024-09-30
 ### Added

archey/colors.py

@@ -9,7 +9,8 @@
 from archey.environment import Environment
 
 # REGEXP compiled pattern matching ANSI/ECMA-48 color escape codes.
-ANSI_ECMA_REGEXP = re.compile(r"\x1b\[\d+(?:(?:;\d+)+)?m")
+ANSI_TEXT_CODES_REGEXP = re.compile(r"\d+(?:(?:;\d+)+)?")
+ANSI_ECMA_REGEXP = re.compile(rf"\x1b\[{ANSI_TEXT_CODES_REGEXP.pattern}m")
 
 
 class Style:

archey/configuration.py

@@ -6,6 +6,7 @@
 from copy import deepcopy
 from typing import Any, Dict
 
+from archey.colors import ANSI_TEXT_CODES_REGEXP
 from archey.singleton import Singleton
 from archey.utility import Utility
 
@@ -51,6 +52,9 @@ def __init__(self, config_path=None):
             self._load_configuration(os.path.expanduser("~/.config/archey4/"))
             self._load_configuration(os.getcwd())
 
+        # Perform various validations
+        self._validate_configuration()
+
     def get(self, key: str, default=None) -> Any:
         """
         A binding method to imitate the `dict.get()` behavior.
@@ -90,6 +94,19 @@ def _load_configuration(self, path: str) -> None:
             logging.ERROR if self.get("suppress_warnings") else logging.WARN
         )
 
+    def _validate_configuration(self) -> None:
+        # entries_color
+        entries_color = self._config.get("entries_color")
+        if entries_color:
+            if (
+                not isinstance(entries_color, str)
+                or ANSI_TEXT_CODES_REGEXP.fullmatch(entries_color) is None
+            ):
+                logging.warning(
+                    "Couldn't validate 'entries_color' configuration option value, ignoring..."
+                )
+                self._config["entries_color"] = DEFAULT_CONFIG["entries_color"]
+
     def __iter__(self):
         """When used as an iterator, directly yield `_config` elements"""
         return iter(self._config.items())

archey/test/test_archey_configuration.py

@@ -132,6 +132,45 @@ def test_load_configuration(self):
                 },
             )
 
+    @patch(
+        # `_load_configuration` method is mocked to "ignore" local system configurations.
+        "archey.configuration.Configuration._load_configuration",
+        Mock(),
+    )
+    def test_validate_configuration(self):
+        """Test configuration option values validation"""
+        configuration = Configuration()
+
+        # OK
+        with patch.dict(
+            configuration._config,  # pylint: disable=protected-access
+            {
+                "entries_color": "0;1;2",
+            },
+        ):
+            configuration._validate_configuration()  # pylint: disable=protected-access
+            self.assertEqual(configuration.get("entries_color"), "0;1;2")
+
+        # KO
+        with patch.dict(
+            configuration._config,  # pylint: disable=protected-access
+            {
+                "entries_color": True,
+            },
+        ):
+            configuration._validate_configuration()  # pylint: disable=protected-access
+            self.assertEqual(configuration.get("entries_color"), "")
+
+        # KO
+        with patch.dict(
+            configuration._config,  # pylint: disable=protected-access
+            {
+                "entries_color": "true",
+            },
+        ):
+            configuration._validate_configuration()  # pylint: disable=protected-access
+            self.assertEqual(configuration.get("entries_color"), "")
+
     def test_instantiation_config_path(self):
         """Test for configuration loading from specific user-defined path"""
         with tempfile.TemporaryDirectory() as temp_dir: