modules now can access config entries in a new conf.d dir pulled by DPM core (ini file format)

2025-03-02 00:29:26 -05:00
parent 6220653d10
commit 299b8dd989
17 changed files with 775 additions and 138 deletions
--- a/include/ConfigManager.hpp
+++ b/include/ConfigManager.hpp
@@ -0,0 +1,88 @@
+/**
+ * @file ConfigManager.hpp
+ * @brief Configuration management system for the DPM utility
+ *
+ * Defines the ConfigManager class which is responsible for loading, parsing,
+ * and providing access to configuration values from INI-style files in the
+ * /etc/dpm/conf.d/ directory. Supports the configuration needs of both the
+ * DPM core and its modules.
+ *
+ * @copyright Copyright (c) 2025 SILO GROUP LLC
+ * @author Chris Punches <chris.punches@silogroup.org>
+ *
+ * Part of the Dark Horse Linux Package Manager (DPM)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * For bug reports or contributions, please contact the dhlp-contributors
+ * mailing list at: https://lists.darkhorselinux.org/mailman/listinfo/dhlp-contributors
+ */
+
+#pragma once
+
+#include <string>
+#include <map>
+#include <vector>
+#include <filesystem>
+#include <fstream>
+#include <iostream>
+#include <algorithm>
+#include <cstdlib>
+#include <optional>
+#include <string.h>
+#include <dirent.h>
+
+class ConfigManager {
+    public:
+        // Constructor
+        ConfigManager(const std::string& config_dir = "/etc/dpm/conf.d/");
+
+        // Load all configuration files from the config directory
+        bool loadConfigurations();
+
+        // Get configuration values with type conversion
+        const char* getConfigValue(const char* section, const char* key) const;
+        std::string getConfigString(const char* section, const char* key, const std::string& defaultValue = "") const;
+        int getConfigInt(const char* section, const char* key, int defaultValue = 0) const;
+        double getConfigDouble(const char* section, const char* key, double defaultValue = 0.0) const;
+        bool getConfigBool(const char* section, const char* key, bool defaultValue = false) const;
+
+        // Check if configuration directory exists
+        bool configDirExists() const;
+
+        // Check if a configuration key exists
+        bool hasConfigKey(const char* section, const char* key) const;
+
+    private:
+        // Default section name to use when none is specified
+        static constexpr const char* DEFAULT_SECTION = "MAIN";
+
+        // Parse a single configuration file
+        bool parseConfigFile(const std::filesystem::path& config_file);
+
+        // Trim whitespace from a string
+        std::string trimWhitespace(const std::string& str) const;
+
+        // Find a key in the given section or in the default section
+        std::optional<std::reference_wrapper<const std::string>> findConfigValue(const std::string& section, const std::string& key) const;
+
+        // Configuration directory path
+        std::string _config_dir;
+
+        // Configuration data structure: section -> key -> value
+        std::map<std::string, std::map<std::string, std::string>> _config_data;
+};
+
+// Global configuration manager instance
+extern ConfigManager g_config_manager;