chore: minor adjustments

src/core/common/utils.cpp

@@ -0,0 +1,56 @@
+#include "utils.hpp"
+#include <filesystem>
+#include <iostream>
+
+namespace clrsync::core
+{
+void print_color_keys()
+{
+    for (const auto &key : clrsync::core::COLOR_KEYS)
+    {
+        std::cout << key << std::endl;
+    }
+}
+
+std::string get_default_config_path()
+{
+    const char *env_path = std::getenv("CLRSYNC_CONFIG_PATH");
+    if (env_path && env_path[0] != '\0')
+        return normalize_path(env_path).string();
+
+    std::filesystem::path home = normalize_path("~");
+    std::filesystem::path config_path = home / ".config" / "clrsync" / "config.toml";
+    return config_path.string();
+}
+
+std::string expand_user(const std::string &path)
+{
+    if (path.empty() || path[0] != '~')
+        return path;
+
+    if (path.length() == 1 || path[1] == '/' || path[1] == '\\')
+    {
+#ifdef _WIN32
+        const char *home = std::getenv("USERPROFILE");
+#else
+        const char *home = std::getenv("HOME");
+#endif
+        if (!home)
+            return path;
+
+        if (path.length() == 1)
+            return std::string(home);
+
+        return std::string(home) + path.substr(1);
+    }
+    return path;
+}
+
+std::filesystem::path normalize_path(const std::string &path)
+{
+    std::string expanded = expand_user(path);
+    std::filesystem::path fs_path(expanded);
+    return fs_path.lexically_normal();
+}
+
+} // namespace clrsync::core