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common/util/CMakeLists.txt

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+add_library(common_util
+        SHARED
+        FileUtil.cpp)
+
+target_link_libraries(common_util fmt)

common/util/FileUtil.cpp

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+#include "FileUtil.h"
+#include <iostream>
+#include <filesystem>
+
+std::string FileUtil::get_file_path(std::string input[]) {
+    int arrSize = std::sizeof(input);
+    std::string currentPath = std::filesystem::current_path();
+    char dirSeparator;
+
+    #ifdef _WIN32
+        dirSeparator = '\';
+    #else
+        dirSeparator = '/';
+    #endif
+
+    std::string filePath = currentPath;
+    for (int i = 0; i < arrSize; i++) {
+        if (arrSize = i+1) {
+            filePath = filePath << input[i];
+        } else {
+            filePath = filePath << input[i] << dirSeparator;
+        }
+    }
+
+    return filePath;
+}

common/util/FileUtil.h

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+#pragma once
+#include <string>
+
+namespace FileUtil
+{
+	class FileUtil
+	{
+	public:
+        std::string get_file_path();
+	};
+}