file_info_with_data.hpp

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#pragma once
 
/// @file userver/fs/file_info_with_data.hpp
/// @brief data structures to store file info with load data
 
#include <filesystem>
#include <memory>
#include <string>
#include <unordered_map>
#include <variant>
 
USERVER_NAMESPACE_BEGIN
 
/// @brief filesystem support
namespace fs {
 
/// @brief Struct file with load data
///
/// `data_or_path` holds either file contents (`std::string`) or a full path to the file
/// (`std::filesystem::path`) when the file is too large to cache in memory.
struct FileInfoWithData {
    std::variant<std::string, std::filesystem::path> data_or_path;
    std::string extension;
};
 
using FileInfoWithDataConstPtr = std::shared_ptr<const FileInfoWithData>;
using FileInfoWithDataMap = std::unordered_map<std::string, FileInfoWithDataConstPtr>;
 
}  // namespace fs
 
USERVER_NAMESPACE_END