Class FileInfo

src/attributes.cpp:49–106

Utility class for getting file existence and last modified time

    // Utility class for getting file existence and last modified time
    class FileInfo {
    public:

        // create from path
        explicit FileInfo(const std::string& path);

        // create from R list
        explicit FileInfo(const List& fileInfo) {		// #nocov start
            path_ = as<std::string>(fileInfo["path"]);
            exists_ = as<bool>(fileInfo["exists"]);
            lastModified_ = as<double>(fileInfo["lastModified"]);
        }							// #nocov end

        // convert to R list
        List toList() const {
            List fileInfo;
            fileInfo["path"] = path_;
            fileInfo["exists"] = exists_;
            fileInfo["lastModified"] = lastModified_;
            return fileInfo;
        }

        std::string path() const { return path_; }
        bool exists() const { return exists_; }
        double lastModified() const { return lastModified_; }

        std::string extension() const {
            std::string::size_type pos = path_.find_last_of('.');
            if (pos != std::string::npos)
                return path_.substr(pos);
            else
                return "";					// #nocov
        }

        bool operator<(const FileInfo& other) const {
            return path_ < other.path_;
        };

        bool operator==(const FileInfo& other) const {
            return path_ == other.path_ &&
                   exists_ == other.exists_ &&
                   lastModified_ == other.lastModified_;
        };

        bool operator!=(const FileInfo& other) const {
            return ! (*this == other);
        };

        std::ostream& operator<<(std::ostream& os) const {
            os << path_;
            return os;
        }

    private:
        std::string path_;
        bool exists_;
        double lastModified_;
    };