add move ctor and const ref metadata getter

src/impl/autotierfs/file.cpp

@@ -68,6 +68,16 @@ File::File(const File &other)
 	, db_(other.db_)
 	, metadata_(other.metadata_) {}
 
+File::File(File &&other)
+	: size_(std::move(other.size_))
+	, tier_ptr_(std::move(other.tier_ptr_))
+	, times_{ std::move(other.times_[0]), std::move(other.times_[1]) }
+	, atime_(std::move(other.atime_))
+	, ctime_(std::move(other.ctime_))
+	, relative_path_(std::move(other.relative_path_))
+	, db_(std::move(other.db_))
+	, metadata_(std::move(other.metadata_)) {}
+
 File::~File() {}
 
 void File::update_db() {
@@ -138,3 +148,8 @@ void File::change_path(const fs::path &new_path) {
 	metadata_.update(new_path.string(), db_, &old_path);
 	relative_path_ = new_path;
 }
+
+
+const Metadata &File::metadata(void) const {
+	return metadata_;
+}

src/incl/file.hpp

@@ -53,6 +53,12 @@ class File {
 	 * @param other
 	 */
 	File(const File &other);
+	/**
+	 * @brief Move cnstruct a new File object
+	 * 
+	 * @param other 
+	 */
+	File(File &&other);
 	/**
 	 * @brief Destroy the File object
 	 * Calls metadata.update(relative_path_.c_str(), db_)
@@ -143,6 +149,12 @@ class File {
 	 * @param new_path
 	 */
 	void change_path(const fs::path &new_path);
+	/**
+	 * @brief Return const reference to metadata_
+	 * 
+	 * @return const Metadata& 
+	 */
+	const Metadata &metadata(void) const;
 private:
 	ffd::Bytes size_; ///< Size of file on disk
 	Tier *tier_ptr_;  ///< Pointer to Tier object representing the tier containing this file.