blob: 10fa65886deb83fec407b8bd8c515a5d13d3f0f1 [file] [log] [blame]
// Copyright 2021 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef SRC_STORAGE_FSHOST_COPIER_H_
#define SRC_STORAGE_FSHOST_COPIER_H_
#include <lib/zx/status.h>
#include <filesystem>
#include <list>
#include <memory>
#include <string>
#include <variant>
#include <vector>
#include <fbl/unique_fd.h>
namespace fshost {
class Copier {
public:
struct File {
std::string name;
std::string contents;
};
struct Directory;
using DirectoryEntry = std::variant<File, Directory>;
using DirectoryEntries = std::list<DirectoryEntry>;
struct Directory {
std::string name;
DirectoryEntries entries;
};
// Reads all the data at |root_fd| except for the files and directories that match
// |excluded_paths|.
static zx::status<Copier> Read(fbl::unique_fd root_fd,
const std::vector<std::filesystem::path>& excluded_paths = {});
Copier() = default;
Copier(Copier&&) = default;
Copier& operator=(Copier&&) = default;
// Writes all data to the given root fd.
zx_status_t Write(fbl::unique_fd root_fd) const;
// Inserts a file into the in-memory structure creating parent directories as necessary.
// Returns an error if the file already exists or a directory could not be created because a file
// with the same name already exists.
zx::status<> InsertFile(const std::filesystem::path& path, std::string contents);
const DirectoryEntries& entries() const { return entries_; }
private:
DirectoryEntries entries_;
};
} // namespace fshost
#endif // SRC_STORAGE_FSHOST_COPIER_H_