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// Copyright 2018 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 ZIRCON_TOOLS_BLOBFS_BLOBFS_H_
#define ZIRCON_TOOLS_BLOBFS_BLOBFS_H_
#include <lib/fit/defer.h>
#include <vector>
#include <fbl/array.h>
#include <fbl/vector.h>
#include <fs-host/common.h>
#include "src/lib/digest/digest.h"
#include "src/storage/blobfs/blob_layout.h"
#include "src/storage/blobfs/host.h"
class BlobfsCreator : public FsCreator {
public:
BlobfsCreator() : FsCreator(blobfs::kMinimumDataBlocks) {}
private:
// Parent overrides:
zx_status_t Usage() override;
const char* GetToolName() override { return "blobfs"; }
bool IsCommandValid(Command command) override;
bool IsOptionValid(Option option) override;
bool IsArgumentValid(Argument argument) override;
// Identify blobs to be operated on, populating the internal
// |blob_list_|.
zx_status_t ProcessManifestLine(FILE* manifest, const char* dir_path) override;
zx_status_t ProcessCustom(int argc, char** argv, uint8_t* processed) override;
// Calculates merkle trees for the processed blobs, and determines
// the total size of the underlying storage necessary to contain them.
zx_status_t CalculateRequiredSize(off_t* out) override;
// TODO(planders): Add ls support for blobfs.
zx_status_t Mkfs() override;
zx_status_t Fsck() override;
zx_status_t UsedDataSize() override;
zx_status_t UsedInodes() override;
zx_status_t UsedSize() override;
zx_status_t Add() override;
// A comparison function used to quickly compare BlobInfo.
struct DigestCompare {
inline bool operator()(const blobfs::BlobInfo& lhs, const blobfs::BlobInfo& rhs) const {
return lhs.GetDigest() < rhs.GetDigest();
}
};
// List of all blobs to be copied into blobfs.
std::vector<std::filesystem::path> blob_list_;
// A list of Blob Information for blobs in |blob_list_|.
std::vector<blobfs::BlobInfo> blob_info_list_;
// The format blobfs should use to store blobs.
blobfs::BlobLayoutFormat blob_layout_format_ = blobfs::BlobLayoutFormat::kCompactMerkleTreeAtEnd;
// The number of inodes required in the resultant blobfs image.
uint64_t required_inodes_ = 0;
};
#endif // ZIRCON_TOOLS_BLOBFS_BLOBFS_H_