mirror of
https://github.com/revng/revng
synced 2026-06-21 14:07:57 +00:00
Giacomo Vercesi
1aa9c61c31
When saving to disk, `LocalStorageClient` will also save a file named `file_list.yml` which will list the list of files, which is needed for downstream save handlers to efficently save.
63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
#pragma once
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//
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// This file is distributed under the MIT License. See LICENSE.md for details.
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//
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#include "llvm/ADT/StringMap.h"
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#include "revng/Storage/StorageClient.h"
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namespace revng {
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class LocalStorageClient : public StorageClient {
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public:
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struct File {
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/// TransactionIndex when the file was last written by the Client, if the
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/// value is '0' then the file existed before the Client was created.
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uint64_t Index = 0;
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/// Content Encoding of the file, this is used downstream.
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ContentEncoding Encoding = ContentEncoding::None;
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};
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struct FileMetadata {
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/// Index of the commit that will be written when calling the `commit`
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/// method of this class. Increases by one every time `commit()` is called.
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uint64_t TransactionIndex = 1;
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/// Map that stores the state of the files managed by this StorageClient. It
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/// records the last TransactionIndex the files were written and the
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/// encoding used.
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llvm::StringMap<File> Files;
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};
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private:
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std::string Root;
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FileMetadata Metadata;
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public:
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LocalStorageClient(llvm::StringRef Root);
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~LocalStorageClient() override = default;
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llvm::Expected<PathType> type(llvm::StringRef Path) override;
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llvm::Error createDirectory(llvm::StringRef Path) override;
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llvm::Error remove(llvm::StringRef Path) override;
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llvm::sys::path::Style getStyle() const override;
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llvm::Error copy(llvm::StringRef Source,
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llvm::StringRef Destination) override;
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llvm::Expected<std::unique_ptr<ReadableFile>>
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getReadableFile(llvm::StringRef Path) override;
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llvm::Expected<std::unique_ptr<WritableFile>>
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getWritableFile(llvm::StringRef Path, ContentEncoding Encoding) override;
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llvm::Error commit() override;
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private:
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std::string dumpString() const override;
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std::string resolvePath(llvm::StringRef Path);
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};
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} // namespace revng
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