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/** |
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* This file is part of the CernVM File System |
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* |
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* This file defines a class which derives `SyncUnion` |
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* to provide support for AUFS |
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* |
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*/ |
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#ifndef CVMFS_SYNC_UNION_AUFS_H_ |
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#define CVMFS_SYNC_UNION_AUFS_H_ |
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#include "sync_union.h" |
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#include <set> |
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#include <string> |
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namespace publish { |
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/** |
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* Syncing a cvmfs repository by the help of an overlaid AUFS |
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* read-write volume. |
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*/ |
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class SyncUnionAufs : public SyncUnion { |
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public: |
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SyncUnionAufs(SyncMediator *mediator, const std::string &rdonly_path, |
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const std::string &union_path, const std::string &scratch_path); |
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void Traverse(); |
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✗ |
bool SupportsHardlinks() const { return true; } |
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protected: |
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bool IsWhiteoutEntry(SharedPtr<SyncItem> entry) const; |
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bool IsOpaqueDirectory(SharedPtr<SyncItem> directory) const; |
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bool IgnoreFilePredicate(const std::string &parent_dir, |
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const std::string &filename); |
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std::string UnwindWhiteoutFilename(SharedPtr<SyncItem> entry) const; |
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private: |
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std::set<std::string> ignore_filenames_; |
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std::string whiteout_prefix_; |
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}; // class SyncUnionAufs |
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} // namespace publish |
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#endif // CVMFS_SYNC_UNION_AUFS_H_ |
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