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libarchive Decompression Backend
This backend utilizes the libarchive library to support a wide variety of compression formats.
This backend is currently only supported on the Linux platform.
Using
Enable this backend by setting the DECOMPRESSION_BACKEND CMake option:
cmake -B build -DDECOMPRESSION_BACKEND=libarchive
Upon success, the application can be built as normal.
Limitations
- libarchive has a stream-based architecture that does not (currently) offer random access. In practice, this means that you can only seek forward and would have to re-open an archive to read an entry before the current position. This doesn't seem to have a huge performance hit and can be mitigated by creating properly sorted archives.
- 7z decompression is slow (but seems to be slightly faster than unarr)