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Go-FUSE

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Go native bindings for the FUSE kernel module.

Use github.com/hanwen/go-fuse/v2/fs library. It follows the wire protocol closely, but provides convenient abstractions for building both node and path based file systems

Release notes

v2.7

  • fuse, fs: support STATX

v2.6

  • general:
    • drop support for go1.16
  • fuse:
    • FreeBSD support
    • passthrough support for increased performance
    • DirEntryList.Offset and DirEntry.Off are visible now; add DirEntry.Parse
  • fs:
    • new directory API, supporting caching and file handles for Readdir and FsyncDir
    • passthrough support for increased performance
    • allow LoopbackNode to be used as non-root
    • OnForget method

v2.5

  • Support for RenameExchange on Darwin

Comparison with other FUSE libraries

Further highlights of this library is

  • Comprehensive and up to date protocol support (up to 7.12.28).

  • Performance that is competitive with libfuse.

Examples

  • example/hello/ contains a 60-line "hello world" filesystem

  • zipfs/zipfs contains a small and simple read-only filesystem for zip and tar files. The corresponding command is in example/zipfs/ For example,

    mkdir /tmp/mountpoint
    example/zipfs/zipfs /tmp/mountpoint file.zip &
    ls /tmp/mountpoint
    fusermount -u /tmp/mountpoint
  • zipfs/multizipfs shows how to use combine simple Go-FUSE filesystems into a larger filesystem.

  • example/loopback mounts another piece of the filesystem. Functionally, it is similar to a symlink. A binary to run is in example/loopback/ . For example

    mkdir /tmp/mountpoint
    example/loopback/loopback -debug /tmp/mountpoint /some/other/directory &
    ls /tmp/mountpoint
    fusermount -u /tmp/mountpoint

macOS Support

The main developer (hanwen@) does not own a Mac to test, but accepts patches to make Go-FUSE work on Mac.

  • All of the limitations of OSXFUSE, including lack of support for NOTIFY.

  • OSX issues STATFS calls continuously (leading to performance concerns).

  • OSX has trouble with concurrent reads from the FUSE device, leading to performance concerns.

  • Tests are expected to pass; report any failure as a bug!

Credits

Bugs

Report them through https://github.com/hanwen/go-fuse/issues. Please include a debug trace (set fuse.MountOptions.Debug to true).

License

Like Go, this library is distributed under the new BSD license. See accompanying LICENSE file.