GCSFS and FUSE¶
Warning, this functionality is experimental
FUSE is a mechanism to mount user-level filesystems in unix-like systems (linux, osx, etc.). GCSFS is able to use FUSE to present remote data/keys as if they were a directory on your local file-system. This allows for standard shell command manipulation, and loading of data by libraries that can only handle local file-paths (e.g., netCDF/HDF5).
In addition to a standard installation of GCSFS, you also need:
libfuse as a system install. The way to install this will depend on your OS. Examples include
sudo apt-get install fuse,
sudo yum install fuseand download from osxfuse.
fusepy, which can be installed via conda or pip
pandas, which can also be installed via conda or pip (this library is used only for its timestring parsing.
FUSE functionality is available via the
fsspec.fuse module. See the
docstrings for further details.
gcs = gcsfs.GCSFileSystem(..) from fsspec.fuse import run run(gcs, "bucket/path", "local/path", foreground=True, threads=False)
This functionality is experimental. The command usage may change, and you should expect exceptions.
although mutation operations tentatively work, you should not at the moment depend on gcsfuse as a reliable system that won’t loose your data.
permissions on GCS are complicated, so all files will be shown as fully-open 0o777, regardless of state. If a read fails, you likely don’t have the right permissions.