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https://issues.apache.org/jira/browse/ARROW-7102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16970902#comment-16970902
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Antoine Pitrou commented on ARROW-7102:
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Hmm, so, to make sure there's no misunderstanding, we have been developing a
C++ filesystem layer that's pretty much functional now, with local, mock and S3
implementations.
There's also a Python wrapping layer for the C++ filesystem layer. It's in
{{pyarrow.fs}}, not {{pyarrow.filesystem}} which we now consider as legacy.
Going forward, two things could be useful:
* Make a {{fsspec}} wrapper for {{pyarrow.fs}}
* Make a {{pyarrow.fs}} wrapper for {{fsspec}}
You can find the C++ filesystem API doc here:
https://arrow.apache.org/docs/cpp/api/filesystem.html#_CPPv4N5arrow2fs10FileSystemE
The Python wrappers are not documented on the website yet. But there are
docstrings that you can also find here:
https://github.com/apache/arrow/blob/master/python/pyarrow/_fs.pyx#L172
> Make filesystem wrappers compatible with fsspec
> -----------------------------------------------
>
> Key: ARROW-7102
> URL: https://issues.apache.org/jira/browse/ARROW-7102
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Reporter: Tom Augspurger
> Priority: Major
> Labels: FileSystem
>
> [fsspec|https://filesystem-spec.readthedocs.io/en/latest] defines a common
> API for a variety filesystem implementations. I'm proposing a FSSpecWrapper,
> similar to S3FSWrapper, that works with any fsspec implementation.
>
> Right now, pyarrow has a pyarrow.filesystems.S3FSWrapper, which is specific
> to s3fs.
> [https://github.com/apache/arrow/blob/21ad7ac1162eab188a1e15923fb1de5b795337ec/python/pyarrow/filesystem.py#L320].
> This implementation could be removed entirely once an FSSPecWrapper is done,
> or kept as an alias if it's part of the public API.
>
> This is realted to ARROW-3717, which requested a GCSFSWrapper for working
> with google cloud storage.
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