Add README section for GCS Fs

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Michalis Kargakis 2021-12-22 11:03:34 +01:00
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@ -259,6 +259,18 @@ system using InMemoryFile.
Afero has experimental support for secure file transfer protocol (sftp). Which can
be used to perform file operations over a encrypted channel.
### GCSFs
Afero has experimental support for Google Cloud Storage (GCS). You can either set the
`GOOGLE_APPLICATION_CREDENTIALS_JSON` env variable to your JSON credentials or use `opts` in
`NewGcsFS` to configure access to your GCS bucket.
Some known limitations of the existing implementation:
* No Chmod support - The GCS ACL could probably be mapped to *nix style permissions but that would add another level of complexity and is ignored in this version.
* No Chtimes support - Could be simulated with attributes (gcs a/m-times are set implicitly) but that's is left for another version.
* Not thread safe - Also assumes all file operations are done through the same instance of the GcsFs. File operations between different GcsFs instances are not guaranteed to be consistent.
## Filtering Backends
### BasePathFs