vicennial opened a new pull request, #48003:
URL: https://github.com/apache/spark/pull/48003
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### What changes were proposed in this pull request?
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In the `ArtifactManager`, the `remoteRelativePath` is normalized to replace
both frontslashes(`/`, posix style) and backslashes(`/`, windows style) to
`File.separator` which chooses the correct separator based on the system the
server is running in.
### Why are the changes needed?
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1. If you propose a new API, clarify the use case for a new API.
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The change is required to support cross-environment compatibility between
client and server. For example, Windows-based Python client users are forced to
set `os.path = posixpath` to have the client send artifact paths in POSIX
style.
Without the above workaround, if the client were to send an artifact with
the name `pyfiles\abc.txt` to the posix-based server, then the artifact would
be written out as `<aritfact_directory>/pyfiles\abc.txt` (where
`pyfiles\abc.txt` is the file name) instead of the correct
`<artifact_directory>/pyfiles/abc.txt` (where `abc.txt` is the filename)
### Does this PR introduce _any_ user-facing change?
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Yes, it fixes a bug for Windows-based clients.
Example, python client users were forced to use the following as a
workaround:
```python
import posixpath
# Backup the original os.path module to restore later
original_os_path = os.path
# Temporarily replace os.path with posixpath to ensure POSIX-compatible path
handling
# This is necessary on Windows to work with POSIX-style paths expected by
Spark
os.path = posixpath
spark.addArtifact("./dummy_file.py", pyfile=True)
# Restore the original os.path module after the operation
os.path = original_os_path
```
New usage:
```python
spark.addArtifact(".\dummy_file.py", pyfile=True)
```
A posix-based server would automatically handle the above windows-based path.
### How was this patch tested?
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Unit test
### Was this patch authored or co-authored using generative AI tooling?
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No
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