#724 feat: allow with_source_file to accept a list of paths Pull request opened by AdilFayyaz Summary

with_source_file

previously accepted only a single Path. This PR extends it to also accept a

List[Path]

, where each file becomes its own COPY layer in the image - equivalent to chaining multiple

with_source_file

calls. A ValueError is raised eagerly if two paths in the list share the same filename at the same destination, preventing silent overwrites in the Dockerfile. Test Plan •

pytest tests/flyte/test_image.py -k "test_with_source"

passes • Single Path argument still works (backward-compatible) •

[Path("a/x.py"), Path("b/x.py")]

raises ValueError with message mentioning "Multiple files with the same name would overwrite each other at destination [dst]" •

[Path("a.py"), Path("b.py")]

produces two separate CopyConfig layers in the correct order flyteorg/flyte-sdk