tree f9fc1110679b52585b9709829bed0a035a858ab9
parent cf594f780c91f13d48e77faad34df48ac57398da
author yushan26 <107004874+yushan26@users.noreply.github.com> 1761073949 -0700
committer GitHub <noreply@github.com> 1761073949 +0000
gpgsig -----BEGIN PGP SIGNATURE-----
 
 wsFcBAABCAAQBQJo99suCRC1aQ7uu5UhlAAAuG4QAGUYrqBffi0AMMCJX3eIX01D
 5364tzIKK2jrRIDNwMmbWa44cacSLKYC99eSkrrVKEuPqVS+Z/nL/hWW6f3KjySk
 AW3SVV2dvyzKKrPETeqxDWlR327/US4jidpixGS5E5katTwQwp1t9TUJX42dzjil
 hiTGt0cZnwCqZvdWP8AfmFWLRRNB8NVUPPoffwSKWtr4HmxJ3lXCvi2pG/Bp9Kmk
 /WtetIZvkFsB4BPH0bG+kLFs8X+tDFBM7Fi9CkYhFL2eJ/VUHtj/+tZ+pgfrCaf0
 m9QpohDzMfQX96/yZRqNob+2nrZ59Rlo/HR00TBahV9lq9jWnlM1QguB9GhoCbvb
 8QwcsNBTcWnUStarcxLftWyymq0YTU8Pqw/E6o+qrAL1omfw1R4eaTqMGVqKs49b
 j/803ExDv9l2f+8cD7OwKDICOk0dx5uEbMzq36YnImmoHtJJd0BZZi2+CXn9GhwV
 PNjHoiYSSgXtPjLC9yu+2c6M3hx4mogbXUa1OOGB4nS0VGs+/CmrYXaKfr3tAm2w
 dHEgzmUmXRDiiTIOqUmRgmR/V39zKvtq00avWP8wD703AI1VsZMCZ3h/MAxw68kv
 iiWOB3Jp9atxUVtq450CPaVioJBeiB96QKtROUqrDzsFp5AvqjSbp4yMVGHuOOGr
 ow+Og4r/vQKqHf4/JtzO
 =BDSh
 -----END PGP SIGNATURE-----
 

fix(gazelle) Delete python targets with invalid srcs (#3046)

When running Gazelle, it generated the following target:
```
py_binary(
    name = "remove_py_binary",
    srcs = ["__main__.py"],
    main = "__main__.py",
    visibility = ["//visibility:public"],
)
```
After `__main__.py` was deleted and the change committed, re-running
Gazelle did not remove the file from the srcs list.
This change introduces logic to check whether all entries in a Python
target’s srcs attribute correspond to valid files. If none of them
exist, the target is added to result.Empty to signal that it should be
cleaned up. This cleanup behavior applies to when python_generation mode
is package or file, as all `srcs` are expected to reside directly within
the current directory.

---------

Co-authored-by: yushan <yushan@uber.com>
Co-authored-by: Douglas Thor <dougthor42@users.noreply.github.com>