Preserve file permissions when extracting runfiles zip

In Python rules, the Python stub script is responsible for extracting the runfiles from the zip file when --build_python_zip is used. However, there's a bug in the standard Python library (https://bugs.python.org/issue15795) that causes file permissions to be lost when extracting zips. This causes runfiles to not be marked executable, which is a problem when the py_runtime is an in-build runtime (issue #5104).

This change updates the stub script to workaround the bug by directly chmodding extracted files with their intended mode. It also adds a regression test combining a custom py_runtime with --build_python_zip.

Fixes #5104, unblocks #7375.

RELNOTES: Fixed an issue where some `py_runtime`s were incompatible with using `--build_python_zip` (#5104).
PiperOrigin-RevId: 246195931
2 files changed
tree: 5874297bc0091fd8ce40d7ea874ce92ed146d549
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .bazelrc
  9. .gitattributes
  10. .gitignore
  11. AUTHORS
  12. BUILD
  13. CHANGELOG.md
  14. CODEOWNERS
  15. combine_distfiles.py
  16. combine_distfiles_to_tar.sh
  17. compile.sh
  18. CONTRIBUTING.md
  19. CONTRIBUTORS
  20. distdir.bzl
  21. ISSUE_TEMPLATE.md
  22. LICENSE
  23. README.md
  24. WORKSPACE
README.md

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