fix: correctly obtain relative path required for the venv created by `--bootstrap_impl=script` (#2439)

Computing the relative path from the venv interpreter to the underlying
interpreter was
incorrectly using the actual interpreter's directory depth, not the venv
interpreter's
directory depth, when computing the distance from the venv interpreter
to the runfiles root.
The net effect is the correct relative path would only be computed for
binaries with
the same directory depth as the actual interpreter (e.g. 2).

This went undetected in CI because the tests for this logic just happen
to have the
same directory depth as the actual interpreter used.

To fix, compute the relative path to the runfiles root using the venv
interpreter
directory. Also added a test in a more nested directory to test this
case.

Along the way:
* Change relative path computation to compute a minimum relative path.
* Fix the internals to pass a runfiles-root relative path, not main-repo
relative path,
  for the actual interpreter, as intended.


Fixes https://github.com/bazelbuild/rules_python/issues/2169

---------

Co-authored-by: Richard Levasseur <rlevasseur@google.com>
Co-authored-by: Richard Levasseur <richardlev@gmail.com>
Co-authored-by: Ignas Anikevicius <240938+aignas@users.noreply.github.com>
6 files changed
tree: c2b07c13d9c50f42da45cbe7748b7d4d1c72a7cc
  1. .bazelci/
  2. .bcr/
  3. .ci/
  4. .github/
  5. docs/
  6. examples/
  7. gazelle/
  8. private/
  9. python/
  10. sphinxdocs/
  11. tests/
  12. third_party/
  13. tools/
  14. .bazelignore
  15. .bazelrc
  16. .bazelversion
  17. .git-blame-ignore-revs
  18. .gitattributes
  19. .gitignore
  20. .pre-commit-config.yaml
  21. .readthedocs.yml
  22. addlicense.sh
  23. AUTHORS
  24. BUILD.bazel
  25. BZLMOD_SUPPORT.md
  26. CHANGELOG.md
  27. CONTRIBUTING.md
  28. CONTRIBUTORS
  29. DEVELOPING.md
  30. internal_dev_deps.bzl
  31. internal_dev_setup.bzl
  32. LICENSE
  33. MODULE.bazel
  34. README.md
  35. version.bzl
  36. WORKSPACE
  37. WORKSPACE.bzlmod
README.md

Python Rules for Bazel

Build status

Overview

This repository is the home of the core Python rules -- py_library, py_binary, py_test, py_proto_library, and related symbols that provide the basis for Python support in Bazel. It also contains package installation rules for integrating with PyPI and other indices.

Documentation for rules_python is at https://rules-python.readthedocs.io and in the Bazel Build Encyclopedia.

Examples live in the examples directory.

The core rules are stable. Their implementation is subject to Bazel's backward compatibility policy. This repository aims to follow semantic versioning.

The Bazel community maintains this repository. Neither Google nor the Bazel team provides support for the code. However, this repository is part of the test suite used to vet new Bazel releases. See How to contribute page for information on our development workflow.

Documentation

For detailed documentation, see https://rules-python.readthedocs.io

Bzlmod support

  • Status: Beta
  • Full Feature Parity: No

See Bzlmod support for more details.