Exit collect_coverage.sh early if LCOV_MERGER is not set.

Rules that provide InstrumentedFilesInfo but do not define the
_lcov_merger attribute will result in this script being called without
the required LCOV_MERGER environment variable being set.

Since _all_ rules now provide an InstrumentedFilesInfo provider by
default, but are not required to provide the attribute, this scenario
will be encountered far more frequently and should not be an error.

Because of the way coverage collection within Google differs to Bazel,
it isn't safe to change TestActionBuilder to simply not prepare the
collect_coverage.sh script the way it would if no coverage was to be
collected, so we have to change the script itself.

Fixes #13978

Closes #14352.

PiperOrigin-RevId: 413369871
3 files changed
tree: e58043eda7ed709b2c1bec10e90d0e3ee5cdee86
  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. CODE_OF_CONDUCT.md
  15. CODEBASE.md
  16. CODEOWNERS
  17. combine_distfiles.py
  18. combine_distfiles_to_tar.sh
  19. compile.sh
  20. CONTRIBUTING.md
  21. CONTRIBUTORS
  22. distdir.bzl
  23. distdir_deps.bzl
  24. ISSUE_TEMPLATE.md
  25. LICENSE
  26. MODULE.bazel
  27. README.md
  28. SECURITY.md
  29. WORKSPACE
  30. WORKSPACE.bzlmod
README.md

Bazel

{Fast, Correct} - Choose two

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Getting Started

Documentation

Reporting a Vulnerability

To report a security issue, please email security@bazel.build with a description of the issue, the steps you took to create the issue, affected versions, and, if known, mitigations for the issue. Our vulnerability management team will respond within 3 working days of your email. If the issue is confirmed as a vulnerability, we will open a Security Advisory. This project follows a 90 day disclosure timeline.

Contributing to Bazel

See CONTRIBUTING.md

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