ParallelEvaluator: report events early for cache hits

In the case that a node is already done when evaluation starts, we now report
events and postables early, rather than waiting until the end of evaluation.
This makes reporting more timely, and ensures reporting even if the evaluation
is interrupted.

This caused a problem with moving the TargetCompleteEvent into Skyframe
(unknown commit). I added two unit tests at the Skyframe level to cover the
guarantees that we need for that.

Note that the replay call in constructResult can duplicate the events from
a cache hit - this is not a problem since the replaying visitor automatically
removes duplicates (and it wasn't obvious which keys correspond to cache
hits).

PiperOrigin-RevId: 179788157
3 files changed
tree: 4f4ab4897ea3759ad92a6c42529192cbc669b00c
  1. examples/
  2. scripts/
  3. site/
  4. src/
  5. third_party/
  6. tools/
  7. .gitattributes
  8. .gitignore
  9. AUTHORS
  10. BUILD
  11. CHANGELOG.md
  12. combine_distfiles.py
  13. combine_distfiles_to_tar.sh
  14. compile.sh
  15. CONTRIBUTING.md
  16. CONTRIBUTORS
  17. ISSUE_TEMPLATE.md
  18. LICENSE
  19. README.md
  20. WORKSPACE
README.md

Bazel

{Fast, Correct} - Choose two

Build and test software of any size, quickly and reliably.

  • Speed up your builds and tests: Bazel only rebuilds what is necessary. With advanced local and distributed caching, optimized dependency analysis and parallel execution, you get fast and incremental builds.

  • One tool, multiple languages: Build and test Java, C++, Android, iOS, Go, and a wide variety of other language platforms. Bazel runs on Windows, macOS, and Linux.

  • Scalable: Bazel helps you scale your organization, codebase, and continuous integration solution. It handles codebases of any size, in multiple repositories or a huge monorepo.

  • Extensible to your needs: Easily add support for new languages and platforms with Bazel's familiar extension language. Share and re-use language rules written by the growing Bazel community.

Getting Started

Documentation

Contributing to Bazel

See CONTRIBUTING.md

Build Status

Bazel is released in ‘Beta’. See the product roadmap to learn about the path toward a stable 1.0 release.