Windows,Bazel client: check embedded tools faster

The Bazel client on Windows is now 50% faster to
check the embedded tools than it was before.

Results:
- Linux: 20 ms -> 6 ms
- Windows: 294 ms -> 133 ms

Measurements were done with n=10 runs and a hot
server, using blaze::GetMillisecondsMonotonic().

Previously the client performed the same tasks
multiple times while trying to determine if a path
was a good extracted binary. (E.g. converted the
path to Windows format multiple times, checked if
it was a directory twice, opened the path twice.)

Now the client performes these tasks only once,
e.g. it converts path once and stats only once.

See https://github.com/bazelbuild/bazel/issues/5444

Closes #5445.

PiperOrigin-RevId: 201913758
7 files changed
tree: bc83357596371d3d3b284d5775492f806e38ffb3
  1. .bazelci/
  2. examples/
  3. scripts/
  4. site/
  5. src/
  6. third_party/
  7. tools/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. BUILD
  12. CHANGELOG.md
  13. combine_distfiles.py
  14. combine_distfiles_to_tar.sh
  15. compile.sh
  16. CONTRIBUTING.md
  17. CONTRIBUTORS
  18. distdir.bzl
  19. ISSUE_TEMPLATE.md
  20. LICENSE
  21. README.md
  22. 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.