subprocesses: customizable SubprocessFactory

Individual SubprocessBuilder instances can now use
a SubprocessFactory object other than the static
SubprocessBuilder.factory.

Also, WindowsSubprocessFactory is no longer a
singleton because it now stores state: whether to
use windows-style argument escaping or to use the
(broken) Bash-style escaping (causing https://github.com/bazelbuild/bazel/issues/7122).

These two changes allow:
- a safer way to mock out SubprocessFactory in
  tests, because it's no longer necessary to
  change global state (i.e. the static
  SubprocessBuilder.factory member)
- testing old and new argument escaping semantics
  in WindowsSubprocessTest
- adding a flag that switches between old and new
  semantics in the SubprocessFactory, and thus
  allows rolling out the bugfix with just a flag
  flip

See https://github.com/bazelbuild/bazel/issues/7122

PiperOrigin-RevId: 234105692
5 files changed
tree: 4c4f87df5b1a67488cf58cafa77d87fc30f89288
  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. CODEOWNERS
  14. combine_distfiles.py
  15. combine_distfiles_to_tar.sh
  16. compile.sh
  17. CONTRIBUTING.md
  18. CONTRIBUTORS
  19. distdir.bzl
  20. ISSUE_TEMPLATE.md
  21. LICENSE
  22. README.md
  23. 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.