Make the state in RuleContext explicit

This isn't ideal - RuleContext should not have state, but this ended up
happening between adding a cache and refactoring how make variables are
discovered.

I have carefully traced back all callers that provide custom make variable
suppliers and added an init call to their rule initialization. Note that the
ConfigurationMakeVariableContext is _cached_, so callers that call in without
any make variable suppliers and then call again with them would get the context
from the previous call.

We now enforce that the ConfigurationMakeVariableContext is only initialized
once, and that this happens before any usage, which is slightly better than the
previous state, where initialization was silently ignored on any subsequent
call.

Progress on #2475.

PiperOrigin-RevId: 170312285
7 files changed
tree: bd51fd8d63b659604af8e291f709b0ededf1a3b3
  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 system. 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.