Allow ErrorTransienceValue to be added back as a dep during change pruning if it isn't newer than the current node.

ErrorTransienceValue has to be treated specially during pruning because normally deps added during pruning remain if the node is actually rebuilt. The whole point of ErrorTransienceValue is that on a re-evaluation, the node may not depend on it anymore. So we have special logic to force a rebuild if the ErrorTransienceValue has changed. If it hasn't, however, it is ok for pruning to add it back as a dep -- we'll end up marking this value clean, since ErrorTransienceValue is always the last dep.

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MOS_MIGRATED_REVID=101522197
2 files changed
tree: ed693823e826e1a7b8c8aa975238f70a87f0fb32
  1. examples/
  2. scripts/
  3. site/
  4. src/
  5. third_party/
  6. tools/
  7. .gitattributes
  8. .gitignore
  9. BUILD
  10. compile.sh
  11. CONTRIBUTING.md
  12. LICENSE.txt
  13. README.md
  14. WORKSPACE
README.md

Bazel (Alpha)

{Fast, Correct} - Choose two

Bazel is a build tool that builds code quickly and reliably. It is used to build the majority of Google‘s software, and thus it has been designed to handle build problems present in Google’s development environment, including:

  • A massive, shared code repository, in which all software is built from source. Bazel has been built for speed, using both caching and parallelism to achieve this. Bazel is critical to Google's ability to continue to scale its software development practices as the company grows.

  • An emphasis on automated testing and releases. Bazel has been built for correctness and reproducibility, meaning that a build performed on a continuous build machine or in a release pipeline will generate bitwise-identical outputs to those generated on a developer's machine.

  • Language and platform diversity. Bazel's architecture is general enough to support many different programming languages within Google, and can be used to build both client and server software targeting multiple architectures from the same underlying codebase.

Find more background about Bazel in our FAQ.

Getting Started

About the Bazel project: