| commit | cd708c3e68256ada53ed2a477a66621aad106e0d | [log] [tgz] |
|---|---|---|
| author | Klaus Aehlig <aehlig@google.com> | Thu Sep 15 13:48:47 2016 +0000 |
| committer | Dmitry Lomov <dslomov@google.com> | Thu Sep 15 15:42:41 2016 +0000 |
| tree | 5f7d0004e58f6fac8a7547a81964018f1dbfcb6c | |
| parent | 41b5688b2ecb8d5ec6c6ed19f42599adb5df41c7 [diff] |
Make environment dependency of actions factor through individual values With actions depending on the (white-listed part) of the environment as a whole, even though they are only re-executed if the used parts of the environment change, each action has to be reconsidered on any change of the environment. For large dependency graphs, this can be a considerable amount of effort; therefore add intermediate values for the individual variables and make actions only depend on those actually used. -- Change-Id: I283d289da3e0782dc4f9ac084a41425166cfede0 Reviewed-on: https://bazel-review.googlesource.com/#/c/5494 MOS_MIGRATED_REVID=133255911
{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.