| commit | c88fcfdd56ac1eb3b825751833ec823327809672 | [log] [tgz] |
|---|---|---|
| author | Cal Peyser <cpeyser@google.com> | Mon Jun 06 21:21:46 2016 +0000 |
| committer | Yun Peng <pcloudy@google.com> | Tue Jun 07 07:49:00 2016 +0000 |
| tree | de9bf958e7a3f3109a3fd00e4afe08e2f366c418 | |
| parent | 4c839b5a7e034fb81bcb6b8235e9be3ea0a9a3d9 [diff] |
Add module map support to ExperimentalObjcLibrary, which contains experimental support for building objc code using the c++ crosstool. This will eventually replace the current module support in blaze. Note: This required injecting a CppModuleMap into the cc logic. The reason that objc cannot rely on standard CppModuleMap creation logic is that there is different naming semantics for module maps between cpp and objc. In particular: - In cc, module maps can be inputs to a compilation action. Thus, the module maps are given labels. - In objc, if interoping with swift, module maps are explicitly referenced in swift code. Thus, their names cannot contain illegal characters for swift source. Those, some name mangling occurs to get rid of "//" and ":". To enforce that this does not cause problems with compilation actions, the CPP_MODULE_COMPILE action has been disabled for the objc CcLibraryHelper.SourceCategory -- MOS_MIGRATED_REVID=124177067
{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.