|author||Colin Cross <email@example.com>||Mon Apr 11 17:33:13 2016 -0700|
|committer||Colin Cross <firstname.lastname@example.org>||Tue Apr 12 14:52:46 2016 -0700|
Support dependencies between variants Variants of a module may need to depend on other variants, for example to reuse results between variants. Support AddInterVariantDependency to add an explicit dependency from one variant to another, along with a dependency tag. Both modules must have just been returned by a call to CreateVariants. Change-Id: I8f4878f94ced74dd00cfac8303b15ef70cdebf36
Blueprint is a meta-build system that reads in Blueprints files that describe modules that need to be built, and produces a Ninja manifest describing the commands that need to be run and their dependencies. Where most build systems use built-in rules or a domain-specific language to describe the logic for converting module descriptions to build rules, Blueprint delegates this to per-project build logic written in Go. For large, heterogenous projects this allows the inherent complexity of the build logic to be maintained in a high-level language, while still allowing simple changes to individual modules by modifying easy to understand Blueprints files.