tree 0a12c34dd6d3c0bb376107668ad39213ae641bbb
parent 0aeedcc16df7b61bc09f33b6885d112cf9430c35
author Wyatt Hepler <hepler@google.com> 1618367180 -0700
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1619728256 +0000

pw_build: Configurable Python and proto toolchains

- Rename pw_toolchain/dummy to pw_toolchain/default to make its intended
  purpose clear. Keep pw_toolchain/dummy around for compatibility.
- Create a template that generates non-C++ toolchains. This is used for
  non-C++ tasks like Python and proto. GN parses build files differently
  in the default toolchain (all targets are instantiated), so the
  these toolchains can be used when that is not desired.
- Make pw_python_package's toolchain configurable with the
  pw_build_PYTHON_TOOLCHAIN arg.
- Make pw_proto_library's toolchain configurable with the
  pw_protobuf_compiler_TOOLCHAIN arg.

Requires: pigweed-internal:11680
Change-Id: I0aad049c605906b77c58b93a08efc63a648947ee
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/40763
Reviewed-by: Armando Montanez <amontanez@google.com>
Reviewed-by: Keir Mierle <keir@google.com>
Commit-Queue: Wyatt Hepler <hepler@google.com>