Add platform selection to .bazelrc based on --config
In recent CLs, if_fuchsia was changed to rely on the platform
definition, which works fine if the target has a platform transition like
fuchsia_package or fuchsia_cc_binary, or if the user explicitly
specifies `--platforms=@rules_fuchsia//fuchsia/constraints/platforms:fuchsia_x64`
However, we have not fully migrated to platforms, and specifying the
crosstool_top and cpu is still required. So, in order to build a target
that does not go through a forced transition, the user would need to
specify both `--config=fuchsia_*` and `--platforms=...`, which is very
verbose.
This CL adds the appropriate `--platforms=` to .bazelrc, so
`--config=fuchsia_x64` sets both cpu, crosstool and platforms.
It is not ideal though because AFAICT it makes it impossible to build
for the host while using these --config options, unless if the target
has a platform transition. But since our focus on the sdk-samples for
now is to build for the Fuchsia target, I believe this should be ok
until we fully transition to platform and remove the requirement of
using cpu and crosstool.
Fixed: 116517
Change-Id: I1fbc255887a57bcaa4719aa7e6785c549991d57e
Reviewed-on: https://fuchsia-review.googlesource.com/c/sdk-samples/getting-started/+/769587
Reviewed-by: Chase Latta <chaselatta@google.com>
Reviewed-by: Wayne Piekarski <waynepie@google.com>
Reviewed-by: Renato Mangini Dias <mangini@google.com>
diff --git a/.bazelrc b/.bazelrc
index 28c3ecc..d8d44b5 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -5,8 +5,10 @@
build:fuchsia_x64 --cpu=x86_64
build:fuchsia_x64 --host_crosstool_top=@bazel_tools//tools/cpp:toolchain
build:fuchsia_x64 --copt=--debug --strip=never
+build:fuchsia_x64 --platforms=@rules_fuchsia//fuchsia/constraints/platforms:fuchsia_x64
build:fuchsia_arm64 --crosstool_top=@fuchsia_clang//:toolchain
build:fuchsia_arm64 --cpu=aarch64
build:fuchsia_arm64 --host_crosstool_top=@bazel_tools//tools/cpp:toolchain
build:fuchsia_arm64 --copt=--debug --strip=never
+build:fuchsia_arm64 --platforms=@rules_fuchsia//fuchsia/constraints/platforms:fuchsia_arm64
