Switch everything to platforms
This patch switches the codebase over from using the "cpu"
mechanism to using bazel platforms. See
https://docs.bazel.build/versions/master/platforms.html for some more
information.
Most of the substantial changes are in //tools. Instead of using
`cc_toolchain_suite` rules, we now use regular `toolchain` rules that
are registered in the WORKSPACE. That also means that bazel now uses
the target platform to select the compiler.
All --cpu=* arguments should now be --config=* arguments. For example,
`--cpu=roborio` should now be `--config=roborio`. The CI script and
all documentation has been updated to reflect that.
The remainder of the changes revolve around tagging all targets with
`target_compatible_with`. The old mechanism allowed us to specify
repo-wide defaults. The new mechanism does not. That means every
target that didn't have any compatibility specified, now requires
compatibility with `@platforms//os:linux`.
I used buildozer for the vast majority of `target_compatible_with`
changes. buildozer automatically buildifies any BUILD files it
touches. That means this patch also contains a few non-functional
changes that I was too lazy to remove.
Change-Id: I66d6e6ad9161520ee397597cdb492585820a3acd
diff --git a/y2019/actors/BUILD b/y2019/actors/BUILD
index 3aa2a22..4a66b55 100644
--- a/y2019/actors/BUILD
+++ b/y2019/actors/BUILD
@@ -24,6 +24,7 @@
"auto_splines.h",
"autonomous_actor.h",
],
+ target_compatible_with = ["@platforms//os:linux"],
deps = [
"//aos/events:event_loop",
"//aos/logging",
@@ -44,6 +45,7 @@
srcs = [
"autonomous_actor_main.cc",
],
+ target_compatible_with = ["@platforms//os:linux"],
deps = [
":autonomous_action_lib",
"//aos:init",