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/aos/config.bzl b/aos/config.bzl
index a11efd5..57d6af3 100644
--- a/aos/config.bzl
+++ b/aos/config.bzl
@@ -5,7 +5,7 @@
"transitive_src",
])
-def aos_config(name, src, flatbuffers = [], deps = [], visibility = None, testonly = False):
+def aos_config(name, src, flatbuffers = [], deps = [], visibility = None, testonly = False, target_compatible_with = None):
_aos_config(
name = name,
src = src,
@@ -13,6 +13,7 @@
flatbuffers = [expand_label(flatbuffer) + "_reflection_out" for flatbuffer in flatbuffers],
visibility = visibility,
testonly = testonly,
+ target_compatible_with = target_compatible_with,
)
def _aos_config_impl(ctx):