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/documentation/BUILD b/documentation/BUILD
index 569ce64..5099a7d 100644
--- a/documentation/BUILD
+++ b/documentation/BUILD
@@ -3,4 +3,5 @@
pandoc_html(
name = "index",
src = "README.md",
+ target_compatible_with = ["@platforms//os:linux"],
)
diff --git a/documentation/tutorials/BUILD b/documentation/tutorials/BUILD
index 5816444..d94d255 100644
--- a/documentation/tutorials/BUILD
+++ b/documentation/tutorials/BUILD
@@ -14,4 +14,5 @@
[pandoc_html(
name = article_name,
src = article_name + ".md",
+ target_compatible_with = ["@platforms//os:linux"],
) for article_name in articles]
diff --git a/documentation/tutorials/download-code-to-the-robot.md b/documentation/tutorials/download-code-to-the-robot.md
index 4f667cc..c73e3db 100644
--- a/documentation/tutorials/download-code-to-the-robot.md
+++ b/documentation/tutorials/download-code-to-the-robot.md
@@ -20,7 +20,7 @@
2. Download the code
```console
-bazel run --cpu=roborio --compilation_mode=opt //y2018:download -- admin@roboRIO-971-frc.local
+bazel run --config=roborio --compilation_mode=opt //y2018:download -- admin@roboRIO-971-frc.local
```
3. TODO: How to run the code using the driver station.