This commit does the following 3 things for Android bazel rules, which depends on each other
1. Update NDK to 26.2.11394342 (and a few other Android things)
2. Use rules_android_ndk instead of builtin `native.android_ndk_repository`
* `third_party/android/android_configure.bzl` was a workaround for users who don't set `$ANDROID_NDK_HOME` env var. Now with rules_android_ndk, we can declare repo without registering the toolchain. Instead users who need NDK toolchain should use `--extra_toolchains` to manually register the toolchain, as shown in README.md.
3. Migrate to platforms. See https://bazel.build/concepts/platforms
* Currently we declares android platforms that is needed for binder transport APK. Later gRPC repo can gradually migrate to platforms for other platforms.
* The value of `crosstool_top` will still be `//external:android/crosstool` (which is the default value), so existings android `config_settings` will still work. We should migrate them to match with `@platforms//os:android` constraint later.
The platforms migration needs Bazel 7.0 to work so we also override bazel version in testing scripts.
Closes#36116
PiperOrigin-RevId: 617244655
- Upgrade bazel
- Reduce the number of places where bazel version needs to be upgraded
in future.
- also make sure the list of bazel versions to test by bazelified tests
is loaded from supported_versions.txt (it was hardcoded before).
- ~~Try upgrading windows RBE build to bazel 6.3.2 as well.~~
The core idea:
- the source of truth for supported bazel versions is in
`bazel/supported_versions.txt`
- the first version listed in `bazel/supported_versions.txt` is
considered to be the "primary" bazel version and is going to be used in
most places thoroughout the repo.
- use templates to include the primary bazel version in testing
dockerfiles and in a newly introduced `.bazelversion` files (which gets
loaded by our existing `tools/bazel` wrapper).
~~Supersedes https://github.com/grpc/grpc/pull/33880~~
Oops I missed important changes from
https://github.com/grpc/grpc/pull/32712. And it turned out that there
are two problems that I couldn't fix at this point.
- Windows Bazel RBE Linker Error: This may be caused by how new Bazel 6
invokes build tools chain but it's not clear. I put workaround to use
Bazel 5 by using `OVERRIDE_BAZEL_VERSION=5.4.1`
- Rule `rules_pods` to fetch CronetFramework from CocoaPod has
incompatibility with sort of built-in apple toolchain.
(https://github.com/bazel-xcode/PodToBUILD/issues/232): I couldn't find
a workaround to fix this so I ended up disabling all tests depending
this target.
In preparation for #8079, new CI tests have to be added to Kokoro for
testing gRPC Python with Bazel.
python-dev has to installed so that Python.h headers are available for
building Cython code.
Esun Kim
Ming-Chuan
Jan Tattermusch
Jan Tattermusch
Ming-Chuan
Ming-Chuan
Richard Belleville
Stanley Cheung
Lidi Zheng
Nicolas Noble
Nicolas "Pixel" Noble
Bill Feng
yang-g
Naresh