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pigweed / pigweed / quickstart / bazel / 7a96fc18a8ab69c7a66513290d18758fb744c7f9
commit7a96fc18a8ab69c7a66513290d18758fb744c7f9[log] [tgz]
authorWyatt Hepler <hepler@pigweed.infra.roller.google.com>Thu Oct 03 23:45:54 2024 +0000
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Oct 03 23:45:54 2024 +0000
tree006782cec4c53fc6484ebbfde12e24882ae21311
parent56e15c10315ae8daa591a7e2340bfd6abad9b149 [diff]
roll: pigweed pw_build: Support pw_facade without public headers

- Allow use of pw_facade without public headers, but do not emit a
  .facade subtarget when it is empty. pw_facade still provides value
  since it handles unset backend variables and gives helpful errors.
- Propagate visibility to the ".facade" target. Fix existing visibility
  violations.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/239755
Original-Revision: b6e84ae48f25f37da692df0b5fcc148ffa9d3d58

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: dc99cbcc9e8026..b6e84ae48f25f3
Roller-URL: https://ci.chromium.org/b/8735055459885209089
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I145085a217890111029be4925028c53c3121422f
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/240032
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
1 file changed
tree: 006782cec4c53fc6484ebbfde12e24882ae21311
  1. .github/
  2. .vscode/
  3. apps/
  4. modules/
  5. system/
  6. targets/
  7. tools/
  8. .bazelignore
  9. .bazelrc
  10. .bazelversion
  11. .buildifier.json
  12. .clang-format
  13. .clangd.shared
  14. .gitignore
  15. .pw_console.yaml
  16. AUTHORS
  17. BUILD.bazel
  18. CONTRIBUTING.md
  19. LICENSE
  20. MODULE.bazel
  21. OWNERS
  22. pigweed.json
  23. README.md
README.md

Pigweed: minimal Bazel example

This repository contains a minimal example of a Bazel-based Pigweed project. It is a LED-blinking service (featuring RPC control!) for the Raspberry Pi Pico. It can also be run on any computer using the included simulator.

Getting the code

git clone https://pigweed.googlesource.com/pigweed/quickstart/bazel pw_bazel_quickstart
cd pw_bazel_quickstart

Dependencies

The only dependency that must be installed is Bazelisk.

Bazelisk is a launcher for the Bazel build system that allows for easy management of multiple Bazel versions.

Instructions for installing Bazelisk can be found here.

Running on the simulator

To run the simulator, type: bazelisk run //apps/blinky:simulator_blinky Then, in a new console, connect to the simulator using: bazelisk run //apps/blinky:simulator_console

Running on hardware

To start, connect a Raspberry Pi Pico, Pico 2, or debug probe via USB.

To run on the Raspberry Pi Pico, type: bazelisk run //apps/blinky:flash_rp2040 Then, in a new console, connect to the device using: bazelisk run //apps/blinky:rp2040_console

Controlling the LED

Once connected with a console, RPCs can be sent to control the LED. Try running:

device.set_led(True)
device.set_led(False)
device.toggle_led()
device.blink(blink_count=3)

Running unit tests on the host device

bazelisk test //... will run the unit tests defined in this project, such as the ones in modules/blinky/blinky_test.cc.

Running unit tests on hardware

bazelisk run @pigweed//targets/rp2040/py:unit_test_server in one console followed by bazelisk test //... --config=rp2040 will also allow running the unit tests on-device.

Next steps

Try poking around the codebase for inspiration about how Pigweed projects can be organized. Most of the relevant code in this quickstart (including RPC definitions) is inside modules/blinky, with some client-side Python code in tools/console.py.