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pigweed/pigweed/quickstart/bazel/05539ecf5a22b96a39fd7df9f9261d4437f9b7da
commit
05539ecf5a22b96a39fd7df9f9261d4437f9b7da
[log]
author
Wyatt Hepler <hepler@pigweed.infra.roller.google.com>
Tue Oct 28 01:30:14 2025 -0700
committer
CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Tue Oct 28 01:30:14 2025 -0700
tree
afee95fe2425c18a61bcb7e4902aab92d9dc5d50
parent
9f0dbcd608a0d073bd1a576f3a22bcb6e522273b [diff]
roll: pigweed pw_containers: Rework FixedDeque to support owned or unowned storage

- Rework FixedDeque and FixedQueue to support either owned or unowned
  storage. Owned storage may be dynamic or static.
- Require UniquePtrs used for FixedDeques to be aligned. This ensures
  that the base's buffer pointer matches the UniquePtr so it can be used
  to deallocate owned buffers.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/337552
Original-Revision: 2bc32d08807c1ead3ef0a8184a3714d14b6a1b76

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: d89db6589382bf..2bc32d08807c1e
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8699780262508848353
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I71a9895c00fad9a65e821d64241ff08e80b8c166
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/338813
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
1 file changed
tree: afee95fe2425c18a61bcb7e4902aab92d9dc5d50
  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. .clang-tidy
  14. .clangd.shared
  15. .gitignore
  16. .pw_console.yaml
  17. .pylintrc
  18. AUTHORS
  19. BUILD.bazel
  20. CONTRIBUTING.md
  21. LICENSE
  22. MODULE.bazel
  23. MODULE.bazel.lock
  24. mypy.ini
  25. OWNERS
  26. pw
  27. README.md
  28. workflows.json
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.