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pigweed / pigweed / quickstart / bazel / bce1d0b36e22f823f93f859b9851ab75e694e326
commitbce1d0b36e22f823f93f859b9851ab75e694e326[log] [tgz]
authorArmando Montanez <amontanez@pigweed.infra.roller.google.com>Fri Sep 20 22:06:12 2024 +0000
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Sep 20 22:06:12 2024 +0000
treee46437c5bc3e429996ae6ff65794dbf932b751e0
parent69e3de24bee6f953ba47c557c51fd59f68c722df [diff]
roll: pigweed pw_toolchain: Migrate host clang to rules_cc toolchains

Migrates Pigweed to use the toolchain rules upstreamed to rules_cc.

Original-Bug: b/346388161
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/207550
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: 130903fe021f3b3dbd85d512b6c6004fe0d46b21

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 0ffb69decbf0ea..130903fe021f3b
Roller-URL: https://ci.chromium.org/b/8736239970636518593
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I4a84b25edde4308472cb207a884d3fc1cd99c0b0
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/237079
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
1 file changed
tree: e46437c5bc3e429996ae6ff65794dbf932b751e0
  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.