Google Git
Sign in
pigweed / pigweed / quickstart / bazel / 9f456b1225b280f0762ce0e4977a81db32c87d8a
commit9f456b1225b280f0762ce0e4977a81db32c87d8a[log] [tgz]
authorTed Pudlik <tpudlik@pigweed.infra.roller.google.com>Wed Sep 25 17:26:13 2024 +0000
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Sep 25 17:26:13 2024 +0000
tree55a327defb89dadbb5742e9d51a5f43dcd3a9477
parent8e3be0d7cc92c13cdc0711501ca872dcdf8e6b9d [diff]
roll: pigweed bazel: Specify a cache silo key

Doing so provides a mechanism for recovering from remote cache
poisoning. This is a prerequisite for allowing unsubmitted code (CQ
jobs) to write to the remote cache. Internally, see
http://yaqs/6993488788445986816#a1 for context.

Original-Bug: 312215590
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/236794
Original-Revision: 8b3ecac47b61439fef8ebac01f0000eb01bddc76

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 340d624033ce86..8b3ecac47b6143
Roller-URL: https://ci.chromium.org/b/8735804212692828961
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I3ad447d171dc4fd70124855d5c359cd958646527
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/237856
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: 55a327defb89dadbb5742e9d51a5f43dcd3a9477
  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.