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pigweed / pigweed / quickstart / bazel / 2bbdfcb2a8a01d785b0b6c602d014d2723db6acd
commit2bbdfcb2a8a01d785b0b6c602d014d2723db6acd[log] [tgz]
authorTed Pudlik <tpudlik@google.com>Thu Sep 26 18:19:58 2024 +0000
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Sep 26 18:19:58 2024 +0000
treef0c058c6615050dd7f68602c4889d0d46f0f8a42
parent8e3014867f157f9ba1b83981b4d55b69082b0327 [diff]
bazel: Retry build on remote cache evictions

The default value of this flag is 0. Set this to 5, in case more than
one evicted artifact is stumbled upon.

Bug: 369413203
Change-Id: Ic8b487c4f2e1c1b2a5614ce45a02bad3af20e4f3
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/238212
Pigweed-Auto-Submit: Ted Pudlik <tpudlik@google.com>
Reviewed-by: Austin Foxley <afoxley@google.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed-service-accounts.iam.gserviceaccount.com>
1 file changed
tree: f0c058c6615050dd7f68602c4889d0d46f0f8a42
  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.