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pigweed / pigweed / quickstart / bazel / 2ecb36d80a7c174c94a85c27fb5966ef2f91eaac
commit2ecb36d80a7c174c94a85c27fb5966ef2f91eaac[log] [tgz]
authorTed Pudlik <tpudlik@google.com>Tue Feb 25 17:25:15 2025 -0800
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Feb 25 17:25:15 2025 -0800
treefb2cee23811f609647550240bb68f9d11f2550f5
parent07b6ab2e083469398309642ab2d6eb14b8fe9cd3 [diff]
bazel: Load cc_binary, cc_libary from rules_cc

Except for the change to MODULE.bazel, this CL was automatically
generated by running,

buildifier --lint=fix --warnings=native-cc-binary $(find . -name 'BUILD.bazel')
buildifier --lint=fix --warnings=native-cc-library $(find . -name 'BUILD.bazel')

Change-Id: If62c2f64984505d4c69ba65133ec299005a06dd3
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/271212
Commit-Queue: Auto-Submit <auto-submit@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dave Roth <davidroth@google.com>
Pigweed-Auto-Submit: Ted Pudlik <tpudlik@google.com>
7 files changed
tree: fb2cee23811f609647550240bb68f9d11f2550f5
  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. AUTHORS
  18. BUILD.bazel
  19. CONTRIBUTING.md
  20. LICENSE
  21. MODULE.bazel
  22. MODULE.bazel.lock
  23. OWNERS
  24. pigweed.json
  25. 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.