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pigweed / pigweed / quickstart / bazel / 6535ca48f9c6b8cbe9d8af62ef86d87dadcfef3b
commit6535ca48f9c6b8cbe9d8af62ef86d87dadcfef3b[log] [tgz]
authorWyatt Hepler <hepler@pigweed.infra.roller.google.com>Wed Sep 17 20:54:55 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Sep 17 20:54:55 2025 -0700
treee18ade5829df609d2d731ecf140fbcce084a3040
parent9e33adc58b907ff1056ee74660888c231bb28350 [diff]
roll: pigweed pw_compilation_testing: Consolidate generic (non-GN) functionality

- Move more code into the generic enumerate_tests and run_test functions
  to prepare for a Bazel implementation.
- Only check if a test is disabled if compilation succeeds. This speeds
  up tests since it removes a preprocessor invocation from most tests.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/322873
Original-Revision: 2c0b581240be92bda0d6377a0e3a74f800c75406

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: a764d26aefecc6..2c0b581240be92
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8703421521657704289
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I9f5df8ddd0a6c7b42ce62c4a0c207bdf6ad32483
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/323632
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: e18ade5829df609d2d731ecf140fbcce084a3040
  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.