example formatting

[dstroy0]

Examples do not follow arduino formatting conventions.

[dstroy0]

added .clang-format to library, the style is not right for the examples yet. Arduino uses an artistic style to format where the closing braces are on a newline.

[dstroy0]

Examples follow Arduino IDE formatting conventions, but I would like to make the C++ extension's clang-format in vscode behave the same way for the examples.

[2bndy5]

clang-format for examples still isn't right

The Arduino CLI workflow is using the examples_formatter.conf file in your examples folder. This conf file (& the action that uses it) executes a different linter called AStyle.

Arduino IDE is moving away from AStyle because it has stopped seeing updates (including possible bug fixes). Going forward, the Arduino IDE will start using clang-format, but we won't see that until the Arduino IDE v2.0 reaches stable release.

I received a copy of the proposed Arduino IDE .clang-format file from someone on the Arduino team (with admin privileges). You can get a copy from the RF24/clang-format branch.

To actually use clang-format as a linter in your CI workflows, I helped write a Github Action that you can use like so:

      - uses: shenxianpeng/cpp-linter-action@master
        id: linter
        with:
          version: 12
          extensions: ino
          style: file
          tidy-checks: '-*'
          files-changed-only: false
          thread-comments: false
          verbosity: 20

      - name: Linter checks failed?
        if: steps.linter.outputs.checks-failed > 0
        run: exit 1

---

If the clang-format file that you have now is copied from RF24/clang-format branch's root folder, then that file is meant only for linting the library.

[dstroy0]

Excellent, I've moved .clang-format to src/utility. I made the lib-cpp-linter workflow using shenxianpeng/cpp-linter-action@master