format C++ code with clang format #211

	# Run doxygen to generate documentation from C++ code
	# build doxygen, error on warnings.
	name: run-doxygen
	# The default build trigger is to run the action on every push for any branch
	on:
	workflow_dispatch:
	pull_request:
	push:
	branches:
	- main
	# To run the default repository branch weekly on sunday, uncomment the following 2 lines
	#schedule:
	#- cron: '0 0 * * 0'

	jobs:
	build-doxygen:
	name: Build HTML documentation from C++ code
	runs-on: ubuntu-latest
	env:
	GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}

	steps:
	- name: Get repository
	uses: actions/checkout@v3

	- name: Installing build dependencies
	run: \|
	sudo apt update
	sudo apt install cmake doxygen gcc git ninja-build

	- name: Building HTML documentation with Doxygen
	# Do not run mkdir docs and mv build/html docs locally
	# Do not run -DDOXYGEN_WARN_AS_ERROR=YES locally
	run: \|
	cmake -S . -B build -G Ninja -DDOXYGEN_WARN_AS_ERROR=YES
	cmake --build build

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