Allow building with C++20 (#60) #24

	# Workflow for deploying doxygen generated reference documentation
	name: Deploy reference documentation to GitHub Pages

	on:
	# Runs on pushes targeting the default branch
	push:
	branches: ["main"]

	# Allows to run this workflow manually from the Actions tab
	workflow_dispatch:

	# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
	permissions:
	contents: read
	pages: write
	id-token: write

	# Allow one concurrent deployment
	concurrency:
	group: "pages"
	cancel-in-progress: true

	jobs:
	deploy-docs:
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	runs-on: ubuntu-latest
	steps:
	- uses: cvmfs-contrib/github-action-cvmfs@v2
	- name: Checkout
	uses: actions/checkout@v3
	- name: Start container
	run: \|
	docker run -it --name CI_container \
	-v ${GITHUB_WORKSPACE}:/Package \
	-v /cvmfs:/cvmfs:shared \
	-d ghcr.io/aidasoft/centos7:latest /bin/bash
	- name: Configure
	run: \|
	docker exec CI_container /bin/bash -c 'cd Package
	mkdir -p build
	source /cvmfs/sw.hsf.org/key4hep/setup.sh
	cd build
	cmake -DCMAKE_CXX_STANDARD=17 \
	-DCMAKE_CXX_FLAGS=" -fdiagnostics-color=always " \
	-G Ninja ..'
	- name: Build docs
	run: \|
	docker exec CI_container /bin/bash -c 'cd ./Package
	source /cvmfs/sw.hsf.org/key4hep/setup.sh
	cd build
	ninja -k0 doc'
	- name: Setup Pages
	uses: actions/configure-pages@v3
	- name: Upload artifact
	uses: actions/upload-pages-artifact@v1
	with:
	path: './build/doxygen/html'
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v1

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