Fix CI for Windows and Mac OS #89

	name: documentation

	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master

	jobs:
	skip_duplicate:
	name: 'Skip job?'
	continue-on-error: true
	runs-on: ubuntu-latest

	steps:
	- id: skip_check
	uses: fkirc/skip-duplicate-actions@master
	with:
	paths: '["tpie/", "doc/"]'

	outputs:
	should_skip: ${{ steps.skip_check.outputs.should_skip }}

	create_docs:
	name: 'Create documentation'
	runs-on: ubuntu-latest

	needs: skip_duplicate
	if: ${{ needs.skip_duplicate.outputs.should_skip != 'true' }}

	steps:
	# Git repo set up
	- name: Checkout commit
	uses: actions/checkout@v2

	- name: Install C++ project dependencies
	run: sudo apt install libboost-all-dev

	- name: Install Doxygen and TeXLive
	run: sudo apt install doxygen

	# CMake build and create docs
	- name: CMake build
	working-directory: ${{github.workspace}}
	run: \|
	cmake -E make_directory ${{github.workspace}}/build
	cd ${{github.workspace}}/build
	cmake -D CMAKE_BUILD_TYPE="Release" -D CMAKE_CXX_STANDARD=14 ..

	- name: Make apidocs
	working-directory: ${{github.workspace}}/build
	run: make apidocs

	# Upload artifact if it is pull request to master
	- uses: actions/upload-artifact@v2
	if: ${{ github.event_name == 'pull_request' }}
	with:
	name: documentation
	path: ${{github.workspace}}/build/doc/html/

	# Deploy on GitHub Pages if pushed to master
	- uses: JamesIves/github-pages-deploy-action@4.1.4
	if: ${{ github.event_name == 'push' }}
	with:
	branch: gh-pages
	folder: ${{github.workspace}}/build/doc/html/

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