[CI] Migrate intel.github.io/llvm-docs/ to `intel/llvm` #1921

	name: Generate documentation

	on:
	schedule:
	- cron: 0 1 * * *
	pull_request:
	branches:
	- sycl
	paths:
	- '.github/workflows/sycl-docs.yml'
	- 'clang/docs/**'
	- 'sycl/doc/**'
	push:
	branches:
	- sycl
	paths:
	- '.github/workflows/sycl-docs.yml'
	- 'clang/docs/**'
	- 'sycl/doc/**'

	permissions:
	contents: read
	pages: write
	id-token: write

	jobs:
	build:
	runs-on: ubuntu-latest
	if: github.repository == 'intel/llvm'
	steps:
	- uses: actions/checkout@v4
	with:
	path: repo
	- name: Install deps
	run: \|
	sudo apt-get install -y graphviz ssh ninja-build libhwloc-dev
	sudo pip3 install -r repo/llvm/docs/requirements.txt
	- name: Build Docs
	run: \|
	mkdir -p $GITHUB_WORKSPACE/build
	cd $GITHUB_WORKSPACE/build
	python $GITHUB_WORKSPACE/repo/buildbot/configure.py -w $GITHUB_WORKSPACE \
	-s $GITHUB_WORKSPACE/repo -o $GITHUB_WORKSPACE/build -t Release --docs
	cmake --build . --target docs-sycl-html
	cmake --build . --target docs-clang-html
	# Copy the generated docs to a separate directory for uploading.
	mkdir $GITHUB_WORKSPACE/install_docs
	cd $GITHUB_WORKSPACE/install_docs
	mkdir clang
	mv $GITHUB_WORKSPACE/build/tools/sycl/doc/html/* .
	mv $GITHUB_WORKSPACE/build/tools/clang/docs/html/* clang/
	touch .nojekyll
	# Upload the generated docs as an artifact and deploy to GitHub Pages.
	- name: Upload artifact
	uses: actions/upload-pages-artifact@v3
	with:
	path: ./install_docs
	- name: Deploy to GitHub Pages
	if: ${{ github.event_name == 'push' }}
	uses: actions/deploy-pages@v4

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