Handle existing fileset with `FilesetExistsError` instead of generic … #19

	# GitHub workflow that build and publish the mkdocs documentation when a new commit is pushed.

	name: Build & Deploy documentation

	# Triggers workflow on any push to the repository
	on:
	- push

	jobs:
	docs:
	runs-on: ubuntu-latest # Use Ubuntu as the execution environment
	steps:
	# Step 1: Clone the repository code
	- name: Checkout repository
	uses: actions/checkout@v4

	# Step 2: Install Python runtime
	- name: Set up Python 3.9
	uses: actions/setup-python@v5
	with:
	python-version: '3.9' # Specify Python version for docs build
	cache: 'pip' # Enable caching of pip packages to speed up workflow

	# Step 3: Install the sources with documentation dependencies
	- name: Install library & documentation requirements
	# Use .[doc] syntax for extras
	run: python3 -m pip install .[doc]

	# Step 4: Generate static site from markdown docs
	- name: Build documentation with mkdocs
	run: mkdocs build

	# Step 5: Deploy to GitHub Pages
	- name: Deploy documentation
	uses: peaceiris/actions-gh-pages@v3
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }} # Use auto-generated token for authentication
	publish_dir: ./site # Deploy the mkdocs output directory

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