Skip tests and checks when PR only contains docs changes #482

	# Copyright (c) 2025, NVIDIA CORPORATION.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	name: Build docs

	on:
	pull_request:
	types: [opened, synchronize, reopened, labeled, unlabeled]
	workflow_call:

	jobs:
	build-docs:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.12'

	- name: Install uv
	run: \|
	curl -LsSf https://astral.sh/uv/0.8.22/install.sh \| sh
	echo "$HOME/.local/bin" >> $GITHUB_PATH

	- name: Create virtual environment
	run: uv venv

	- name: Install docs dependencies (skip project deps to avoid CUDA)
	run: \|
	uv pip install \
	"myst-parser>=4.0.1" \
	"nvidia-sphinx-theme>=0.0.8" \
	"sphinx>=8.1.3" \
	"sphinx-autobuild>=2024.10.3" \
	"sphinx-autodoc2>=0.5.0" \
	"sphinx-copybutton>=0.5.2"

	- name: Build documentation
	run: \|
	source .venv/bin/activate
	sphinx-build -b html docs docs/build/html

	- name: Upload docs artifact
	uses: actions/upload-artifact@v4
	with:
	name: documentation
	path: docs/build/html/

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