Filters #27

	name: Build terrain analysis extension

	on:
	push:
	branches: [ "master" ]
	paths:
	- 'cython/**'
	- '.github/workflows/build.yml'

	permissions:
	contents: write

	concurrency:
	group: ci-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	build:
	strategy:
	max-parallel: 1
	matrix:
	os: [ubuntu-latest, windows-latest, macos-latest]
	python: ["3.10", "3.11", "3.12", "3.13"]

	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v4
	with:
	ref: ${{ github.head_ref }}

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python }}

	- name: Install packages
	run: \|
	python -m pip install --upgrade pip
	pip install wheel setuptools numpy cython
	pip install --no-build-isolation -e .

	- name: Check for changes
	id: git_diff
	run: \|
	git config user.name github-actions[bot]
	git config user.email 41898282+github-actions[bot]@users.noreply.github.com
	if [[ `git status --porcelain` ]]; then
	echo "has_changes=true" >> $GITHUB_ENV
	else
	echo "has_changes=false" >> $GITHUB_ENV
	fi
	shell: bash

	- name: Commit and push build artifacts
	if: env.has_changes == 'true'
	run: \|
	git pull origin ${{ github.head_ref }}
	git add -A
	git commit -m "CI Build Extension ${{ matrix.os }}-${{ matrix.python }}"
	git push

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