MHP Updates #6376

	name: Lint/Test

	on:
	pull_request:

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

	jobs:
	test:
	runs-on: ubuntu-latest
	permissions:
	contents: read

	strategy:
	matrix:
	node-version: [ latest ]

	steps:
	- uses: actions/checkout@master
	with:
	fetch-depth: 1
	filter: blob:none
	sparse-checkout-cone-mode: false
	sparse-checkout: \|
	/*
	!/_img/**

	- id: list_img_changes
	uses: tj-actions/changed-files@main
	with:
	files: \|
	_img/**
	separator: "\n"

	- run: \|
	set -euo pipefail

	changed="${{ steps.list_img_changes.outputs.all_changed_files }}"

	if [[ -z "${changed// }" ]]; then
	echo "No files to checkout under _img."
	exit 0
	fi

	while IFS= read -r p; do
	[[ -z "$p" ]] && continue
	echo "Including: $p"
	git sparse-checkout add -- "$p"
	done <<< "$changed"

	git checkout -- .

	- name: Use Node.js ${{ matrix.node-version }}
	uses: actions/setup-node@master
	with:
	node-version: ${{ matrix.node-version }}

	- run: \|
	npm ci
	npm test

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