fix #455: expect dvi output when the engine args contain --no-pdf or … #299

	# For help debugging build failures open an issue on the RStudio community with the 'github-actions' tag.
	# https://community.rstudio.com/new-topic?category=Package%20development&tags=github-actions
	on:
	push:
	branches: [main]
	paths-ignore:
	- '.github/workflows/build.yaml'
	pull_request:
	branches: [main]
	paths-ignore:
	- '.github/workflows/build.yaml'

	name: check required LateX packages

	jobs:
	LateX-Packages:
	runs-on: ubuntu-latest

	name: Ubuntu (release)

	env:
	R_REMOTES_NO_ERRORS_FROM_WARNINGS: true
	GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}

	steps:
	- uses: actions/checkout@v4

	- uses: r-lib/actions/setup-r@v2
	with:
	use-public-rspm: true

	- uses: r-lib/actions/setup-pandoc@v2

	- uses: r-lib/actions/setup-tinytex@v2
	env:
	# install prebuilt base version (infraonly)
	TINYTEX_INSTALLER: TinyTeX-0

	- uses: r-lib/actions/setup-r-dependencies@v2
	with:
	extra-packages: any::curl

	- name: Find required LateX packages
	run: Rscript tools/test-packages.R

Provide feedback