Transparency is fine with A-2b & A-4f, so remove unnecessary cruft. #123

	name: Verify PDF compatibility

	on:
	push:
	branches:
	- main
	- devel
	- legacy
	pull_request:
	branches:
	- main
	- devel
	- legacy

	jobs:
	build_latex:
	runs-on: ubuntu-latest
	steps:
	- name: Check out repository code
	uses: actions/checkout@v4

	- name: Set build configuration
	run: \|
	# GITHUB_HEAD_REF is set for pull_request events (source branch);
	# fall back to GITHUB_REF suffix for push events.
	BRANCH="${GITHUB_HEAD_REF:-${GITHUB_REF##*/}}"
	if [ "$BRANCH" = "devel" ]; then
	echo "COMPILER=lualatex" >> "$GITHUB_ENV"
	echo "PDF_FLAVORS=4f" >> "$GITHUB_ENV"
	else
	echo "COMPILER=pdflatex" >> "$GITHUB_ENV"
	echo "PDF_FLAVORS=1b" >> "$GITHUB_ENV"
	fi

	- name: Install TexLive and dependencies
	uses: zauguin/install-texlive@v4
	with:
	package_file: texlive-basic-packages.txt

	- name: Compile LaTeX document (1st pass)
	run: $COMPILER -halt-on-error main.tex

	- name: Run bibliography tool
	run: \|
	case "${GITHUB_REF##*/}" in
	legacy)
	echo "Running bibtex..."
	bibtex main
	;;
	*)
	echo "Running biber..."
	biber --validate-datamodel main
	;;
	esac

	- name: Compile LaTeX document (2nd pass)
	run: $COMPILER -halt-on-error main.tex

	- name: Verify PDF
	run: \|
	if [ "$ACT" = "true" ]; then
	echo "No docker in ACT"
	else
	for flavor in $PDF_FLAVORS; do
	echo "--- Validating PDF/$flavor ---"
	docker run --rm -t -v "$(pwd):/data" docker.io/verapdf/cli:v1.30.2 -f "$flavor" main.pdf
	done
	fi

	- name: Upload PDF
	uses: actions/upload-artifact@v4
	with:
	name: pdf
	path: main.pdf

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