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Paper 1 v11.4 -> v11.5: Lawvere fixed-point theorem as unification of… #9

	name: Build paper PDFs

	on:
	push:
	branches: [main]
	paths:
	- 'papers/*/.md'
	- '.github/workflows/build-pdfs.yml'
	workflow_dispatch:

	permissions:
	contents: write

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

	- name: Install pandoc and LaTeX
	run: \|
	sudo apt-get update
	sudo apt-get install -y pandoc texlive-xetex texlive-fonts-recommended texlive-plain-generic lmodern

	- name: Build PDFs for each paper
	run: \|
	set -e
	mkdir -p build/pdf
	for md in papers//.md; do
	dir=$(dirname "$md")
	name=$(basename "$md" .md)
	out="build/pdf/${name}-latest.pdf"
	echo "Building $out from $md"
	pandoc "$md" \
	--pdf-engine=xelatex \
	--toc \
	--number-sections \
	--highlight-style=tango \
	-V mainfont='DejaVu Serif' \
	-V sansfont='DejaVu Sans' \
	-V monofont='DejaVu Sans Mono' \
	-V geometry:margin=1in \
	-V fontsize=11pt \
	-o "$out" \|\| {
	echo "PDF build failed for $md; producing plain output without XeLaTeX fallback fonts"
	pandoc "$md" \
	--pdf-engine=xelatex \
	--toc \
	--number-sections \
	-V geometry:margin=1in \
	-V fontsize=11pt \
	-o "$out"
	}
	done
	ls -la build/pdf/

	- name: Upload PDFs as workflow artifact
	uses: actions/upload-artifact@v4
	with:
	name: paper-pdfs
	path: build/pdf/*.pdf
	retention-days: 90

	- name: Attach to latest release (if tagged)
	if: startsWith(github.ref, 'refs/tags/')
	uses: softprops/action-gh-release@3bb12739c298aeb8a4eeaf626c5b8d85266b0e65 # v2
	with:
	files: build/pdf/*.pdf
	fail_on_unmatched_files: false