Update and rename arXiv.yml to build_preprint.yml

Author: prathameshnium

.github/workflows/arXiv.yml

@@ -0,0 +1,66 @@
+name: Draft PDF and Preprint Package
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  build-paper:
+    runs-on: ubuntu-latest
+    name: Build Preprint PDF and Package
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Cache apt packages
+        uses: awalsh128/cache-apt-pkgs-action@latest
+        with:
+          packages: pandoc texlive texlive-latex-extra texlive-fonts-recommended texlive-xetex zip
+          version: 1.0
+
+      - name: Create preprint watermark header
+        run: |
+          cat > /tmp/preprint-header.tex << 'EOF'
+          \usepackage{fancyhdr}
+          \usepackage{xcolor}
+          \pagestyle{fancy}
+          \fancyhf{}
+          \fancyhead[C]{\textcolor{red}{\textbf{PREPRINT --- NOT PEER REVIEWED}}}
+          \fancyfoot[C]{\thepage}
+          \renewcommand{\headrulewidth}{0.4pt}
+          EOF
+
+      - name: Generate PDF and Preprint Package
+        run: |
+          cd paper
+
+          # 1. Generate preprint PDF with watermark header
+          pandoc paper.md -o paper.pdf \
+            --standalone \
+            --citeproc \
+            --pdf-engine=xelatex \
+            --include-in-header=/tmp/preprint-header.tex
+
+          # 2. Generate LaTeX source for preprint submission
+          # --citeproc embeds bibliography directly into the .tex file
+          pandoc paper.md -o paper.tex \
+            --standalone \
+            --citeproc \
+            --pdf-engine=xelatex
+
+          # 3. Create preprint submission ZIP
+          # Add any figures here, e.g.: figures/fig1.png
+          zip preprint_submission.zip paper.tex
+
+      - name: Upload Preprint PDF Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: preprint-pdf
+          path: paper/paper.pdf
+
+      - name: Upload Preprint Package Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: preprint-package
+          path: paper/preprint_submission.zip