Create latexdiff.yml

.github/workflows/latexdiff.yml

@@ -0,0 +1,63 @@
+name: Generate LaTeX Diff with flatex
+
+on:
+  workflow_dispatch:
+    inputs:
+      base_branch:
+        description: 'Base branch (older version)'
+        required: true
+        default: 'main'
+      compare_branch:
+        description: 'Compare branch (new version)'
+        required: true
+        default: 'dev'
+
+jobs:
+  latexdiff:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout base branch
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.inputs.base_branch }}
+          path: base
+
+      - name: Checkout compare branch
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.inputs.compare_branch }}
+          path: compare
+
+      - name: Install TeX Live and flatex
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y texlive-full
+          pip install flatex
+
+      - name: Create output directory
+        run: mkdir -p diff_output
+
+      - name: Flatten base/main.tex
+        run: |
+          flatex base/latex/main.tex > diff_output/base_flat.tex
+
+      - name: Flatten compare/main.tex
+        run: |
+          flatex compare/latex/main.tex > diff_output/compare_flat.tex
+
+      - name: Generate diff.tex
+        run: |
+          latexdiff diff_output/base_flat.tex diff_output/compare_flat.tex > diff_output/diff.tex
+
+      - name: Compile diff.tex to PDF
+        working-directory: diff_output
+        run: |
+          xelatex -interaction=nonstopmode diff.tex
+          xelatex -interaction=nonstopmode diff.tex
+
+      - name: Upload all diff artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: latex-diff-output
+          path: diff_output/