generate pdf on CI

.github/workflows/integration.yml

@@ -8,7 +8,48 @@ on:
 run-name: Code Integration [${{ github.event_name }}][${{ github.head_ref || github.ref_name }}] rev.${{ github.sha }}
 
 jobs:
+  docs-linux:
+    if: true
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        shell: bash
+
+    env:
+      GO_VERSION: 1.20.14
+      PANDOC_VERSION: 3.3
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          clean: true
+          submodules: false
+
+      - name: Install Pandoc
+        uses: pandoc/actions/setup@{main}
+        with:
+          version: ${{ env.PANDOC_VERSION }}
+
+      - name: Install TeXlive
+        run: sudo apt-get update && sudo apt-get install texlive-full
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      - name: Generate PDF
+        run: |
+          cd docs/
+          go generate
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: qpep_user_manual
+          path: "docs/*.pdf"
+
   build-linux:
+    if: false
     runs-on: ubuntu-latest
     env:
       GO_VERSION: 1.20.14
@@ -118,6 +159,7 @@ jobs:
           path: "report/*.html"
 
   build-windows:
+    if: false
     runs-on: windows-latest
     env:
       GO_VERSION: 1.20.14