Add GHA for doc

.github/workflows/doc.yml

@@ -0,0 +1,53 @@
+name: Documentation Tests
+
+on: [push, pull_request]
+
+jobs:
+  CheckDocs:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python 3.8
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get -qq update
+          sudo apt-get install -y git cmake graphviz libavahi-common-dev libavahi-client-dev libaio-dev libusb-1.0-0-dev libxml2-dev rpm tar bzip2 gzip flex bison git libzstd-dev doxygen
+          mkdir build
+          cd build
+          cmake .. -DWITH_MAN=ON -DHAVE_DNS_SD=OFF
+          make
+          cd ..
+          cd docs
+          pip install -r requirements_doc.txt
+          cd ..
+
+      - name: Build man pages
+        run: |
+          cd docs
+          python man_to_rst.py
+          cd ..
+
+      - name: Check doc build
+        run: |
+          cd doc
+          make html SPHINXOPTS="-W"
+          cd ..
+
+      - name: Check doc coverage
+        run: |
+          cd doc
+          make coverage
+          cat build/coverage/python.txt
+          cat build/coverage/python.txt | wc -l | xargs -I % test % -eq 2
+          cd ..
+
+      - name: Check doc links
+        run: |
+          cd doc
+          make linkcheck
+          cd ..