Action to build docs

.gitea/workflows/ci.yml

@@ -28,3 +28,25 @@ jobs:
       - name: Run tests
         working-directory: ${{runner.workspace}}/build
         run: ctest . --output-on-failure
+  Docs:
+      runs-on: ubuntu-latest
+      steps:
+        - uses: actions/checkout@v3
+
+        - name: Prepare environment
+          run: |
+            apt update
+            apt install -y --no-install-recommends build-essential cmake ninja-build doxygen python3-sphinx
+            pip3 install breathe
+
+        - name: Configure build
+          working-directory: ${{runner.workspace}}
+          run: |
+            cmake . -B${{runner.workspace}}/build \
+                -G"Ninja" \
+                -DCMAKE_BUILD_TYPE=Release \
+                -DSKULLC_WITH_DOCS=ON
+
+        - name: Build docs
+          working-directory: ${{runner.workspace}}/build
+          run: ninja Sphinx