ci: Install Doxygen in container and use for doc deployment

.github/workflows/publish-docs.yml

@@ -10,20 +10,16 @@ jobs:
   deploy:
     name: Deploy documentation
     runs-on: ubuntu-22.04
+    container:
+      image: ghcr.io/pulp-platform/snitch_cluster:doxygen-docs
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-python@v4
-        with:
-          python-version: "3.11"
-      - uses: mattnotmitt/doxygen-action@v1
-        with:
-          working-directory: sw/
-      - name: bender install
-        uses: pulp-platform/pulp-actions/bender-install@v2
-        with:
-          version: 0.27.1
-      - name: Install Python requirements
-        run: pip install -r python-requirements.txt
+      # For some reason, the checkout is done by a different user,
+      # than that deploying to Github (root, possibly due to Docker).
+      # So we need to set the repository as a safe directory.
+      - name: Git config safe.directory
+        run: |
+          git config --global --add safe.directory $GITHUB_WORKSPACE
       - name: Generate documentation sources
         run: |
           make doc-srcs

util/container/Dockerfile

@@ -11,6 +11,7 @@ ARG PYTHON_VERSION=3.9.12
 ARG BENDER_VERSION=0.27.1
 ARG SPIKE_DASM_VERSION=0.1.0
 ARG VERILATOR_VERSION=5.006
+ARG DOXYGEN_VERSION=1.12.0
 # Run dpkg without interactive dialogue
 ARG DEBIAN_FRONTEND=noninteractive
 
@@ -90,6 +91,10 @@ RUN tar xzf bender-${BENDER_VERSION}-x86_64-linux-gnu-ubuntu18.04.tar.gz
 RUN wget https://github.com/pulp-platform/riscv-isa-sim/releases/download/snitch-v${SPIKE_DASM_VERSION}/snitch-spike-dasm-${SPIKE_DASM_VERSION}-x86_64-linux-gnu-ubuntu18.04.tar.gz
 RUN tar xzf snitch-spike-dasm-${SPIKE_DASM_VERSION}-x86_64-linux-gnu-ubuntu18.04.tar.gz
 
+# Install Doxygen
+RUN wget https://www.doxygen.nl/files/doxygen-${DOXYGEN_VERSION}.linux.bin.tar.gz
+RUN tar xzf doxygen-${DOXYGEN_VERSION}.linux.bin.tar.gz
+
 # 2. Stage
 FROM ubuntu:22.04 AS snitch_cluster
 ARG SNITCH_LLVM_VERSION=latest
@@ -146,9 +151,11 @@ RUN apt-get update && apt-get install software-properties-common -y && \
 # Copy artifacts from stage 1.
 COPY --from=builder /tools/bender bin/
 COPY --from=builder /tools/spike-dasm bin/
+COPY --from=builder /tools/spike-dasm bin/
 COPY --from=builder /root/.cargo/bin/banshee bin/
 COPY --from=builder /opt/python /opt/python
 COPY --from=builder /tools/verilator /tools/verilator/
+COPY --from=builder /tools/doxygen-${DOXYGEN_VERSION}/bin/doxygen bin/
 
 # Create and activate virtual environment
 ENV VIRTUAL_ENV "/root/.venvs/snitch_cluster"