Create GitHub Action for documentation generation

.github/workflows/docs.yml

@@ -0,0 +1,65 @@
+name: docs
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build and publish documentation
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+        submodules: recursive
+    - name: Install Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.12'
+    - name: Install dependencies
+      run: |
+        # Setup Doxygen
+        wget https://sourceforge.net/projects/doxygen/files/rel-1.9.5/doxygen-1.9.5.linux.bin.tar.gz
+        tar -xvf doxygen-1.9.5.linux.bin.tar.gz
+        cp doxygen-1.9.5/bin/doxygen /usr/local/bin
+
+        # Setup m.css
+        pip install jinja2 pygments docutils
+        # git clone https://github.com/mosra/m.css
+        # TODO: Checkout a specific version here.
+        # FIXME: Migrate off of my fork once PR is accepted.
+        git clone https://github.com/parker-research/m.css --branch fix-pathlike-and-test
+    - name: Build and install with Pip
+      run: |
+        python -m pip install --upgrade pip
+        pip install .
+    - name: Build docs
+      run: |
+        ./m.css/documentation/python.py ./docs/conf.py
+        du -a ./build/docs/
+        du -a ./build/stubs/
+    - name: Upload
+      if: github.event_name != 'pull_request'
+      uses: appleboy/scp-action@master
+      with:
+        host: ${{ secrets.SSH_DEPLOY_HOST }}
+        username: ${{ secrets.SSH_DEPLOY_USERNAME }}
+        port: ${{ secrets.SSH_DEPLOY_PORT }}
+        key: ${{ secrets.SSH_DEPLOY_KEY }}
+        passphrase: ${{ secrets.SSH_DEPLOY_PASSPHRASE }}
+        source: slang.tar.gz
+        target: upload/
+    - name: Deploy
+      if: github.event_name != 'pull_request'
+      uses: appleboy/ssh-action@master
+      with:
+        host: ${{ secrets.SSH_DEPLOY_HOST }}
+        username: ${{ secrets.SSH_DEPLOY_USERNAME }}
+        port: ${{ secrets.SSH_DEPLOY_PORT }}
+        key: ${{ secrets.SSH_DEPLOY_KEY }}
+        passphrase: ${{ secrets.SSH_DEPLOY_PASSPHRASE }}
+        script: slang-website/deploy_docs.sh