[melobot] Add docs build workflow

Author: aicorein

.github/workflows/mkdoc.yml

@@ -0,0 +1,52 @@
+name: makedoc
+
+on:
+  push:
+    branches:    
+      main
+
+  pull_request:
+    branches:    
+      main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    - name: Setup Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.10' 
+
+    - name: Build the doc
+      run: |
+        cd docs/ && pip install -r requirements.txt
+        make html && cd ..
+
+    - name: Refresh changes and commit
+      run: |
+        git clone https://github.com/Meloland/melobot.git --branch gh-pages --single-branch gh-pages
+        mkdir tmp-files && cd gh-pages
+        mv CNAME .nojekyll README.md .git ../tmp-files
+        rm -rf * && rm .buildinfo && cd ..
+        cp -r docs/build/html/* gh-pages
+        cp docs/build/html/.buildinfo gh-pages
+        mv tmp-files/* tmp-files/.git tmp-files/.nojekyll gh-pages
+        rmdir tmp-files
+        cd gh-pages
+        git config --local user.email "action@github.com"
+        git config --local user.name "GitHub Action"
+        git add .
+        git commit -m "Update doc by Github Action" -a || true
+        cd ..
+
+    - name: Push changes
+      uses: ad-m/github-push-action@master
+      with:
+        branch: gh-pages
+        directory: gh-pages
+        github_token: ${{ secrets.GITHUB_TOKEN }}