Automatically build doc notebooks (#14718)

* Test workflow

* Build doc

* Make a clean build

* Add doc config

* Restore other workflows

* Final job

* Print something in else statements

* Pull before making changes

.github/workflows/build_documentation.yml

@@ -17,11 +17,19 @@ jobs:
       - uses: actions/checkout@v2
         with:
           repository: 'huggingface/doc-builder'
+          path: doc-builder
+          token: ${{ secrets.HUGGINGFACE_PUSH }}
+      
+      - uses: actions/checkout@v2
+        with:
+          repository: 'huggingface/transformers'
+          path: transformers
+      
+      - uses: actions/checkout@v2
+        with:
+          repository: 'huggingface/notebooks'
+          path: notebooks
           token: ${{ secrets.HUGGINGFACE_PUSH }}
-
-      - name: Clone transformers
-        run: |
-          git clone https://github.com/huggingface/transformers
       
       - name: Loading cache.
         uses: actions/cache@v2
@@ -37,7 +45,7 @@ jobs:
         run: |
           sudo apt-get -y update && sudo apt-get install -y libsndfile1-dev
 
-          pip install git+https://github.com/huggingface/doc-builder
+          pip install git+https://github.com/huggingface/doc-builder@add-install-cell
           pip install git+https://github.com/huggingface/transformers#egg=transformers[dev]
 
           export TORCH_VERSION=$(python -c "from torch import version; print(version.__version__.split('+')[0])")
@@ -55,15 +63,37 @@ jobs:
         run: |
           git config --global user.name "Hugging Face"
           git config --global user.email transformers@huggingface.co
+          
+          cd doc-builder
           git pull origin main
+          cd ..
+
+          cd notebooks
+          git pull origin master
+          cd ..
 
       - name: Make documentation
         run: |
-          doc-builder build transformers ./transformers/docs/source
+          doc-builder build transformers transformers/docs/source --build_dir doc-builder/build --notebook_dir notebooks/transformers_doc --clean
 
-      - name: Push to repository
+      - name: Push to repositories
         run: |
-          git add build
-          git commit -m "Updated with commit ${{ github.sha }}"
-          git push origin main
+          cd doc-builder
+          if [[ `git status --porcelain` ]]; then
+            git add build
+            git commit -m "Updated with commit ${{ github.sha }}"
+            git push origin main
+          else
+            echo "No diff in the documentation."
+          fi
+          cd ..
 
+          cd notebooks
+          if [[ `git status --porcelain` ]]; then
+            git add build
+            git commit -m "Updated Transformer doc notebooks with commit ${{ github.sha }}"
+            git push origin master
+          else
+            echo "No diff in the notebooks."
+          fi
+          cd ..

docs/source/_config.py

+INSTALL_CONTENT = """
+# Transformers installation ! pip install transformers datasets # To install from source instead of the last release,
+comment the command above and uncomment the following one. # ! pip install
+git+https://github.com/huggingface/transformers.git
+"""
+
+notebook_first_cells = [{"type": "code", "content": INSTALL_CONTENT}]
\ No newline at end of file