🎨 update publish action

.github/workflows/publish.yml

@@ -7,9 +7,53 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - name: Build and publish to pypi
-      uses: JRubics/[email protected]
-      working-directory: ./backend
-      with:
-        pypi_token: ${{ secrets.PYPI_TOKEN }}
+      #----------------------------------------------
+      #       check-out repo and set-up python     
+      #----------------------------------------------
+      - name: Check out repository
+        uses: actions/checkout@v2
+      - name: Set up python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      #----------------------------------------------
+      #  -----  install & configure poetry  -----      
+      #----------------------------------------------
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+      #----------------------------------------------
+      #       load cached venv if cache exists      
+      #----------------------------------------------
+      - name: Load cached venv
+        id: cached-poetry-dependencies
+        uses: actions/cache@v2
+        with:
+          path: .venv
+          key: venv-${{ runner.os }}-${{ hashFiles('**/poetry.lock') }}
+      #----------------------------------------------
+      # install dependencies if cache does not exist 
+      #----------------------------------------------
+      - name: Install dependencies
+        if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
+        run: poetry install --no-interaction --no-root
+        working-directory: ./backend
+      #----------------------------------------------
+      # install your root project, if required 
+      #----------------------------------------------      
+      - name: Install library
+        run: poetry install --no-interaction
+        working-directory: ./backend
+      - name: Build library
+        run: poetry build
+        working-directory: ./backend
+      - name: Publish library
+        env:
+          PYPI_TOKEN: ${{ secrets.PYPI_TOKEN }}
+        run: |
+          poetry config pypi-token.pypi $PYPI_TOKEN
+          poetry publish
+        working-directory: ./backend
+