Error handling for BASE_DIR

Author: pythoninthegrass

.github/workflows/python_test.yml

@@ -32,21 +32,21 @@ jobs:
         path: ~/.local
         key: dotlocal-${{ runner.os }}-${{ hashFiles('.github/workflows/python_test.yml') }}
     # - run: echo '${{ steps.cash-money.outputs.cache-hit }}'     # true if cache-hit occured on the primary key
-    - name: set variables
+    - name: set cwd and change to directory
       run: |
         BASE_DIR=$(cat BASE_DIR)
         echo "BASE_DIR=$BASE_DIR" >> $GITHUB_ENV
-    - run: cd ${{ env.BASE_DIR }}
+        cd ${{ env.BASE_DIR }} || unset BASE_DIR; BASE_DIR=$(pwd) && echo "BASE_DIR=$BASE_DIR" >> $GITHUB_ENV
     - name: Read .tool-versions                                 # dynamic versions
       uses: marocchino/tool-versions-action@v1
       id: versions
       with:
         path: ${{ env.BASE_DIR }}/.tool-versions
-    # - name: shuffle files
-    #   run: |
-    #     cat ${{ env.BASE_DIR }}/.tool-versions | awk '/python/ {print $NF}' >> ${{ env.BASE_DIR }}/.python-version
-    #     [[ -e "$(pwd)/pyproject.toml" ]] && mv "$(pwd)/pyproject.toml" "$(pwd)/pyproject.toml.bak"
-    #     cp "${{ env.BASE_DIR }}/pyproject.toml" $(pwd)/
+    - name: shuffle files
+      run: |
+        cat ${{ env.BASE_DIR }}/.tool-versions | awk '/python/ {print $NF}' >> ${{ env.BASE_DIR }}/.python-version
+        [[ -e "$(pwd)/pyproject.toml" ]] && mv "$(pwd)/pyproject.toml" "$(pwd)/pyproject.toml.bak"
+        cp "${{ env.BASE_DIR }}/pyproject.toml" $(pwd)/
     - name: setup python
       uses: actions/setup-python@v4
       with: