Update nightly.yml

.github/workflows/nightly.yml

@@ -23,6 +23,15 @@ jobs:
       uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python-version }}
+    
+    - name: Setup pip cache
+      uses: actions/cache@v3
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+    
     - name: Compute version
       run: |
         package_version="$(printf '%(%Y%m%d)T.${{ github.run_number }}')"
@@ -43,34 +52,30 @@ jobs:
         prerelease: false        
     - name: Install dependencies
       run: |
-        cd $GITHUB_WORKSPACE
-        IMPORTER=1 ./setup_venv.sh
-        source shark.venv/bin/activate
         python -m pip install --upgrade pip
         python -m pip install flake8 pytest yapf toml
         if [ -f requirements.txt ]; then pip install -r requirements.txt --extra-index-url https://download.pytorch.org/whl/nightly/cpu  -f https://github.com/llvm/torch-mlir/releases -f https://github.com/nod-ai/SHARK-Runtime/releases; fi
     - name: Lint with flake8
       run: |
-        source shark.venv/bin/activate
         # stop the build if there are Python syntax errors or undefined names
         flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics --exclude shark.venv,lit.cfg.py 
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics --exclude shark.venv,lit.cfg.py 
         yapf -i --style .style.yapf shark/*.py
 
-    - name: Build the package
+    - name: Build and validate the package
       run: |
+        cd $GITHUB_WORKSPACE
+        IMPORTER=1 ./setup_venv.sh
         source shark.venv/bin/activate
         package_version="$(printf '%(%Y%m%d)T.${{ github.run_number }}')"
         SHARK_PACKAGE_VERSION=${package_version} \
         pip wheel -v -w wheelhouse . --extra-index-url https://download.pytorch.org/whl/nightly/cpu  -f https://github.com/llvm/torch-mlir/releases -f https://github.com/nod-ai/SHARK-Runtime/releases
+        # Install the built wheel
         pip install ./wheelhouse/nodai*
-        
-    - name: Validate Models
-      run: |
-        source shark.venv/bin/activate
+        # Validate the Models
         pytest -k 'not benchmark' --ignore=shark/tests/test_hf_benchmark.py --ignore=shark/tests/test_shark_importer.py
-        
+    
     - name: Upload Release Assets
       id: upload-release-assets
       uses: dwenegar/upload-release-assets@v1