refactor: run unit tests only for affected plugins

Author: aman19K

.github/workflows/unit-test.yml

@@ -20,6 +20,24 @@ jobs:
         run: |
           npm run setup-repo-old
 
-      - name: Run tests for Audit plugin
-        working-directory: ./packages/contentstack-audit
-        run: npm run test:unit
+      - name: Identify Changed Plugins
+        id: changes
+        run: |
+          echo "Finding changed files..."
+          CHANGED_FILES=$(git diff --name-only ${{ github.event.before }} ${{ github.sha }})
+          echo "Changed files:"
+          echo "$CHANGED_FILES"
+          
+          # Identify affected plugins
+          AFFECTED_PLUGINS=$(echo "$CHANGED_FILES" | grep -oP '(?<=^packages/)([^/]+)' | sort -u | tr '\n' ' ')
+          echo "Affected plugins: $AFFECTED_PLUGINS"
+          
+          # Set output for the next step
+          echo "::set-output name=affected_plugins::$AFFECTED_PLUGINS"
+
+      - name: Run Unit Tests for Affected Plugins
+        run: |
+          for plugin in ${{ steps.changes.outputs.affected_plugins }}; do
+            echo "Running tests for $plugin..."
+            npm run test:unit --prefix ./packages/$plugin
+          done