pnpm was not supported in previous action

Author: João Miguel Marinho da Cunha

.github/workflows/deploy.yaml

@@ -30,37 +30,47 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-      - name: Detect package manager
-        id: detect-package-manager
-        run: |
-          if [ -f "${{ github.workspace }}/yarn.lock" ]; then
-            echo "::set-output name=manager::yarn"
-            echo "::set-output name=command::install"
-            exit 0
-          elif [ -f "${{ github.workspace }}/package.json" ]; then
-            echo "::set-output name=manager::npm"
-            echo "::set-output name=command::ci"
-            exit 0
-          else
-            echo "Unable to determine packager manager"
-            exit 1
-          fi
-      - name: Setup Node
+      - name: Install Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: "16"
-          cache: ${{ steps.detect-package-manager.outputs.manager }}
+          node-version: 16
+
+      - uses: pnpm/action-setup@v2
+        name: Install pnpm
+        id: pnpm-install
+        with:
+          version: 7
+          run_install: false
+
+      - name: Get pnpm store directory
+        id: pnpm-cache
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT
+
+      - uses: actions/cache@v3
+        name: Setup pnpm cache
+        with:
+          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
       - name: Setup Pages
         uses: actions/configure-pages@v2
+
       - name: Install dependencies
-        run: ${{ steps.detect-package-manager.outputs.manager }} ${{ steps.detect-package-manager.outputs.command }}
+        run: pnpm install
+
       - name: Build Demo
         run: npm run build:demo
+
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v1
         with:
           # Upload entire repository
           path: "demo"
+
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v1