devex: re-add caching of playwright browser installs

.github/workflows/test-ui.yaml

@@ -12,6 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     outputs:
       cache-key: ${{ steps.cache-key.outputs.key }}
+      playwright-version: ${{ steps.playwright-version.outputs.PLAYWRIGHT_VERSION }}
     steps:
       - name: Checkout ComfyUI
         uses: actions/checkout@v4
@@ -66,6 +67,13 @@ jobs:
         id: cache-key
         run: echo "key=$(date +%s)" >> $GITHUB_OUTPUT
 
+      - name: Playwright Version
+        id: playwright-version
+        run:  |
+          PLAYWRIGHT_VERSION=$(pnpm ls @playwright/test --json | jq --raw-output '.[0].devDependencies["@playwright/test"].version')
+          echo "PLAYWRIGHT_VERSION=$PLAYWRIGHT_VERSION" >> $GITHUB_OUTPUT
+        working-directory: ComfyUI_frontend
+
       - name: Save cache
         uses: actions/cache/save@5a3ec84eff668545956fd18022155c47e93e2684
         with:
@@ -116,16 +124,30 @@ jobs:
           pip install wait-for-it
         working-directory: ComfyUI
 
+
+      - name: Cache Playwright Browsers
+        uses: actions/cache@v4
+        id: cache-playwright-browsers
+        with:
+          path: '~/.cache/ms-playwright'
+          key: '${{ runner.os }}-playwright-browsers-${{ needs.setup.outputs.playwright-version }}'
+
+      - name: Install Playwright Browsers
+        if: steps.cache-playwright-browsers.outputs.cache-hit != 'true'
+        run: pnpm exec playwright install chromium --with-deps
+        working-directory: ComfyUI_frontend
+
+      - name: Install Playwright Browsers (operating system dependencies)
+        if: steps.cache-playwright-browsers.outputs.cache-hit == 'true'
+        run: pnpm exec playwright install-deps
+        working-directory: ComfyUI_frontend
+
       - name: Start ComfyUI server
         run: |
           python main.py --cpu --multi-user --front-end-root ../ComfyUI_frontend/dist &
           wait-for-it --service 127.0.0.1:8188 -t 600
         working-directory: ComfyUI
 
-      - name: Install Playwright Browsers
-        run: npx playwright install chromium --with-deps
-        working-directory: ComfyUI_frontend
-
       - name: Run Playwright tests (Shard ${{ matrix.shardIndex }}/${{ matrix.shardTotal }})
         id: playwright
         run: npx playwright test --project=chromium --shard=${{ matrix.shardIndex }}/${{ matrix.shardTotal }} --reporter=blob
@@ -141,7 +163,7 @@ jobs:
           retention-days: 1
 
   playwright-tests:
-  # Ideally, each shard runs test in 6 minutes, but allow up to 15 minutes
+    # Ideally, each shard runs test in 6 minutes, but allow up to 15 minutes
     timeout-minutes: 15
     needs: setup
     runs-on: ubuntu-latest
@@ -182,16 +204,29 @@ jobs:
           pip install wait-for-it
         working-directory: ComfyUI
 
+      - name: Cache Playwright Browsers
+        uses: actions/cache@v4
+        id: cache-playwright-browsers
+        with:
+          path: '~/.cache/ms-playwright'
+          key: '${{ runner.os }}-playwright-browsers-${{ needs.setup.outputs.playwright-version }}'
+
+      - name: Install Playwright Browsers
+        if: steps.cache-playwright-browsers.outputs.cache-hit != 'true'
+        run: pnpm exec playwright install chromium --with-deps
+        working-directory: ComfyUI_frontend
+
+      - name: Install Playwright Browsers (operating system dependencies)
+        if: steps.cache-playwright-browsers.outputs.cache-hit == 'true'
+        run: pnpm exec playwright install-deps
+        working-directory: ComfyUI_frontend
+
       - name: Start ComfyUI server
         run: |
           python main.py --cpu --multi-user --front-end-root ../ComfyUI_frontend/dist &
           wait-for-it --service 127.0.0.1:8188 -t 600
         working-directory: ComfyUI
 
-      - name: Install Playwright Browsers
-        run: npx playwright install chromium --with-deps
-        working-directory: ComfyUI_frontend
-
       - name: Run Playwright tests (${{ matrix.browser }})
         id: playwright
         run: npx playwright test --project=${{ matrix.browser }} --reporter=html
@@ -248,4 +283,4 @@ jobs:
         with:
           name: playwright-report-chromium
           path: ComfyUI_frontend/playwright-report/
-          retention-days: 30
+          retention-days: 30