Add Playwright composite action to reduce workflow duplication (#5754)

This PR introduces a reusable composite action for Playwright setup to
reduce duplication across workflows.

## Changes
- Created `.github/actions/setup-playwright/action.yml` composite action
that:
  - Detects or uses provided Playwright version
  - Caches Playwright browsers with intelligent cache keys
  - Installs browsers only when cache miss occurs
  - Installs OS dependencies when cache hit occurs
  
## Technical Details
- **Important:** The composite action requires `shell: bash` for all
`run` steps as per [GitHub Actions requirements for composite
actions](https://docs.github.com/en/actions/creating-actions/creating-a-composite-action#creating-an-action-metadata-file).
This is a mandatory field for composite actions, unlike regular workflow
steps.
- Updated workflow paths to account for repository checkout locations
(some workflows checkout to subdirectories like `ComfyUI_frontend/`)
- Uses conditional caching to avoid redundant browser installations

## Benefits
- Reduces code duplication across 6 workflow files
- Centralizes Playwright caching logic  
- Consistent browser setup across all workflows
- Easier maintenance and updates
- Faster CI runs through intelligent caching

## Affected Workflows
- `.github/workflows/test-ui.yaml` (2 uses)
- `.github/workflows/i18n-custom-nodes.yaml`
- `.github/workflows/i18n-node-defs.yaml`
- `.github/workflows/i18n.yaml`
- `.github/workflows/test-browser-exp.yaml`

---------

Co-authored-by: GitHub Action <action@github.com>

.github/workflows/tests-ci.yaml

@@ -12,7 +12,6 @@ jobs:
     runs-on: ubuntu-latest
     outputs:
       cache-key: ${{ steps.cache-key.outputs.key }}
-      playwright-version: ${{ steps.playwright-version.outputs.PLAYWRIGHT_VERSION }}
     steps:
       - name: Checkout ComfyUI
         uses: actions/checkout@v5
@@ -65,12 +64,6 @@ jobs:
         id: cache-key
         run: echo "key=$(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
@@ -123,22 +116,8 @@ jobs:
         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: Setup Playwright
+        uses: ./ComfyUI_frontend/.github/actions/setup-playwright
 
       - name: Start ComfyUI server
         run: |
@@ -202,22 +181,8 @@ 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: Setup Playwright
+        uses: ./ComfyUI_frontend/.github/actions/setup-playwright
 
       - name: Start ComfyUI server
         run: |

.github/workflows/update-locales-for-given-custom-node-repository.yaml

@@ -77,9 +77,8 @@ jobs:
         python main.py --cpu --multi-user &
         wait-for-it --service 127.0.0.1:8188 -t 600
       working-directory: ComfyUI
-    - name: Install Playwright Browsers
-      run: pnpm exec playwright install chromium --with-deps
-      working-directory: ComfyUI_frontend
+    - name: Setup Playwright
+      uses: ./ComfyUI_frontend/.github/actions/setup-playwright
     - name: Start dev server
       # Run electron dev server as it is a superset of the web dev server
       # We do want electron specific UIs to be translated.

.github/workflows/update-locales.yaml

@@ -26,16 +26,8 @@ jobs:
         key: i18n-tools-cache-${{ runner.os }}-${{ hashFiles('ComfyUI_frontend/pnpm-lock.yaml') }}
         restore-keys: |
           i18n-tools-cache-${{ runner.os }}-
-    - name: Cache Playwright browsers
-      uses: actions/cache@v4
-      with:
-        path: ~/.cache/ms-playwright
-        key: playwright-browsers-${{ runner.os }}-${{ hashFiles('ComfyUI_frontend/pnpm-lock.yaml') }}
-        restore-keys: |
-          playwright-browsers-${{ runner.os }}-
-    - name: Install Playwright Browsers
-      run: pnpm exec playwright install chromium --with-deps
-      working-directory: ComfyUI_frontend
+    - name: Setup Playwright
+      uses: ./.github/actions/setup-playwright
     - name: Start dev server
       # Run electron dev server as it is a superset of the web dev server
       # We do want electron specific UIs to be translated.

.github/workflows/update-node-definitions-locales.yaml

@@ -13,11 +13,9 @@ jobs:
   update-locales:
     runs-on: ubuntu-latest
     steps:
-    - name: Setup Frontend
-      uses: ./.github/actions/setup-frontend
-    - name: Install Playwright Browsers
-      run: pnpm exec playwright install chromium --with-deps
-      working-directory: ComfyUI_frontend
+    - uses: Comfy-Org/ComfyUI_frontend_setup_action@v3
+    - name: Setup Playwright
+      uses: ./.github/actions/setup-playwright
     - name: Start dev server
       # Run electron dev server as it is a superset of the web dev server
       # We do want electron specific UIs to be translated.

.github/workflows/update-playwright-expectations.yaml

@@ -14,16 +14,8 @@ jobs:
       uses: actions/checkout@v5
     - name: Setup Frontend
       uses: ./.github/actions/setup-frontend
-    - name: Cache Playwright browsers
-      uses: actions/cache@v4
-      with:
-        path: ~/.cache/ms-playwright
-        key: playwright-browsers-${{ runner.os }}-${{ hashFiles('ComfyUI_frontend/pnpm-lock.yaml') }}
-        restore-keys: |
-          playwright-browsers-${{ runner.os }}-
-    - name: Install Playwright Browsers
-      run: pnpm exec playwright install chromium --with-deps
-      working-directory: ComfyUI_frontend
+    - name: Setup Playwright
+      uses: ./.github/actions/setup-playwright
     - name: Run Playwright tests and update snapshots
       id: playwright-tests
       run: pnpm exec playwright test --update-snapshots