Fix device automations

Revert "Fix drag and drop when using action and trigger selector (#22291)"

This reverts commit 99035cea8f.

.browserslistrc

@@ -0,0 +1,42 @@
+[modern]
+# Modern builds target recent browsers supporting the latest features to minimize transpilation, polyfills, etc.
+# It is served to browsers meeting the following requirements:
+# - released in the last year + current alpha/beta versions
+# - Firefox extended support release (ESR)
+# - with global utilization at or above 0.5%
+# - must support dynamic import of ES modules
+# - exclude browsers no longer being maintained
+# - exclude KaiOS, QQ, and UC browsers due to lack of sufficient feature support data
+unreleased versions
+last 1 year
+Firefox ESR
+>= 0.5% and supports es6-module-dynamic-import
+not dead
+not KaiOS > 0
+not QQAndroid > 0
+not UCAndroid > 0
+
+[legacy]
+# Legacy builds are served when modern requirements are not met and support browsers:
+# - released in the last 7 years + current alpha/beta versionss
+# - with global utilization at or above 0.05%
+# The lattermost query ensures that support for popular old browsers is not dropped too early
+# (e.g. IE 11, Android 4.4, or Samsung 4).
+#
+# In addition, legacy browsers must support some minimum features that cannot be polyfilled:
+# - ES5 (strict mode)
+# - web sockets to communicate with backend
+# - inline SVG used widely in buttons, widgets, etc.
+# - custom events used for most user interactions
+# - CSS flexbox used in the majority of the layout
+# Nearly all of these are redundant with the above rules.
+# As of May 2023, only web sockets must be added to the query.
+unreleased versions
+last 7 years
+>= 0.05% and supports websockets
+
+[legacy-sw]
+# Same as legacy plus supports service workers
+unreleased versions
+last 7 years
+>= 0.05% and supports websockets and supports serviceworkers

.devcontainer/Dockerfile

@@ -1,13 +1,7 @@
 # See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.148.1/containers/python-3/.devcontainer/base.Dockerfile
-FROM mcr.microsoft.com/vscode/devcontainers/python:0-3.10
+FROM mcr.microsoft.com/devcontainers/python:3.12
 
 ENV \
   DEBIAN_FRONTEND=noninteractive \
   DEVCONTAINER=true \
   PATH=$PATH:./node_modules/.bin
-
-# Install nvm
-COPY .nvmrc /tmp/.nvmrc
-RUN \
-  su vscode -c \
-    "source /usr/local/share/nvm/nvm.sh && nvm install $(cat /tmp/.nvmrc) 2>&1"

.devcontainer/devcontainer.json

@@ -5,8 +5,10 @@
     "context": ".."
   },
   "appPort": "8124:8123",
-  "postCreateCommand": "script/bootstrap",
+  "postCreateCommand": "sudo apt update && sudo apt upgrade -y && sudo apt install -y libpcap-dev",
+  "postStartCommand": "script/bootstrap",
   "containerEnv": {
+    "DEV_CONTAINER": "1",
     "WORKSPACE_DIRECTORY": "${containerWorkspaceFolder}"
   },
   "customizations": {

.eslintrc.json

@@ -115,6 +115,7 @@
       }
     ],
     "unused-imports/no-unused-imports": "error",
+    "lit/attribute-names": "warn",
     "lit/attribute-value-entities": "off",
     "lit/no-template-map": "off",
     "lit/no-native-attributes": "warn",
@@ -125,6 +126,5 @@
     "lit-a11y/anchor-is-valid": "warn",
     "lit-a11y/role-has-required-aria-attrs": "warn"
   },
-  "plugins": ["disable", "unused-imports"],
-  "processor": "disable/disable"
+  "plugins": ["unused-imports"]
 }

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -9,7 +9,7 @@ body:
 
         If you have a feature or enhancement request for the frontend, please [start an discussion][fr] instead of creating an issue.
 
-        **Please not not report issues for custom cards.**
+        **Please do not report issues for custom cards.**
 
         [fr]: https://github.com/home-assistant/frontend/discussions
         [releases]: https://github.com/home-assistant/home-assistant/releases
@@ -24,6 +24,7 @@ body:
           required: true
         - label: I have tried a different browser to see if it is related to my browser.
           required: true
+        - label: I have tried reproducing the issue in [safe mode](https://www.home-assistant.io/blog/2023/11/01/release-202311/#restarting-into-safe-mode) to rule out problems with unsupported custom resources.
   - type: markdown
     attributes:
       value: |

.github/PULL_REQUEST_TEMPLATE.md

@@ -2,9 +2,7 @@
   You are amazing! Thanks for contributing to our project!
   Please, DO NOT DELETE ANY TEXT from this template! (unless instructed).
 -->
-
 ## Breaking change
-
 <!--
   If your PR contains a breaking change for existing users, it is important
   to tell them what breaks, how to make it work again and why we did this.
@@ -13,8 +11,8 @@
   Note: Remove this section if this PR is NOT a breaking change.
 -->
 
-## Proposed change
 
+## Proposed change
 <!--
   Describe the big picture of your changes here to communicate to the
   maintainers why we should accept this pull request. If it fixes a bug
@@ -22,8 +20,8 @@
   in the additional information section.
 -->
 
-## Type of change
 
+## Type of change
 <!--
   What type of change does your PR introduce to the Home Assistant frontend?
   NOTE: Please, check only 1! box!
@@ -38,7 +36,6 @@
 - [ ] Code quality improvements to existing code or addition of tests
 
 ## Example configuration
-
 <!--
   Supplying a configuration snippet, makes it easier for a maintainer to test
   your PR.
@@ -49,7 +46,6 @@
 ```
 
 ## Additional information
-
 <!--
   Details are important, and help maintainers processing your PR.
   Please be sure to fill out additional details, if applicable.
@@ -60,7 +56,6 @@
 - Link to documentation pull request:
 
 ## Checklist
-
 <!--
   Put an `x` in the boxes that apply. You can also fill these out after
   creating the PR. If you're unsure about any of them, don't hesitate to ask.

.github/dependabot.yml

@@ -6,3 +6,6 @@ updates:
       interval: weekly
       time: "06:00"
     open-pull-requests-limit: 10
+    labels:
+      - Dependencies
+      - GitHub Actions

.github/labeler.yml

@@ -0,0 +1,51 @@
+Build:
+  - changed-files:
+      - any-glob-to-any-file:
+          - build-scripts/**
+          - .browserslistrc
+          - gulpfile.js
+
+Cast:
+  - changed-files:
+      - any-glob-to-any-file:
+          - cast/src/**
+          - src/cast/**
+
+Demo:
+  - changed-files:
+      - any-glob-to-any-file:
+          - demo/src/**
+          - src/fake_data/**
+
+Design:
+  - changed-files:
+      - any-glob-to-any-file:
+          - gallery/src/**
+          - src/fake_data/**
+
+Dependencies:
+  - any:
+      - changed-files:
+          # Match when only these files are changed (i.e. don't match PRs that happen to add or remove packages)
+          - any-glob-to-all-files:
+              - package.json
+              - renovate.json
+              - yarn.lock
+              - .yarn/**
+              - .yarnrc.yml
+              - .nvmrc
+      # Dependabot and Renovate branches always match (i.e. compatibility tweaks by members considered minor)
+      - head-branch:
+          - "^renovate/"
+          - "^dependabot/"
+
+GitHub Actions:
+  - changed-files:
+      - any-glob-to-any-file:
+          - .github/workflows/**
+          - .github/*.yml
+
+Supervisor:
+  - changed-files:
+      - any-glob-to-any-file:
+          - hassio/src/**

.github/release-drafter.yml

@@ -1,3 +1,8 @@
+categories:
+  - title: "Dependency updates"
+    collapse-after: 3
+    labels:
+      - "Dependencies"
 template: |
   ## What's Changed
 

.github/workflows/cast_deployment.yaml

@@ -9,7 +9,6 @@ on:
       - master
 
 env:
-  NODE_VERSION: 16
   NODE_OPTIONS: --max_old_space_size=6144
 
 jobs:
@@ -22,14 +21,14 @@ jobs:
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.5.0
+        uses: actions/checkout@v4.2.0
         with:
           ref: dev
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies
@@ -58,14 +57,14 @@ jobs:
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.5.0
+        uses: actions/checkout@v4.2.0
         with:
           ref: master
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies

.github/workflows/ci.yaml

@@ -11,7 +11,6 @@ on:
       - master
 
 env:
-  NODE_VERSION: 16
   NODE_OPTIONS: --max_old_space_size=6144
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -25,11 +24,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.5.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+        uses: actions/checkout@v4.2.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
       - name: Install dependencies
         run: yarn install --immutable
@@ -37,10 +36,21 @@ jobs:
         run: yarn dedupe --check
       - name: Build resources
         run: ./node_modules/.bin/gulp gen-icons-json build-translations build-locale-data gather-gallery-pages
+      - name: Setup lint cache
+        uses: actions/cache@v4.1.0
+        with:
+          path: |
+            node_modules/.cache/prettier
+            node_modules/.cache/eslint
+            node_modules/.cache/typescript
+          key: lint-${{ github.sha }}
+          restore-keys: lint-
       - name: Run eslint
         run: yarn run lint:eslint --quiet
       - name: Run tsc
         run: yarn run lint:types
+      - name: Run lit-analyzer
+        run: yarn run lint:lit --quiet
       - name: Run prettier
         run: yarn run lint:prettier
   test:
@@ -48,16 +58,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.5.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+        uses: actions/checkout@v4.2.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
       - name: Install dependencies
         run: yarn install --immutable
       - name: Build resources
-        run: ./node_modules/.bin/gulp build-translations build-locale-data
+        run: ./node_modules/.bin/gulp gen-icons-json build-translations build-locale-data
       - name: Run Tests
         run: yarn run test
   build:
@@ -66,11 +76,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.5.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+        uses: actions/checkout@v4.2.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
       - name: Install dependencies
         run: yarn install --immutable
@@ -78,17 +88,23 @@ jobs:
         run: ./node_modules/.bin/gulp build-app
         env:
           IS_TEST: "true"
+      - name: Upload bundle stats
+        uses: actions/upload-artifact@v4.4.0
+        with:
+          name: frontend-bundle-stats
+          path: build/stats/*.json
+          if-no-files-found: error
   supervisor:
     name: Build supervisor
     needs: [lint, test]
     runs-on: ubuntu-latest
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.5.0
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+        uses: actions/checkout@v4.2.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
       - name: Install dependencies
         run: yarn install --immutable
@@ -96,3 +112,9 @@ jobs:
         run: ./node_modules/.bin/gulp build-hassio
         env:
           IS_TEST: "true"
+      - name: Upload bundle stats
+        uses: actions/upload-artifact@v4.4.0
+        with:
+          name: supervisor-bundle-stats
+          path: build/stats/*.json
+          if-no-files-found: error

.github/workflows/codeql-analysis.yml

@@ -17,44 +17,44 @@ jobs:
       matrix:
         # Override automatic language detection by changing the below list
         # Supported options are ['csharp', 'cpp', 'go', 'java', 'javascript', 'python']
-        language: ['javascript']
+        language: ["javascript"]
         # Learn more...
         # https://docs.github.com/en/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#overriding-automatic-language-detection
 
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v3.5.0
-      with:
-        # We must fetch at least the immediate parents so that if this is
-        # a pull request then we can checkout the head.
-        fetch-depth: 2
+      - name: Checkout repository
+        uses: actions/checkout@v4.2.0
+        with:
+          # We must fetch at least the immediate parents so that if this is
+          # a pull request then we can checkout the head.
+          fetch-depth: 2
 
-    # If this run was triggered by a pull request event, then checkout
-    # the head of the pull request instead of the merge commit.
-    - run: git checkout HEAD^2
-      if: ${{ github.event_name == 'pull_request' }}
+      # If this run was triggered by a pull request event, then checkout
+      # the head of the pull request instead of the merge commit.
+      - run: git checkout HEAD^2
+        if: ${{ github.event_name == 'pull_request' }}
 
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
-      with:
-        languages: ${{ matrix.language }}
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
 
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v2
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below)
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v3
 
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
+      # ℹ️ Command-line programs to run using the OS shell.
+      # 📚 https://git.io/JvXDl
 
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
+      # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+      #    and modify them (or add more) to build your code if your project
+      #    uses a compiled language
 
-    #- run: |
-    #   make bootstrap
-    #   make release
+      #- run: |
+      #   make bootstrap
+      #   make release
 
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3

.github/workflows/demo_deployment.yaml

@@ -10,27 +10,26 @@ on:
       - master
 
 env:
-  NODE_VERSION: 16
   NODE_OPTIONS: --max_old_space_size=6144
 
 jobs:
   deploy_dev:
     runs-on: ubuntu-latest
     name: Demo Development
-    if: github.event_name != 'push' || github.ref != 'master'
+    if: github.event_name != 'push' || github.ref_name != 'master'
     environment:
       name: Demo Development
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.5.0
+        uses: actions/checkout@v4.2.0
         with:
           ref: dev
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies
@@ -53,20 +52,20 @@ jobs:
   deploy_master:
     runs-on: ubuntu-latest
     name: Demo Production
-    if: github.event_name == 'push' && github.ref == 'master'
+    if: github.event_name == 'push' && github.ref_name == 'master'
     environment:
       name: Demo Production
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.5.0
+        uses: actions/checkout@v4.2.0
         with:
           ref: master
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies

.github/workflows/design_deployment.yaml

@@ -6,7 +6,6 @@ on:
     - cron: "0 0 * * *"
 
 env:
-  NODE_VERSION: 16
   NODE_OPTIONS: --max_old_space_size=6144
 
 jobs:
@@ -17,12 +16,12 @@ jobs:
       url: ${{ steps.deploy.outputs.NETLIFY_LIVE_URL || steps.deploy.outputs.NETLIFY_URL }}
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.5.0
+        uses: actions/checkout@v4.2.0
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies

.github/workflows/design_preview.yaml

@@ -11,7 +11,6 @@ on:
       - dev
 
 env:
-  NODE_VERSION: 16
   NODE_OPTIONS: --max_old_space_size=6144
 
 jobs:
@@ -22,12 +21,12 @@ jobs:
     if: github.repository == 'home-assistant/frontend' && contains(github.event.pull_request.labels.*.name, 'needs design preview')
     steps:
       - name: Check out files from GitHub
-        uses: actions/checkout@v3.5.0
+        uses: actions/checkout@v4.2.0
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies

.github/workflows/labeler.yaml

@@ -0,0 +1,15 @@
+name: "Pull Request Labeler"
+
+on: pull_request_target
+
+jobs:
+  triage:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Apply labels
+        uses: actions/labeler@v5.0.0
+        with:
+          sync-labels: true

.github/workflows/lock.yml

@@ -9,9 +9,10 @@ jobs:
   lock:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@v4.0.0
+      - uses: dessant/lock-threads@v5.0.1
         with:
           github-token: ${{ github.token }}
+          process-only: "issues, prs"
           issue-lock-inactive-days: "30"
           issue-exclude-created-before: "2020-10-01T00:00:00Z"
           issue-lock-reason: ""

.github/workflows/nightly.yaml

@@ -6,8 +6,7 @@ on:
     - cron: "0 1 * * *"
 
 env:
-  PYTHON_VERSION: "3.10"
-  NODE_VERSION: 16
+  PYTHON_VERSION: "3.12"
   NODE_OPTIONS: --max_old_space_size=6144
 
 permissions:
@@ -21,17 +20,17 @@ jobs:
       contents: write
     steps:
       - name: Checkout the repository
-        uses: actions/checkout@v3.5.0
+        uses: actions/checkout@v4.2.0
 
       - name: Set up Python ${{ env.PYTHON_VERSION }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies
@@ -43,7 +42,7 @@ jobs:
           LOKALISE_TOKEN: ${{ secrets.LOKALISE_TOKEN }}
 
       - name: Bump version
-        run: script/version_bump.cjs nightly
+        run: script/version_bump.js nightly
 
       - name: Build nightly Python wheels
         run: |
@@ -58,14 +57,14 @@ jobs:
         run: tar -czvf translations.tar.gz translations
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4.4.0
         with:
           name: wheels
           path: dist/home_assistant_frontend*.whl
           if-no-files-found: error
 
       - name: Upload translations
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4.4.0
         with:
           name: translations
           path: translations.tar.gz

.github/workflows/relative-ci.yaml

@@ -0,0 +1,25 @@
+name: RelativeCI
+
+on:
+  workflow_run:
+    workflows: [CI]
+    types:
+      - completed
+
+jobs:
+  upload:
+    name: Upload stats
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    strategy:
+      matrix:
+        bundle: [frontend, supervisor]
+        build: [modern, legacy]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Send bundle stats and build information to RelativeCI
+        uses: relative-ci/agent-action@v2.1.12
+        with:
+          key: ${{ secrets[format('RELATIVE_CI_KEY_{0}_{1}', matrix.bundle, matrix.build)] }}
+          token: ${{ github.token }}
+          artifactName: ${{ format('{0}-bundle-stats', matrix.bundle) }}
+          webpackStatsFile: ${{ format('{0}-{1}.json', matrix.bundle, matrix.build) }}

.github/workflows/release-drafter.yaml

@@ -5,10 +5,19 @@ on:
     branches:
       - dev
 
+permissions:
+  contents: read
+
 jobs:
   update_release_draft:
+    permissions:
+      # write permission for contents is required to create a github release
+      contents: write
+      # write permission for pull-requests is required for autolabeler
+      # otherwise, read permission is required at least
+      pull-requests: read
     runs-on: ubuntu-latest
     steps:
-      - uses: release-drafter/release-drafter@v5
+      - uses: release-drafter/release-drafter@v6.0.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yaml

@@ -6,8 +6,7 @@ on:
       - published
 
 env:
-  PYTHON_VERSION: "3.10"
-  NODE_VERSION: 16
+  PYTHON_VERSION: "3.12"
   NODE_OPTIONS: --max_old_space_size=6144
 
 # Set default workflow permissions
@@ -24,20 +23,20 @@ jobs:
       contents: write # Required to upload release assets
     steps:
       - name: Checkout the repository
-        uses: actions/checkout@v3.5.0
+        uses: actions/checkout@v4.2.0
 
       - name: Verify version
         uses: home-assistant/actions/helpers/verify-version@master
 
       - name: Set up Python ${{ env.PYTHON_VERSION }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
-      - name: Set up Node ${{ env.NODE_VERSION }}
-        uses: actions/setup-node@v3.6.0
+      - name: Setup Node
+        uses: actions/setup-node@v4.0.4
         with:
-          node-version: ${{ env.NODE_VERSION }}
+          node-version-file: ".nvmrc"
           cache: yarn
 
       - name: Install dependencies
@@ -56,7 +55,7 @@ jobs:
           script/release
 
       - name: Upload release assets
-        uses: softprops/action-gh-release@v0.1.15
+        uses: softprops/action-gh-release@v2.0.8
         with:
           files: |
             dist/*.whl
@@ -75,9 +74,9 @@ jobs:
           echo "home-assistant-frontend==$version" > ./requirements.txt
 
       - name: Build wheels
-        uses: home-assistant/wheels@2022.10.1
+        uses: home-assistant/wheels@2024.07.1
         with:
-          abi: cp310
+          abi: cp312
           tag: musllinux_1_2
           arch: amd64
           wheels-key: ${{ secrets.WHEELS_KEY }}

.github/workflows/stale.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 90 days stale policy
-        uses: actions/stale@v8.0.0
+        uses: actions/stale@v9.0.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           days-before-stale: 90

.github/workflows/translations.yaml

@@ -7,19 +7,15 @@ on:
     paths:
       - src/translations/en.json
 
-env:
-  NODE_VERSION: 16
-
 jobs:
   upload:
     name: Upload
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the repository
-        uses: actions/checkout@v3.5.0
+        uses: actions/checkout@v4.2.0
 
       - name: Upload Translations
         run: |
           export LOKALISE_TOKEN="${{ secrets.LOKALISE_TOKEN }}"
-
           ./script/translations_upload_base

.gitignore

@@ -47,3 +47,6 @@ src/cast/dev_const.ts
 
 # Home Assistant config
 /config/
+
+# Jetbrains
+/.idea/

.husky/pre-commit

@@ -1,4 +1 @@
-#!/usr/bin/env sh
-. "$(dirname -- "$0")/_/husky.sh"
-
 yarn run lint-staged --relative --shell "/bin/bash"

.nvmrc

@@ -1 +1 @@
-16
+lts/iron

.prettierignore

@@ -1,9 +1,4 @@
-build
-translations/*
-node_modules/*
-hass_frontend/*
-pip-selfcheck.json
-
-# vscode
-.vscode/*
-!.vscode/extensions.json
+CLA.md
+CODE_OF_CONDUCT.md
+LICENSE.md
+PULL_REQUEST_TEMPLATE.md

.vscode/launch.json

@@ -9,9 +9,7 @@
       "webRoot": "${workspaceFolder}/hass_frontend",
       "disableNetworkCache": true,
       "preLaunchTask": "Develop Frontend",
-      "outFiles": [
-        "${workspaceFolder}/hass_frontend/frontend_latest/*.js"
-      ]
+      "outFiles": ["${workspaceFolder}/hass_frontend/frontend_latest/*.js"]
     },
     {
       "name": "Debug Gallery",
@@ -39,6 +37,6 @@
       "webRoot": "${workspaceFolder}/cast/dist",
       "disableNetworkCache": true,
       "preLaunchTask": "Develop Cast"
-    },
+    }
   ]
 }

.vscode/tasks.json

@@ -197,7 +197,7 @@
       "type": "gulp",
       "task": "setup-and-fetch-nightly-translations",
       "problemMatcher": []
-          }
+    }
   ],
   "inputs": [
     {

.yarn/patches/hls.js-npm-1.5.7-f5bbd3d060.patch

@@ -0,0 +1,18 @@
+diff --git a/dist/hls.light.mjs b/dist/hls.light.mjs
+index eed9d788fafdb159975e1a2eb08ac88ba9c9ac33..ace881935e6665946f1c8110ebd2f739cde4427e 100644
+--- a/dist/hls.light.mjs
++++ b/dist/hls.light.mjs
+@@ -20523,9 +20523,9 @@ class Hls {
+ }
+ Hls.defaultConfig = void 0;
+ 
+-var KeySystemFormats = empty.KeySystemFormats;
+-var KeySystems = empty.KeySystems;
+-var SubtitleStreamController = empty.SubtitleStreamController;
+-var TimelineController = empty.TimelineController;
++var KeySystemFormats = empty;
++var KeySystems = empty;
++var SubtitleStreamController = empty;
++var TimelineController = empty;
+ export { AbrController, AttrList, Cues as AudioStreamController, Cues as AudioTrackController, BasePlaylistController, BaseSegment, BaseStreamController, BufferController, Cues as CMCDController, CapLevelController, ChunkMetadata, ContentSteeringController, DateRange, Cues as EMEController, ErrorActionFlags, ErrorController, ErrorDetails, ErrorTypes, Events, FPSController, Fragment, Hls, HlsSkip, HlsUrlParameters, KeySystemFormats, KeySystems, Level, LevelDetails, LevelKey, LoadStats, MetadataSchema, NetworkErrorAction, Part, PlaylistLevelType, SubtitleStreamController, Cues as SubtitleTrackController, TimelineController, Hls as default, getMediaSource, isMSESupported, isSupported };
+ //# sourceMappingURL=hls.light.mjs.map

.yarn/patches/sortablejs-npm-1.15.3-3235a8f83b.patch

@@ -0,0 +1,60 @@
+diff --git a/modular/sortable.core.esm.js b/modular/sortable.core.esm.js
+index 8b5e49b011713c8859c669069fbe85ce53974e1d..6a0afc92787157b8a31c38cc5f67dfa526090a00 100644
+--- a/modular/sortable.core.esm.js
++++ b/modular/sortable.core.esm.js
+@@ -1781,11 +1781,16 @@ Sortable.prototype = /** @lends Sortable.prototype */{
+         }
+         if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, !!target) !== false) {
+           capture();
+-          if (elLastChild && elLastChild.nextSibling) {
+-            // the last draggable element is not the last node
+-            el.insertBefore(dragEl, elLastChild.nextSibling);
+-          } else {
+-            el.appendChild(dragEl);
++          try {
++            if (elLastChild && elLastChild.nextSibling) {
++              // the last draggable element is not the last node
++              el.insertBefore(dragEl, elLastChild.nextSibling);
++            } else {
++              el.appendChild(dragEl);
++            }
++          }
++          catch(err) {
++            return completed(false);
+           }
+           parentEl = el; // actualization
+ 
+@@ -1802,7 +1807,12 @@ Sortable.prototype = /** @lends Sortable.prototype */{
+         targetRect = getRect(target);
+         if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, false) !== false) {
+           capture();
+-          el.insertBefore(dragEl, firstChild);
++          try {
++            el.insertBefore(dragEl, firstChild);
++          }
++          catch(err) {
++            return completed(false);
++          }
+           parentEl = el; // actualization
+ 
+           changed();
+@@ -1849,10 +1859,15 @@ Sortable.prototype = /** @lends Sortable.prototype */{
+           _silent = true;
+           setTimeout(_unsilent, 30);
+           capture();
+-          if (after && !nextSibling) {
+-            el.appendChild(dragEl);
+-          } else {
+-            target.parentNode.insertBefore(dragEl, after ? nextSibling : target);
++          try {
++            if (after && !nextSibling) {
++              el.appendChild(dragEl);
++            } else {
++              target.parentNode.insertBefore(dragEl, after ? nextSibling : target);
++            }
++          }
++          catch(err) {
++            return completed(false);
+           }
+ 
+           // Undo chrome's scroll adjustment (has no effect on other browsers)

.yarn/patches/workbox-build-npm-7.1.1-a854f3faae.patch

@@ -0,0 +1,55 @@
+diff --git a/build/inject-manifest.js b/build/inject-manifest.js
+index 60e3d2bb51c11a19fbbedbad65e101082ec41c36..fed6026630f43f86e25446383982cf6fb694313b 100644
+--- a/build/inject-manifest.js
++++ b/build/inject-manifest.js
+@@ -104,7 +104,7 @@ async function injectManifest(config) {
+             replaceString: manifestString,
+             searchString: options.injectionPoint,
+         });
+-        filesToWrite[options.swDest] = source;
++        filesToWrite[options.swDest] = source.replace(url, encodeURI(upath_1.default.basename(destPath)));
+         filesToWrite[destPath] = map;
+     }
+     else {
+diff --git a/build/lib/translate-url-to-sourcemap-paths.js b/build/lib/translate-url-to-sourcemap-paths.js
+index 3220c5474eeac6e8a56ca9b2ac2bd9be48529e43..5f003879a904d4840529a42dd056d288fd213771 100644
+--- a/build/lib/translate-url-to-sourcemap-paths.js
++++ b/build/lib/translate-url-to-sourcemap-paths.js
+@@ -22,7 +22,7 @@ function translateURLToSourcemapPaths(url, swSrc, swDest) {
+         const possibleSrcPath = upath_1.default.resolve(upath_1.default.dirname(swSrc), url);
+         if (fs_extra_1.default.existsSync(possibleSrcPath)) {
+             srcPath = possibleSrcPath;
+-            destPath = upath_1.default.resolve(upath_1.default.dirname(swDest), url);
++            destPath = `${swDest}.map`;
+         }
+         else {
+             warning = `${errors_1.errors['cant-find-sourcemap']} ${possibleSrcPath}`;
+diff --git a/src/inject-manifest.ts b/src/inject-manifest.ts
+index 8795ddcaa77aea7b0356417e4bc4b19e2b3f860c..fcdc68342d9ac53936c9ed40a9ccfc2f5070cad3 100644
+--- a/src/inject-manifest.ts
++++ b/src/inject-manifest.ts
+@@ -129,7 +129,10 @@ export async function injectManifest(
+       searchString: options.injectionPoint!,
+     });
+ 
+-    filesToWrite[options.swDest] = source;
++    filesToWrite[options.swDest] = source.replace(
++      url!,
++      encodeURI(upath.basename(destPath)),
++    );
+     filesToWrite[destPath] = map;
+   } else {
+     // If there's no sourcemap associated with swSrc, a simple string
+diff --git a/src/lib/translate-url-to-sourcemap-paths.ts b/src/lib/translate-url-to-sourcemap-paths.ts
+index 072eac40d4ef5d095a01cb7f7e392a9e034853bd..f0bbe69e88ef3a415de18a7e9cb264daea273d71 100644
+--- a/src/lib/translate-url-to-sourcemap-paths.ts
++++ b/src/lib/translate-url-to-sourcemap-paths.ts
+@@ -28,7 +28,7 @@ export function translateURLToSourcemapPaths(
+     const possibleSrcPath = upath.resolve(upath.dirname(swSrc), url);
+     if (fse.existsSync(possibleSrcPath)) {
+       srcPath = possibleSrcPath;
+-      destPath = upath.resolve(upath.dirname(swDest), url);
++      destPath = `${swDest}.map`;
+     } else {
+       warning = `${errors['cant-find-sourcemap']} ${possibleSrcPath}`;
+     }

.yarnrc.yml

@@ -1,11 +1,9 @@
+compressionLevel: mixed
+
 defaultSemverRangePrefix: ""
 
+enableGlobalCache: false
+
 nodeLinker: node-modules
 
-plugins:
-  - path: .yarn/plugins/@yarnpkg/plugin-typescript.cjs
-    spec: "@yarnpkg/plugin-typescript"
-  - path: .yarn/plugins/@yarnpkg/plugin-interactive-tools.cjs
-    spec: "@yarnpkg/plugin-interactive-tools"
-
-yarnPath: .yarn/releases/yarn-3.5.0.cjs
+yarnPath: .yarn/releases/yarn-4.5.0.cjs

README.md

@@ -27,3 +27,5 @@ A complete guide can be found at the following [link](https://www.home-assistant
 Home Assistant is open-source and Apache 2 licensed. Feel free to browse the repository, learn and reuse parts in your own projects.
 
 We use [BrowserStack](https://www.browserstack.com) to test Home Assistant on a large variety of devices.
+
+[![Home Assistant - A project from the Open Home Foundation](https://www.openhomefoundation.org/badges/home-assistant.png)](https://www.openhomefoundation.org/)

build-scripts/babel-plugins/custom-polyfill-plugin.js

@@ -0,0 +1,182 @@
+import defineProvider from "@babel/helper-define-polyfill-provider";
+import { join } from "node:path";
+import paths from "../paths.cjs";
+
+const POLYFILL_DIR = join(paths.polymer_dir, "src/resources/polyfills");
+
+// List of polyfill keys with supported browser targets for the functionality
+const PolyfillSupport = {
+  // Note states and shadowRoot properties should be supported.
+  "element-internals": {
+    android: 90,
+    chrome: 90,
+    edge: 90,
+    firefox: 126,
+    ios: 17.4,
+    opera: 76,
+    opera_mobile: 64,
+    safari: 17.4,
+    samsung: 15.0,
+  },
+  "element-append": {
+    android: 54,
+    chrome: 54,
+    edge: 17,
+    firefox: 49,
+    ios: 10.0,
+    opera: 41,
+    opera_mobile: 41,
+    safari: 10.0,
+    samsung: 6.0,
+  },
+  "element-getattributenames": {
+    android: 61,
+    chrome: 61,
+    edge: 18,
+    firefox: 45,
+    ios: 10.3,
+    opera: 48,
+    opera_mobile: 45,
+    safari: 10.1,
+    samsung: 8.0,
+  },
+  "element-toggleattribute": {
+    android: 69,
+    chrome: 69,
+    edge: 18,
+    firefox: 63,
+    ios: 12.0,
+    opera: 56,
+    opera_mobile: 48,
+    safari: 12.0,
+    samsung: 10.0,
+  },
+  fetch: {
+    android: 42,
+    chrome: 42,
+    edge: 14,
+    firefox: 39,
+    ios: 10.3,
+    opera: 29,
+    opera_mobile: 29,
+    safari: 10.1,
+    samsung: 4.0,
+  },
+  "intl-getcanonicallocales": {
+    android: 54,
+    chrome: 54,
+    edge: 16,
+    firefox: 48,
+    ios: 10.3,
+    opera: 41,
+    opera_mobile: 41,
+    safari: 10.1,
+    samsung: 6.0,
+  },
+  "intl-locale": {
+    android: 74,
+    chrome: 74,
+    edge: 79,
+    firefox: 75,
+    ios: 14.0,
+    opera: 62,
+    opera_mobile: 53,
+    safari: 14.0,
+    samsung: 11.0,
+  },
+  "intl-other": {
+    // Not specified (i.e. always try polyfill) since compatibility depends on supported locales
+  },
+  proxy: {
+    android: 49,
+    chrome: 49,
+    edge: 12,
+    firefox: 18,
+    ios: 10.0,
+    opera: 36,
+    opera_mobile: 36,
+    safari: 10.0,
+    samsung: 5.0,
+  },
+  "resize-observer": {
+    android: 64,
+    chrome: 64,
+    edge: 79,
+    firefox: 69,
+    ios: 13.4,
+    opera: 51,
+    opera_mobile: 47,
+    safari: 13.1,
+    samsung: 9.0,
+  },
+};
+
+// Map of global variables and/or instance and static properties to the
+// corresponding polyfill key and actual module to import
+const polyfillMap = {
+  global: {
+    fetch: { key: "fetch", module: "unfetch/polyfill" },
+    Proxy: { key: "proxy", module: "proxy-polyfill" },
+    ResizeObserver: {
+      key: "resize-observer",
+      module: join(POLYFILL_DIR, "resize-observer.ts"),
+    },
+  },
+  instance: {
+    attachInternals: {
+      key: "element-internals",
+      module: "element-internals-polyfill",
+    },
+    ...Object.fromEntries(
+      ["append", "getAttributeNames", "toggleAttribute"].map((prop) => {
+        const key = `element-${prop.toLowerCase()}`;
+        return [prop, { key, module: join(POLYFILL_DIR, `${key}.ts`) }];
+      })
+    ),
+  },
+  static: {
+    Intl: {
+      getCanonicalLocales: {
+        key: "intl-getcanonicallocales",
+        module: join(POLYFILL_DIR, "intl-polyfill.ts"),
+      },
+      Locale: {
+        key: "intl-locale",
+        module: join(POLYFILL_DIR, "intl-polyfill.ts"),
+      },
+      ...Object.fromEntries(
+        [
+          "DateTimeFormat",
+          "DisplayNames",
+          "ListFormat",
+          "NumberFormat",
+          "PluralRules",
+          "RelativeTimeFormat",
+        ].map((obj) => [
+          obj,
+          { key: "intl-other", module: join(POLYFILL_DIR, "intl-polyfill.ts") },
+        ])
+      ),
+    },
+  },
+};
+
+// Create plugin using the same factory as for CoreJS
+export default defineProvider(
+  ({ createMetaResolver, debug, shouldInjectPolyfill }) => {
+    const resolvePolyfill = createMetaResolver(polyfillMap);
+    return {
+      name: "custom-polyfill",
+      polyfills: PolyfillSupport,
+      usageGlobal(meta, utils) {
+        const polyfill = resolvePolyfill(meta);
+        if (polyfill && shouldInjectPolyfill(polyfill.desc.key)) {
+          debug(polyfill.desc.key);
+          utils.injectGlobalImport(polyfill.desc.module);
+          return true;
+        }
+        return false;
+      },
+    };
+  }
+);

build-scripts/bundle.cjs

@@ -1,6 +1,9 @@
 const path = require("path");
 const env = require("./env.cjs");
 const paths = require("./paths.cjs");
+const { dependencies } = require("../package.json");
+
+const BABEL_PLUGINS = path.join(__dirname, "babel-plugins");
 
 // GitHub base URL to use for production source maps
 // Nightly builds use the commit SHA, otherwise assumes there is a tag that matches the version
@@ -8,15 +11,11 @@ module.exports.sourceMapURL = () => {
   const ref = env.version().endsWith("dev")
     ? process.env.GITHUB_SHA || "dev"
     : env.version();
-  return `https://raw.githubusercontent.com/home-assistant/frontend/${ref}`;
+  return `https://raw.githubusercontent.com/home-assistant/frontend/${ref}/`;
 };
 
 // Files from NPM Packages that should not be imported
-// eslint-disable-next-line unused-imports/no-unused-vars
-module.exports.ignorePackages = ({ latestBuild }) => [
-  // Part of yaml.js and only used for !!js functions that we don't use
-  require.resolve("esprima"),
-];
+module.exports.ignorePackages = () => [];
 
 // Files from NPM packages that we should replace with empty file
 module.exports.emptyPackages = ({ latestBuild, isHassioBuild }) =>
@@ -35,8 +34,6 @@ module.exports.emptyPackages = ({ latestBuild, isHassioBuild }) =>
       require.resolve(
         path.resolve(paths.polymer_dir, "src/resources/compatibility.ts")
       ),
-    // This polyfill is loaded in workers to support ES5, filter it out.
-    latestBuild && require.resolve("proxy-polyfill/src/index.js"),
     // Icons in supervisor conflict with icons in HA so we don't load.
     isHassioBuild &&
       require.resolve(
@@ -50,7 +47,7 @@ module.exports.emptyPackages = ({ latestBuild, isHassioBuild }) =>
 
 module.exports.definedVars = ({ isProdBuild, latestBuild, defineOverlay }) => ({
   __DEV__: !isProdBuild,
-  __BUILD__: JSON.stringify(latestBuild ? "latest" : "es5"),
+  __BUILD__: JSON.stringify(latestBuild ? "modern" : "legacy"),
   __VERSION__: JSON.stringify(env.version()),
   __DEMO__: false,
   __SUPERVISOR__: false,
@@ -76,69 +73,81 @@ module.exports.htmlMinifierOptions = {
 
 module.exports.terserOptions = ({ latestBuild, isTestBuild }) => ({
   safari10: !latestBuild,
-  ecma: latestBuild ? undefined : 5,
+  ecma: latestBuild ? 2015 : 5,
+  module: latestBuild,
   format: { comments: false },
   sourceMap: !isTestBuild,
 });
 
-module.exports.babelOptions = ({ latestBuild, isProdBuild, isTestBuild }) => ({
+module.exports.babelOptions = ({
+  latestBuild,
+  isProdBuild,
+  isTestBuild,
+  sw,
+}) => ({
   babelrc: false,
   compact: false,
+  assumptions: {
+    privateFieldsAsProperties: true,
+    setPublicClassFields: true,
+    setSpreadProperties: true,
+  },
+  browserslistEnv: latestBuild ? "modern" : `legacy${sw ? "-sw" : ""}`,
   presets: [
-    !latestBuild && [
+    [
       "@babel/preset-env",
       {
-        useBuiltIns: "entry",
-        corejs: { version: "3.29", proposals: true },
+        useBuiltIns: "usage",
+        corejs: dependencies["core-js"],
         bugfixes: true,
+        shippedProposals: true,
       },
     ],
     "@babel/preset-typescript",
-  ].filter(Boolean),
+  ],
   plugins: [
     [
-      path.resolve(
-        paths.polymer_dir,
-        "build-scripts/babel-plugins/inline-constants-plugin.cjs"
-      ),
+      path.join(BABEL_PLUGINS, "inline-constants-plugin.cjs"),
       {
         modules: ["@mdi/js"],
         ignoreModuleNotFound: true,
       },
     ],
-    // Part of ES2018. Converts {...a, b: 2} to Object.assign({}, a, {b: 2})
-    !latestBuild && [
-      "@babel/plugin-proposal-object-rest-spread",
-      { loose: true, useBuiltIns: true },
-    ],
-    // Only support the syntax, Webpack will handle it.
-    "@babel/plugin-syntax-import-meta",
-    "@babel/plugin-syntax-dynamic-import",
-    "@babel/plugin-syntax-top-level-await",
-    // Support  various proposals
-    "@babel/plugin-proposal-optional-chaining",
-    "@babel/plugin-proposal-nullish-coalescing-operator",
-    ["@babel/plugin-proposal-decorators", { decoratorsBeforeExport: true }],
-    ["@babel/plugin-proposal-private-methods", { loose: true }],
-    ["@babel/plugin-proposal-private-property-in-object", { loose: true }],
-    ["@babel/plugin-proposal-class-properties", { loose: true }],
     // Minify template literals for production
     isProdBuild && [
       "template-html-minifier",
       {
         modules: {
-          lit: [
-            "html",
-            { name: "svg", encapsulation: "svg" },
-            { name: "css", encapsulation: "style" },
-          ],
-          "@polymer/polymer/lib/utils/html-tag": ["html"],
+          ...Object.fromEntries(
+            ["lit", "lit-element", "lit-html"].map((m) => [
+              m,
+              [
+                "html",
+                { name: "svg", encapsulation: "svg" },
+                { name: "css", encapsulation: "style" },
+              ],
+            ])
+          ),
+          "@polymer/polymer/lib/utils/html-tag.js": ["html"],
         },
         strictCSS: true,
         htmlMinifier: module.exports.htmlMinifierOptions,
-        failOnError: true, // we can turn this off in case of false positives
+        failOnError: false, // we can turn this off in case of false positives
       },
     ],
+    // Import helpers and regenerator from runtime package
+    [
+      "@babel/plugin-transform-runtime",
+      { version: dependencies["@babel/runtime"] },
+    ],
+    // Transpile decorators (still in TC39 process)
+    // Modern browsers support class fields and private methods, but transform is required with the older decorator version dictated by Lit
+    [
+      "@babel/plugin-proposal-decorators",
+      { version: "2018-09", decoratorsBeforeExport: true },
+    ],
+    "@babel/plugin-transform-class-properties",
+    "@babel/plugin-transform-private-methods",
   ].filter(Boolean),
   exclude: [
     // \\ for Windows, / for Mac OS and Linux
@@ -146,9 +155,42 @@ module.exports.babelOptions = ({ latestBuild, isProdBuild, isTestBuild }) => ({
     /node_modules[\\/]webpack[\\/]buildin/,
   ],
   sourceMaps: !isTestBuild,
+  overrides: [
+    {
+      // Add plugin to inject various polyfills, excluding the polyfills
+      // themselves to prevent self-injection.
+      plugins: [
+        [
+          path.join(BABEL_PLUGINS, "custom-polyfill-plugin.js"),
+          { method: "usage-global" },
+        ],
+      ],
+      exclude: [
+        path.join(paths.polymer_dir, "src/resources/polyfills"),
+        ...[
+          "@formatjs/(?:ecma402-abstract|intl-\\w+)",
+          "@lit-labs/virtualizer/polyfills",
+          "@webcomponents/scoped-custom-element-registry",
+          "element-internals-polyfill",
+          "proxy-polyfill",
+          "unfetch",
+        ].map((p) => new RegExp(`/node_modules/${p}/`)),
+      ],
+    },
+    {
+      // Use unambiguous for dependencies so that require() is correctly injected into CommonJS files
+      // Exclusions are needed in some cases where ES modules have no static imports or exports, such as polyfills
+      sourceType: "unambiguous",
+      include: /\/node_modules\//,
+      exclude: [
+        "element-internals-polyfill",
+        "@?lit(?:-labs|-element|-html)?",
+      ].map((p) => new RegExp(`/node_modules/${p}/`)),
+    },
+  ],
 });
 
-const nameSuffix = (latestBuild) => (latestBuild ? "-latest" : "-es5");
+const nameSuffix = (latestBuild) => (latestBuild ? "-modern" : "-legacy");
 
 const outputPath = (outputRoot, latestBuild) =>
   path.resolve(outputRoot, latestBuild ? "frontend_latest" : "frontend_es5");
@@ -157,34 +199,40 @@ const publicPath = (latestBuild, root = "") =>
   latestBuild ? `${root}/frontend_latest/` : `${root}/frontend_es5/`;
 
 /*
-BundleConfig {
-  // Object with entrypoints that need to be bundled
-  entry: { [name: string]: pathToFile },
-  // Folder where bundled files need to be written
-  outputPath: string,
-  // absolute url-path where bundled files can be found
-  publicPath: string,
-  // extra definitions that we need to replace in source
-  defineOverlay: {[name: string]: value },
-  // if this is a production build
-  isProdBuild: boolean,
-  // If we're targeting latest browsers
-  latestBuild: boolean,
-  // If we're doing a stats build (create nice chunk names)
-  isStatsBuild: boolean,
-  // If it's just a test build in CI, skip time on source map generation
-  isTestBuild: boolean,
-  // Names of entrypoints that should not be hashed
-  dontHash: Set<string>
-}
-*/
+  BundleConfig {
+    // Object with entrypoints that need to be bundled
+    entry: { [name: string]: pathToFile },
+    // Folder where bundled files need to be written
+    outputPath: string,
+    // absolute url-path where bundled files can be found
+    publicPath: string,
+    // extra definitions that we need to replace in source
+    defineOverlay: {[name: string]: value },
+    // if this is a production build
+    isProdBuild: boolean,
+    // If we're targeting latest browsers
+    latestBuild: boolean,
+    // If we're doing a stats build (create nice chunk names)
+    isStatsBuild: boolean,
+    // If it's just a test build in CI, skip time on source map generation
+    isTestBuild: boolean,
+    // Names of entrypoints that should not be hashed
+    dontHash: Set<string>
+  }
+  */
 
 module.exports.config = {
   app({ isProdBuild, latestBuild, isStatsBuild, isTestBuild, isWDS }) {
     return {
-      name: "app" + nameSuffix(latestBuild),
+      name: "frontend" + nameSuffix(latestBuild),
       entry: {
-        service_worker: "./src/entrypoints/service_worker.ts",
+        "service-worker":
+          !env.useRollup() && !latestBuild
+            ? {
+                import: "./src/entrypoints/service-worker.ts",
+                layer: "sw",
+              }
+            : "./src/entrypoints/service-worker.ts",
         app: "./src/entrypoints/app.ts",
         authorize: "./src/entrypoints/authorize.ts",
         onboarding: "./src/entrypoints/onboarding.ts",
@@ -260,6 +308,7 @@ module.exports.config = {
       isHassioBuild: true,
       defineOverlay: {
         __SUPERVISOR__: true,
+        __STATIC_PATH__: `"${paths.hassio_publicPath}/static/"`,
       },
     };
   },

build-scripts/env.cjs

@@ -32,4 +32,7 @@ module.exports = {
     }
     return version[1];
   },
+  isDevContainer() {
+    return process.env.DEV_CONTAINER === "1";
+  },
 };

build-scripts/gulp/app.js

@@ -1,18 +1,16 @@
-// Run HA develop mode
-
-const gulp = require("gulp");
-const env = require("../env.cjs");
-require("./clean.cjs");
-require("./translations.cjs");
-require("./locale-data.cjs");
-require("./gen-icons-json.cjs");
-require("./gather-static.cjs");
-require("./compress.cjs");
-require("./webpack.cjs");
-require("./service-worker.cjs");
-require("./entry-html.cjs");
-require("./rollup.cjs");
-require("./wds.cjs");
+import gulp from "gulp";
+import env from "../env.cjs";
+import "./clean.js";
+import "./compress.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./gen-icons-json.js";
+import "./locale-data.js";
+import "./rollup.js";
+import "./service-worker.js";
+import "./translations.js";
+import "./wds.js";
+import "./webpack.js";
 
 gulp.task(
   "develop-app",
@@ -24,8 +22,7 @@ gulp.task(
     gulp.parallel(
       "gen-service-worker-app-dev",
       "gen-icons-json",
-      "gen-pages-dev",
-      "gen-index-app-dev",
+      "gen-pages-app-dev",
       "build-translations",
       "build-locale-data"
     ),
@@ -33,8 +30,8 @@ gulp.task(
     env.useWDS()
       ? "wds-watch-app"
       : env.useRollup()
-      ? "rollup-watch-app"
-      : "webpack-watch-app"
+        ? "rollup-watch-app"
+        : "webpack-watch-app"
   )
 );
 
@@ -48,12 +45,8 @@ gulp.task(
     gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-app",
     env.useRollup() ? "rollup-prod-app" : "webpack-prod-app",
+    gulp.parallel("gen-pages-app-prod", "gen-service-worker-app-prod"),
     // Don't compress running tests
-    ...(env.isTestBuild() ? [] : ["compress-app"]),
-    gulp.parallel(
-      "gen-pages-prod",
-      "gen-index-app-prod",
-      "gen-service-worker-app-prod"
-    )
+    ...(env.isTestBuild() ? [] : ["compress-app"])
   )
 );

build-scripts/gulp/cast.js

@@ -1,13 +1,12 @@
-const gulp = require("gulp");
-const env = require("../env.cjs");
-
-require("./clean.cjs");
-require("./translations.cjs");
-require("./gather-static.cjs");
-require("./webpack.cjs");
-require("./service-worker.cjs");
-require("./entry-html.cjs");
-require("./rollup.cjs");
+import gulp from "gulp";
+import env from "../env.cjs";
+import "./clean.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./rollup.js";
+import "./service-worker.js";
+import "./translations.js";
+import "./webpack.js";
 
 gulp.task(
   "develop-cast",
@@ -19,7 +18,7 @@ gulp.task(
     "translations-enable-merge-backend",
     gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-cast",
-    "gen-index-cast-dev",
+    "gen-pages-cast-dev",
     env.useRollup() ? "rollup-dev-server-cast" : "webpack-dev-server-cast"
   )
 );
@@ -35,6 +34,6 @@ gulp.task(
     gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-cast",
     env.useRollup() ? "rollup-prod-cast" : "webpack-prod-cast",
-    "gen-index-cast-prod"
+    "gen-pages-cast-prod"
   )
 );

build-scripts/gulp/clean.js

@@ -1,37 +1,37 @@
-const del = import("del");
-const gulp = require("gulp");
-const paths = require("../paths.cjs");
-require("./translations.cjs");
+import { deleteSync } from "del";
+import gulp from "gulp";
+import paths from "../paths.cjs";
+import "./translations.js";
 
 gulp.task(
   "clean",
   gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([paths.app_output_root, paths.build_dir])
+    deleteSync([paths.app_output_root, paths.build_dir])
   )
 );
 
 gulp.task(
   "clean-demo",
   gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([paths.demo_output_root, paths.build_dir])
+    deleteSync([paths.demo_output_root, paths.build_dir])
   )
 );
 
 gulp.task(
   "clean-cast",
   gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([paths.cast_output_root, paths.build_dir])
+    deleteSync([paths.cast_output_root, paths.build_dir])
   )
 );
 
 gulp.task("clean-hassio", async () =>
-  (await del).deleteSync([paths.hassio_output_root, paths.build_dir])
+  deleteSync([paths.hassio_output_root, paths.build_dir])
 );
 
 gulp.task(
   "clean-gallery",
   gulp.parallel("clean-translations", async () =>
-    (await del).deleteSync([
+    deleteSync([
       paths.gallery_output_root,
       paths.gallery_build,
       paths.build_dir,

build-scripts/gulp/compress.cjs

@@ -1,45 +0,0 @@
-// Tasks to compress
-
-const gulp = require("gulp");
-const zopfli = require("gulp-zopfli-green");
-const merge = require("merge-stream");
-const path = require("path");
-const paths = require("../paths.cjs");
-
-const zopfliOptions = { threshold: 150 };
-
-gulp.task("compress-app", function compressApp() {
-  const jsLatest = gulp
-    .src(path.resolve(paths.app_output_latest, "**/*.js"))
-    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(paths.app_output_latest));
-
-  const jsEs5 = gulp
-    .src(path.resolve(paths.app_output_es5, "**/*.js"))
-    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(paths.app_output_es5));
-
-  const polyfills = gulp
-    .src(path.resolve(paths.app_output_static, "polyfills/*.js"))
-    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(path.resolve(paths.app_output_static, "polyfills")));
-
-  const translations = gulp
-    .src(path.resolve(paths.app_output_static, "translations/**/*.json"))
-    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(path.resolve(paths.app_output_static, "translations")));
-
-  const icons = gulp
-    .src(path.resolve(paths.app_output_static, "mdi/*.json"))
-    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(path.resolve(paths.app_output_static, "mdi")));
-
-  return merge(jsLatest, jsEs5, polyfills, translations, icons);
-});
-
-gulp.task("compress-hassio", function compressApp() {
-  return gulp
-    .src(path.resolve(paths.hassio_output_root, "**/*.js"))
-    .pipe(zopfli(zopfliOptions))
-    .pipe(gulp.dest(paths.hassio_output_root));
-});

build-scripts/gulp/compress.js

@@ -0,0 +1,68 @@
+// Tasks to compress
+
+import { constants } from "node:zlib";
+import gulp from "gulp";
+import brotli from "gulp-brotli";
+import zopfli from "gulp-zopfli-green";
+import paths from "../paths.cjs";
+
+const filesGlob = "*.{js,json,css,svg,xml}";
+const brotliOptions = {
+  skipLarger: true,
+  params: {
+    [constants.BROTLI_PARAM_QUALITY]: constants.BROTLI_MAX_QUALITY,
+  },
+};
+const zopfliOptions = { threshold: 150 };
+
+const compressDistBrotli = (rootDir, modernDir, compressServiceWorker = true) =>
+  gulp
+    .src(
+      [
+        `${modernDir}/**/${filesGlob}`,
+        compressServiceWorker ? `${rootDir}/sw-modern.js` : undefined,
+      ].filter(Boolean),
+      {
+        base: rootDir,
+      }
+    )
+    .pipe(brotli(brotliOptions))
+    .pipe(gulp.dest(rootDir));
+
+const compressDistZopfli = (rootDir, modernDir, compressModern = false) =>
+  gulp
+    .src(
+      [
+        `${rootDir}/**/${filesGlob}`,
+        compressModern ? undefined : `!${modernDir}/**/${filesGlob}`,
+        `!${rootDir}/{sw-modern,service_worker}.js`,
+        `${rootDir}/{authorize,onboarding}.html`,
+      ].filter(Boolean),
+      { base: rootDir }
+    )
+    .pipe(zopfli(zopfliOptions))
+    .pipe(gulp.dest(rootDir));
+
+const compressAppBrotli = () =>
+  compressDistBrotli(paths.app_output_root, paths.app_output_latest);
+const compressHassioBrotli = () =>
+  compressDistBrotli(
+    paths.hassio_output_root,
+    paths.hassio_output_latest,
+    false
+  );
+
+const compressAppZopfli = () =>
+  compressDistZopfli(paths.app_output_root, paths.app_output_latest);
+const compressHassioZopfli = () =>
+  compressDistZopfli(
+    paths.hassio_output_root,
+    paths.hassio_output_latest,
+    true
+  );
+
+gulp.task("compress-app", gulp.parallel(compressAppBrotli, compressAppZopfli));
+gulp.task(
+  "compress-hassio",
+  gulp.parallel(compressHassioBrotli, compressHassioZopfli)
+);

build-scripts/gulp/demo.js

@@ -1,15 +1,13 @@
-// Run demo develop mode
-const gulp = require("gulp");
-const env = require("../env.cjs");
-
-require("./clean.cjs");
-require("./translations.cjs");
-require("./gen-icons-json.cjs");
-require("./gather-static.cjs");
-require("./webpack.cjs");
-require("./service-worker.cjs");
-require("./entry-html.cjs");
-require("./rollup.cjs");
+import gulp from "gulp";
+import env from "../env.cjs";
+import "./clean.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./gen-icons-json.js";
+import "./rollup.js";
+import "./service-worker.js";
+import "./translations.js";
+import "./webpack.js";
 
 gulp.task(
   "develop-demo",
@@ -21,7 +19,7 @@ gulp.task(
     "translations-enable-merge-backend",
     gulp.parallel(
       "gen-icons-json",
-      "gen-index-demo-dev",
+      "gen-pages-demo-dev",
       "build-translations",
       "build-locale-data"
     ),
@@ -42,6 +40,6 @@ gulp.task(
     gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-demo",
     env.useRollup() ? "rollup-prod-demo" : "webpack-prod-demo",
-    "gen-index-demo-prod"
+    "gen-pages-demo-prod"
   )
 );

build-scripts/gulp/download-translations.js

@@ -0,0 +1,180 @@
+import fs from "fs/promises";
+import gulp from "gulp";
+import path from "path";
+import mapStream from "map-stream";
+import transform from "gulp-json-transform";
+import { LokaliseApi } from "@lokalise/node-api";
+import JSZip from "jszip";
+
+const inDir = "translations";
+const inDirFrontend = `${inDir}/frontend`;
+const inDirBackend = `${inDir}/backend`;
+const srcMeta = "src/translations/translationMetadata.json";
+const encoding = "utf8";
+
+function hasHtml(data) {
+  return /<[a-z][\s\S]*>/i.test(data);
+}
+
+function recursiveCheckHasHtml(file, data, errors, recKey) {
+  Object.keys(data).forEach(function (key) {
+    if (typeof data[key] === "object") {
+      const nextRecKey = recKey ? `${recKey}.${key}` : key;
+      recursiveCheckHasHtml(file, data[key], errors, nextRecKey);
+    } else if (hasHtml(data[key])) {
+      errors.push(`HTML found in ${file.path} at key ${recKey}.${key}`);
+    }
+  });
+}
+
+function checkHtml() {
+  const errors = [];
+
+  return mapStream(function (file, cb) {
+    const content = file.contents;
+    let error;
+    if (content) {
+      if (hasHtml(String(content))) {
+        const data = JSON.parse(String(content));
+        recursiveCheckHasHtml(file, data, errors);
+        if (errors.length > 0) {
+          error = errors.join("\r\n");
+        }
+      }
+    }
+    cb(error, file);
+  });
+}
+
+function convertBackendTranslations(data, _file) {
+  const output = { component: {} };
+  if (!data.component) {
+    return output;
+  }
+  Object.keys(data.component).forEach((domain) => {
+    if (!("entity_component" in data.component[domain])) {
+      return;
+    }
+    output.component[domain] = { entity_component: {} };
+    Object.keys(data.component[domain].entity_component).forEach((key) => {
+      output.component[domain].entity_component[key] =
+        data.component[domain].entity_component[key];
+    });
+  });
+  return output;
+}
+
+gulp.task("convert-backend-translations", function () {
+  return gulp
+    .src([`${inDirBackend}/*.json`])
+    .pipe(transform((data, file) => convertBackendTranslations(data, file)))
+    .pipe(gulp.dest(inDirBackend));
+});
+
+gulp.task("check-translations-html", function () {
+  return gulp
+    .src([`${inDirFrontend}/*.json`, `${inDirBackend}/*.json`])
+    .pipe(checkHtml());
+});
+
+gulp.task("check-all-files-exist", async function () {
+  const file = await fs.readFile(srcMeta, { encoding });
+  const meta = JSON.parse(file);
+  const writings = [];
+  Object.keys(meta).forEach((lang) => {
+    writings.push(
+      fs.writeFile(`${inDirFrontend}/${lang}.json`, JSON.stringify({}), {
+        flag: "wx",
+      }),
+      fs.writeFile(`${inDirBackend}/${lang}.json`, JSON.stringify({}), {
+        flag: "wx",
+      })
+    );
+  });
+  await Promise.allSettled(writings);
+});
+
+const lokaliseProjects = {
+  backend: "130246255a974bd3b5e8a1.51616605",
+  frontend: "3420425759f6d6d241f598.13594006",
+};
+
+gulp.task("fetch-lokalise", async function () {
+  let apiKey;
+  try {
+    apiKey =
+      process.env.LOKALISE_TOKEN ||
+      (await fs.readFile(".lokalise_token", { encoding }));
+  } catch {
+    throw new Error(
+      "An Administrator Lokalise API token is required to download the latest set of translations. Place your token in a new file `.lokalise_token` in the repo root directory."
+    );
+  }
+  const lokaliseApi = new LokaliseApi({ apiKey });
+
+  const mkdirPromise = Promise.all([
+    fs.mkdir(inDirFrontend, { recursive: true }),
+    fs.mkdir(inDirBackend, { recursive: true }),
+  ]);
+
+  await Promise.all(
+    Object.entries(lokaliseProjects).map(([project, projectId]) =>
+      lokaliseApi
+        .files()
+        .download(projectId, {
+          format: "json",
+          original_filenames: false,
+          replace_breaks: false,
+          json_unescaped_slashes: true,
+          export_empty_as: "skip",
+        })
+        .then((download) => fetch(download.bundle_url))
+        .then((response) => {
+          if (response.status === 200 || response.status === 0) {
+            return response.arrayBuffer();
+          }
+          throw new Error(response.statusText);
+        })
+        .then(JSZip.loadAsync)
+        .then(async (contents) => {
+          await mkdirPromise;
+          return Promise.all(
+            Object.keys(contents.files).map(async (filename) => {
+              const file = contents.file(filename);
+              if (!file) {
+                // no file, probably a directory
+                return Promise.resolve();
+              }
+              return file
+                .async("nodebuffer")
+                .then((content) =>
+                  fs.writeFile(
+                    path.join(
+                      inDir,
+                      project,
+                      filename.split("/").splice(-1)[0]
+                    ),
+                    content,
+                    { flag: "w", encoding }
+                  )
+                );
+            })
+          );
+        })
+        .catch((err) => {
+          console.error(err);
+          throw err;
+        })
+    )
+  );
+});
+
+gulp.task(
+  "download-translations",
+  gulp.series(
+    "fetch-lokalise",
+    "convert-backend-translations",
+    "check-translations-html",
+    "check-all-files-exist"
+  )
+);

build-scripts/gulp/download_translations.cjs

@@ -1,69 +0,0 @@
-const gulp = require("gulp");
-const fs = require("fs/promises");
-const mapStream = require("map-stream");
-
-const inDirFrontend = "translations/frontend";
-const inDirBackend = "translations/backend";
-const srcMeta = "src/translations/translationMetadata.json";
-const encoding = "utf8";
-
-function hasHtml(data) {
-  return /<[a-z][\s\S]*>/i.test(data);
-}
-
-function recursiveCheckHasHtml(file, data, errors, recKey) {
-  Object.keys(data).forEach(function (key) {
-    if (typeof data[key] === "object") {
-      const nextRecKey = recKey ? `${recKey}.${key}` : key;
-      recursiveCheckHasHtml(file, data[key], errors, nextRecKey);
-    } else if (hasHtml(data[key])) {
-      errors.push(`HTML found in ${file.path} at key ${recKey}.${key}`);
-    }
-  });
-}
-
-function checkHtml() {
-  const errors = [];
-
-  return mapStream(function (file, cb) {
-    const content = file.contents;
-    let error;
-    if (content) {
-      if (hasHtml(String(content))) {
-        const data = JSON.parse(String(content));
-        recursiveCheckHasHtml(file, data, errors);
-        if (errors.length > 0) {
-          error = errors.join("\r\n");
-        }
-      }
-    }
-    cb(error, file);
-  });
-}
-
-// Backend translations do not currently pass HTML check so are excluded here for now
-gulp.task("check-translations-html", function () {
-  return gulp.src([`${inDirFrontend}/*.json`]).pipe(checkHtml());
-});
-
-gulp.task("check-all-files-exist", async function () {
-  const file = await fs.readFile(srcMeta, { encoding });
-  const meta = JSON.parse(file);
-  const writings = [];
-  Object.keys(meta).forEach((lang) => {
-    writings.push(
-      fs.writeFile(`${inDirFrontend}/${lang}.json`, JSON.stringify({}), {
-        flag: "wx",
-      }),
-      fs.writeFile(`${inDirBackend}/${lang}.json`, JSON.stringify({}), {
-        flag: "wx",
-      })
-    );
-  });
-  await Promise.allSettled(writings);
-});
-
-gulp.task(
-  "check-downloaded-translations",
-  gulp.series("check-translations-html", "check-all-files-exist")
-);

build-scripts/gulp/entry-html.cjs

@@ -1,351 +0,0 @@
-// Tasks to generate entry HTML
-const gulp = require("gulp");
-const fs = require("fs-extra");
-const path = require("path");
-const template = require("lodash.template");
-const { minify } = require("html-minifier-terser");
-const paths = require("../paths.cjs");
-const env = require("../env.cjs");
-const { htmlMinifierOptions, terserOptions } = require("../bundle.cjs");
-
-const templatePath = (tpl) =>
-  path.resolve(paths.polymer_dir, "src/html/", `${tpl}.html.template`);
-
-const readFile = (pth) => fs.readFileSync(pth).toString();
-
-const renderTemplate = (pth, data = {}, pathFunc = templatePath) => {
-  const compiled = template(readFile(pathFunc(pth)));
-  return compiled({
-    ...data,
-    useRollup: env.useRollup(),
-    useWDS: env.useWDS(),
-    renderTemplate,
-  });
-};
-
-const renderDemoTemplate = (pth, data = {}) =>
-  renderTemplate(pth, data, (tpl) =>
-    path.resolve(paths.demo_dir, "src/html/", `${tpl}.html.template`)
-  );
-
-const renderCastTemplate = (pth, data = {}) =>
-  renderTemplate(pth, data, (tpl) =>
-    path.resolve(paths.cast_dir, "src/html/", `${tpl}.html.template`)
-  );
-
-const renderGalleryTemplate = (pth, data = {}) =>
-  renderTemplate(pth, data, (tpl) =>
-    path.resolve(paths.gallery_dir, "src/html/", `${tpl}.html.template`)
-  );
-
-const minifyHtml = (content) =>
-  minify(content, {
-    ...htmlMinifierOptions,
-    conservativeCollapse: false,
-    minifyJS: terserOptions({
-      latestBuild: false, // Shared scripts should be ES5
-      isTestBuild: true, // Don't need source maps
-    }),
-  });
-
-const PAGES = ["onboarding", "authorize"];
-
-gulp.task("gen-pages-dev", (done) => {
-  for (const page of PAGES) {
-    const content = renderTemplate(page, {
-      latestPageJS: `/frontend_latest/${page}.js`,
-
-      es5PageJS: `/frontend_es5/${page}.js`,
-    });
-
-    fs.outputFileSync(
-      path.resolve(paths.app_output_root, `${page}.html`),
-      content
-    );
-  }
-  done();
-});
-
-gulp.task("gen-pages-prod", async () => {
-  const latestManifest = require(path.resolve(
-    paths.app_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.app_output_es5,
-    "manifest.json"
-  ));
-
-  const minifiedHTML = [];
-  for (const page of PAGES) {
-    const content = renderTemplate(page, {
-      latestPageJS: latestManifest[`${page}.js`],
-      es5PageJS: es5Manifest[`${page}.js`],
-    });
-
-    minifiedHTML.push(
-      minifyHtml(content).then((minified) =>
-        fs.outputFileSync(
-          path.resolve(paths.app_output_root, `${page}.html`),
-          minified
-        )
-      )
-    );
-  }
-  await Promise.all(minifiedHTML);
-});
-
-gulp.task("gen-index-app-dev", (done) => {
-  let latestAppJS;
-  let latestCoreJS;
-  let latestCustomPanelJS;
-
-  if (env.useWDS()) {
-    latestAppJS = "http://localhost:8000/src/entrypoints/app.ts";
-    latestCoreJS = "http://localhost:8000/src/entrypoints/core.ts";
-    latestCustomPanelJS =
-      "http://localhost:8000/src/entrypoints/custom-panel.ts";
-  } else {
-    latestAppJS = "/frontend_latest/app.js";
-    latestCoreJS = "/frontend_latest/core.js";
-    latestCustomPanelJS = "/frontend_latest/custom-panel.js";
-  }
-
-  const content = renderTemplate("index", {
-    latestAppJS,
-    latestCoreJS,
-    latestCustomPanelJS,
-
-    es5AppJS: "/frontend_es5/app.js",
-    es5CoreJS: "/frontend_es5/core.js",
-    es5CustomPanelJS: "/frontend_es5/custom-panel.js",
-  }).replace(/#THEMEC/g, "{{ theme_color }}");
-
-  fs.outputFileSync(path.resolve(paths.app_output_root, "index.html"), content);
-  done();
-});
-
-gulp.task("gen-index-app-prod", async () => {
-  const latestManifest = require(path.resolve(
-    paths.app_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.app_output_es5,
-    "manifest.json"
-  ));
-  const content = renderTemplate("index", {
-    latestAppJS: latestManifest["app.js"],
-    latestCoreJS: latestManifest["core.js"],
-    latestCustomPanelJS: latestManifest["custom-panel.js"],
-
-    es5AppJS: es5Manifest["app.js"],
-    es5CoreJS: es5Manifest["core.js"],
-    es5CustomPanelJS: es5Manifest["custom-panel.js"],
-  });
-  const minified = (await minifyHtml(content)).replace(
-    /#THEMEC/g,
-    "{{ theme_color }}"
-  );
-
-  fs.outputFileSync(
-    path.resolve(paths.app_output_root, "index.html"),
-    minified
-  );
-});
-
-gulp.task("gen-index-cast-dev", (done) => {
-  const contentReceiver = renderCastTemplate("receiver", {
-    latestReceiverJS: "/frontend_latest/receiver.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "receiver.html"),
-    contentReceiver
-  );
-
-  const contentMedia = renderCastTemplate("media", {
-    latestMediaJS: "/frontend_latest/media.js",
-    es5MediaJS: "/frontend_es5/media.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "media.html"),
-    contentMedia
-  );
-
-  const contentFAQ = renderCastTemplate("launcher-faq", {
-    latestLauncherJS: "/frontend_latest/launcher.js",
-    es5LauncherJS: "/frontend_es5/launcher.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "faq.html"),
-    contentFAQ
-  );
-
-  const contentLauncher = renderCastTemplate("launcher", {
-    latestLauncherJS: "/frontend_latest/launcher.js",
-    es5LauncherJS: "/frontend_es5/launcher.js",
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "index.html"),
-    contentLauncher
-  );
-  done();
-});
-
-gulp.task("gen-index-cast-prod", (done) => {
-  const latestManifest = require(path.resolve(
-    paths.cast_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.cast_output_es5,
-    "manifest.json"
-  ));
-
-  const contentReceiver = renderCastTemplate("receiver", {
-    latestReceiverJS: latestManifest["receiver.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "receiver.html"),
-    contentReceiver
-  );
-
-  const contentMedia = renderCastTemplate("media", {
-    latestMediaJS: latestManifest["media.js"],
-    es5MediaJS: es5Manifest["media.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "media.html"),
-    contentMedia
-  );
-
-  const contentFAQ = renderCastTemplate("launcher-faq", {
-    latestLauncherJS: latestManifest["launcher.js"],
-    es5LauncherJS: es5Manifest["launcher.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "faq.html"),
-    contentFAQ
-  );
-
-  const contentLauncher = renderCastTemplate("launcher", {
-    latestLauncherJS: latestManifest["launcher.js"],
-    es5LauncherJS: es5Manifest["launcher.js"],
-  });
-  fs.outputFileSync(
-    path.resolve(paths.cast_output_root, "index.html"),
-    contentLauncher
-  );
-  done();
-});
-
-gulp.task("gen-index-demo-dev", (done) => {
-  const content = renderDemoTemplate("index", {
-    latestDemoJS: "/frontend_latest/main.js",
-
-    es5DemoJS: "/frontend_es5/main.js",
-  });
-
-  fs.outputFileSync(
-    path.resolve(paths.demo_output_root, "index.html"),
-    content
-  );
-  done();
-});
-
-gulp.task("gen-index-demo-prod", async () => {
-  const latestManifest = require(path.resolve(
-    paths.demo_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.demo_output_es5,
-    "manifest.json"
-  ));
-  const content = renderDemoTemplate("index", {
-    latestDemoJS: latestManifest["main.js"],
-
-    es5DemoJS: es5Manifest["main.js"],
-  });
-  const minified = await minifyHtml(content);
-
-  fs.outputFileSync(
-    path.resolve(paths.demo_output_root, "index.html"),
-    minified
-  );
-});
-
-gulp.task("gen-index-gallery-dev", (done) => {
-  const content = renderGalleryTemplate("index", {
-    latestGalleryJS: "./frontend_latest/entrypoint.js",
-  });
-
-  fs.outputFileSync(
-    path.resolve(paths.gallery_output_root, "index.html"),
-    content
-  );
-  done();
-});
-
-gulp.task("gen-index-gallery-prod", async () => {
-  const latestManifest = require(path.resolve(
-    paths.gallery_output_latest,
-    "manifest.json"
-  ));
-  const content = renderGalleryTemplate("index", {
-    latestGalleryJS: latestManifest["entrypoint.js"],
-  });
-  const minified = await minifyHtml(content);
-
-  fs.outputFileSync(
-    path.resolve(paths.gallery_output_root, "index.html"),
-    minified
-  );
-});
-
-gulp.task("gen-index-hassio-dev", async () => {
-  writeHassioEntrypoint(
-    `${paths.hassio_publicPath}/frontend_latest/entrypoint.js`,
-    `${paths.hassio_publicPath}/frontend_es5/entrypoint.js`
-  );
-});
-
-gulp.task("gen-index-hassio-prod", async () => {
-  const latestManifest = require(path.resolve(
-    paths.hassio_output_latest,
-    "manifest.json"
-  ));
-  const es5Manifest = require(path.resolve(
-    paths.hassio_output_es5,
-    "manifest.json"
-  ));
-  writeHassioEntrypoint(
-    latestManifest["entrypoint.js"],
-    es5Manifest["entrypoint.js"]
-  );
-});
-
-function writeHassioEntrypoint(latestEntrypoint, es5Entrypoint) {
-  fs.mkdirSync(paths.hassio_output_root, { recursive: true });
-  // Safari 12 and below does not have a compliant ES2015 implementation of template literals, so we ship ES5
-  fs.writeFileSync(
-    path.resolve(paths.hassio_output_root, "entrypoint.js"),
-    `
-function loadES5() {
-  var el = document.createElement('script');
-  el.src = '${es5Entrypoint}';
-  document.body.appendChild(el);
-}
-if (/.*Version\\/(?:11|12)(?:\\.\\d+)*.*Safari\\//.test(navigator.userAgent)) {
-    loadES5();
-} else {
-  try {
-    new Function("import('${latestEntrypoint}')")();
-  } catch (err) {
-    loadES5();
-  }
-}
-  `,
-    { encoding: "utf-8" }
-  );
-}

build-scripts/gulp/entry-html.js

@@ -0,0 +1,285 @@
+// Tasks to generate entry HTML
+
+import {
+  applyVersionsToRegexes,
+  compileRegex,
+  getPreUserAgentRegexes,
+} from "browserslist-useragent-regexp";
+import fs from "fs-extra";
+import gulp from "gulp";
+import { minify } from "html-minifier-terser";
+import template from "lodash.template";
+import { dirname, extname, resolve } from "node:path";
+import { htmlMinifierOptions, terserOptions } from "../bundle.cjs";
+import env from "../env.cjs";
+import paths from "../paths.cjs";
+
+// macOS companion app has no way to obtain the Safari version used by WKWebView,
+// and it is not in the default user agent string. So we add an additional regex
+// to serve modern based on a minimum macOS version. We take the minimum Safari
+// major version from browserslist and manually map that to a supported macOS
+// version. Note this assumes the user has kept Safari updated.
+const HA_MACOS_REGEX =
+  /Home Assistant\/[\d.]+ \(.+; macOS (\d+)\.(\d+)(?:\.(\d+))?\)/;
+const SAFARI_TO_MACOS = {
+  15: [10, 15, 0],
+  16: [11, 0, 0],
+  17: [12, 0, 0],
+  18: [13, 0, 0],
+};
+
+const getCommonTemplateVars = () => {
+  const browserRegexes = getPreUserAgentRegexes({
+    env: "modern",
+    allowHigherVersions: true,
+    mobileToDesktop: true,
+    throwOnMissing: true,
+  });
+  const minSafariVersion = browserRegexes.find(
+    (regex) => regex.family === "safari"
+  )?.matchedVersions[0][0];
+  const minMacOSVersion = SAFARI_TO_MACOS[minSafariVersion];
+  if (!minMacOSVersion) {
+    throw Error(
+      `Could not find minimum MacOS version for Safari ${minSafariVersion}.`
+    );
+  }
+  const haMacOSRegex = applyVersionsToRegexes(
+    [
+      {
+        family: "ha_macos",
+        regex: HA_MACOS_REGEX,
+        matchedVersions: [minMacOSVersion],
+        requestVersions: [minMacOSVersion],
+      },
+    ],
+    { ignorePatch: true, allowHigherVersions: true }
+  );
+  return {
+    useRollup: env.useRollup(),
+    useWDS: env.useWDS(),
+    modernRegex: compileRegex(browserRegexes.concat(haMacOSRegex)).toString(),
+  };
+};
+
+const renderTemplate = (templateFile, data = {}) => {
+  const compiled = template(
+    fs.readFileSync(templateFile, { encoding: "utf-8" })
+  );
+  return compiled({
+    ...data,
+    // Resolve any child/nested templates relative to the parent and pass the same data
+    renderTemplate: (childTemplate) =>
+      renderTemplate(resolve(dirname(templateFile), childTemplate), data),
+  });
+};
+
+const WRAP_TAGS = { ".js": "script", ".css": "style" };
+
+const minifyHtml = (content, ext) => {
+  const wrapTag = WRAP_TAGS[ext] || "";
+  const begTag = wrapTag && `<${wrapTag}>`;
+  const endTag = wrapTag && `</${wrapTag}>`;
+  return minify(begTag + content + endTag, {
+    ...htmlMinifierOptions,
+    conservativeCollapse: false,
+    minifyJS: terserOptions({
+      latestBuild: false, // Shared scripts should be ES5
+      isTestBuild: true, // Don't need source maps
+    }),
+  }).then((wrapped) =>
+    wrapTag ? wrapped.slice(begTag.length, -endTag.length) : wrapped
+  );
+};
+
+// Function to generate a dev task for each project's configuration
+// Note Currently WDS paths are hard-coded to only work for app
+const genPagesDevTask =
+  (
+    pageEntries,
+    inputRoot,
+    outputRoot,
+    useWDS = false,
+    inputSub = "src/html",
+    publicRoot = ""
+  ) =>
+  async () => {
+    const commonVars = getCommonTemplateVars();
+    for (const [page, entries] of Object.entries(pageEntries)) {
+      const content = renderTemplate(
+        resolve(inputRoot, inputSub, `${page}.template`),
+        {
+          ...commonVars,
+          latestEntryJS: entries.map((entry) =>
+            useWDS
+              ? `http://localhost:8000/src/entrypoints/${entry}.ts`
+              : `${publicRoot}/frontend_latest/${entry}.js`
+          ),
+          es5EntryJS: entries.map(
+            (entry) => `${publicRoot}/frontend_es5/${entry}.js`
+          ),
+          latestCustomPanelJS: useWDS
+            ? "http://localhost:8000/src/entrypoints/custom-panel.ts"
+            : `${publicRoot}/frontend_latest/custom-panel.js`,
+          es5CustomPanelJS: `${publicRoot}/frontend_es5/custom-panel.js`,
+        }
+      );
+      fs.outputFileSync(resolve(outputRoot, page), content);
+    }
+  };
+
+// Same as previous but for production builds
+// (includes minification and hashed file names from manifest)
+const genPagesProdTask =
+  (
+    pageEntries,
+    inputRoot,
+    outputRoot,
+    outputLatest,
+    outputES5,
+    inputSub = "src/html"
+  ) =>
+  async () => {
+    const latestManifest = fs.readJsonSync(
+      resolve(outputLatest, "manifest.json")
+    );
+    const es5Manifest = outputES5
+      ? fs.readJsonSync(resolve(outputES5, "manifest.json"))
+      : {};
+    const commonVars = getCommonTemplateVars();
+    const minifiedHTML = [];
+    for (const [page, entries] of Object.entries(pageEntries)) {
+      const content = renderTemplate(
+        resolve(inputRoot, inputSub, `${page}.template`),
+        {
+          ...commonVars,
+          latestEntryJS: entries.map((entry) => latestManifest[`${entry}.js`]),
+          es5EntryJS: entries.map((entry) => es5Manifest[`${entry}.js`]),
+          latestCustomPanelJS: latestManifest["custom-panel.js"],
+          es5CustomPanelJS: es5Manifest["custom-panel.js"],
+        }
+      );
+      minifiedHTML.push(
+        minifyHtml(content, extname(page)).then((minified) =>
+          fs.outputFileSync(resolve(outputRoot, page), minified)
+        )
+      );
+    }
+    await Promise.all(minifiedHTML);
+  };
+
+// Map HTML pages to their required entrypoints
+const APP_PAGE_ENTRIES = {
+  "authorize.html": ["authorize"],
+  "onboarding.html": ["onboarding"],
+  "index.html": ["core", "app"],
+};
+
+gulp.task(
+  "gen-pages-app-dev",
+  genPagesDevTask(
+    APP_PAGE_ENTRIES,
+    paths.polymer_dir,
+    paths.app_output_root,
+    env.useWDS()
+  )
+);
+
+gulp.task(
+  "gen-pages-app-prod",
+  genPagesProdTask(
+    APP_PAGE_ENTRIES,
+    paths.polymer_dir,
+    paths.app_output_root,
+    paths.app_output_latest,
+    paths.app_output_es5
+  )
+);
+
+const CAST_PAGE_ENTRIES = {
+  "faq.html": ["launcher"],
+  "index.html": ["launcher"],
+  "media.html": ["media"],
+  "receiver.html": ["receiver"],
+};
+
+gulp.task(
+  "gen-pages-cast-dev",
+  genPagesDevTask(CAST_PAGE_ENTRIES, paths.cast_dir, paths.cast_output_root)
+);
+
+gulp.task(
+  "gen-pages-cast-prod",
+  genPagesProdTask(
+    CAST_PAGE_ENTRIES,
+    paths.cast_dir,
+    paths.cast_output_root,
+    paths.cast_output_latest,
+    paths.cast_output_es5
+  )
+);
+
+const DEMO_PAGE_ENTRIES = { "index.html": ["main"] };
+
+gulp.task(
+  "gen-pages-demo-dev",
+  genPagesDevTask(DEMO_PAGE_ENTRIES, paths.demo_dir, paths.demo_output_root)
+);
+
+gulp.task(
+  "gen-pages-demo-prod",
+  genPagesProdTask(
+    DEMO_PAGE_ENTRIES,
+    paths.demo_dir,
+    paths.demo_output_root,
+    paths.demo_output_latest,
+    paths.demo_output_es5
+  )
+);
+
+const GALLERY_PAGE_ENTRIES = { "index.html": ["entrypoint"] };
+
+gulp.task(
+  "gen-pages-gallery-dev",
+  genPagesDevTask(
+    GALLERY_PAGE_ENTRIES,
+    paths.gallery_dir,
+    paths.gallery_output_root
+  )
+);
+
+gulp.task(
+  "gen-pages-gallery-prod",
+  genPagesProdTask(
+    GALLERY_PAGE_ENTRIES,
+    paths.gallery_dir,
+    paths.gallery_output_root,
+    paths.gallery_output_latest
+  )
+);
+
+const HASSIO_PAGE_ENTRIES = { "entrypoint.js": ["entrypoint"] };
+
+gulp.task(
+  "gen-pages-hassio-dev",
+  genPagesDevTask(
+    HASSIO_PAGE_ENTRIES,
+    paths.hassio_dir,
+    paths.hassio_output_root,
+    undefined,
+    "src",
+    paths.hassio_publicPath
+  )
+);
+
+gulp.task(
+  "gen-pages-hassio-prod",
+  genPagesProdTask(
+    HASSIO_PAGE_ENTRIES,
+    paths.hassio_dir,
+    paths.hassio_output_root,
+    paths.hassio_output_latest,
+    paths.hassio_output_es5,
+    "src"
+  )
+);

build-scripts/gulp/fetch-nightly-translations.js

@@ -1,14 +1,15 @@
 // Task to download the latest Lokalise translations from the nightly workflow artifacts
 
-const del = import("del");
-const fs = require("fs/promises");
-const path = require("path");
-const process = require("process");
-const gulp = require("gulp");
-const jszip = require("jszip");
-const tar = require("tar");
-const { Octokit } = require("@octokit/rest");
-const { createOAuthDeviceAuth } = require("@octokit/auth-oauth-device");
+import { createOAuthDeviceAuth } from "@octokit/auth-oauth-device";
+import { retry } from "@octokit/plugin-retry";
+import { Octokit } from "@octokit/rest";
+import { deleteAsync } from "del";
+import { mkdir, readFile, writeFile } from "fs/promises";
+import gulp from "gulp";
+import jszip from "jszip";
+import path from "path";
+import process from "process";
+import { extract } from "tar";
 
 const MAX_AGE = 24; // hours
 const OWNER = "home-assistant";
@@ -37,7 +38,7 @@ gulp.task("fetch-nightly-translations", async function () {
   // and stop if they are not old enough
   let currentArtifact;
   try {
-    currentArtifact = JSON.parse(await fs.readFile(ARTIFACT_FILE, "utf-8"));
+    currentArtifact = JSON.parse(await readFile(ARTIFACT_FILE, "utf-8"));
     const currentAge =
       (Date.now() - Date.parse(currentArtifact.created_at)) / 3600000;
     if (currentAge < MAX_AGE) {
@@ -52,7 +53,7 @@ gulp.task("fetch-nightly-translations", async function () {
   }
 
   // To store file writing promises
-  const createExtractDir = fs.mkdir(EXTRACT_DIR, { recursive: true });
+  const createExtractDir = mkdir(EXTRACT_DIR, { recursive: true });
   const writings = [];
 
   // Authenticate to GitHub using GitHub action token if it exists,
@@ -62,7 +63,7 @@ gulp.task("fetch-nightly-translations", async function () {
     tokenAuth = { token: process.env.GITHUB_TOKEN };
   } else {
     try {
-      tokenAuth = JSON.parse(await fs.readFile(TOKEN_FILE, "utf-8"));
+      tokenAuth = JSON.parse(await readFile(TOKEN_FILE, "utf-8"));
     } catch {
       if (!allowTokenSetup) {
         console.log("No token found so  build wil continue with English only");
@@ -87,7 +88,7 @@ gulp.task("fetch-nightly-translations", async function () {
       tokenAuth = await auth({ type: "oauth" });
       writings.push(
         createExtractDir.then(
-          fs.writeFile(TOKEN_FILE, JSON.stringify(tokenAuth, null, 2))
+          writeFile(TOKEN_FILE, JSON.stringify(tokenAuth, null, 2))
         )
       );
     }
@@ -95,7 +96,7 @@ gulp.task("fetch-nightly-translations", async function () {
 
   // Authenticate with token and request workflow runs from GitHub
   console.log("Fetching new translations...");
-  const octokit = new Octokit({
+  const octokit = new (Octokit.plugin(retry))({
     userAgent: "Fetch Nightly Translations",
     auth: tokenAuth.token,
   });
@@ -131,17 +132,13 @@ gulp.task("fetch-nightly-translations", async function () {
   }
   writings.push(
     createExtractDir.then(
-      fs.writeFile(ARTIFACT_FILE, JSON.stringify(latestArtifact, null, 2))
+      writeFile(ARTIFACT_FILE, JSON.stringify(latestArtifact, null, 2))
     )
   );
 
   // Remove the current translations
   const deleteCurrent = Promise.all(writings).then(
-    (await del).deleteAsync([
-      `${EXTRACT_DIR}/*`,
-      `!${ARTIFACT_FILE}`,
-      `!${TOKEN_FILE}`,
-    ])
+    deleteAsync([`${EXTRACT_DIR}/*`, `!${ARTIFACT_FILE}`, `!${TOKEN_FILE}`])
   );
 
   // Get the download URL and follow the redirect to download (stored as ArrayBuffer)
@@ -159,7 +156,7 @@ gulp.task("fetch-nightly-translations", async function () {
   console.log("Unpacking downloaded translations...");
   const zip = await jszip.loadAsync(downloadResponse.data);
   await deleteCurrent;
-  const extractStream = zip.file(/.*/)[0].nodeStream().pipe(tar.extract());
+  const extractStream = zip.file(/.*/)[0].nodeStream().pipe(extract());
   await new Promise((resolve, reject) => {
     extractStream.on("close", resolve).on("error", reject);
   });

build-scripts/gulp/gallery.js

@@ -1,22 +1,19 @@
-// Run demo develop mode
-const gulp = require("gulp");
-const fs = require("fs");
-const path = require("path");
-const { marked } = require("marked");
-const glob = require("glob");
-const yaml = require("js-yaml");
-
-const env = require("../env.cjs");
-const paths = require("../paths.cjs");
-
-require("./clean.cjs");
-require("./translations.cjs");
-require("./gen-icons-json.cjs");
-require("./gather-static.cjs");
-require("./webpack.cjs");
-require("./service-worker.cjs");
-require("./entry-html.cjs");
-require("./rollup.cjs");
+import fs from "fs";
+import { glob } from "glob";
+import gulp from "gulp";
+import yaml from "js-yaml";
+import { marked } from "marked";
+import path from "path";
+import env from "../env.cjs";
+import paths from "../paths.cjs";
+import "./clean.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./gen-icons-json.js";
+import "./rollup.js";
+import "./service-worker.js";
+import "./translations.js";
+import "./webpack.js";
 
 gulp.task("gather-gallery-pages", async function gatherPages() {
   const pageDir = path.resolve(paths.gallery_dir, "src/pages");
@@ -159,7 +156,7 @@ gulp.task(
       "gather-gallery-pages"
     ),
     "copy-static-gallery",
-    "gen-index-gallery-dev",
+    "gen-pages-gallery-dev",
     gulp.parallel(
       env.useRollup()
         ? "rollup-dev-server-gallery"
@@ -193,6 +190,6 @@ gulp.task(
     ),
     "copy-static-gallery",
     env.useRollup() ? "rollup-prod-gallery" : "webpack-prod-gallery",
-    "gen-index-gallery-prod"
+    "gen-pages-gallery-prod"
   )
 );

build-scripts/gulp/gather-static.js

@@ -1,9 +1,10 @@
 // Gulp task to gather all static files.
 
-const gulp = require("gulp");
-const path = require("path");
-const fs = require("fs-extra");
-const paths = require("../paths.cjs");
+import fs from "fs-extra";
+import gulp from "gulp";
+import path from "path";
+import paths from "../paths.cjs";
+import env from "../env.cjs";
 
 const npmPath = (...parts) =>
   path.resolve(paths.polymer_dir, "node_modules", ...parts);
@@ -59,9 +60,18 @@ function copyPolyfills(staticDir) {
     npmPath("@webcomponents/webcomponentsjs/webcomponents-bundle.js.map"),
     staticPath("polyfills/")
   );
+
+  // dialog-polyfill css
+  copyFileDir(
+    npmPath("dialog-polyfill/dialog-polyfill.css"),
+    staticPath("polyfills/")
+  );
 }
 
 function copyLoaderJS(staticDir) {
+  if (!env.useRollup()) {
+    return;
+  }
   const staticPath = genStaticPath(staticDir);
   copyFileDir(npmPath("systemjs/dist/s.min.js"), staticPath("js"));
   copyFileDir(npmPath("systemjs/dist/s.min.js.map"), staticPath("js"));
@@ -111,9 +121,10 @@ gulp.task("copy-translations-supervisor", async () => {
   copyTranslations(staticDir);
 });
 
-gulp.task("copy-locale-data-supervisor", async () => {
+gulp.task("copy-static-supervisor", async () => {
   const staticDir = paths.hassio_output_static;
   copyLocaleData(staticDir);
+  copyFonts(staticDir);
 });
 
 gulp.task("copy-static-app", async () => {

build-scripts/gulp/gen-icons-json.js

@@ -1,17 +1,15 @@
-const gulp = require("gulp");
-const path = require("path");
-const fs = require("fs");
-const hash = require("object-hash");
+import fs from "fs";
+import gulp from "gulp";
+import hash from "object-hash";
+import path from "path";
+import paths from "../paths.cjs";
 
-const ICON_PACKAGE_PATH = path.resolve(
-  __dirname,
-  "../../node_modules/@mdi/svg/"
-);
+const ICON_PACKAGE_PATH = path.resolve("node_modules/@mdi/svg/");
 const META_PATH = path.resolve(ICON_PACKAGE_PATH, "meta.json");
 const PACKAGE_PATH = path.resolve(ICON_PACKAGE_PATH, "package.json");
 const ICON_PATH = path.resolve(ICON_PACKAGE_PATH, "svg");
-const OUTPUT_DIR = path.resolve(__dirname, "../../build/mdi");
-const REMOVED_ICONS_PATH = path.resolve(__dirname, "../removedIcons.json");
+const OUTPUT_DIR = path.resolve(paths.build_dir, "mdi");
+const REMOVED_ICONS_PATH = new URL("../removedIcons.json", import.meta.url);
 
 const encoding = "utf8";
 

build-scripts/gulp/hassio.js

@@ -1,13 +1,13 @@
-const gulp = require("gulp");
-const env = require("../env.cjs");
-require("./clean.cjs");
-require("./compress.cjs");
-require("./entry-html.cjs");
-require("./gather-static.cjs");
-require("./gen-icons-json.cjs");
-require("./rollup.cjs");
-require("./translations.cjs");
-require("./webpack.cjs");
+import gulp from "gulp";
+import env from "../env.cjs";
+import "./clean.js";
+import "./compress.js";
+import "./entry-html.js";
+import "./gather-static.js";
+import "./gen-icons-json.js";
+import "./rollup.js";
+import "./translations.js";
+import "./webpack.js";
 
 gulp.task(
   "develop-hassio",
@@ -17,11 +17,11 @@ gulp.task(
     },
     "clean-hassio",
     "gen-dummy-icons-json",
-    "gen-index-hassio-dev",
+    "gen-pages-hassio-dev",
     "build-supervisor-translations",
     "copy-translations-supervisor",
     "build-locale-data",
-    "copy-locale-data-supervisor",
+    "copy-static-supervisor",
     env.useRollup() ? "rollup-watch-hassio" : "webpack-watch-hassio"
   )
 );
@@ -37,9 +37,9 @@ gulp.task(
     "build-supervisor-translations",
     "copy-translations-supervisor",
     "build-locale-data",
-    "copy-locale-data-supervisor",
+    "copy-static-supervisor",
     env.useRollup() ? "rollup-prod-hassio" : "webpack-prod-hassio",
-    "gen-index-hassio-prod",
+    "gen-pages-hassio-prod",
     ...// Don't compress running tests
     (env.isTestBuild() ? [] : ["compress-hassio"])
   )

build-scripts/gulp/locale-data.cjs

@@ -1,72 +0,0 @@
-const del = import("del");
-const path = require("path");
-const gulp = require("gulp");
-const fs = require("fs");
-const paths = require("../paths.cjs");
-
-const outDir = "build/locale-data";
-
-gulp.task("clean-locale-data", async () => (await del).deleteSync([outDir]));
-
-gulp.task("ensure-locale-data-build-dir", (done) => {
-  if (!fs.existsSync(outDir)) {
-    fs.mkdirSync(outDir, { recursive: true });
-  }
-  done();
-});
-
-const modules = {
-  "intl-relativetimeformat": "RelativeTimeFormat",
-  "intl-datetimeformat": "DateTimeFormat",
-  "intl-numberformat": "NumberFormat",
-};
-
-gulp.task("create-locale-data", (done) => {
-  const translationMeta = JSON.parse(
-    fs.readFileSync(
-      path.join(paths.translations_src, "translationMetadata.json")
-    )
-  );
-  Object.entries(modules).forEach(([module, className]) => {
-    Object.keys(translationMeta).forEach((lang) => {
-      try {
-        const localeData = String(
-          fs.readFileSync(
-            require.resolve(`@formatjs/${module}/locale-data/${lang}.js`)
-          )
-        )
-          .replace(
-            new RegExp(
-              `\\/\\*\\s*@generated\\s*\\*\\/\\s*\\/\\/\\s*prettier-ignore\\s*if\\s*\\(Intl\\.${className}\\s*&&\\s*typeof\\s*Intl\\.${className}\\.__addLocaleData\\s*===\\s*'function'\\)\\s*{\\s*Intl\\.${className}\\.__addLocaleData\\(`,
-              "im"
-            ),
-            ""
-          )
-          .replace(/\)\s*}/im, "");
-        // make sure we have valid JSON
-        JSON.parse(localeData);
-        if (!fs.existsSync(path.join(outDir, module))) {
-          fs.mkdirSync(path.join(outDir, module), { recursive: true });
-        }
-        fs.writeFileSync(
-          path.join(outDir, `${module}/${lang}.json`),
-          localeData
-        );
-      } catch (e) {
-        if (e.code !== "MODULE_NOT_FOUND") {
-          throw e;
-        }
-      }
-    });
-    done();
-  });
-});
-
-gulp.task(
-  "build-locale-data",
-  gulp.series(
-    "clean-locale-data",
-    "ensure-locale-data-build-dir",
-    "create-locale-data"
-  )
-);

build-scripts/gulp/locale-data.js

@@ -0,0 +1,86 @@
+import { deleteSync } from "del";
+import { mkdir, readFile, writeFile } from "fs/promises";
+import gulp from "gulp";
+import { join, resolve } from "node:path";
+import paths from "../paths.cjs";
+
+const formatjsDir = join(paths.polymer_dir, "node_modules", "@formatjs");
+const outDir = join(paths.build_dir, "locale-data");
+
+const INTL_POLYFILLS = {
+  "intl-datetimeformat": "DateTimeFormat",
+  "intl-displaynames": "DisplayNames",
+  "intl-listformat": "ListFormat",
+  "intl-numberformat": "NumberFormat",
+  "intl-relativetimeformat": "RelativeTimeFormat",
+};
+
+const convertToJSON = async (
+  pkg,
+  lang,
+  subDir = "locale-data",
+  addFunc = "__addLocaleData",
+  skipMissing = true
+) => {
+  let localeData;
+  try {
+    localeData = await readFile(
+      join(formatjsDir, pkg, subDir, `${lang}.js`),
+      "utf-8"
+    );
+  } catch (e) {
+    // Ignore if language is missing (i.e. not supported by @formatjs)
+    if (e.code === "ENOENT" && skipMissing) {
+      console.warn(`Skipped missing data for language ${lang} from ${pkg}`);
+      return;
+    }
+    throw e;
+  }
+  // Convert to JSON
+  const obj = INTL_POLYFILLS[pkg];
+  const dataRegex = new RegExp(
+    `Intl\\.${obj}\\.${addFunc}\\((?<data>.*)\\)`,
+    "s"
+  );
+  localeData = localeData.match(dataRegex)?.groups?.data;
+  if (!localeData) {
+    throw Error(`Failed to extract data for language ${lang} from ${pkg}`);
+  }
+  // Parse to validate JSON, then stringify to minify
+  localeData = JSON.stringify(JSON.parse(localeData));
+  await writeFile(join(outDir, `${pkg}/${lang}.json`), localeData);
+};
+
+gulp.task("clean-locale-data", async () => deleteSync([outDir]));
+
+gulp.task("create-locale-data", async () => {
+  const translationMeta = JSON.parse(
+    await readFile(
+      resolve(paths.translations_src, "translationMetadata.json"),
+      "utf-8"
+    )
+  );
+  const conversions = [];
+  for (const pkg of Object.keys(INTL_POLYFILLS)) {
+    // eslint-disable-next-line no-await-in-loop
+    await mkdir(join(outDir, pkg), { recursive: true });
+    for (const lang of Object.keys(translationMeta)) {
+      conversions.push(convertToJSON(pkg, lang));
+    }
+  }
+  conversions.push(
+    convertToJSON(
+      "intl-datetimeformat",
+      "add-all-tz",
+      ".",
+      "__addTZData",
+      false
+    )
+  );
+  await Promise.all(conversions);
+});
+
+gulp.task(
+  "build-locale-data",
+  gulp.series("clean-locale-data", "create-locale-data")
+);

build-scripts/gulp/rollup.js

@@ -1,13 +1,14 @@
 // Tasks to run Rollup
-const path = require("path");
-const gulp = require("gulp");
-const rollup = require("rollup");
-const handler = require("serve-handler");
-const http = require("http");
-const log = require("fancy-log");
-const open = require("open");
-const rollupConfig = require("../rollup.cjs");
-const paths = require("../paths.cjs");
+
+import log from "fancy-log";
+import gulp from "gulp";
+import http from "http";
+import open from "open";
+import path from "path";
+import { rollup } from "rollup";
+import handler from "serve-handler";
+import paths from "../paths.cjs";
+import rollupConfig from "../rollup.cjs";
 
 const bothBuilds = (createConfigFunc, params) =>
   gulp.series(

build-scripts/gulp/service-worker.cjs

@@ -1,94 +0,0 @@
-// Generate service worker.
-// Based on manifest, create a file with the content as service_worker.js
-const gulp = require("gulp");
-const path = require("path");
-const fs = require("fs-extra");
-const workboxBuild = require("workbox-build");
-const sourceMapUrl = require("source-map-url");
-const paths = require("../paths.cjs");
-
-const swDest = path.resolve(paths.app_output_root, "service_worker.js");
-
-const writeSW = (content) => fs.outputFileSync(swDest, content.trim() + "\n");
-
-gulp.task("gen-service-worker-app-dev", (done) => {
-  writeSW(
-    `
-console.debug('Service worker disabled in development');
-
-self.addEventListener('install', (event) => {
-  // This will activate the dev service worker,
-  // removing any prod service worker the dev might have running
-  self.skipWaiting();
-});
-  `
-  );
-  done();
-});
-
-gulp.task("gen-service-worker-app-prod", async () => {
-  // Read bundled source file
-  const bundleManifestLatest = require(path.resolve(
-    paths.app_output_latest,
-    "manifest.json"
-  ));
-  let serviceWorkerContent = fs.readFileSync(
-    paths.app_output_root + bundleManifestLatest["service_worker.js"],
-    "utf-8"
-  );
-
-  // Delete old file from frontend_latest so manifest won't pick it up
-  fs.removeSync(
-    paths.app_output_root + bundleManifestLatest["service_worker.js"]
-  );
-  fs.removeSync(
-    paths.app_output_root + bundleManifestLatest["service_worker.js.map"]
-  );
-
-  // Remove ES5
-  const bundleManifestES5 = require(path.resolve(
-    paths.app_output_es5,
-    "manifest.json"
-  ));
-  fs.removeSync(paths.app_output_root + bundleManifestES5["service_worker.js"]);
-  fs.removeSync(
-    paths.app_output_root + bundleManifestES5["service_worker.js.map"]
-  );
-
-  const workboxManifest = await workboxBuild.getManifest({
-    // Files that mach this pattern will be considered unique and skip revision check
-    // ignore JS files + translation files
-    dontCacheBustURLsMatching: /(frontend_latest\/.+|static\/translations\/.+)/,
-
-    globDirectory: paths.app_output_root,
-    globPatterns: [
-      "frontend_latest/*.js",
-      // Cache all English translations because we catch them as fallback
-      // Using pattern to match hash instead of * to avoid caching en-GB
-      // 'v' added as valid hash letter because in dev we hash with 'dev'
-      "static/translations/**/en-+([a-fv0-9]).json",
-      // Icon shown on splash screen
-      "static/icons/favicon-192x192.png",
-      "static/icons/favicon.ico",
-      // Common fonts
-      "static/fonts/roboto/Roboto-Light.woff2",
-      "static/fonts/roboto/Roboto-Medium.woff2",
-      "static/fonts/roboto/Roboto-Regular.woff2",
-      "static/fonts/roboto/Roboto-Bold.woff2",
-    ],
-  });
-
-  for (const warning of workboxManifest.warnings) {
-    console.warn(warning);
-  }
-
-  // remove source map and add WB manifest
-  serviceWorkerContent = sourceMapUrl.removeFrom(serviceWorkerContent);
-  serviceWorkerContent = serviceWorkerContent.replace(
-    "WB_MANIFEST",
-    JSON.stringify(workboxManifest.manifestEntries)
-  );
-
-  // Write new file to root
-  fs.writeFileSync(swDest, serviceWorkerContent);
-});

build-scripts/gulp/service-worker.js

@@ -0,0 +1,87 @@
+// Generate service workers
+
+import { deleteAsync } from "del";
+import gulp from "gulp";
+import { mkdir, readFile, symlink, writeFile } from "node:fs/promises";
+import { basename, join, relative } from "node:path";
+import { injectManifest } from "workbox-build";
+import paths from "../paths.cjs";
+
+const SW_MAP = {
+  [paths.app_output_latest]: "modern",
+  [paths.app_output_es5]: "legacy",
+};
+
+const SW_DEV =
+  `
+console.debug('Service worker disabled in development');
+
+self.addEventListener('install', (event) => {
+  // This will activate the dev service worker,
+  // removing any prod service worker the dev might have running
+  self.skipWaiting();
+});
+  `.trim() + "\n";
+
+gulp.task("gen-service-worker-app-dev", async () => {
+  await mkdir(paths.app_output_root, { recursive: true });
+  await Promise.all(
+    Object.values(SW_MAP).map((build) =>
+      writeFile(join(paths.app_output_root, `sw-${build}.js`), SW_DEV, {
+        encoding: "utf-8",
+      })
+    )
+  );
+});
+
+gulp.task("gen-service-worker-app-prod", () =>
+  Promise.all(
+    Object.entries(SW_MAP).map(async ([outPath, build]) => {
+      const manifest = JSON.parse(
+        await readFile(join(outPath, "manifest.json"), "utf-8")
+      );
+      const swSrc = join(paths.app_output_root, manifest["service-worker.js"]);
+      const swDest = join(paths.app_output_root, `sw-${build}.js`);
+      const buildDir = relative(paths.app_output_root, outPath);
+      const { warnings } = await injectManifest({
+        swSrc,
+        swDest,
+        injectionPoint: "__WB_MANIFEST__",
+        // Files that mach this pattern will be considered unique and skip revision check
+        // ignore JS files + translation files
+        dontCacheBustURLsMatching: new RegExp(
+          `(?:${buildDir}/.+|static/translations/.+)`
+        ),
+        globDirectory: paths.app_output_root,
+        globPatterns: [
+          `${buildDir}/*.js`,
+          // Cache all English translations because we catch them as fallback
+          // Using pattern to match hash instead of * to avoid caching en-GB
+          // 'v' added as valid hash letter because in dev we hash with 'dev'
+          "static/translations/**/en-+([a-fv0-9]).json",
+          // Icon shown on splash screen
+          "static/icons/favicon-192x192.png",
+          "static/icons/favicon.ico",
+          // Common fonts
+          "static/fonts/roboto/Roboto-Light.woff2",
+          "static/fonts/roboto/Roboto-Medium.woff2",
+          "static/fonts/roboto/Roboto-Regular.woff2",
+          "static/fonts/roboto/Roboto-Bold.woff2",
+        ],
+        globIgnores: [`${buildDir}/service-worker*`],
+      });
+      if (warnings.length > 0) {
+        console.warn(
+          `Problems while injecting ${build} service worker:\n`,
+          warnings.join("\n")
+        );
+      }
+      await deleteAsync(`${swSrc}?(.map)`);
+      // Needed to install new SW from a cached HTML
+      if (build === "modern") {
+        const swOld = join(paths.app_output_root, "service_worker.js");
+        await symlink(basename(swDest), swOld);
+      }
+    })
+  )
+);

build-scripts/gulp/translations.cjs

@@ -1,447 +0,0 @@
-const del = import("del");
-const crypto = require("crypto");
-const path = require("path");
-const source = require("vinyl-source-stream");
-const vinylBuffer = require("vinyl-buffer");
-const gulp = require("gulp");
-const fs = require("fs");
-const flatmap = require("gulp-flatmap");
-const merge = require("gulp-merge-json");
-const rename = require("gulp-rename");
-const transform = require("gulp-json-transform");
-const { mapFiles } = require("../util.cjs");
-const env = require("../env.cjs");
-const paths = require("../paths.cjs");
-
-require("./fetch-nightly-translations.cjs");
-
-const inFrontendDir = "translations/frontend";
-const inBackendDir = "translations/backend";
-const workDir = "build/translations";
-const fullDir = workDir + "/full";
-const coreDir = workDir + "/core";
-const outDir = workDir + "/output";
-let mergeBackend = false;
-
-gulp.task(
-  "translations-enable-merge-backend",
-  gulp.parallel((done) => {
-    mergeBackend = true;
-    done();
-  }, "allow-setup-fetch-nightly-translations")
-);
-
-// Panel translations which should be split from the core translations.
-const TRANSLATION_FRAGMENTS = Object.keys(
-  require("../../src/translations/en.json").ui.panel
-);
-
-function recursiveFlatten(prefix, data) {
-  let output = {};
-  Object.keys(data).forEach((key) => {
-    if (typeof data[key] === "object") {
-      output = {
-        ...output,
-        ...recursiveFlatten(prefix + key + ".", data[key]),
-      };
-    } else {
-      output[prefix + key] = data[key];
-    }
-  });
-  return output;
-}
-
-function flatten(data) {
-  return recursiveFlatten("", data);
-}
-
-function emptyFilter(data) {
-  const newData = {};
-  Object.keys(data).forEach((key) => {
-    if (data[key]) {
-      if (typeof data[key] === "object") {
-        newData[key] = emptyFilter(data[key]);
-      } else {
-        newData[key] = data[key];
-      }
-    }
-  });
-  return newData;
-}
-
-function recursiveEmpty(data) {
-  const newData = {};
-  Object.keys(data).forEach((key) => {
-    if (data[key]) {
-      if (typeof data[key] === "object") {
-        newData[key] = recursiveEmpty(data[key]);
-      } else {
-        newData[key] = "TRANSLATED";
-      }
-    }
-  });
-  return newData;
-}
-
-/**
- * Replace Lokalise key placeholders with their actual values.
- *
- * We duplicate the behavior of Lokalise here so that placeholders can
- * be included in src/translations/en.json, but still be usable while
- * developing locally.
- *
- * @link https://docs.lokalise.co/article/KO5SZWLLsy-key-referencing
- */
-const re_key_reference = /\[%key:([^%]+)%\]/;
-function lokaliseTransform(data, original, file) {
-  const output = {};
-  Object.entries(data).forEach(([key, value]) => {
-    if (value instanceof Object) {
-      output[key] = lokaliseTransform(value, original, file);
-    } else {
-      output[key] = value.replace(re_key_reference, (_match, lokalise_key) => {
-        const replace = lokalise_key.split("::").reduce((tr, k) => {
-          if (!tr) {
-            throw Error(
-              `Invalid key placeholder ${lokalise_key} in ${file.path}`
-            );
-          }
-          return tr[k];
-        }, original);
-        if (typeof replace !== "string") {
-          throw Error(
-            `Invalid key placeholder ${lokalise_key} in ${file.path}`
-          );
-        }
-        return replace;
-      });
-    }
-  });
-  return output;
-}
-
-gulp.task("clean-translations", async () => (await del).deleteSync([workDir]));
-
-gulp.task("ensure-translations-build-dir", (done) => {
-  if (!fs.existsSync(workDir)) {
-    fs.mkdirSync(workDir, { recursive: true });
-  }
-  done();
-});
-
-gulp.task("create-test-metadata", (cb) => {
-  fs.writeFile(
-    workDir + "/testMetadata.json",
-    JSON.stringify({
-      test: {
-        nativeName: "Test",
-      },
-    }),
-    cb
-  );
-});
-
-gulp.task(
-  "create-test-translation",
-  gulp.series("create-test-metadata", () =>
-    gulp
-      .src(path.join(paths.translations_src, "en.json"))
-      .pipe(transform((data, _file) => recursiveEmpty(data)))
-      .pipe(rename("test.json"))
-      .pipe(gulp.dest(workDir))
-  )
-);
-
-/**
- * This task will build a master translation file, to be used as the base for
- * all languages. This starts with src/translations/en.json, and replaces all
- * Lokalise key placeholders with their target values. Under normal circumstances,
- * this will be the same as translations/en.json However, we build it here to
- * facilitate both making changes in development mode, and to ensure that the
- * project is buildable immediately after merging new translation keys, since
- * the Lokalise update to translations/en.json will not happen immediately.
- */
-gulp.task("build-master-translation", () => {
-  const src = [path.join(paths.translations_src, "en.json")];
-
-  if (mergeBackend) {
-    src.push(path.join(inBackendDir, "en.json"));
-  }
-
-  return gulp
-    .src(src)
-    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
-    .pipe(
-      merge({
-        fileName: "en.json",
-      })
-    )
-    .pipe(gulp.dest(fullDir));
-});
-
-gulp.task("build-merged-translations", () =>
-  gulp
-    .src(
-      [
-        inFrontendDir + "/*.json",
-        "!" + inFrontendDir + "/en.json",
-        workDir + "/test.json",
-      ],
-      {
-        allowEmpty: true,
-      }
-    )
-    .pipe(transform((data, file) => lokaliseTransform(data, data, file)))
-    .pipe(
-      flatmap((stream, file) => {
-        // For each language generate a merged json file. It begins with the master
-        // translation as a failsafe for untranslated strings, and merges all parent
-        // tags into one file for each specific subtag
-        //
-        // TODO: This is a naive interpretation of BCP47 that should be improved.
-        //       Will be OK for now as long as we don't have anything more complicated
-        //       than a base translation + region.
-        const tr = path.basename(file.history[0], ".json");
-        const subtags = tr.split("-");
-        const src = [fullDir + "/en.json"];
-        for (let i = 1; i <= subtags.length; i++) {
-          const lang = subtags.slice(0, i).join("-");
-          if (lang === "test") {
-            src.push(workDir + "/test.json");
-          } else if (lang !== "en") {
-            src.push(inFrontendDir + "/" + lang + ".json");
-            if (mergeBackend) {
-              src.push(inBackendDir + "/" + lang + ".json");
-            }
-          }
-        }
-        return gulp
-          .src(src, { allowEmpty: true })
-          .pipe(transform((data) => emptyFilter(data)))
-          .pipe(
-            merge({
-              fileName: tr + ".json",
-            })
-          )
-          .pipe(gulp.dest(fullDir));
-      })
-    )
-);
-
-let taskName;
-
-const splitTasks = [];
-TRANSLATION_FRAGMENTS.forEach((fragment) => {
-  taskName = "build-translation-fragment-" + fragment;
-  gulp.task(taskName, () =>
-    // Return only the translations for this fragment.
-    gulp
-      .src(fullDir + "/*.json")
-      .pipe(
-        transform((data) => ({
-          ui: {
-            panel: {
-              [fragment]: data.ui.panel[fragment],
-            },
-          },
-        }))
-      )
-      .pipe(gulp.dest(workDir + "/" + fragment))
-  );
-  splitTasks.push(taskName);
-});
-
-taskName = "build-translation-core";
-gulp.task(taskName, () =>
-  // Remove the fragment translations from the core translation.
-  gulp
-    .src(fullDir + "/*.json")
-    .pipe(
-      transform((data, _file) => {
-        TRANSLATION_FRAGMENTS.forEach((fragment) => {
-          delete data.ui.panel[fragment];
-        });
-        delete data.supervisor;
-        return data;
-      })
-    )
-    .pipe(gulp.dest(coreDir))
-);
-
-splitTasks.push(taskName);
-
-gulp.task("build-flattened-translations", () =>
-  // Flatten the split versions of our translations, and move them into outDir
-  gulp
-    .src(
-      TRANSLATION_FRAGMENTS.map(
-        (fragment) => workDir + "/" + fragment + "/*.json"
-      ).concat(coreDir + "/*.json"),
-      { base: workDir }
-    )
-    .pipe(
-      transform((data) =>
-        // Polymer.AppLocalizeBehavior requires flattened json
-        flatten(data)
-      )
-    )
-    .pipe(
-      rename((filePath) => {
-        if (filePath.dirname === "core") {
-          filePath.dirname = "";
-        }
-        // In dev we create the file with the fake hash in the filename
-        if (!env.isProdBuild()) {
-          filePath.basename += "-dev";
-        }
-      })
-    )
-    .pipe(gulp.dest(outDir))
-);
-
-const fingerprints = {};
-
-gulp.task("build-translation-fingerprints", () => {
-  // Fingerprint full file of each language
-  const files = fs.readdirSync(fullDir);
-
-  for (let i = 0; i < files.length; i++) {
-    fingerprints[files[i].split(".")[0]] = {
-      // In dev we create fake hashes
-      hash: env.isProdBuild()
-        ? crypto
-            .createHash("md5")
-            .update(fs.readFileSync(path.join(fullDir, files[i]), "utf-8"))
-            .digest("hex")
-        : "dev",
-    };
-  }
-
-  // In dev we create the file with the fake hash in the filename
-  if (env.isProdBuild()) {
-    mapFiles(outDir, ".json", (filename) => {
-      const parsed = path.parse(filename);
-
-      // nl.json -> nl-<hash>.json
-      if (!(parsed.name in fingerprints)) {
-        throw new Error(`Unable to find hash for ${filename}`);
-      }
-
-      fs.renameSync(
-        filename,
-        `${parsed.dir}/${parsed.name}-${fingerprints[parsed.name].hash}${
-          parsed.ext
-        }`
-      );
-    });
-  }
-
-  const stream = source("translationFingerprints.json");
-  stream.write(JSON.stringify(fingerprints));
-  process.nextTick(() => stream.end());
-  return stream.pipe(vinylBuffer()).pipe(gulp.dest(workDir));
-});
-
-gulp.task("build-translation-fragment-supervisor", () =>
-  gulp
-    .src(fullDir + "/*.json")
-    .pipe(transform((data) => data.supervisor))
-    .pipe(
-      rename((filePath) => {
-        // In dev we create the file with the fake hash in the filename
-        if (!env.isProdBuild()) {
-          filePath.basename += "-dev";
-        }
-      })
-    )
-    .pipe(gulp.dest(workDir + "/supervisor"))
-);
-
-gulp.task("build-translation-flatten-supervisor", () =>
-  gulp
-    .src(workDir + "/supervisor/*.json")
-    .pipe(
-      transform((data) =>
-        // Polymer.AppLocalizeBehavior requires flattened json
-        flatten(data)
-      )
-    )
-    .pipe(gulp.dest(outDir))
-);
-
-gulp.task("build-translation-write-metadata", () =>
-  gulp
-    .src(
-      [
-        path.join(paths.translations_src, "translationMetadata.json"),
-        workDir + "/testMetadata.json",
-        workDir + "/translationFingerprints.json",
-      ],
-      { allowEmpty: true }
-    )
-    .pipe(merge({}))
-    .pipe(
-      transform((data) => {
-        const newData = {};
-        Object.entries(data).forEach(([key, value]) => {
-          // Filter out translations without native name.
-          if (value.nativeName) {
-            newData[key] = value;
-          } else {
-            console.warn(
-              `Skipping language ${key}. Native name was not translated.`
-            );
-          }
-        });
-        return newData;
-      })
-    )
-    .pipe(
-      transform((data) => ({
-        fragments: TRANSLATION_FRAGMENTS,
-        translations: data,
-      }))
-    )
-    .pipe(rename("translationMetadata.json"))
-    .pipe(gulp.dest(workDir))
-);
-
-gulp.task(
-  "create-translations",
-  gulp.series(
-    env.isProdBuild() ? (done) => done() : "create-test-translation",
-    "build-master-translation",
-    "build-merged-translations",
-    gulp.parallel(...splitTasks),
-    "build-flattened-translations"
-  )
-);
-
-gulp.task(
-  "build-translations",
-  gulp.series(
-    gulp.parallel(
-      "fetch-nightly-translations",
-      gulp.series("clean-translations", "ensure-translations-build-dir")
-    ),
-    "create-translations",
-    "build-translation-fingerprints",
-    "build-translation-write-metadata"
-  )
-);
-
-gulp.task(
-  "build-supervisor-translations",
-  gulp.series(
-    gulp.parallel(
-      "fetch-nightly-translations",
-      gulp.series("clean-translations", "ensure-translations-build-dir")
-    ),
-    "build-master-translation",
-    "build-merged-translations",
-    "build-translation-fragment-supervisor",
-    "build-translation-flatten-supervisor",
-    "build-translation-fingerprints",
-    "build-translation-write-metadata"
-  )
-);

build-scripts/gulp/translations.js

@@ -0,0 +1,326 @@
+/* eslint-disable max-classes-per-file */
+
+import { deleteAsync } from "del";
+import { glob } from "glob";
+import gulp from "gulp";
+import rename from "gulp-rename";
+import merge from "lodash.merge";
+import { createHash } from "node:crypto";
+import { mkdir, readFile } from "node:fs/promises";
+import { basename, join } from "node:path";
+import { PassThrough, Transform } from "node:stream";
+import { finished } from "node:stream/promises";
+import env from "../env.cjs";
+import paths from "../paths.cjs";
+import "./fetch-nightly-translations.js";
+
+const inFrontendDir = "translations/frontend";
+const inBackendDir = "translations/backend";
+const workDir = "build/translations";
+const outDir = join(workDir, "output");
+const EN_SRC = join(paths.translations_src, "en.json");
+const TEST_LOCALE = "en-x-test";
+
+let mergeBackend = false;
+
+gulp.task(
+  "translations-enable-merge-backend",
+  gulp.parallel(async () => {
+    mergeBackend = true;
+  }, "allow-setup-fetch-nightly-translations")
+);
+
+// Transform stream to apply a function on Vinyl JSON files (buffer mode only).
+// The provided function can either return a new object, or an array of
+// [object, subdirectory] pairs for fragmentizing the JSON.
+class CustomJSON extends Transform {
+  constructor(func, reviver = null) {
+    super({ objectMode: true });
+    this._func = func;
+    this._reviver = reviver;
+  }
+
+  async _transform(file, _, callback) {
+    try {
+      let obj = JSON.parse(file.contents.toString(), this._reviver);
+      if (this._func) obj = this._func(obj, file.path);
+      for (const [outObj, dir] of Array.isArray(obj) ? obj : [[obj, ""]]) {
+        const outFile = file.clone({ contents: false });
+        outFile.contents = Buffer.from(JSON.stringify(outObj));
+        outFile.dirname += `/${dir}`;
+        this.push(outFile);
+      }
+      callback(null);
+    } catch (err) {
+      callback(err);
+    }
+  }
+}
+
+// Transform stream to merge Vinyl JSON files (buffer mode only).
+class MergeJSON extends Transform {
+  _objects = [];
+
+  constructor(stem, startObj = {}, reviver = null) {
+    super({ objectMode: true, allowHalfOpen: false });
+    this._stem = stem;
+    this._startObj = structuredClone(startObj);
+    this._reviver = reviver;
+  }
+
+  async _transform(file, _, callback) {
+    try {
+      this._objects.push(JSON.parse(file.contents.toString(), this._reviver));
+      if (!this._outFile) this._outFile = file.clone({ contents: false });
+      callback(null);
+    } catch (err) {
+      callback(err);
+    }
+  }
+
+  async _flush(callback) {
+    try {
+      const mergedObj = merge(this._startObj, ...this._objects);
+      this._outFile.contents = Buffer.from(JSON.stringify(mergedObj));
+      this._outFile.stem = this._stem;
+      callback(null, this._outFile);
+    } catch (err) {
+      callback(err);
+    }
+  }
+}
+
+// Utility to flatten object keys to single level using separator
+const flatten = (data, prefix = "", sep = ".") => {
+  const output = {};
+  for (const [key, value] of Object.entries(data)) {
+    if (typeof value === "object") {
+      Object.assign(output, flatten(value, prefix + key + sep, sep));
+    } else {
+      output[prefix + key] = value;
+    }
+  }
+  return output;
+};
+
+// Filter functions that can be passed directly to JSON.parse()
+const emptyReviver = (_key, value) => value || undefined;
+const testReviver = (_key, value) =>
+  value && typeof value === "string" ? "TRANSLATED" : value;
+
+/**
+ * Replace Lokalise key placeholders with their actual values.
+ *
+ * We duplicate the behavior of Lokalise here so that placeholders can
+ * be included in src/translations/en.json, but still be usable while
+ * developing locally.
+ *
+ * @link https://docs.lokalise.com/en/articles/1400528-key-referencing
+ */
+const KEY_REFERENCE = /\[%key:([^%]+)%\]/;
+const lokaliseTransform = (data, path, original = data) => {
+  const output = {};
+  for (const [key, value] of Object.entries(data)) {
+    if (typeof value === "object") {
+      output[key] = lokaliseTransform(value, path, original);
+    } else {
+      output[key] = value.replace(KEY_REFERENCE, (_match, lokalise_key) => {
+        const replace = lokalise_key.split("::").reduce((tr, k) => {
+          if (!tr) {
+            throw Error(`Invalid key placeholder ${lokalise_key} in ${path}`);
+          }
+          return tr[k];
+        }, original);
+        if (typeof replace !== "string") {
+          throw Error(`Invalid key placeholder ${lokalise_key} in ${path}`);
+        }
+        return replace;
+      });
+    }
+  }
+  return output;
+};
+
+gulp.task("clean-translations", () => deleteAsync([workDir]));
+
+const makeWorkDir = () => mkdir(workDir, { recursive: true });
+
+const createTestTranslation = () =>
+  env.isProdBuild()
+    ? Promise.resolve()
+    : gulp
+        .src(EN_SRC)
+        .pipe(new CustomJSON(null, testReviver))
+        .pipe(rename(`${TEST_LOCALE}.json`))
+        .pipe(gulp.dest(workDir));
+
+/**
+ * This task will build a master translation file, to be used as the base for
+ * all languages. This starts with src/translations/en.json, and replaces all
+ * Lokalise key placeholders with their target values. Under normal circumstances,
+ * this will be the same as translations/en.json However, we build it here to
+ * facilitate both making changes in development mode, and to ensure that the
+ * project is buildable immediately after merging new translation keys, since
+ * the Lokalise update to translations/en.json will not happen immediately.
+ */
+const createMasterTranslation = () =>
+  gulp
+    .src([EN_SRC, ...(mergeBackend ? [`${inBackendDir}/en.json`] : [])])
+    .pipe(new CustomJSON(lokaliseTransform))
+    .pipe(new MergeJSON("en"))
+    .pipe(gulp.dest(workDir));
+
+const FRAGMENTS = ["base"];
+
+const toggleSupervisorFragment = async () => {
+  FRAGMENTS[0] = "supervisor";
+};
+
+const panelFragment = (fragment) =>
+  fragment !== "base" && fragment !== "supervisor";
+
+const HASHES = new Map();
+
+const createTranslations = async () => {
+  // Parse and store the master to avoid repeating this for each locale, then
+  // add the panel fragments when processing the app.
+  const enMaster = JSON.parse(await readFile(`${workDir}/en.json`, "utf-8"));
+  if (FRAGMENTS[0] === "base") {
+    FRAGMENTS.push(...Object.keys(enMaster.ui.panel));
+  }
+
+  // The downstream pipeline is setup first.  It hashes the merged data for
+  // each locale, then fragmentizes and flattens the data for final output.
+  const translationFiles = await glob([
+    `${inFrontendDir}/!(en).json`,
+    ...(env.isProdBuild() ? [] : [`${workDir}/${TEST_LOCALE}.json`]),
+  ]);
+  const hashStream = new Transform({
+    objectMode: true,
+    transform: async (file, _, callback) => {
+      const hash = env.isProdBuild()
+        ? createHash("md5").update(file.contents).digest("hex")
+        : "dev";
+      HASHES.set(file.stem, hash);
+      file.stem += `-${hash}`;
+      callback(null, file);
+    },
+  }).setMaxListeners(translationFiles.length + 1);
+  const fragmentsStream = hashStream
+    .pipe(
+      new CustomJSON((data) =>
+        FRAGMENTS.map((fragment) => {
+          switch (fragment) {
+            case "base":
+              // Remove the panels and supervisor to create the base translations
+              return [
+                flatten({
+                  ...data,
+                  ui: { ...data.ui, panel: undefined },
+                  supervisor: undefined,
+                }),
+                "",
+              ];
+            case "supervisor":
+              // Supervisor key is at the top level
+              return [flatten(data.supervisor), ""];
+            default:
+              // Create a fragment with only the given panel
+              return [
+                flatten(data.ui.panel[fragment], `ui.panel.${fragment}.`),
+                fragment,
+              ];
+          }
+        })
+      )
+    )
+    .pipe(gulp.dest(outDir));
+
+  // Send the English master downstream first, then for each other locale
+  // generate merged JSON data to continue piping. It begins with the master
+  // translation as a failsafe for untranslated strings, and merges all parent
+  // tags into one file for each specific subtag
+  //
+  // TODO: This is a naive interpretation of BCP47 that should be improved.
+  //       Will be OK for now as long as we don't have anything more complicated
+  // than a base translation + region.
+  const masterStream = gulp
+    .src(`${workDir}/en.json`)
+    .pipe(new PassThrough({ objectMode: true }));
+  masterStream.pipe(hashStream, { end: false });
+  const mergesFinished = [finished(masterStream)];
+  for (const translationFile of translationFiles) {
+    const locale = basename(translationFile, ".json");
+    const subtags = locale.split("-");
+    const mergeFiles = [];
+    for (let i = 1; i <= subtags.length; i++) {
+      const lang = subtags.slice(0, i).join("-");
+      if (lang === TEST_LOCALE) {
+        mergeFiles.push(`${workDir}/${TEST_LOCALE}.json`);
+      } else if (lang !== "en") {
+        mergeFiles.push(`${inFrontendDir}/${lang}.json`);
+        if (mergeBackend) {
+          mergeFiles.push(`${inBackendDir}/${lang}.json`);
+        }
+      }
+    }
+    const mergeStream = gulp
+      .src(mergeFiles, { allowEmpty: true })
+      .pipe(new MergeJSON(locale, enMaster, emptyReviver));
+    mergesFinished.push(finished(mergeStream));
+    mergeStream.pipe(hashStream, { end: false });
+  }
+
+  // Wait for all merges to finish, then it's safe to end writing to the
+  // downstream pipeline and wait for all fragments to finish writing.
+  await Promise.all(mergesFinished);
+  hashStream.end();
+  await finished(fragmentsStream);
+};
+
+const writeTranslationMetaData = () =>
+  gulp
+    .src([`${paths.translations_src}/translationMetadata.json`])
+    .pipe(
+      new CustomJSON((meta) => {
+        // Add the test translation in development.
+        if (!env.isProdBuild()) {
+          meta[TEST_LOCALE] = { nativeName: "Translation Test" };
+        }
+        // Filter out locales without a native name, and add the hashes.
+        for (const locale of Object.keys(meta)) {
+          if (!meta[locale].nativeName) {
+            meta[locale] = undefined;
+            console.warn(
+              `Skipping locale ${locale} because native name is not translated.`
+            );
+          } else {
+            meta[locale].hash = HASHES.get(locale);
+          }
+        }
+        return {
+          fragments: FRAGMENTS.filter(panelFragment),
+          translations: meta,
+        };
+      })
+    )
+    .pipe(gulp.dest(workDir));
+
+gulp.task(
+  "build-translations",
+  gulp.series(
+    gulp.parallel(
+      "fetch-nightly-translations",
+      gulp.series("clean-translations", makeWorkDir)
+    ),
+    createTestTranslation,
+    createMasterTranslation,
+    createTranslations,
+    writeTranslationMetaData
+  )
+);
+
+gulp.task(
+  "build-supervisor-translations",
+  gulp.series(toggleSupervisorFragment, "build-translations")
+);

build-scripts/gulp/wds.cjs

@@ -1,11 +0,0 @@
-// Tasks to run Rollup
-const gulp = require("gulp");
-const { startDevServer } = require("@web/dev-server");
-
-gulp.task("wds-watch-app", () => {
-  startDevServer({
-    config: {
-      watch: true,
-    },
-  });
-});

build-scripts/gulp/wds.js

@@ -0,0 +1,10 @@
+import gulp from "gulp";
+import { startDevServer } from "@web/dev-server";
+
+gulp.task("wds-watch-app", async () => {
+  startDevServer({
+    config: {
+      watch: true,
+    },
+  });
+});

build-scripts/gulp/webpack.js

@@ -1,19 +1,20 @@
 // Tasks to run webpack.
-const fs = require("fs");
-const gulp = require("gulp");
-const webpack = require("webpack");
-const WebpackDevServer = require("webpack-dev-server");
-const log = require("fancy-log");
-const path = require("path");
-const env = require("../env.cjs");
-const paths = require("../paths.cjs");
-const {
+
+import fs from "fs";
+import path from "path";
+import log from "fancy-log";
+import gulp from "gulp";
+import webpack from "webpack";
+import WebpackDevServer from "webpack-dev-server";
+import env from "../env.cjs";
+import paths from "../paths.cjs";
+import {
   createAppConfig,
-  createDemoConfig,
   createCastConfig,
-  createHassioConfig,
+  createDemoConfig,
   createGalleryConfig,
-} = require("../webpack.cjs");
+  createHassioConfig,
+} from "../webpack.cjs";
 
 const bothBuilds = (createConfigFunc, params) => [
   createConfigFunc({ ...params, latestBuild: true }),
@@ -39,10 +40,15 @@ const runDevServer = async ({
   compiler,
   contentBase,
   port,
-  listenHost = "localhost",
+  listenHost = undefined,
 }) => {
+  if (listenHost === undefined) {
+    // For dev container, we need to listen on all hosts
+    listenHost = env.isDevContainer() ? "0.0.0.0" : "localhost";
+  }
   const server = new WebpackDevServer(
     {
+      hot: false,
       open: true,
       host: listenHost,
       port,
@@ -97,7 +103,7 @@ gulp.task("webpack-watch-app", () => {
   ).watch({ poll: isWsl }, doneHandler());
   gulp.watch(
     path.join(paths.translations_src, "en.json"),
-    gulp.series("create-translations", "copy-translations-app")
+    gulp.series("build-translations", "copy-translations-app")
   );
 });
 
@@ -113,7 +119,9 @@ gulp.task("webpack-prod-app", () =>
 
 gulp.task("webpack-dev-server-demo", () =>
   runDevServer({
-    compiler: webpack(bothBuilds(createDemoConfig, { isProdBuild: false })),
+    compiler: webpack(
+      createDemoConfig({ isProdBuild: false, latestBuild: true })
+    ),
     contentBase: paths.demo_output_root,
     port: 8090,
   })
@@ -129,7 +137,9 @@ gulp.task("webpack-prod-demo", () =>
 
 gulp.task("webpack-dev-server-cast", () =>
   runDevServer({
-    compiler: webpack(bothBuilds(createCastConfig, { isProdBuild: false })),
+    compiler: webpack(
+      createCastConfig({ isProdBuild: false, latestBuild: true })
+    ),
     contentBase: paths.cast_output_root,
     port: 8080,
     // Accessible from the network, because that's how Cast hits it.
@@ -172,8 +182,9 @@ gulp.task("webpack-prod-hassio", () =>
 
 gulp.task("webpack-dev-server-gallery", () =>
   runDevServer({
-    // We don't use the es5 build, but the dev server will fuck up the publicPath if we don't
-    compiler: webpack(bothBuilds(createGalleryConfig, { isProdBuild: false })),
+    compiler: webpack(
+      createGalleryConfig({ isProdBuild: false, latestBuild: true })
+    ),
     contentBase: paths.gallery_output_root,
     port: 8100,
     listenHost: "0.0.0.0",

build-scripts/list-plugins-and-polyfills.js

@@ -0,0 +1,83 @@
+#!/usr/bin/env node
+// Script to print Babel plugins and Core JS polyfills that will be used by browserslist environments
+
+import { version as babelVersion } from "@babel/core";
+import presetEnv from "@babel/preset-env";
+import compilationTargets from "@babel/helper-compilation-targets";
+import coreJSCompat from "core-js-compat";
+import { logPlugin } from "@babel/preset-env/lib/debug.js";
+// eslint-disable-next-line import/no-relative-packages
+import shippedPolyfills from "../node_modules/babel-plugin-polyfill-corejs3/lib/shipped-proposals.js";
+import { babelOptions } from "./bundle.cjs";
+
+const detailsOpen = (heading) =>
+  `<details>\n<summary><h4>${heading}</h4></summary>\n`;
+const detailsClose = "</details>\n";
+
+const dummyAPI = {
+  version: babelVersion,
+  assertVersion: () => {},
+  caller: (callback) =>
+    callback({
+      name: "Dummy Bundler",
+      supportsStaticESM: true,
+      supportsDynamicImport: true,
+      supportsTopLevelAwait: true,
+      supportsExportNamespaceFrom: true,
+    }),
+  targets: () => ({}),
+};
+
+// Generate filter function based on proposal/method inputs
+// Copied and adapted from babel-plugin-polyfill-corejs3/esm/index.mjs
+const polyfillFilter = (method, proposals, shippedProposals) => (name) => {
+  if (proposals || method === "entry-global") return true;
+  if (shippedProposals && shippedPolyfills.default.has(name)) {
+    return true;
+  }
+  if (name.startsWith("esnext.")) {
+    const esName = `es.${name.slice(7)}`;
+    // If its imaginative esName is not in latest compat data, it means the proposal is not stage 4
+    return esName in coreJSCompat.data;
+  }
+  return true;
+};
+
+// Log the plugins and polyfills for each build environment
+for (const buildType of ["Modern", "Legacy"]) {
+  const browserslistEnv = buildType.toLowerCase();
+  const babelOpts = babelOptions({ latestBuild: browserslistEnv === "modern" });
+  const presetEnvOpts = babelOpts.presets[0][1];
+
+  // Invoking preset-env in debug mode will log the included plugins
+  console.log(detailsOpen(`${buildType} Build Babel Plugins`));
+  presetEnv.default(dummyAPI, {
+    ...presetEnvOpts,
+    browserslistEnv,
+    debug: true,
+  });
+  console.log(detailsClose);
+
+  // Manually log the Core-JS polyfills using the same technique
+  if (presetEnvOpts.useBuiltIns) {
+    console.log(detailsOpen(`${buildType} Build Core-JS Polyfills`));
+    const targets = compilationTargets.default(babelOpts?.targets, {
+      browserslistEnv,
+    });
+    const polyfillList = coreJSCompat({ targets }).list.filter(
+      polyfillFilter(
+        `${presetEnvOpts.useBuiltIns}-global`,
+        presetEnvOpts?.corejs?.proposals,
+        presetEnvOpts?.shippedProposals
+      )
+    );
+    console.log(
+      "The following %i polyfills may be injected by Babel:\n",
+      polyfillList.length
+    );
+    for (const polyfill of polyfillList) {
+      logPlugin(polyfill, targets, coreJSCompat.data);
+    }
+    console.log(detailsClose);
+  }
+}

build-scripts/rollup.cjs

@@ -142,4 +142,5 @@ module.exports = {
   createCastConfig,
   createHassioConfig,
   createGalleryConfig,
+  createRollupConfig,
 };

build-scripts/util.cjs

@@ -1,16 +0,0 @@
-const path = require("path");
-const fs = require("fs");
-
-// Helper function to map recursively over files in a folder and it's subfolders
-module.exports.mapFiles = function mapFiles(startPath, filter, mapFunc) {
-  const files = fs.readdirSync(startPath);
-  for (let i = 0; i < files.length; i++) {
-    const filename = path.join(startPath, files[i]);
-    const stat = fs.lstatSync(filename);
-    if (stat.isDirectory()) {
-      mapFiles(filename, filter, mapFunc);
-    } else if (filename.indexOf(filter) >= 0) {
-      mapFunc(filename);
-    }
-  }
-};

build-scripts/webpack.cjs

@@ -1,9 +1,16 @@
-const webpack = require("webpack");
+const { existsSync } = require("fs");
 const path = require("path");
+const webpack = require("webpack");
+const { StatsWriterPlugin } = require("webpack-stats-plugin");
+const filterStats = require("@bundle-stats/plugin-webpack-filter").default;
 const TerserPlugin = require("terser-webpack-plugin");
 const { WebpackManifestPlugin } = require("webpack-manifest-plugin");
 const log = require("fancy-log");
 const WebpackBar = require("webpackbar");
+const {
+  TransformAsyncModulesPlugin,
+} = require("transform-async-modules-webpack-plugin");
+const { dependencies } = require("../package.json");
 const paths = require("./paths.cjs");
 const bundle = require("./bundle.cjs");
 
@@ -41,32 +48,40 @@ const createWebpackConfig = ({
   return {
     name,
     mode: isProdBuild ? "production" : "development",
-    target: ["web", latestBuild ? "es2017" : "es5"],
+    target: `browserslist:${latestBuild ? "modern" : "legacy"}`,
     // For tests/CI, source maps are skipped to gain build speed
     // For production, generate source maps for accurate stack traces without source code
     // For development, generate "cheap" versions that can map to original line numbers
     devtool: isTestBuild
       ? false
       : isProdBuild
-      ? "nosources-source-map"
-      : "eval-cheap-module-source-map",
+        ? "nosources-source-map"
+        : "eval-cheap-module-source-map",
     entry,
     node: false,
     module: {
       rules: [
         {
           test: /\.m?js$|\.ts$/,
-          use: {
+          use: (info) => ({
             loader: "babel-loader",
             options: {
-              ...bundle.babelOptions({ latestBuild, isProdBuild, isTestBuild }),
+              ...bundle.babelOptions({
+                latestBuild,
+                isProdBuild,
+                isTestBuild,
+                sw: info.issuerLayer === "sw",
+              }),
               cacheDirectory: !isProdBuild,
               cacheCompression: false,
             },
-          },
+          }),
           resolve: {
             fullySpecified: false,
           },
+          parser: {
+            worker: ["*context.audioWorklet.addModule()", "..."],
+          },
         },
         {
           test: /\.css$/,
@@ -84,6 +99,17 @@ const createWebpackConfig = ({
       ],
       moduleIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
       chunkIds: isProdBuild && !isStatsBuild ? "deterministic" : "named",
+      splitChunks: {
+        // Disable splitting for web workers and worklets because imports of
+        // external chunks are broken for:
+        // - ESM output: https://github.com/webpack/webpack/issues/17014
+        // - Worklets use `importScripts`: https://github.com/webpack/webpack/issues/11543
+        chunks: (chunk) =>
+          !chunk.canBeInitial() &&
+          !new RegExp(`^.+-work${latestBuild ? "(?:let|er)" : "let"}$`).test(
+            chunk.name
+          ),
+      },
     },
     plugins: [
       !isStatsBuild && new WebpackBar({ fancy: !isProdBuild }),
@@ -133,10 +159,25 @@ const createWebpackConfig = ({
         path.resolve(paths.polymer_dir, "src/util/empty.js")
       ),
       !isProdBuild && new LogStartCompilePlugin(),
+      isProdBuild &&
+        new StatsWriterPlugin({
+          filename: path.relative(
+            outputPath,
+            path.join(paths.build_dir, "stats", `${name}.json`)
+          ),
+          stats: { assets: true, chunks: true, modules: true },
+          transform: (stats) => JSON.stringify(filterStats(stats)),
+        }),
+      !latestBuild &&
+        new TransformAsyncModulesPlugin({
+          browserslistEnv: "legacy",
+          runtime: { version: dependencies["@babel/runtime"] },
+        }),
     ].filter(Boolean),
     resolve: {
       extensions: [".ts", ".js", ".json"],
       alias: {
+        "lit/static-html$": "lit/static-html.js",
         "lit/decorators$": "lit/decorators.js",
         "lit/directive$": "lit/directive.js",
         "lit/directives/until$": "lit/directives/until.js",
@@ -146,20 +187,27 @@ const createWebpackConfig = ({
         "lit/directives/guard$": "lit/directives/guard.js",
         "lit/directives/cache$": "lit/directives/cache.js",
         "lit/directives/repeat$": "lit/directives/repeat.js",
+        "lit/directives/live$": "lit/directives/live.js",
         "lit/polyfill-support$": "lit/polyfill-support.js",
         "@lit-labs/virtualizer/layouts/grid":
           "@lit-labs/virtualizer/layouts/grid.js",
+        "@lit-labs/virtualizer/polyfills/resize-observer-polyfill/ResizeObserver":
+          "@lit-labs/virtualizer/polyfills/resize-observer-polyfill/ResizeObserver.js",
+        "@lit-labs/observers/resize-controller":
+          "@lit-labs/observers/resize-controller.js",
       },
     },
     output: {
+      module: latestBuild,
       filename: ({ chunk }) =>
         !isProdBuild || isStatsBuild || dontHash.has(chunk.name)
           ? "[name].js"
-          : "[name]-[contenthash].js",
+          : "[name].[contenthash].js",
       chunkFilename:
-        isProdBuild && !isStatsBuild ? "[id]-[contenthash].js" : "[name].js",
+        isProdBuild && !isStatsBuild ? "[name].[contenthash].js" : "[name].js",
       assetModuleFilename:
-        isProdBuild && !isStatsBuild ? "[id]-[contenthash][ext]" : "[id][ext]",
+        isProdBuild && !isStatsBuild ? "[id].[contenthash][ext]" : "[id][ext]",
+      crossOriginLoading: "use-credentials",
       hashFunction: "xxhash64",
       hashDigest: "base64url",
       hashDigestLength: 11, // full length of 64 bit base64url
@@ -170,22 +218,30 @@ const createWebpackConfig = ({
       // Since production source maps don't include sources, we need to point to them elsewhere
       // For dependencies, just provide the path (no source in browser)
       // Otherwise, point to the raw code on GitHub for browser to load
-      devtoolModuleFilenameTemplate:
-        !isTestBuild && isProdBuild
-          ? (info) => {
-              const sourcePath = info.resourcePath.replace(/^\.\//, "");
-              if (
-                sourcePath.startsWith("node_modules") ||
-                sourcePath.startsWith("webpack")
-              ) {
-                return `no-source/${sourcePath}`;
+      ...Object.fromEntries(
+        ["", "Fallback"].map((v) => [
+          `devtool${v}ModuleFilenameTemplate`,
+          !isTestBuild && isProdBuild
+            ? (info) => {
+                if (
+                  !path.isAbsolute(info.absoluteResourcePath) ||
+                  !existsSync(info.resourcePath) ||
+                  info.resourcePath.startsWith("./node_modules")
+                ) {
+                  // Source URLs are unknown for dependencies, so we use a relative URL with a
+                  // non - existent top directory.  This results in a clean source tree in browser
+                  // dev tools, and they stay happy getting 404s with valid requests.
+                  return `/unknown${path.resolve("/", info.resourcePath)}`;
+                }
+                return new URL(info.resourcePath, bundle.sourceMapURL()).href;
               }
-              return `${bundle.sourceMapURL()}/${sourcePath}`;
-            }
-          : undefined,
+            : undefined,
+        ])
+      ),
     },
     experiments: {
-      topLevelAwait: true,
+      layers: true,
+      outputModule: true,
     },
   };
 };
@@ -232,4 +288,5 @@ module.exports = {
   createCastConfig,
   createHassioConfig,
   createGalleryConfig,
+  createWebpackConfig,
 };

cast/public/service_worker.js

@@ -1,3 +0,0 @@
-self.addEventListener("fetch", function(event) {
-  event.respondWith(fetch(event.request));
-});

cast/public/sw-legacy.js

@@ -0,0 +1,5 @@
+"use strict";
+
+self.addEventListener("fetch", (event) => {
+  event.respondWith(fetch(event.request));
+});

cast/public/sw-modern.js

@@ -0,0 +1,3 @@
+self.addEventListener("fetch", (event) => {
+  event.respondWith(fetch(event.request));
+});

cast/src/html/_social_meta.html.template

@@ -0,0 +1,24 @@
+<meta property="fb:app_id" content="338291289691179" />
+<meta property="og:title" content="Home Assistant Cast" />
+<meta property="og:site_name" content="Home Assistant Cast" />
+<meta property="og:url" content="https://cast.home-assistant.io/" />
+<meta property="og:type" content="website" />
+<meta
+  property="og:description"
+  content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen."
+/>
+<meta
+  property="og:image"
+  content="https://cast.home-assistant.io/images/google-nest-hub.png"
+/>
+<meta name="twitter:card" content="summary_large_image" />
+<meta name="twitter:site" content="@home_assistant" />
+<meta name="twitter:title" content="Home Assistant Cast" />
+<meta
+  name="twitter:description"
+  content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen."
+/>
+<meta
+  name="twitter:image"
+  content="https://cast.home-assistant.io/images/google-nest-hub.png"
+/>

cast/src/html/faq.html.template

@@ -3,7 +3,7 @@
   <head>
     <title>Home Assistant Cast - FAQ</title>
     <link rel="icon" href="/images/ha-cast-icon.png" type="image/png" />
-    <%= renderTemplate('_style_base') %>
+    <%= renderTemplate("../../../src/html/_style_base.html.template") %>
     <style>
       body {
         background-color: #e5e5e5;
@@ -35,25 +35,8 @@
     />
   </head>
   <body>
-    <%= renderTemplate('_js_base') %>
-
-    <script>
-      import("<%= latestLauncherJS %>");
-      window.latestJS = true;
-    </script>
-
-    <script>
-      if (!window.latestJS) {
-        <% if (useRollup) { %>
-          _ls("/static/js/s.min.js").onload = function() {
-            System.import("<%= es5LauncherJS %>");
-          };
-        <% } else { %>
-          _ls("<%= es5LauncherJS %>");
-        <% } %>
-      }
-    </script>
-
+    <%= renderTemplate("../../../src/html/_js_base.html.template") %>
+    <%= renderTemplate("../../../src/html/_script_loader.html.template") %>
     <hc-layout subtitle="FAQ">
       <style>
         a {
@@ -156,7 +139,7 @@
         </p>
       </div>
 
-      <div class="section-header">Wat does Home Assistant Cast do?</div>
+      <div class="section-header">What does Home Assistant Cast do?</div>
       <div class="card-content">
         <p>
           Home Assistant Cast is a receiver application for the Chromecast. When
@@ -243,17 +226,5 @@ http:
         </p>
       </div>
     </hc-layout>
-
-    <script>
-      var _gaq = [["_setAccount", "UA-57927901-9"], ["_trackPageview"]];
-      (function (d, t) {
-        var g = d.createElement(t),
-          s = d.getElementsByTagName(t)[0];
-        g.src =
-          ("https:" == location.protocol ? "//ssl" : "//www") +
-          ".google-analytics.com/ga.js";
-        s.parentNode.insertBefore(g, s);
-      })(document, "script");
-    </script>
   </body>
 </html>

cast/src/html/index.html.template

@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Home Assistant Cast</title>
+    <link rel="manifest" href="/manifest.json" />
+    <link rel="icon" href="/images/ha-cast-icon.png" type="image/png" />
+    <%= renderTemplate("../../../src/html/_style_base.html.template") %>
+    <style>
+      body {
+        background-color: #e5e5e5;
+      }
+    </style>
+    <%= renderTemplate("_social_meta.html.template") %>
+  </head>
+  <body>
+    <hc-connect></hc-connect>
+    <%= renderTemplate("../../../src/html/_js_base.html.template") %>
+    <%= renderTemplate("../../../src/html/_script_loader.html.template") %>
+    <script>
+    (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+    (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+    m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+    })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
+
+    ga('create', 'UA-57927901-9', 'auto');
+    ga('send', 'pageview', location.pathname.includes("auth_callback") === -1 ? location.pathname : "/");
+    </script>
+  </body>
+</html>

cast/src/html/launcher.html.template

@@ -1,57 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Home Assistant Cast</title>
-    <link rel="manifest" href="/manifest.json" />
-    <link rel="icon" href="/images/ha-cast-icon.png" type="image/png" />
-    <%= renderTemplate('_style_base') %>
-    <style>
-      body {
-        background-color: #e5e5e5;
-      }
-    </style>
-    <meta property="fb:app_id" content="338291289691179">
-    <meta property="og:title" content="Home Assistant Cast">
-    <meta property="og:site_name" content="Home Assistant Cast">
-    <meta property="og:url" content="https://cast.home-assistant.io/">
-    <meta property="og:type" content="website">
-    <meta property="og:description" content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen.">
-    <meta property="og:image" content="https://cast.home-assistant.io/images/google-nest-hub.png">
-    <meta name="twitter:card" content="summary_large_image">
-    <meta name="twitter:site" content="@home_assistant">
-    <meta name="twitter:title" content="Home Assistant Cast">
-    <meta name="twitter:description" content="Show Home Assistant on your Chromecast or Google Assistant devices with a screen.">
-    <meta name="twitter:image" content="https://cast.home-assistant.io/images/google-nest-hub.png">
-  </head>
-  <body>
-    <%= renderTemplate('_js_base') %>
-
-    <hc-connect></hc-connect>
-
-    <script>
-      import("<%= latestLauncherJS %>");
-      window.latestJS = true;
-    </script>
-
-    <script>
-      if (!window.latestJS) {
-        <% if (useRollup) { %>
-          _ls("/static/js/s.min.js").onload = function() {
-            System.import("<%= es5LauncherJS %>");
-          };
-        <% } else { %>
-          _ls("<%= es5LauncherJS %>");
-        <% } %>
-      }
-    </script>
-    <script>
-    (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-    (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-    m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-    })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
-
-    ga('create', 'UA-57927901-9', 'auto');
-    ga('send', 'pageview', location.pathname.includes("auth_callback") === -1 ? location.pathname : "/");
-    </script>
-  </body>
-</html>

cast/src/html/media.html.template

@@ -14,33 +14,10 @@
         --background-color: #41bdf5;
       }
     </style>
-    <script>
-      var _gaq=[['_setAccount','UA-57927901-10'],['_trackPageview']];
-      (function(d,t){var g=d.createElement(t),s=d.getElementsByTagName(t)[0];
-      g.src=('https:'==location.protocol?'//ssl':'//www')+'.google-analytics.com/ga.js';
-      s.parentNode.insertBefore(g,s)}(document,'script'));
-    </script>
   </head>
   <body>
-    <%= renderTemplate('_js_base') %>
-
     <cast-media-player></cast-media-player>
-
-    <script>
-      import("<%= latestMediaJS %>");
-      window.latestJS = true;
-    </script>
-
-    <script>
-      if (!window.latestJS) {
-        <% if (useRollup) { %>
-          _ls("/static/js/s.min.js").onload = function() {
-            System.import("<%= es5MediaJS %>");
-          };
-        <% } else { %>
-          _ls("<%= es5MediaJS %>");
-        <% } %>
-      }
-    </script>
+    <%= renderTemplate("../../../src/html/_js_base.html.template") %>
+    <%= renderTemplate("../../../src/html/_script_loader.html.template") %>
   </body>
 </html>

cast/src/html/receiver.html.template

@@ -1,18 +1,14 @@
 <!DOCTYPE html>
 <html>
   <script src="//www.gstatic.com/cast/sdk/libs/caf_receiver/v3/cast_receiver_framework.js"></script>
-  <script type="module" src="<%= latestReceiverJS %>"></script>
-  <%= renderTemplate('_style_base') %>
+  <% for (const entry of latestEntryJS) { %>
+    <script type="module" src="<%= entry %>"></script>
+  <% } %>
+  <%= renderTemplate("../../../src/html/_style_base.html.template") %>
   <style>
     body {
       background-color: white;
       font-size: initial;
     }
   </style>
-  <script>
-  var _gaq=[['_setAccount','UA-57927901-10'],['_trackPageview']];
-  (function(d,t){var g=d.createElement(t),s=d.getElementsByTagName(t)[0];
-  g.src=('https:'==location.protocol?'//ssl':'//www')+'.google-analytics.com/ga.js';
-  s.parentNode.insertBefore(g,s)}(document,'script'));
-  </script>
 </html>

cast/src/launcher/entrypoint.ts

@@ -1,4 +1,3 @@
-import "../../../src/resources/safari-14-attachshadow-patch";
-import "../../../src/resources/ha-style";
-import "../../../src/resources/roboto";
 import "./layout/hc-connect";
+
+import("../../../src/resources/ha-style");

cast/src/launcher/layout/hc-cast.ts

@@ -1,9 +1,8 @@
 import "@material/mwc-button/mwc-button";
-import { mdiCast, mdiCastConnected } from "@mdi/js";
-import "@polymer/paper-item/paper-icon-item";
-import "@polymer/paper-listbox/paper-listbox";
+import { ActionDetail } from "@material/mwc-list/mwc-list";
+import { mdiCast, mdiCastConnected, mdiViewDashboard } from "@mdi/js";
 import { Auth, Connection } from "home-assistant-js-websocket";
-import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
+import { CSSResultGroup, LitElement, TemplateResult, css, html } from "lit";
 import { customElement, property, state } from "lit/decorators";
 import { CastManager } from "../../../../src/cast/cast_manager";
 import {
@@ -22,26 +21,28 @@ import "../../../../src/components/ha-svg-icon";
 import {
   getLegacyLovelaceCollection,
   getLovelaceCollection,
-  LovelaceConfig,
 } from "../../../../src/data/lovelace";
+import { isStrategyDashboard } from "../../../../src/data/lovelace/config/types";
+import { LovelaceViewConfig } from "../../../../src/data/lovelace/config/view";
 import "../../../../src/layouts/hass-loading-screen";
 import { generateDefaultViewConfig } from "../../../../src/panels/lovelace/common/generate-lovelace-config";
 import "./hc-layout";
+import "../../../../src/components/ha-list-item";
 
 @customElement("hc-cast")
 class HcCast extends LitElement {
-  @property() public auth!: Auth;
+  @property({ attribute: false }) public auth!: Auth;
 
-  @property() public connection!: Connection;
+  @property({ attribute: false }) public connection!: Connection;
 
-  @property() public castManager!: CastManager;
+  @property({ attribute: false }) public castManager!: CastManager;
 
   @state() private askWrite = false;
 
-  @state() private lovelaceConfig?: LovelaceConfig | null;
+  @state() private lovelaceViews?: LovelaceViewConfig[] | null;
 
   protected render(): TemplateResult {
-    if (this.lovelaceConfig === undefined) {
+    if (this.lovelaceViews === undefined) {
       return html`<hass-loading-screen no-toolbar></hass-loading-screen>`;
     }
 
@@ -72,43 +73,47 @@ class HcCast extends LitElement {
         ${error
           ? html` <div class="card-content">${error}</div> `
           : !this.castManager.status
-          ? html`
-              <p class="center-item">
-                <mwc-button raised @click=${this._handleLaunch}>
-                  <ha-svg-icon .path=${mdiCast}></ha-svg-icon>
-                  Start Casting
-                </mwc-button>
-              </p>
-            `
-          : html`
-              <div class="section-header">PICK A VIEW</div>
-              <paper-listbox
-                attr-for-selected="data-path"
-                .selected=${this.castManager.status.lovelacePath || ""}
-              >
-                ${(this.lovelaceConfig
-                  ? this.lovelaceConfig.views
-                  : [generateDefaultViewConfig({}, {}, {}, {}, () => "")]
-                ).map(
-                  (view, idx) => html`
-                    <paper-icon-item
-                      @click=${this._handlePickView}
-                      data-path=${view.path || idx}
-                    >
-                      ${view.icon
-                        ? html`
-                            <ha-icon
-                              .icon=${view.icon}
+            ? html`
+                <p class="center-item">
+                  <mwc-button raised @click=${this._handleLaunch}>
+                    <ha-svg-icon .path=${mdiCast}></ha-svg-icon>
+                    Start Casting
+                  </mwc-button>
+                </p>
+              `
+            : html`
+                <div class="section-header">PICK A VIEW</div>
+                <mwc-list @action=${this._handlePickView} activatable>
+                  ${(
+                    this.lovelaceViews ?? [
+                      generateDefaultViewConfig({}, {}, {}, {}, () => ""),
+                    ]
+                  ).map(
+                    (view, idx) =>
+                      html`<ha-list-item
+                        graphic="avatar"
+                        .activated=${this.castManager.status?.lovelacePath ===
+                        (view.path ?? idx)}
+                        .selected=${this.castManager.status?.lovelacePath ===
+                        (view.path ?? idx)}
+                      >
+                        ${view.title || view.path || "Unnamed view"}
+                        ${view.icon
+                          ? html`
+                              <ha-icon
+                                .icon=${view.icon}
+                                slot="graphic"
+                              ></ha-icon>
+                            `
+                          : html`<ha-svg-icon
                               slot="item-icon"
-                            ></ha-icon>
-                          `
-                        : ""}
-                      ${view.title || view.path}
-                    </paper-icon-item>
-                  `
-                )}
-              </paper-listbox>
-            `}
+                              .path=${mdiViewDashboard}
+                            ></ha-svg-icon>`}</ha-list-item
+                      > `
+                  )}</mwc-list
+                >
+              `}
+
         <div class="card-actions">
           ${this.castManager.status
             ? html`
@@ -136,11 +141,15 @@ class HcCast extends LitElement {
     llColl.refresh().then(
       () => {
         llColl.subscribe((config) => {
-          this.lovelaceConfig = config;
+          if (isStrategyDashboard(config)) {
+            this.lovelaceViews = null;
+          } else {
+            this.lovelaceViews = config.views;
+          }
         });
       },
       async () => {
-        this.lovelaceConfig = null;
+        this.lovelaceViews = null;
       }
     );
 
@@ -159,9 +168,7 @@ class HcCast extends LitElement {
     toggleAttribute(
       this,
       "hide-icons",
-      this.lovelaceConfig
-        ? !this.lovelaceConfig.views.some((view) => view.icon)
-        : true
+      this.lovelaceViews ? !this.lovelaceViews.some((view) => view.icon) : true
     );
   }
 
@@ -178,8 +185,8 @@ class HcCast extends LitElement {
     this.castManager.requestSession();
   }
 
-  private async _handlePickView(ev: Event) {
-    const path = (ev.currentTarget as any).getAttribute("data-path");
+  private async _handlePickView(ev: CustomEvent<ActionDetail>) {
+    const path = this.lovelaceViews![ev.detail.index].path ?? ev.detail.index;
     await ensureConnectedCastSession(this.castManager!, this.auth!);
     castSendShowLovelaceView(this.castManager, this.auth.data.hassUrl, path);
   }
@@ -237,28 +244,19 @@ class HcCast extends LitElement {
 
       mwc-button ha-svg-icon {
         margin-right: 8px;
+        margin-inline-end: 8px;
+        margin-inline-start: initial;
         height: 18px;
       }
 
-      paper-listbox {
-        padding-top: 0;
-      }
-
-      paper-listbox ha-icon {
+      ha-list-item ha-icon,
+      ha-list-item ha-svg-icon {
         padding: 12px;
         color: var(--secondary-text-color);
       }
 
-      paper-icon-item {
-        cursor: pointer;
-      }
-
-      paper-icon-item[disabled] {
-        cursor: initial;
-      }
-
-      :host([hide-icons]) paper-icon-item {
-        --paper-item-icon-width: 0px;
+      :host([hide-icons]) ha-icon {
+        display: none;
       }
 
       .spacer {

cast/src/launcher/layout/hc-connect.ts

@@ -1,6 +1,5 @@
 import "@material/mwc-button";
 import { mdiCastConnected, mdiCast } from "@mdi/js";
-import "@polymer/paper-input/paper-input";
 import {
   Auth,
   Connection,
@@ -24,6 +23,7 @@ import "../../../../src/components/ha-svg-icon";
 import "../../../../src/layouts/hass-loading-screen";
 import { registerServiceWorker } from "../../../../src/util/register-service-worker";
 import "./hc-layout";
+import "../../../../src/components/ha-textfield";
 
 const seeFAQ = (qid) => html`
   See <a href="./faq.html${qid ? `#${qid}` : ""}">the FAQ</a> for more
@@ -33,13 +33,13 @@ const translateErr = (err) =>
   err === ERR_CANNOT_CONNECT
     ? "Unable to connect"
     : err === ERR_HASS_HOST_REQUIRED
-    ? "Please enter a Home Assistant URL."
-    : err === ERR_INVALID_HTTPS_TO_HTTP
-    ? html`
-        Cannot connect to Home Assistant instances over "http://".
-        ${seeFAQ("https")}
-      `
-    : `Unknown error (${err}).`;
+      ? "Please enter a Home Assistant URL."
+      : err === ERR_INVALID_HTTPS_TO_HTTP
+        ? html`
+            Cannot connect to Home Assistant instances over "http://".
+            ${seeFAQ("https")}
+          `
+        : `Unknown error (${err}).`;
 
 const INTRO = html`
   <p>
@@ -116,13 +116,11 @@ export class HcConnect extends LitElement {
               To get started, enter your Home Assistant URL and click authorize.
               If you want a preview instead, click the show demo button.
             </p>
-            <p>
-              <paper-input
-                label="Home Assistant URL"
-                placeholder="https://abcdefghijklmnop.ui.nabu.casa"
-                @keydown=${this._handleInputKeyDown}
-              ></paper-input>
-            </p>
+            <ha-textfield
+              label="Home Assistant URL"
+              placeholder="https://abcdefghijklmnop.ui.nabu.casa"
+              @keydown=${this._handleInputKeyDown}
+            ></ha-textfield>
             ${this.error ? html` <p class="error">${this.error}</p> ` : ""}
           </div>
           <div class="card-actions">
@@ -190,13 +188,13 @@ export class HcConnect extends LitElement {
 
   private _handleInputKeyDown(ev: KeyboardEvent) {
     // Handle pressing enter.
-    if (ev.keyCode === 13) {
+    if (ev.key === "Enter") {
       this._handleConnect();
     }
   }
 
   private async _handleConnect() {
-    const inputEl = this.shadowRoot!.querySelector("paper-input")!;
+    const inputEl = this.shadowRoot!.querySelector("ha-textfield")!;
     const value = inputEl.value || "";
     this.error = undefined;
 
@@ -315,6 +313,10 @@ export class HcConnect extends LitElement {
       .spacer {
         flex: 1;
       }
+
+      ha-textfield {
+        width: 100%;
+      }
     `;
   }
 }

cast/src/launcher/layout/hc-layout.ts

@@ -10,13 +10,13 @@ import "../../../../src/components/ha-card";
 
 @customElement("hc-layout")
 class HcLayout extends LitElement {
-  @property() public subtitle?: string | undefined;
+  @property() public subtitle?: string;
 
-  @property() public auth?: Auth;
+  @property({ attribute: false }) public auth?: Auth;
 
-  @property() public connection?: Connection;
+  @property({ attribute: false }) public connection?: Connection;
 
-  @property() public user?: HassUser;
+  @property({ attribute: false }) public user?: HassUser;
 
   protected render(): TemplateResult {
     return html`

cast/src/media/entrypoint.ts

@@ -1,19 +1,21 @@
-const castContext = cast.framework.CastReceiverContext.getInstance();
+import { framework } from "../receiver/cast_framework";
+
+const castContext = framework.CastReceiverContext.getInstance();
 
 const playerManager = castContext.getPlayerManager();
 
 playerManager.setMessageInterceptor(
-  cast.framework.messages.MessageType.LOAD,
+  framework.messages.MessageType.LOAD,
   (loadRequestData) => {
     const media = loadRequestData.media;
     // Special handling if it came from Google Assistant
     if (media.entity) {
       media.contentId = media.entity;
-      media.streamType = cast.framework.messages.StreamType.LIVE;
+      media.streamType = framework.messages.StreamType.LIVE;
       media.contentType = "application/vnd.apple.mpegurl";
       // @ts-ignore
       media.hlsVideoSegmentFormat =
-        cast.framework.messages.HlsVideoSegmentFormat.FMP4;
+        framework.messages.HlsVideoSegmentFormat.FMP4;
     }
     return loadRequestData;
   }

cast/src/receiver/cast_context.ts

@@ -1,2 +1,3 @@
-/* eslint-disable no-undef */
-export const castContext = cast.framework.CastReceiverContext.getInstance();
+import { framework } from "./cast_framework";
+
+export const castContext = framework.CastReceiverContext.getInstance();

cast/src/receiver/cast_framework.ts

@@ -0,0 +1,3 @@
+import type { cast as ReceiverCast } from "chromecast-caf-receiver";
+
+export const framework = (cast as unknown as typeof ReceiverCast).framework;

cast/src/receiver/demo/cast-demo-lovelace.ts

@@ -1,7 +1,5 @@
-import {
-  LovelaceCardConfig,
-  LovelaceConfig,
-} from "../../../../src/data/lovelace";
+import { LovelaceCardConfig } from "../../../../src/data/lovelace/config/card";
+import { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
 import { castContext } from "../cast_context";
 
 export const castDemoLovelace: () => LovelaceConfig = () => {

cast/src/receiver/entrypoint.ts

@@ -1,4 +1,4 @@
-/* eslint-disable no-undef */
+import { framework } from "./cast_framework";
 import { CAST_NS } from "../../../src/cast/const";
 import { HassMessage } from "../../../src/cast/receiver_messages";
 import "../../../src/resources/custom-card-support";
@@ -34,14 +34,14 @@ const setTouchControlsVisibility = (visible: boolean) => {
 let timeOut: number | undefined;
 
 const playDummyMedia = (viewTitle?: string) => {
-  const loadRequestData = new cast.framework.messages.LoadRequestData();
+  const loadRequestData = new framework.messages.LoadRequestData();
   loadRequestData.autoplay = true;
-  loadRequestData.media = new cast.framework.messages.MediaInformation();
+  loadRequestData.media = new framework.messages.MediaInformation();
   loadRequestData.media.contentId =
     "https://cast.home-assistant.io/images/google-nest-hub.png";
   loadRequestData.media.contentType = "image/jpeg";
-  loadRequestData.media.streamType = cast.framework.messages.StreamType.NONE;
-  const metadata = new cast.framework.messages.GenericMediaMetadata();
+  loadRequestData.media.streamType = framework.messages.StreamType.NONE;
+  const metadata = new framework.messages.GenericMediaMetadata();
   metadata.title = viewTitle;
   loadRequestData.media.metadata = metadata;
 
@@ -86,10 +86,10 @@ const showMediaPlayer = () => {
   }
 };
 
-const options = new cast.framework.CastReceiverOptions();
+const options = new framework.CastReceiverOptions();
 options.disableIdleTimeout = true;
 options.customNamespaces = {
-  [CAST_NS]: cast.framework.system.MessageType.JSON,
+  [CAST_NS]: framework.system.MessageType.JSON,
 };
 
 castContext.addCustomMessageListener(
@@ -98,8 +98,7 @@ castContext.addCustomMessageListener(
   (ev: ReceivedMessage<HassMessage>) => {
     // We received a show Lovelace command, stop media from playing, hide media player and show Lovelace controller
     if (
-      playerManager.getPlayerState() !==
-      cast.framework.messages.PlayerState.IDLE
+      playerManager.getPlayerState() !== framework.messages.PlayerState.IDLE
     ) {
       playerManager.stop();
     } else {
@@ -114,7 +113,7 @@ castContext.addCustomMessageListener(
 const playerManager = castContext.getPlayerManager();
 
 playerManager.setMessageInterceptor(
-  cast.framework.messages.MessageType.LOAD,
+  framework.messages.MessageType.LOAD,
   (loadRequestData) => {
     if (
       loadRequestData.media.contentId ===
@@ -128,25 +127,24 @@ playerManager.setMessageInterceptor(
     // Special handling if it came from Google Assistant
     if (media.entity) {
       media.contentId = media.entity;
-      media.streamType = cast.framework.messages.StreamType.LIVE;
+      media.streamType = framework.messages.StreamType.LIVE;
       media.contentType = "application/vnd.apple.mpegurl";
       // @ts-ignore
       media.hlsVideoSegmentFormat =
-        cast.framework.messages.HlsVideoSegmentFormat.FMP4;
+        framework.messages.HlsVideoSegmentFormat.FMP4;
     }
     return loadRequestData;
   }
 );
 
 playerManager.addEventListener(
-  cast.framework.events.EventType.MEDIA_STATUS,
+  framework.events.EventType.MEDIA_STATUS,
   (event) => {
     if (
-      event.mediaStatus?.playerState ===
-        cast.framework.messages.PlayerState.IDLE &&
+      event.mediaStatus?.playerState === framework.messages.PlayerState.IDLE &&
       event.mediaStatus?.idleReason &&
       event.mediaStatus?.idleReason !==
-        cast.framework.messages.IdleReason.INTERRUPTED
+        framework.messages.IdleReason.INTERRUPTED
     ) {
       // media finished or stopped, return to default Lovelace
       showLovelaceController();

cast/src/receiver/layout/hc-demo.ts

@@ -1,7 +1,7 @@
 import { html, nothing } from "lit";
 import { customElement, property, state } from "lit/decorators";
 import { mockHistory } from "../../../../demo/src/stubs/history";
-import { LovelaceConfig } from "../../../../src/data/lovelace";
+import { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
 import {
   MockHomeAssistant,
   provideHass,

cast/src/receiver/layout/hc-launch-screen.ts

@@ -12,8 +12,8 @@ class HcLaunchScreen extends LitElement {
     return html`
       <div class="container">
         <img
-          alt="Home Assistant logo on left, Nabu Casa logo on right, and red heart in center"
-          src="https://www.home-assistant.io/images/blog/2018-09-thinking-big/social.png"
+          alt="Nabu Casa logo on left, Home Assistant logo on right, and red heart in center"
+          src="https://cast.home-assistant.io/images/nabu-loves-hass.png"
         />
         <div class="status">
           ${this.hass ? "Connected" : "Not Connected"}
@@ -28,23 +28,23 @@ class HcLaunchScreen extends LitElement {
       :host {
         display: block;
         height: 100vh;
-        padding-top: 64px;
-        background-color: white;
+        background-color: #f2f4f9;
         font-size: 24px;
       }
       .container {
         display: flex;
         flex-direction: column;
         text-align: center;
+        align-items: center;
+        height: 100%;
+        justify-content: space-evenly;
       }
       img {
-        width: 717px;
-        height: 376px;
-        display: block;
-        margin: 0 auto;
+        max-width: 80%;
+        object-fit: cover;
       }
       .status {
-        padding-right: 54px;
+        color: #1d2126;
       }
     `;
   }

cast/src/receiver/layout/hc-lovelace.ts

@@ -1,7 +1,8 @@
 import { css, CSSResultGroup, html, LitElement, TemplateResult } from "lit";
 import { customElement, property, query } from "lit/decorators";
 import { fireEvent } from "../../../../src/common/dom/fire_event";
-import { LovelaceConfig } from "../../../../src/data/lovelace";
+import { LovelaceConfig } from "../../../../src/data/lovelace/config/types";
+import { getPanelTitleFromUrlPath } from "../../../../src/data/panel";
 import { Lovelace } from "../../../../src/panels/lovelace/types";
 import "../../../../src/panels/lovelace/views/hui-view";
 import { HomeAssistant } from "../../../../src/types";
@@ -14,9 +15,10 @@ import "./hc-launch-screen";
 class HcLovelace extends LitElement {
   @property({ attribute: false }) public hass!: HomeAssistant;
 
-  @property({ attribute: false }) public lovelaceConfig!: LovelaceConfig;
+  @property({ attribute: false })
+  public lovelaceConfig!: LovelaceConfig;
 
-  @property() public viewPath?: string | number;
+  @property() public viewPath?: string | number | null;
 
   @property() public urlPath: string | null = null;
 
@@ -60,7 +62,12 @@ class HcLovelace extends LitElement {
       const index = this._viewIndex;
 
       if (index !== undefined) {
-        const dashboardTitle = this.lovelaceConfig.title || this.urlPath;
+        const title = getPanelTitleFromUrlPath(
+          this.hass,
+          this.urlPath || "lovelace"
+        );
+
+        const dashboardTitle = title || this.urlPath;
 
         const viewTitle =
           this.lovelaceConfig.views[index].title ||
@@ -79,10 +86,17 @@ class HcLovelace extends LitElement {
           this.lovelaceConfig.views[index].background ||
           this.lovelaceConfig.background;
 
-        if (configBackground) {
+        const backgroundStyle =
+          typeof configBackground === "string"
+            ? configBackground
+            : configBackground?.image
+              ? `center / cover no-repeat url('${configBackground.image}')`
+              : undefined;
+
+        if (backgroundStyle) {
           this._huiView!.style.setProperty(
             "--lovelace-background",
-            configBackground
+            backgroundStyle
           );
         } else {
           this._huiView!.style.removeProperty("--lovelace-background");
@@ -92,6 +106,9 @@ class HcLovelace extends LitElement {
   }
 
   private get _viewIndex() {
+    if (this.viewPath === null) {
+      return 0;
+    }
     const selectedView = this.viewPath;
     const selectedViewInt = parseInt(selectedView as string, 10);
     for (let i = 0; i < this.lovelaceConfig.views.length; i++) {

cast/src/receiver/layout/hc-main.ts

@@ -21,16 +21,28 @@ import {
 import { atLeastVersion } from "../../../../src/common/config/version";
 import { isNavigationClick } from "../../../../src/common/dom/is-navigation-click";
 import {
-  fetchResources,
   getLegacyLovelaceCollection,
   getLovelaceCollection,
+} from "../../../../src/data/lovelace";
+import {
+  isStrategyDashboard,
   LegacyLovelaceConfig,
   LovelaceConfig,
-} from "../../../../src/data/lovelace";
+  LovelaceDashboardStrategyConfig,
+} from "../../../../src/data/lovelace/config/types";
+import { fetchResources } from "../../../../src/data/lovelace/resource";
 import { loadLovelaceResources } from "../../../../src/panels/lovelace/common/load-resources";
 import { HassElement } from "../../../../src/state/hass-element";
 import { castContext } from "../cast_context";
 import "./hc-launch-screen";
+import { getPanelTitleFromUrlPath } from "../../../../src/data/panel";
+import { checkLovelaceConfig } from "../../../../src/panels/lovelace/common/check-lovelace-config";
+
+const DEFAULT_CONFIG: LovelaceDashboardStrategyConfig = {
+  strategy: {
+    type: "original-states",
+  },
+};
 
 let resourcesLoaded = false;
 @customElement("hc-main")
@@ -41,10 +53,10 @@ export class HcMain extends HassElement {
 
   @state() private _lovelacePath: string | number | null = null;
 
-  @state() private _error?: string;
-
   @state() private _urlPath?: string | null;
 
+  @state() private _error?: string;
+
   private _hassUUID?: string;
 
   private _unsubLovelace?: UnsubscribeFunc;
@@ -71,7 +83,7 @@ export class HcMain extends HassElement {
 
     if (
       !this._lovelaceConfig ||
-      this._lovelacePath === null ||
+      this._urlPath === undefined ||
       // Guard against part of HA not being loaded yet.
       !this.hass ||
       !this.hass.states ||
@@ -89,16 +101,18 @@ export class HcMain extends HassElement {
       <hc-lovelace
         .hass=${this.hass}
         .lovelaceConfig=${this._lovelaceConfig}
-        .viewPath=${this._lovelacePath}
         .urlPath=${this._urlPath}
-        @config-refresh=${this._generateLovelaceConfig}
+        .viewPath=${this._lovelacePath}
+        @config-refresh=${this._generateDefaultLovelaceConfig}
       ></hc-lovelace>
     `;
   }
 
   protected firstUpdated(changedProps) {
     super.firstUpdated(changedProps);
-    import("../second-load");
+    import("./hc-lovelace");
+    import("../../../../src/resources/ha-style");
+
     window.addEventListener("location-changed", () => {
       const panelPath = `/${this._urlPath || "lovelace"}/`;
       if (location.pathname.startsWith(panelPath)) {
@@ -193,7 +207,6 @@ export class HcMain extends HassElement {
           expires_in: 0,
         }),
       });
-      this._hassUUID = msg.hassUUID;
     } catch (err: any) {
       const errorMessage = this._getErrorMessage(err);
       this._error = errorMessage;
@@ -213,6 +226,17 @@ export class HcMain extends HassElement {
       this.hass.connection.close();
     }
     this.initializeHass(auth, connection);
+    if (this._hassUUID !== msg.hassUUID) {
+      this._hassUUID = msg.hassUUID;
+      this._lovelaceConfig = undefined;
+      this._urlPath = undefined;
+      this._lovelacePath = null;
+      if (this._unsubLovelace) {
+        this._unsubLovelace();
+        this._unsubLovelace = undefined;
+      }
+      resourcesLoaded = false;
+    }
     this._error = undefined;
     this._sendStatus();
   }
@@ -221,7 +245,7 @@ export class HcMain extends HassElement {
     this._showDemo = false;
     // We should not get this command before we are connected.
     // Means a client got out of sync. Let's send status to them.
-    if (!this.hass) {
+    if (!this.hass?.connected) {
       this._sendStatus(msg.senderId!);
       this._error = "Cannot show Lovelace because we're not connected.";
       this._sendError(
@@ -248,7 +272,7 @@ export class HcMain extends HassElement {
     }
 
     this._error = undefined;
-    if (msg.urlPath === "lovelace") {
+    if (msg.urlPath === "lovelace" || msg.urlPath === undefined) {
       msg.urlPath = null;
     }
     this._lovelacePath = msg.viewPath;
@@ -258,13 +282,12 @@ export class HcMain extends HassElement {
           {
             strategy: {
               type: "energy",
-              options: { show_date_selection: true },
             },
           },
         ],
       };
       this._urlPath = "energy";
-      this._lovelacePath = 0;
+      this._lovelacePath = null;
       this._sendStatus();
       return;
     }
@@ -273,6 +296,7 @@ export class HcMain extends HassElement {
       this._lovelaceConfig = undefined;
       if (this._unsubLovelace) {
         this._unsubLovelace();
+        this._unsubLovelace = undefined;
       }
       const llColl = atLeastVersion(this.hass.connection.haVersion, 0, 107)
         ? getLovelaceCollection(this.hass.connection, msg.urlPath)
@@ -281,9 +305,20 @@ export class HcMain extends HassElement {
       // configuration.
       try {
         await llColl.refresh();
-        this._unsubLovelace = llColl.subscribe((lovelaceConfig) =>
-          this._handleNewLovelaceConfig(lovelaceConfig)
-        );
+        this._unsubLovelace = llColl.subscribe(async (rawConfig) => {
+          if (isStrategyDashboard(rawConfig)) {
+            const { generateLovelaceDashboardStrategy } = await import(
+              "../../../../src/panels/lovelace/strategies/get-strategy"
+            );
+            const config = await generateLovelaceDashboardStrategy(
+              rawConfig.strategy,
+              this.hass!
+            );
+            this._handleNewLovelaceConfig(config);
+          } else {
+            this._handleNewLovelaceConfig(rawConfig);
+          }
+        });
       } catch (err: any) {
         if (
           atLeastVersion(this.hass.connection.haVersion, 0, 107) &&
@@ -297,7 +332,7 @@ export class HcMain extends HassElement {
         }
         // Generate a Lovelace config.
         this._unsubLovelace = () => undefined;
-        await this._generateLovelaceConfig();
+        await this._generateDefaultLovelaceConfig();
       }
     }
     if (!resourcesLoaded) {
@@ -306,31 +341,34 @@ export class HcMain extends HassElement {
         ? await fetchResources(this.hass!.connection)
         : (this._lovelaceConfig as LegacyLovelaceConfig).resources;
       if (resources) {
-        loadLovelaceResources(resources, this.hass!.auth.data.hassUrl);
+        loadLovelaceResources(resources, this.hass!);
       }
     }
 
     this._sendStatus();
   }
 
-  private async _generateLovelaceConfig() {
+  private async _generateDefaultLovelaceConfig() {
     const { generateLovelaceDashboardStrategy } = await import(
       "../../../../src/panels/lovelace/strategies/get-strategy"
     );
     this._handleNewLovelaceConfig(
       await generateLovelaceDashboardStrategy(
-        {
-          hass: this.hass!,
-          narrow: false,
-        },
-        "original-states"
+        DEFAULT_CONFIG.strategy,
+        this.hass!
       )
     );
   }
 
   private _handleNewLovelaceConfig(lovelaceConfig: LovelaceConfig) {
-    castContext.setApplicationState(lovelaceConfig.title || "");
-    this._lovelaceConfig = lovelaceConfig;
+    const title = getPanelTitleFromUrlPath(
+      this.hass!,
+      this._urlPath || "lovelace"
+    );
+    castContext.setApplicationState(title || "");
+    this._lovelaceConfig = checkLovelaceConfig(
+      lovelaceConfig
+    ) as LovelaceConfig;
   }
 
   private _handleShowDemo(_msg: ShowDemoMessage) {

cast/src/receiver/second-load.ts

@@ -1,3 +0,0 @@
-import "../../../src/resources/ha-style";
-import "../../../src/resources/roboto";
-import "./layout/hc-lovelace";

demo/public/manifest.json

@@ -8,25 +8,67 @@
       "src": "/static/icons/favicon-192x192.png",
       "sizes": "192x192",
       "type": "image/png",
-      "purpose": "maskable any"
+      "purpose": "any"
     },
     {
       "src": "/static/icons/favicon-384x384.png",
       "sizes": "384x384",
       "type": "image/png",
-      "purpose": "maskable any"
+      "purpose": "any"
     },
     {
       "src": "/static/icons/favicon-512x512.png",
       "sizes": "512x512",
       "type": "image/png",
-      "purpose": "maskable any"
+      "purpose": "any"
     },
     {
       "src": "/static/icons/favicon-1024x1024.png",
       "sizes": "1024x1024",
       "type": "image/png",
-      "purpose": "maskable any"
+      "purpose": "any"
+    },
+    {
+      "src": "/static/icons/maskable_icon-48x48.png",
+      "sizes": "48x48",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-72x72.png",
+      "sizes": "72x72",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-96x96.png",
+      "sizes": "96x96",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-128x128.png",
+      "sizes": "128x128",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-384x384.png",
+      "sizes": "384x384",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/static/icons/maskable_icon-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
     }
   ],
   "lang": "en-US",

demo/public/service_worker.js

@@ -1,3 +0,0 @@
-self.addEventListener("fetch", function(event) {
-  event.respondWith(fetch(event.request));
-});

demo/public/sw-legacy.js

@@ -0,0 +1,5 @@
+"use strict";
+
+self.addEventListener("fetch", (event) => {
+  event.respondWith(fetch(event.request));
+});