Fix for displaying time left for values > 24 hour

* Fix mwc-list/menu actions

Fix double actions when using request-selected

* Update ha-button-menu.ts

* Automation menu styling

* Update src/panels/lovelace/hui-root.ts

Co-authored-by: Zack Arnett <arnett.zackary@gmail.com>

* Move

Co-authored-by: Zack Arnett <arnett.zackary@gmail.com>

.dockerignore

@@ -1,4 +0,0 @@
-node_modules
-hass_frontend
-hass_frontend_es5
-.git

.eslintrc-hound.json

@@ -1,80 +0,0 @@
-{
-  "extends": ["airbnb-base", "prettier"],
-  "parserOptions": {
-    "ecmaVersion": "2020",
-    "ecmaFeatures": {
-      "jsx": true,
-      "modules": true
-    }
-  },
-  "settings": {
-    "react": {
-      "pragma": "h",
-      "version": "15.0"
-    },
-    "import/resolver": {
-      "webpack": {
-        "config": "webpack.config.js"
-      }
-    }
-  },
-  "globals": {
-    "__DEV__": false,
-    "__DEMO__": false,
-    "__BUILD__": false,
-    "__VERSION__": false,
-    "__STATIC_PATH__": false,
-    "Polymer": true,
-    "webkitSpeechRecognition": false,
-    "ResizeObserver": false
-  },
-  "env": {
-    "browser": true,
-    "mocha": true
-  },
-  "rules": {
-    "class-methods-use-this": 0,
-    "new-cap": 0,
-    "prefer-template": 0,
-    "object-shorthand": 0,
-    "func-names": 0,
-    "prefer-arrow-callback": 0,
-    "no-underscore-dangle": 0,
-    "no-var": 0,
-    "strict": 0,
-    "prefer-spread": 0,
-    "no-plusplus": 0,
-    "no-bitwise": 0,
-    "comma-dangle": 0,
-    "vars-on-top": 0,
-    "no-continue": 0,
-    "no-param-reassign": 0,
-    "no-multi-assign": 0,
-    "radix": 0,
-    "no-alert": 0,
-    "no-return-await": 0,
-    "prefer-destructuring": 0,
-    "no-restricted-globals": [2, "event"],
-    "prefer-promise-reject-errors": 0,
-    "import/prefer-default-export": 0,
-    "import/no-unresolved": 0,
-    "import/extensions": [2, "ignorePackages"],
-    "object-curly-newline": 0,
-    "default-case": 0,
-    "react/jsx-no-bind": [2, { "ignoreRefs": true }],
-    "react/jsx-no-duplicate-props": 2,
-    "react/self-closing-comp": 2,
-    "react/prefer-es6-class": 2,
-    "react/no-string-refs": 2,
-    "react/require-render-return": 2,
-    "react/no-find-dom-node": 2,
-    "react/no-is-mounted": 2,
-    "react/jsx-no-comment-textnodes": 2,
-    "react/jsx-no-undef": 2,
-    "react/jsx-uses-react": 2,
-    "react/jsx-uses-vars": 2,
-    "no-restricted-syntax": [0, "ForOfStatement"],
-    "prettier/prettier": "error"
-  },
-  "plugins": ["react", "prettier"]
-}

.eslintrc.json

@@ -1,12 +1,88 @@
 {
-  "extends": "./.eslintrc-hound.json",
-  "plugins": ["react"],
+  "extends": [
+    "plugin:@typescript-eslint/recommended",
+    "airbnb-typescript/base",
+    "plugin:wc/recommended",
+    "plugin:lit/recommended",
+    "prettier",
+    "prettier/@typescript-eslint"
+  ],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "ecmaVersion": 2020,
+    "ecmaFeatures": {
+      "modules": true
+    },
+    "sourceType": "module",
+    "project": "./tsconfig.json"
+  },
+  "settings": {
+    "import/resolver": {
+      "webpack": {
+        "config": "./webpack.config.js"
+      }
+    }
+  },
+  "globals": {
+    "__DEV__": false,
+    "__DEMO__": false,
+    "__BUILD__": false,
+    "__VERSION__": false,
+    "__STATIC_PATH__": false,
+    "Polymer": true,
+    "webkitSpeechRecognition": false,
+    "ResizeObserver": false
+  },
   "env": {
-    "browser": true
+    "browser": true,
+    "es6": true
   },
   "rules": {
-    "import/no-unresolved": 2,
-    "linebreak-style": 0,
-    "implicit-arrow-linebreak": 0
-  }
+    "class-methods-use-this": 0,
+    "new-cap": 0,
+    "prefer-template": 0,
+    "object-shorthand": 0,
+    "func-names": 0,
+    "prefer-arrow-callback": 0,
+    "no-underscore-dangle": 0,
+    "no-var": 0,
+    "strict": 0,
+    "prefer-spread": 0,
+    "no-plusplus": 0,
+    "no-bitwise": 0,
+    "comma-dangle": 0,
+    "vars-on-top": 0,
+    "no-continue": 0,
+    "no-param-reassign": 0,
+    "no-multi-assign": 0,
+    "radix": 0,
+    "no-alert": 0,
+    "no-return-await": 0,
+    "no-nested-ternary": 0,
+    "prefer-destructuring": 0,
+    "no-restricted-globals": [2, "event"],
+    "prefer-promise-reject-errors": 0,
+    "import/order": 0,
+    "import/prefer-default-export": 0,
+    "import/no-unresolved": 0,
+    "import/no-cycle": 0,
+    "import/extensions": [
+      2,
+      "ignorePackages",
+      { "ts": "never", "js": "never" }
+    ],
+    "no-restricted-syntax": ["error", "LabeledStatement", "WithStatement"],
+    "object-curly-newline": 0,
+    "default-case": 0,
+    "wc/no-self-class": 0,
+    "@typescript-eslint/camelcase": 0,
+    "@typescript-eslint/ban-ts-ignore": 0,
+    "@typescript-eslint/no-use-before-define": 0,
+    "@typescript-eslint/no-non-null-assertion": 0,
+    "@typescript-eslint/no-explicit-any": 0,
+    "@typescript-eslint/no-unused-vars": 0,
+    "@typescript-eslint/explicit-function-return-type": 0
+  },
+  "plugins": ["disable", "import", "lit", "prettier", "@typescript-eslint"],
+  "processor": "disable/disable"
 }

.github/ISSUE_TEMPLATE/BUG_REPORT.md

@@ -51,7 +51,7 @@ DO NOT DELETE ANY TEXT from this template! Otherwise, your issue may be closed w
 <!--
   Provide details about the versions you are using, which helps us reproducing
   and finding the issue quicker. Version information is found in the
-  Home Assistant frontend: Developer tools -> Info.
+  Home Assistant frontend: Configuration -> Info.
 
   Browser version and operating system is important! Please try to replicate
   your issue in a different browser and be sure to include your findings.
@@ -62,6 +62,18 @@ DO NOT DELETE ANY TEXT from this template! Otherwise, your issue may be closed w
 - Browser and browser version:
 - Operating system:
 
+## State of relevant entities
+
+<!--
+  If your issue is about how an entity is shown in the UI, please add the state
+  and attributes for all situations with a screenshot of the UI.
+  You can find this information at `/developer-tools/state`
+-->
+
+```yaml
+
+```
+
 ## Problem-relevant configuration
 
 <!--

.github/ISSUE_TEMPLATE/FEATURE_REQUEST.md

@@ -3,23 +3,24 @@ name: Request a feature for the UI, Frontend or Lovelace
 about: Request an new feature for the Home Assistant frontend.
 labels: feature request
 ---
+
 <!--
   DO NOT DELETE ANY TEXT from this template!
   Otherwise, your request may be closed without comment.
 -->
+
 ## The request
-<!-- 
+
+<!--
   Describe to our maintainers, the feature you would like to be added.
   Please be clear and concise and, if possible, provide a screenshot or mockup.
 -->
 
-
 ## The alternatives
+
 <!--
   Are you currently using, or have you considered alternatives?
   If so, could you please describe those?
 -->
 
-
 ## Additional information
-

.github/PULL_REQUEST_TEMPLATE.md

@@ -2,7 +2,9 @@
   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.
@@ -11,20 +13,20 @@
   Note: Remove this section if this PR is NOT a breaking 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
   or resolves a feature request, be sure to link to that issue in the
   additional information section.
 -->
 
-
 ## Type of change
+
 <!--
   What type of change does your PR introduce to the Home Assistant frontend?
-  NOTE: Please, check only 1! box! 
+  NOTE: Please, check only 1! box!
   If your PR requires multiple boxes to be checked, you'll most likely need to
   split it into multiple PRs. This makes things easier and faster to code review.
 -->
@@ -36,6 +38,7 @@
 - [ ] 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.
@@ -46,16 +49,18 @@
 ```
 
 ## Additional information
+
 <!--
   Details are important, and help maintainers processing your PR.
   Please be sure to fill out additional details, if applicable.
 -->
 
 - This PR fixes or closes issue: fixes #
-- This PR is related to issue: 
-- Link to documentation pull request: 
+- This PR is related to issue:
+- 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.
@@ -74,4 +79,5 @@ If user exposed functionality or configuration variables are added/changed:
 <!--
   Thank you for contributing <3
 -->
+
 [docs-repository]: https://github.com/home-assistant/home-assistant.io

.github/lock.yml

@@ -24,4 +24,4 @@ only: pulls
 
 # Optionally, specify configuration settings just for `issues` or `pulls`
 issues:
-   daysUntilLock: 30
+  daysUntilLock: 30

.github/workflows/ci.yaml

@@ -34,14 +34,10 @@ jobs:
         run: yarn install
         env:
           CI: true
-      - name: Build icons
-        run: ./node_modules/.bin/gulp gen-icons-hassio gen-icons-mdi gen-icons-app
-      - name: Build translations
-        run: ./node_modules/.bin/gulp build-translations
+      - name: Build resources
+        run: ./node_modules/.bin/gulp gen-icons-json build-translations gather-gallery-demos
       - name: Run eslint
-        run: ./node_modules/.bin/eslint src hassio/src gallery/src
-      - name: Run tslint
-        run: ./node_modules/.bin/tslint 'src/**/*.ts' 'hassio/src/**/*.ts' 'gallery/src/**/*.ts' 'cast/src/**/*.ts' 'test-mocha/**/*.ts'
+        run: ./node_modules/.bin/eslint '{**/src,src}/**/*.{js,ts,html}' --ignore-path .gitignore
       - name: Run tsc
         run: ./node_modules/.bin/tsc
   test:
@@ -96,7 +92,7 @@ jobs:
       - name: Build Application
         run: ./node_modules/.bin/gulp build-app
         env:
-          TRAVIS: "true"
+          IS_TEST: "true"
   supervisor:
     runs-on: ubuntu-latest
     needs: [lint, test]
@@ -124,4 +120,4 @@ jobs:
       - name: Build Application
         run: ./node_modules/.bin/gulp build-hassio
         env:
-          TRAVIS: "true"
+          IS_TEST: "true"

.github/workflows/release-drafter.yaml

@@ -0,0 +1,14 @@
+name: Release Drafter
+
+on:
+  push:
+    branches:
+      - dev
+
+jobs:
+  update_release_draft:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: release-drafter/release-drafter@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -5,7 +5,6 @@ npm-debug.log
 .DS_Store
 hass_frontend/*
 .reify-cache
-demo/hademo-icons.html
 
 # Python stuff
 *.py[cod]
@@ -25,7 +24,7 @@ dist
 .vscode/*
 !.vscode/extensions.json
 
-# Cast dev settings 
+# Cast dev settings
 src/cast/dev_const.ts
 
 # Secrets

.prettierignore

@@ -0,0 +1,10 @@
+build
+build-translations/*
+translations/*
+node_modules/*
+hass_frontend/*
+pip-selfcheck.json
+
+# vscode
+.vscode/*
+!.vscode/extensions.json

.vscode/extensions.json

@@ -1,7 +1,6 @@
 {
   "recommendations": [
     "dbaeumer.vscode-eslint",
-    "ms-vscode.vscode-typescript-tslint-plugin",
     "esbenp.prettier-vscode",
     "bierner.lit-html",
     "runem.lit-plugin"

CODE_OF_CONDUCT.md

@@ -2,79 +2,139 @@
 
 ## Our Pledge
 
-In the interest of fostering an open and welcoming environment, we as
-contributors and maintainers pledge to making participation in our project and
-our community a harassment-free experience for everyone, regardless of age, body
-size, disability, ethnicity, gender identity and expression, level of experience,
-nationality, personal appearance, race, religion, or sexual identity and
-orientation.
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, religion, or sexual identity
+and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
 
 ## Our Standards
 
-Examples of behavior that contributes to creating a positive environment
-include:
+Examples of behavior that contributes to a positive environment for our
+community include:
 
-* Using welcoming and inclusive language
-* Being respectful of differing viewpoints and experiences
-* Gracefully accepting constructive criticism
-* Focusing on what is best for the community
-* Showing empathy towards other community members
+* Demonstrating empathy and kindness toward other people
+* Being respectful of differing opinions, viewpoints, and experiences
+* Giving and gracefully accepting constructive feedback
+* Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience
+* Focusing on what is best not just for us as individuals, but for the
+  overall community
 
-Examples of unacceptable behavior by participants include:
+Examples of unacceptable behavior include:
 
-* The use of sexualized language or imagery and unwelcome sexual attention or
-advances
-* Trolling, insulting/derogatory comments, and personal or political attacks
+* The use of sexualized language or imagery, and sexual attention or
+  advances of any kind
+* Trolling, insulting or derogatory comments, and personal or political attacks
 * Public or private harassment
-* Publishing others' private information, such as a physical or electronic
-  address, without explicit permission
+* Publishing others' private information, such as a physical or email
+  address, without their explicit permission
 * Other conduct which could reasonably be considered inappropriate in a
   professional setting
 
-## Our Responsibilities
+## Enforcement Responsibilities
 
-Project maintainers are responsible for clarifying the standards of acceptable
-behavior and are expected to take appropriate and fair corrective action in
-response to any instances of unacceptable behavior.
+Community leaders are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
 
-Project maintainers have the right and responsibility to remove, edit, or
-reject comments, commits, code, wiki edits, issues, and other contributions
-that are not aligned to this Code of Conduct, or to ban temporarily or
-permanently any contributor for other behaviors that they deem inappropriate,
-threatening, offensive, or harmful.
+Community leaders have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, and will communicate reasons for moderation
+decisions when appropriate.
 
 ## Scope
 
-This Code of Conduct applies both within project spaces and in public spaces
-when an individual is representing the project or its community. Examples of
-representing a project or community include using an official project e-mail
-address, posting via an official social media account, or acting as an appointed
-representative at an online or offline event. Representation of a project may be
-further defined and clarified by project maintainers.
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+Examples of representing our community include using an official e-mail address,
+posting via an official social media account, or acting as an appointed
+representative at an online or offline event.
 
 ## Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting the project team at [safety@home-assistant.io][email]. All
-complaints will be reviewed and investigated and will result in a response that
-is deemed necessary and appropriate to the circumstances. The project team is
-obligated to maintain confidentiality with regard to the reporter of an incident.
-Further details of specific enforcement policies may be posted separately.
+reported to the community leaders responsible for enforcement at
+[safety@home-assistant.io][email] or by using the report/flag feature of
+the medium used. All complaints will be reviewed and investigated promptly and
+fairly.
 
-Project maintainers who do not follow or enforce the Code of Conduct in good
-faith may face temporary or permanent repercussions as determined by other
-members of the project's leadership.
+All community leaders are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining
+the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed
+unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing
+clarity around the nature of the violation and an explanation of why the
+behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series
+of actions.
+
+**Consequence**: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction with
+those enforcing the Code of Conduct, for a specified period of time. This
+includes avoiding interactions in community spaces as well as external channels
+like social media. Violating these terms may lead to a temporary or
+permanent ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including
+sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No public or
+private interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, is allowed during this period.
+Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior,  harassment of an
+individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within
+the community.
 
 ## Attribution
 
-This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
-available [here][version].
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 2.0, available [here][version].
+
+Community Impact Guidelines were inspired by [Mozilla's code of conduct
+enforcement ladder][mozilla].
 
 ## Adoption
 
-This Code of Conduct was first adopted January 21st, 2017 and announced in [this][coc-blog] blog post.
+This Code of Conduct was first adopted January 21st, 2017 and announced in
+[this][coc-blog] blog post and has been updated on May 25th, 2020 to version
+2.0 of the [Contributor Covenant][homepage] as announced in [this][coc2-blog]
+blog post.
 
-[homepage]: http://contributor-covenant.org
-[version]: http://contributor-covenant.org/version/1/4/
+For answers to common questions about this code of conduct, see the FAQ at
+<https://www.contributor-covenant.org/faq>. Translations are available at
+<https://www.contributor-covenant.org/translations>.
+
+[coc-blog]: /blog/2017/01/21/home-assistant-governance/
+[coc2-blog]: /blog/2020/05/25/code-of-conduct-updated/
 [email]: mailto:safety@home-assistant.io
-[coc-blog]: https://home-assistant.io/blog/2017/01/21/home-assistant-governance/
+[homepage]: http://contributor-covenant.org
+[mozilla]: https://github.com/mozilla/diversity
+[version]: https://www.contributor-covenant.org/version/2/0/code_of_conduct.html

Dockerfile

@@ -1,31 +0,0 @@
-FROM node:8.11.1-alpine
-
-# install yarn
-ENV PATH /root/.yarn/bin:$PATH
-
-## Install/force base tools
-RUN apk update \
-  && apk add make g++ curl bash binutils tar git python2 python3 \
-  && rm -rf /var/cache/apk/* \
-  && /bin/bash \
-  && touch ~/.bashrc
-
-## Install yarn
-RUN curl -o- -L https://yarnpkg.com/install.sh | bash
-
-## Setup the project
-RUN mkdir -p /frontend
-
-WORKDIR /frontend
-
-COPY package.json yarn.lock ./
-
-RUN yarn install --frozen-lockfile
-
-COPY . .
-
-COPY script/docker_entrypoint.sh /usr/bin/docker_entrypoint.sh
-
-RUN chmod +x /usr/bin/docker_entrypoint.sh
-
-CMD [ "docker_entrypoint.sh" ]

README.md

@@ -6,12 +6,12 @@ This is the repository for the official [Home Assistant](https://home-assistant.
 
 - [View demo of Home Assistant](https://demo.home-assistant.io/)
 - [More information about Home Assistant](https://home-assistant.io)
-- [Frontend development instructions](https://developers.home-assistant.io/docs/en/frontend_index.html)
+- [Frontend development instructions](https://developers.home-assistant.io/docs/frontend/development/)
 
 ## Development
 
 - Initial setup: `script/setup`
-- Development: [Instructions](https://developers.home-assistant.io/docs/en/frontend_development.html)
+- Development: [Instructions](https://developers.home-assistant.io/docs/frontend/development/)
 - Production build: `script/build_frontend`
 - Gallery: `cd gallery && script/develop_gallery`
 - Hass.io: [Instructions](https://developers.home-assistant.io/docs/en/hassio_hass.html)
@@ -22,15 +22,6 @@ This is the repository for the official [Home Assistant](https://home-assistant.
 
 A complete guide can be found at the following [link](https://www.home-assistant.io/developers/frontend/). It describes a short guide for the build of project.
 
-### Docker environment
-
-It is possible to compile the project and/or run commands in the development environment having only the [Docker](https://www.docker.com) pre-installed in the system. On the root of project you can do:
-
-- `sh ./script/docker_run.sh build` Build all the project with one command
-- `sh ./script/docker_run.sh bash` Open an interactive shell (the same environment generated by the _classic environment_) where you can run commands. This bash work on your project directory and any change on your file is automatically present within your build bash.
-
-**Note**: if you have installed `npm` in addition to the `docker`, you can use the commands `npm run docker_build` and `npm run bash` to get a full build or bash as explained above
-
 ## License
 
 Home Assistant is open-source and Apache 2 licensed. Feel free to browse the repository, learn and reuse parts in your own projects.

azure-pipelines-netlify.yml

@@ -8,7 +8,7 @@ schedules:
     branches:
       include:
       - dev
-    always: false
+    always: true
 variables:
   - group: netlify
 
@@ -24,4 +24,7 @@ jobs:
 
       # Demo
       curl -X POST -d {} https://api.netlify.com/build_hooks/${NETLIFY_DEMO}
+
+      # Gallery
+      curl -X POST -d {} https://api.netlify.com/build_hooks/${NETLIFY_GALLERY}
     displayName: 'Trigger netlify build preview'

azure-pipelines-release.yml

@@ -47,6 +47,8 @@ stages:
 
               script/release
             displayName: "Build and release package"
+  - stage: "Wheels"
+    jobs:
       - template: templates/azp-job-wheels.yaml@azure
         parameters:
           builderVersion: '$(versionWheels)'

build-scripts/babel.js

@@ -1,50 +0,0 @@
-module.exports.babelLoaderConfig = ({ latestBuild }) => {
-  if (latestBuild === undefined) {
-    throw Error("latestBuild not defined for babel loader config");
-  }
-  return {
-    test: /\.m?js$|\.tsx?$/,
-    use: {
-      loader: "babel-loader",
-      options: {
-        presets: [
-          !latestBuild && [
-            require("@babel/preset-env").default,
-            { modules: false },
-          ],
-          [
-            require("@babel/preset-typescript").default,
-            {
-              jsxPragma: "h",
-            },
-          ],
-        ].filter(Boolean),
-        plugins: [
-          // Part of ES2018. Converts {...a, b: 2} to Object.assign({}, a, {b: 2})
-          [
-            "@babel/plugin-proposal-object-rest-spread",
-            { loose: true, useBuiltIns: true },
-          ],
-          // Only support the syntax, Webpack will handle it.
-          "@babel/syntax-dynamic-import",
-          [
-            "@babel/transform-react-jsx",
-            {
-              pragma: "h",
-            },
-          ],
-          "@babel/plugin-proposal-optional-chaining",
-          "@babel/plugin-proposal-nullish-coalescing-operator",
-          [
-            require("@babel/plugin-proposal-decorators").default,
-            { decoratorsBeforeExport: true },
-          ],
-          [
-            require("@babel/plugin-proposal-class-properties").default,
-            { loose: true },
-          ],
-        ],
-      },
-    },
-  };
-};

build-scripts/bundle.js

@@ -0,0 +1,195 @@
+const path = require("path");
+const env = require("./env.js");
+const paths = require("./paths.js");
+
+// Files from NPM Packages that should not be imported
+module.exports.ignorePackages = ({ latestBuild }) => [
+  // Bloats bundle and it's not used.
+  path.resolve(require.resolve("moment"), "../locale"),
+  // Part of yaml.js and only used for !!js functions that we don't use
+  require.resolve("esprima"),
+];
+
+// Files from NPM packages that we should replace with empty file
+module.exports.emptyPackages = ({ latestBuild }) =>
+  [
+    // Contains all color definitions for all material color sets.
+    // We don't use it
+    require.resolve("@polymer/paper-styles/color.js"),
+    require.resolve("@polymer/paper-styles/default-theme.js"),
+    // Loads stuff from a CDN
+    require.resolve("@polymer/font-roboto/roboto.js"),
+    require.resolve("@vaadin/vaadin-material-styles/font-roboto.js"),
+    // Compatibility not needed for latest builds
+    latestBuild &&
+      // wrapped in require.resolve so it blows up if file no longer exists
+      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"),
+  ].filter(Boolean);
+
+module.exports.definedVars = ({ isProdBuild, latestBuild, defineOverlay }) => ({
+  __DEV__: !isProdBuild,
+  __BUILD__: JSON.stringify(latestBuild ? "latest" : "es5"),
+  __VERSION__: JSON.stringify(env.version()),
+  __DEMO__: false,
+  __BACKWARDS_COMPAT__: false,
+  __STATIC_PATH__: "/static/",
+  "process.env.NODE_ENV": JSON.stringify(
+    isProdBuild ? "production" : "development"
+  ),
+  ...defineOverlay,
+});
+
+module.exports.terserOptions = (latestBuild) => ({
+  safari10: true,
+  ecma: latestBuild ? undefined : 5,
+  output: { comments: false },
+});
+
+module.exports.babelOptions = ({ latestBuild }) => ({
+  babelrc: false,
+  presets: [
+    !latestBuild && [require("@babel/preset-env").default, { modules: false }],
+    require("@babel/preset-typescript").default,
+  ].filter(Boolean),
+  plugins: [
+    // 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/syntax-dynamic-import",
+    "@babel/plugin-proposal-optional-chaining",
+    "@babel/plugin-proposal-nullish-coalescing-operator",
+    [
+      require("@babel/plugin-proposal-decorators").default,
+      { decoratorsBeforeExport: true },
+    ],
+    [
+      require("@babel/plugin-proposal-class-properties").default,
+      { loose: true },
+    ],
+  ].filter(Boolean),
+});
+
+// Are already ES5, cause warnings when babelified.
+module.exports.babelExclude = () => [
+  require.resolve("@mdi/js/mdi.js"),
+  require.resolve("hls.js"),
+];
+
+const outputPath = (outputRoot, latestBuild) =>
+  path.resolve(outputRoot, latestBuild ? "frontend_latest" : "frontend_es5");
+
+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,
+  // Names of entrypoints that should not be hashed
+  dontHash: Set<string>
+}
+*/
+
+module.exports.config = {
+  app({ isProdBuild, latestBuild, isStatsBuild }) {
+    return {
+      entry: {
+        service_worker: "./src/entrypoints/service_worker.ts",
+        app: "./src/entrypoints/app.ts",
+        authorize: "./src/entrypoints/authorize.ts",
+        onboarding: "./src/entrypoints/onboarding.ts",
+        core: "./src/entrypoints/core.ts",
+        "custom-panel": "./src/entrypoints/custom-panel.ts",
+      },
+      outputPath: outputPath(paths.app_output_root, latestBuild),
+      publicPath: publicPath(latestBuild),
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+    };
+  },
+
+  demo({ isProdBuild, latestBuild, isStatsBuild }) {
+    return {
+      entry: {
+        main: path.resolve(paths.demo_dir, "src/entrypoint.ts"),
+      },
+      outputPath: outputPath(paths.demo_output_root, latestBuild),
+      publicPath: publicPath(latestBuild),
+      defineOverlay: {
+        __VERSION__: JSON.stringify(`DEMO-${env.version()}`),
+        __DEMO__: true,
+      },
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+    };
+  },
+
+  cast({ isProdBuild, latestBuild }) {
+    const entry = {
+      launcher: path.resolve(paths.cast_dir, "src/launcher/entrypoint.ts"),
+    };
+
+    if (latestBuild) {
+      entry.receiver = path.resolve(
+        paths.cast_dir,
+        "src/receiver/entrypoint.ts"
+      );
+    }
+
+    return {
+      entry,
+      outputPath: outputPath(paths.cast_output_root, latestBuild),
+      publicPath: publicPath(latestBuild),
+      isProdBuild,
+      latestBuild,
+      defineOverlay: {
+        __BACKWARDS_COMPAT__: true,
+      },
+    };
+  },
+
+  hassio({ isProdBuild, latestBuild }) {
+    return {
+      entry: {
+        entrypoint: path.resolve(paths.hassio_dir, "src/entrypoint.ts"),
+      },
+      outputPath: outputPath(paths.hassio_output_root, latestBuild),
+      publicPath: publicPath(latestBuild, paths.hassio_publicPath),
+      isProdBuild,
+      latestBuild,
+    };
+  },
+
+  gallery({ isProdBuild, latestBuild }) {
+    return {
+      entry: {
+        entrypoint: path.resolve(paths.gallery_dir, "src/entrypoint.js"),
+      },
+      outputPath: outputPath(paths.gallery_output_root, latestBuild),
+      publicPath: publicPath(latestBuild),
+      isProdBuild,
+      latestBuild,
+    };
+  },
+};

build-scripts/env.js

@@ -1,14 +1,32 @@
+const fs = require("fs");
+const path = require("path");
+const paths = require("./paths.js");
+
 module.exports = {
+  useRollup() {
+    return process.env.ROLLUP === "1";
+  },
   isProdBuild() {
-    return process.env.NODE_ENV === "production";
+    return (
+      process.env.NODE_ENV === "production" || module.exports.isStatsBuild()
+    );
   },
   isStatsBuild() {
     return process.env.STATS === "1";
   },
-  isTravis() {
-    return process.env.TRAVIS === "true";
+  isTest() {
+    return process.env.IS_TEST === "true";
   },
   isNetlify() {
     return process.env.NETLIFY === "true";
   },
+  version() {
+    const version = fs
+      .readFileSync(path.resolve(paths.polymer_dir, "setup.py"), "utf8")
+      .match(/\d{8}\.\d+/);
+    if (!version) {
+      throw Error("Version not found");
+    }
+    return version[0];
+  },
 };

build-scripts/gulp/app.js

@@ -1,16 +1,17 @@
 // Run HA develop mode
 const gulp = require("gulp");
 
-const envVars = require("../env");
+const env = require("../env");
 
 require("./clean.js");
 require("./translations.js");
-require("./gen-icons.js");
+require("./gen-icons-json.js");
 require("./gather-static.js");
 require("./compress.js");
 require("./webpack.js");
 require("./service-worker.js");
 require("./entry-html.js");
+require("./rollup.js");
 
 gulp.task(
   "develop-app",
@@ -20,14 +21,14 @@ gulp.task(
     },
     "clean",
     gulp.parallel(
-      "gen-service-worker-dev",
-      gulp.parallel("gen-icons-app", "gen-icons-mdi"),
+      "gen-service-worker-app-dev",
+      "gen-icons-json",
       "gen-pages-dev",
       "gen-index-app-dev",
       "build-translations"
     ),
-    "copy-static",
-    "webpack-watch-app"
+    "copy-static-app",
+    env.useRollup() ? "rollup-watch-app" : "webpack-watch-app"
   )
 );
 
@@ -38,15 +39,15 @@ gulp.task(
       process.env.NODE_ENV = "production";
     },
     "clean",
-    gulp.parallel("gen-icons-app", "gen-icons-mdi", "build-translations"),
-    "copy-static",
-    "webpack-prod-app",
+    gulp.parallel("gen-icons-json", "build-translations"),
+    "copy-static-app",
+    env.useRollup() ? "rollup-prod-app" : "webpack-prod-app",
     ...// Don't compress running tests
-    (envVars.isTravis() ? [] : ["compress-app"]),
+    (env.isTest() ? [] : ["compress-app"]),
     gulp.parallel(
       "gen-pages-prod",
       "gen-index-app-prod",
-      "gen-service-worker-prod"
+      "gen-service-worker-app-prod"
     )
   )
 );

build-scripts/gulp/cast.js

@@ -1,12 +1,14 @@
 const gulp = require("gulp");
 
+const env = require("../env");
+
 require("./clean.js");
 require("./translations.js");
-require("./gen-icons.js");
 require("./gather-static.js");
 require("./webpack.js");
 require("./service-worker.js");
 require("./entry-html.js");
+require("./rollup.js");
 
 gulp.task(
   "develop-cast",
@@ -15,14 +17,11 @@ gulp.task(
       process.env.NODE_ENV = "development";
     },
     "clean-cast",
-    gulp.parallel(
-      "gen-icons-app",
-      "gen-icons-mdi",
-      "gen-index-cast-dev",
-      "build-translations"
-    ),
+    "translations-enable-merge-backend",
+    gulp.parallel("gen-icons-json", "build-translations"),
     "copy-static-cast",
-    "webpack-dev-server-cast"
+    "gen-index-cast-dev",
+    env.useRollup() ? "rollup-dev-server-cast" : "webpack-dev-server-cast"
   )
 );
 
@@ -33,9 +32,10 @@ gulp.task(
       process.env.NODE_ENV = "production";
     },
     "clean-cast",
-    gulp.parallel("gen-icons-app", "gen-icons-mdi", "build-translations"),
+    "translations-enable-merge-backend",
+    gulp.parallel("gen-icons-json", "build-translations"),
     "copy-static-cast",
-    "webpack-prod-cast",
+    env.useRollup() ? "rollup-prod-cast" : "webpack-prod-cast",
     "gen-index-cast-prod"
   )
 );

build-scripts/gulp/clean.js

@@ -1,39 +1,36 @@
 const del = require("del");
 const gulp = require("gulp");
-const config = require("../paths");
+const paths = require("../paths");
 require("./translations");
 
 gulp.task(
   "clean",
   gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([config.root, config.build_dir]);
+    return del([paths.app_output_root, paths.build_dir]);
   })
 );
 
 gulp.task(
   "clean-demo",
   gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([config.demo_root, config.build_dir]);
+    return del([paths.demo_output_root, paths.build_dir]);
   })
 );
 
 gulp.task(
   "clean-cast",
   gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([config.cast_root, config.build_dir]);
+    return del([paths.cast_output_root, paths.build_dir]);
   })
 );
 
-gulp.task(
-  "clean-hassio",
-  gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([config.hassio_root, config.build_dir]);
-  })
-);
+gulp.task("clean-hassio", function cleanOutputAndBuildDir() {
+  return del([paths.hassio_output_root, paths.build_dir]);
+});
 
 gulp.task(
   "clean-gallery",
   gulp.parallel("clean-translations", function cleanOutputAndBuildDir() {
-    return del([config.gallery_root, config.build_dir]);
+    return del([paths.gallery_output_root, paths.build_dir]);
   })
 );

build-scripts/gulp/compress.js

@@ -6,33 +6,40 @@ const merge = require("merge-stream");
 const path = require("path");
 const paths = require("../paths");
 
+const zopfliOptions = { threshold: 150 };
+
 gulp.task("compress-app", function compressApp() {
   const jsLatest = gulp
-    .src(path.resolve(paths.output, "**/*.js"))
-    .pipe(zopfli())
-    .pipe(gulp.dest(paths.output));
+    .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.output_es5, "**/*.js"))
-    .pipe(zopfli())
-    .pipe(gulp.dest(paths.output_es5));
+    .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.static, "polyfills/*.js"))
-    .pipe(zopfli())
-    .pipe(gulp.dest(path.resolve(paths.static, "polyfills")));
+    .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.static, "translations/*.json"))
-    .pipe(zopfli())
-    .pipe(gulp.dest(path.resolve(paths.static, "translations")));
+    .src(path.resolve(paths.app_output_static, "translations/**/*.json"))
+    .pipe(zopfli(zopfliOptions))
+    .pipe(gulp.dest(path.resolve(paths.app_output_static, "translations")));
 
-  return merge(jsLatest, jsEs5, polyfills, 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_root, "**/*.js"))
-    .pipe(zopfli())
-    .pipe(gulp.dest(paths.hassio_root));
+    .src(path.resolve(paths.hassio_output_root, "**/*.js"))
+    .pipe(zopfli(zopfliOptions))
+    .pipe(gulp.dest(paths.hassio_output_root));
 });

build-scripts/gulp/demo.js

@@ -1,13 +1,16 @@
 // Run demo develop mode
 const gulp = require("gulp");
 
+const env = require("../env");
+
 require("./clean.js");
 require("./translations.js");
-require("./gen-icons.js");
+require("./gen-icons-json.js");
 require("./gather-static.js");
 require("./webpack.js");
 require("./service-worker.js");
 require("./entry-html.js");
+require("./rollup.js");
 
 gulp.task(
   "develop-demo",
@@ -16,15 +19,10 @@ gulp.task(
       process.env.NODE_ENV = "development";
     },
     "clean-demo",
-    gulp.parallel(
-      "gen-icons-app",
-      "gen-icons-mdi",
-      "gen-icons-demo",
-      "gen-index-demo-dev",
-      "build-translations"
-    ),
+    "translations-enable-merge-backend",
+    gulp.parallel("gen-icons-json", "gen-index-demo-dev", "build-translations"),
     "copy-static-demo",
-    "webpack-dev-server-demo"
+    env.useRollup() ? "rollup-dev-server-demo" : "webpack-dev-server-demo"
   )
 );
 
@@ -35,14 +33,11 @@ gulp.task(
       process.env.NODE_ENV = "production";
     },
     "clean-demo",
-    gulp.parallel(
-      "gen-icons-app",
-      "gen-icons-mdi",
-      "gen-icons-demo",
-      "build-translations"
-    ),
+    // Cast needs to be backwards compatible and older HA has no translations
+    "translations-enable-merge-backend",
+    gulp.parallel("gen-icons-json", "build-translations"),
     "copy-static-demo",
-    "webpack-prod-demo",
+    env.useRollup() ? "rollup-prod-demo" : "webpack-prod-demo",
     "gen-index-demo-prod"
   )
 );

build-scripts/gulp/download_translations.js

@@ -1,9 +1,14 @@
 const del = require("del");
 const gulp = require("gulp");
+const fs = require("fs");
 const mapStream = require("map-stream");
 
-const inDir = "translations";
-const downloadDir = inDir + "/downloads";
+const inDirFrontend = "translations/frontend";
+const inDirBackend = "translations/backend";
+const downloadDir = "translations/downloads";
+const srcMeta = "src/translations/translationMetadata.json";
+
+const encoding = "utf8";
 
 const tasks = [];
 
@@ -12,7 +17,7 @@ function hasHtml(data) {
 }
 
 function recursiveCheckHasHtml(file, data, errors, recKey) {
-  Object.keys(data).forEach(function(key) {
+  Object.keys(data).forEach(function (key) {
     if (typeof data[key] === "object") {
       const nextRecKey = recKey ? `${recKey}.${key}` : key;
       recursiveCheckHasHtml(file, data[key], errors, nextRecKey);
@@ -25,7 +30,7 @@ function recursiveCheckHasHtml(file, data, errors, recKey) {
 function checkHtml() {
   const errors = [];
 
-  return mapStream(function(file, cb) {
+  return mapStream(function (file, cb) {
     const content = file.contents;
     let error;
     if (content) {
@@ -42,20 +47,36 @@ function checkHtml() {
 }
 
 let taskName = "clean-downloaded-translations";
-gulp.task(taskName, function() {
+gulp.task(taskName, function () {
   return del([`${downloadDir}/**`]);
 });
 tasks.push(taskName);
 
 taskName = "check-translations-html";
-gulp.task(taskName, function() {
+gulp.task(taskName, function () {
   return gulp.src(`${downloadDir}/*.json`).pipe(checkHtml());
 });
 tasks.push(taskName);
 
+taskName = "check-all-files-exist";
+gulp.task(taskName, function () {
+  const file = fs.readFileSync(srcMeta, { encoding });
+  const meta = JSON.parse(file);
+  Object.keys(meta).forEach((lang) => {
+    if (!fs.existsSync(`${inDirFrontend}/${lang}.json`)) {
+      fs.writeFileSync(`${inDirFrontend}/${lang}.json`, JSON.stringify({}));
+    }
+    if (!fs.existsSync(`${inDirBackend}/${lang}.json`)) {
+      fs.writeFileSync(`${inDirBackend}/${lang}.json`, JSON.stringify({}));
+    }
+  });
+  return Promise.resolve();
+});
+tasks.push(taskName);
+
 taskName = "move-downloaded-translations";
-gulp.task(taskName, function() {
-  return gulp.src(`${downloadDir}/*.json`).pipe(gulp.dest(inDir));
+gulp.task(taskName, function () {
+  return gulp.src(`${downloadDir}/*.json`).pipe(gulp.dest(inDirFrontend));
 });
 tasks.push(taskName);
 
@@ -65,6 +86,7 @@ gulp.task(
   gulp.series(
     "check-translations-html",
     "move-downloaded-translations",
+    "check-all-files-exist",
     "clean-downloaded-translations"
   )
 );

build-scripts/gulp/entry-html.js

@@ -6,31 +6,36 @@ const fs = require("fs-extra");
 const path = require("path");
 const template = require("lodash.template");
 const minify = require("html-minifier").minify;
-const config = require("../paths.js");
+const paths = require("../paths.js");
+const env = require("../env.js");
 
 const templatePath = (tpl) =>
-  path.resolve(config.polymer_dir, "src/html/", `${tpl}.html.template`);
+  path.resolve(paths.polymer_dir, "src/html/", `${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, renderTemplate });
+  return compiled({
+    ...data,
+    useRollup: env.useRollup(),
+    renderTemplate,
+  });
 };
 
 const renderDemoTemplate = (pth, data = {}) =>
   renderTemplate(pth, data, (tpl) =>
-    path.resolve(config.demo_dir, "src/html/", `${tpl}.html.template`)
+    path.resolve(paths.demo_dir, "src/html/", `${tpl}.html.template`)
   );
 
 const renderCastTemplate = (pth, data = {}) =>
   renderTemplate(pth, data, (tpl) =>
-    path.resolve(config.cast_dir, "src/html/", `${tpl}.html.template`)
+    path.resolve(paths.cast_dir, "src/html/", `${tpl}.html.template`)
   );
 
 const renderGalleryTemplate = (pth, data = {}) =>
   renderTemplate(pth, data, (tpl) =>
-    path.resolve(config.gallery_dir, "src/html/", `${tpl}.html.template`)
+    path.resolve(paths.gallery_dir, "src/html/", `${tpl}.html.template`)
   );
 
 const minifyHtml = (content) =>
@@ -47,34 +52,37 @@ gulp.task("gen-pages-dev", (done) => {
   for (const page of PAGES) {
     const content = renderTemplate(page, {
       latestPageJS: `/frontend_latest/${page}.js`,
-      latestHassIconsJS: "/frontend_latest/hass-icons.js",
 
-      es5Compatibility: "/frontend_es5/compatibility.js",
       es5PageJS: `/frontend_es5/${page}.js`,
-      es5HassIconsJS: "/frontend_es5/hass-icons.js",
     });
 
-    fs.outputFileSync(path.resolve(config.root, `${page}.html`), content);
+    fs.outputFileSync(
+      path.resolve(paths.app_output_root, `${page}.html`),
+      content
+    );
   }
   done();
 });
 
 gulp.task("gen-pages-prod", (done) => {
-  const latestManifest = require(path.resolve(config.output, "manifest.json"));
-  const es5Manifest = require(path.resolve(config.output_es5, "manifest.json"));
+  const latestManifest = require(path.resolve(
+    paths.app_output_latest,
+    "manifest.json"
+  ));
+  const es5Manifest = require(path.resolve(
+    paths.app_output_es5,
+    "manifest.json"
+  ));
 
   for (const page of PAGES) {
     const content = renderTemplate(page, {
       latestPageJS: latestManifest[`${page}.js`],
-      latestHassIconsJS: latestManifest["hass-icons.js"],
 
-      es5Compatibility: es5Manifest["compatibility.js"],
       es5PageJS: es5Manifest[`${page}.js`],
-      es5HassIconsJS: es5Manifest["hass-icons.js"],
     });
 
     fs.outputFileSync(
-      path.resolve(config.root, `${page}.html`),
+      path.resolve(paths.app_output_root, `${page}.html`),
       minifyHtml(content)
     );
   }
@@ -82,43 +90,44 @@ gulp.task("gen-pages-prod", (done) => {
 });
 
 gulp.task("gen-index-app-dev", (done) => {
-  // In dev mode we don't mangle names, so we hardcode urls. That way we can
-  // run webpack as last in watch mode, which blocks output.
   const content = renderTemplate("index", {
     latestAppJS: "/frontend_latest/app.js",
     latestCoreJS: "/frontend_latest/core.js",
     latestCustomPanelJS: "/frontend_latest/custom-panel.js",
-    latestHassIconsJS: "/frontend_latest/hass-icons.js",
 
-    es5Compatibility: "/frontend_es5/compatibility.js",
     es5AppJS: "/frontend_es5/app.js",
     es5CoreJS: "/frontend_es5/core.js",
     es5CustomPanelJS: "/frontend_es5/custom-panel.js",
-    es5HassIconsJS: "/frontend_es5/hass-icons.js",
   }).replace(/#THEMEC/g, "{{ theme_color }}");
 
-  fs.outputFileSync(path.resolve(config.root, "index.html"), content);
+  fs.outputFileSync(path.resolve(paths.app_output_root, "index.html"), content);
   done();
 });
 
 gulp.task("gen-index-app-prod", (done) => {
-  const latestManifest = require(path.resolve(config.output, "manifest.json"));
-  const es5Manifest = require(path.resolve(config.output_es5, "manifest.json"));
+  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"],
-    latestHassIconsJS: latestManifest["hass-icons.js"],
 
-    es5Compatibility: es5Manifest["compatibility.js"],
     es5AppJS: es5Manifest["app.js"],
     es5CoreJS: es5Manifest["core.js"],
     es5CustomPanelJS: es5Manifest["custom-panel.js"],
-    es5HassIconsJS: es5Manifest["hass-icons.js"],
   });
   const minified = minifyHtml(content).replace(/#THEMEC/g, "{{ theme_color }}");
 
-  fs.outputFileSync(path.resolve(config.root, "index.html"), minified);
+  fs.outputFileSync(
+    path.resolve(paths.app_output_root, "index.html"),
+    minified
+  );
   done();
 });
 
@@ -127,7 +136,7 @@ gulp.task("gen-index-cast-dev", (done) => {
     latestReceiverJS: "/frontend_latest/receiver.js",
   });
   fs.outputFileSync(
-    path.resolve(config.cast_root, "receiver.html"),
+    path.resolve(paths.cast_output_root, "receiver.html"),
     contentReceiver
   );
 
@@ -135,14 +144,17 @@ gulp.task("gen-index-cast-dev", (done) => {
     latestLauncherJS: "/frontend_latest/launcher.js",
     es5LauncherJS: "/frontend_es5/launcher.js",
   });
-  fs.outputFileSync(path.resolve(config.cast_root, "faq.html"), contentFAQ);
+  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(config.cast_root, "index.html"),
+    path.resolve(paths.cast_output_root, "index.html"),
     contentLauncher
   );
   done();
@@ -150,11 +162,11 @@ gulp.task("gen-index-cast-dev", (done) => {
 
 gulp.task("gen-index-cast-prod", (done) => {
   const latestManifest = require(path.resolve(
-    config.cast_output,
+    paths.cast_output_latest,
     "manifest.json"
   ));
   const es5Manifest = require(path.resolve(
-    config.cast_output_es5,
+    paths.cast_output_es5,
     "manifest.json"
   ));
 
@@ -162,7 +174,7 @@ gulp.task("gen-index-cast-prod", (done) => {
     latestReceiverJS: latestManifest["receiver.js"],
   });
   fs.outputFileSync(
-    path.resolve(config.cast_root, "receiver.html"),
+    path.resolve(paths.cast_output_root, "receiver.html"),
     contentReceiver
   );
 
@@ -170,68 +182,74 @@ gulp.task("gen-index-cast-prod", (done) => {
     latestLauncherJS: latestManifest["launcher.js"],
     es5LauncherJS: es5Manifest["launcher.js"],
   });
-  fs.outputFileSync(path.resolve(config.cast_root, "faq.html"), contentFAQ);
+  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(config.cast_root, "index.html"),
+    path.resolve(paths.cast_output_root, "index.html"),
     contentLauncher
   );
   done();
 });
 
 gulp.task("gen-index-demo-dev", (done) => {
-  // In dev mode we don't mangle names, so we hardcode urls. That way we can
-  // run webpack as last in watch mode, which blocks output.
   const content = renderDemoTemplate("index", {
     latestDemoJS: "/frontend_latest/main.js",
 
-    es5Compatibility: "/frontend_es5/compatibility.js",
     es5DemoJS: "/frontend_es5/main.js",
   });
 
-  fs.outputFileSync(path.resolve(config.demo_root, "index.html"), content);
+  fs.outputFileSync(
+    path.resolve(paths.demo_output_root, "index.html"),
+    content
+  );
   done();
 });
 
 gulp.task("gen-index-demo-prod", (done) => {
   const latestManifest = require(path.resolve(
-    config.demo_output,
+    paths.demo_output_latest,
     "manifest.json"
   ));
   const es5Manifest = require(path.resolve(
-    config.demo_output_es5,
+    paths.demo_output_es5,
     "manifest.json"
   ));
   const content = renderDemoTemplate("index", {
     latestDemoJS: latestManifest["main.js"],
 
-    es5Compatibility: es5Manifest["compatibility.js"],
     es5DemoJS: es5Manifest["main.js"],
   });
   const minified = minifyHtml(content);
 
-  fs.outputFileSync(path.resolve(config.demo_root, "index.html"), minified);
+  fs.outputFileSync(
+    path.resolve(paths.demo_output_root, "index.html"),
+    minified
+  );
   done();
 });
 
 gulp.task("gen-index-gallery-dev", (done) => {
-  // In dev mode we don't mangle names, so we hardcode urls. That way we can
-  // run webpack as last in watch mode, which blocks output.
   const content = renderGalleryTemplate("index", {
-    latestGalleryJS: "./entrypoint.js",
+    latestGalleryJS: "./frontend_latest/entrypoint.js",
   });
 
-  fs.outputFileSync(path.resolve(config.gallery_root, "index.html"), content);
+  fs.outputFileSync(
+    path.resolve(paths.gallery_output_root, "index.html"),
+    content
+  );
   done();
 });
 
 gulp.task("gen-index-gallery-prod", (done) => {
   const latestManifest = require(path.resolve(
-    config.gallery_output,
+    paths.gallery_output_latest,
     "manifest.json"
   ));
   const content = renderGalleryTemplate("index", {
@@ -239,6 +257,48 @@ gulp.task("gen-index-gallery-prod", (done) => {
   });
   const minified = minifyHtml(content);
 
-  fs.outputFileSync(path.resolve(config.gallery_root, "index.html"), minified);
+  fs.outputFileSync(
+    path.resolve(paths.gallery_output_root, "index.html"),
+    minified
+  );
   done();
 });
+
+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 });
+  fs.writeFileSync(
+    path.resolve(paths.hassio_output_root, "entrypoint.js"),
+    `
+try {
+  new Function("import('${latestEntrypoint}')")();
+} catch (err) {
+  var el = document.createElement('script');
+  el.src = '${es5Entrypoint}';
+  document.body.appendChild(el);
+}
+  `,
+    { encoding: "utf-8" }
+  );
+}

build-scripts/gulp/gallery.js

@@ -1,13 +1,44 @@
 // Run demo develop mode
 const gulp = require("gulp");
+const fs = require("fs");
+const path = require("path");
+
+const env = require("../env");
+const paths = require("../paths");
 
 require("./clean.js");
 require("./translations.js");
-require("./gen-icons.js");
+require("./gen-icons-json.js");
 require("./gather-static.js");
 require("./webpack.js");
 require("./service-worker.js");
 require("./entry-html.js");
+require("./rollup.js");
+
+gulp.task("gather-gallery-demos", async function gatherDemos() {
+  const files = await fs.promises.readdir(
+    path.resolve(paths.gallery_dir, "src/demos")
+  );
+
+  let content = "export const DEMOS = {\n";
+
+  for (const file of files) {
+    const demoId = path.basename(file, ".ts");
+    const demoPath = "../src/demos/" + demoId;
+    content += `  "${demoId}": () => import("${demoPath}"),\n`;
+  }
+
+  content += "};";
+
+  const galleryBuild = path.resolve(paths.gallery_dir, "build");
+
+  fs.mkdirSync(galleryBuild, { recursive: true });
+  fs.writeFileSync(
+    path.resolve(galleryBuild, "import-demos.ts"),
+    content,
+    "utf-8"
+  );
+});
 
 gulp.task(
   "develop-gallery",
@@ -16,10 +47,15 @@ gulp.task(
       process.env.NODE_ENV = "development";
     },
     "clean-gallery",
-    gulp.parallel("gen-icons-app", "gen-icons-mdi", "build-translations"),
+    "translations-enable-merge-backend",
+    gulp.parallel(
+      "gen-icons-json",
+      "build-translations",
+      "gather-gallery-demos"
+    ),
     "copy-static-gallery",
     "gen-index-gallery-dev",
-    "webpack-dev-server-gallery"
+    env.useRollup() ? "rollup-dev-server-gallery" : "webpack-dev-server-gallery"
   )
 );
 
@@ -30,9 +66,14 @@ gulp.task(
       process.env.NODE_ENV = "production";
     },
     "clean-gallery",
-    gulp.parallel("gen-icons-app", "gen-icons-mdi", "build-translations"),
+    "translations-enable-merge-backend",
+    gulp.parallel(
+      "gen-icons-json",
+      "build-translations",
+      "gather-gallery-demos"
+    ),
     "copy-static-gallery",
-    "webpack-prod-gallery",
+    env.useRollup() ? "rollup-prod-gallery" : "webpack-prod-gallery",
     "gen-index-gallery-prod"
   )
 );

build-scripts/gulp/gather-static.js

@@ -26,14 +26,23 @@ function copyTranslations(staticDir) {
   );
 }
 
+function copyMdiIcons(staticDir) {
+  const staticPath = genStaticPath(staticDir);
+
+  // MDI icons output
+  fs.copySync(polyPath("build/mdi"), staticPath("mdi"));
+}
+
 function copyPolyfills(staticDir) {
   const staticPath = genStaticPath(staticDir);
 
-  // Web Component polyfills and adapters
+  // For custom panels using ES5 builds that don't use Babel 7+
   copyFileDir(
     npmPath("@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"),
     staticPath("polyfills/")
   );
+
+  // Web Component polyfills and adapters
   copyFileDir(
     npmPath("@webcomponents/webcomponentsjs/webcomponents-bundle.js"),
     staticPath("polyfills/")
@@ -44,6 +53,12 @@ function copyPolyfills(staticDir) {
   );
 }
 
+function copyLoaderJS(staticDir) {
+  const staticPath = genStaticPath(staticDir);
+  copyFileDir(npmPath("systemjs/dist/s.min.js"), staticPath("js"));
+  copyFileDir(npmPath("systemjs/dist/s.min.js.map"), staticPath("js"));
+}
+
 function copyFonts(staticDir) {
   const staticPath = genStaticPath(staticDir);
   // Local fonts
@@ -65,67 +80,68 @@ function copyMapPanel(staticDir) {
   );
 }
 
-gulp.task("copy-translations", (done) => {
-  const staticDir = paths.static;
+gulp.task("copy-translations-app", async () => {
+  const staticDir = paths.app_output_static;
   copyTranslations(staticDir);
-  done();
 });
 
-gulp.task("copy-static", (done) => {
-  const staticDir = paths.static;
-  const staticPath = genStaticPath(paths.static);
+gulp.task("copy-static-app", async () => {
+  const staticDir = paths.app_output_static;
   // Basic static files
-  fs.copySync(polyPath("public"), paths.root);
+  fs.copySync(polyPath("public"), paths.app_output_root);
 
+  copyLoaderJS(staticDir);
   copyPolyfills(staticDir);
   copyFonts(staticDir);
   copyTranslations(staticDir);
+  copyMdiIcons(staticDir);
 
   // Panel assets
-  copyFileDir(
-    npmPath("react-big-calendar/lib/css/react-big-calendar.css"),
-    staticPath("panels/calendar/")
-  );
   copyMapPanel(staticDir);
-  done();
 });
 
-gulp.task("copy-static-demo", (done) => {
+gulp.task("copy-static-demo", async () => {
   // Copy app static files
   fs.copySync(
     polyPath("public/static"),
-    path.resolve(paths.demo_root, "static")
+    path.resolve(paths.demo_output_root, "static")
   );
   // Copy demo static files
-  fs.copySync(path.resolve(paths.demo_dir, "public"), paths.demo_root);
+  fs.copySync(path.resolve(paths.demo_dir, "public"), paths.demo_output_root);
 
-  copyPolyfills(paths.demo_static);
-  copyMapPanel(paths.demo_static);
-  copyFonts(paths.demo_static);
-  copyTranslations(paths.demo_static);
-  done();
+  copyLoaderJS(paths.demo_output_static);
+  copyPolyfills(paths.demo_output_static);
+  copyMapPanel(paths.demo_output_static);
+  copyFonts(paths.demo_output_static);
+  copyTranslations(paths.demo_output_static);
+  copyMdiIcons(paths.demo_output_static);
 });
 
-gulp.task("copy-static-cast", (done) => {
+gulp.task("copy-static-cast", async () => {
   // Copy app static files
-  fs.copySync(polyPath("public/static"), paths.cast_static);
+  fs.copySync(polyPath("public/static"), paths.cast_output_static);
   // Copy cast static files
-  fs.copySync(path.resolve(paths.cast_dir, "public"), paths.cast_root);
+  fs.copySync(path.resolve(paths.cast_dir, "public"), paths.cast_output_root);
 
-  copyMapPanel(paths.cast_static);
-  copyFonts(paths.cast_static);
-  copyTranslations(paths.cast_static);
-  done();
+  copyLoaderJS(paths.cast_output_static);
+  copyPolyfills(paths.cast_output_static);
+  copyMapPanel(paths.cast_output_static);
+  copyFonts(paths.cast_output_static);
+  copyTranslations(paths.cast_output_static);
+  copyMdiIcons(paths.cast_output_static);
 });
 
-gulp.task("copy-static-gallery", (done) => {
+gulp.task("copy-static-gallery", async () => {
   // Copy app static files
-  fs.copySync(polyPath("public/static"), paths.gallery_static);
+  fs.copySync(polyPath("public/static"), paths.gallery_output_static);
   // Copy gallery static files
-  fs.copySync(path.resolve(paths.gallery_dir, "public"), paths.gallery_root);
+  fs.copySync(
+    path.resolve(paths.gallery_dir, "public"),
+    paths.gallery_output_root
+  );
 
-  copyMapPanel(paths.gallery_static);
-  copyFonts(paths.gallery_static);
-  copyTranslations(paths.gallery_static);
-  done();
+  copyMapPanel(paths.gallery_output_static);
+  copyFonts(paths.gallery_output_static);
+  copyTranslations(paths.gallery_output_static);
+  copyMdiIcons(paths.gallery_output_static);
 });

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

@@ -0,0 +1,120 @@
+const gulp = require("gulp");
+const path = require("path");
+const fs = require("fs");
+const hash = require("object-hash");
+
+const ICON_PACKAGE_PATH = path.resolve(
+  __dirname,
+  "../../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 encoding = "utf8";
+
+const getMeta = () => {
+  const file = fs.readFileSync(META_PATH, { encoding });
+  const meta = JSON.parse(file);
+  return meta.map((icon) => {
+    const svg = fs.readFileSync(`${ICON_PATH}/${icon.name}.svg`, {
+      encoding,
+    });
+    return { path: svg.match(/ d="([^"]+)"/)[1], name: icon.name };
+  });
+};
+
+const addRemovedMeta = (meta) => {
+  const file = fs.readFileSync(REMOVED_ICONS_PATH, { encoding });
+  const removed = JSON.parse(file);
+  const combinedMeta = [...meta, ...removed];
+  return combinedMeta.sort((a, b) => a.name.localeCompare(b.name));
+};
+
+const splitBySize = (meta) => {
+  const chunks = [];
+  const CHUNK_SIZE = 50000;
+
+  let curSize = 0;
+  let startKey;
+  let icons = [];
+
+  Object.values(meta).forEach((icon) => {
+    if (startKey === undefined) {
+      startKey = icon.name;
+    }
+    curSize += icon.path.length;
+    icons.push(icon);
+    if (curSize > CHUNK_SIZE) {
+      chunks.push({
+        startKey,
+        endKey: icon.name,
+        icons,
+      });
+      curSize = 0;
+      startKey = undefined;
+      icons = [];
+    }
+  });
+
+  chunks.push({
+    startKey,
+    icons,
+  });
+
+  return chunks;
+};
+
+const findDifferentiator = (curString, prevString) => {
+  for (let i = 0; i < curString.length; i++) {
+    if (curString[i] !== prevString[i]) {
+      return curString.substring(0, i + 1);
+    }
+  }
+  throw new Error("Cannot find differentiator", curString, prevString);
+};
+
+gulp.task("gen-icons-json", (done) => {
+  const meta = addRemovedMeta(getMeta());
+  const split = splitBySize(meta);
+
+  if (!fs.existsSync(OUTPUT_DIR)) {
+    fs.mkdirSync(OUTPUT_DIR, { recursive: true });
+  }
+  const parts = [];
+
+  let lastEnd;
+  split.forEach((chunk) => {
+    let startKey;
+    if (lastEnd === undefined) {
+      chunk.startKey = undefined;
+      startKey = undefined;
+    } else {
+      startKey = findDifferentiator(chunk.startKey, lastEnd);
+    }
+    lastEnd = chunk.endKey;
+
+    const output = {};
+    chunk.icons.forEach((icon) => {
+      output[icon.name] = icon.path;
+    });
+    const filename = hash(output);
+    parts.push({ start: startKey, file: filename });
+    fs.writeFileSync(
+      path.resolve(OUTPUT_DIR, `${filename}.json`),
+      JSON.stringify(output)
+    );
+  });
+
+  const file = fs.readFileSync(PACKAGE_PATH, { encoding });
+  const package = JSON.parse(file);
+
+  fs.writeFileSync(
+    path.resolve(OUTPUT_DIR, "iconMetadata.json"),
+    JSON.stringify({ version: package.version, parts })
+  );
+
+  done();
+});

build-scripts/gulp/gen-icons.js

@@ -1,127 +0,0 @@
-const gulp = require("gulp");
-const path = require("path");
-const fs = require("fs");
-const paths = require("../paths");
-const { mapFiles } = require("../util");
-
-const ICON_PACKAGE_PATH = path.resolve(
-  __dirname,
-  "../../node_modules/@mdi/svg/"
-);
-const META_PATH = path.resolve(ICON_PACKAGE_PATH, "meta.json");
-const ICON_PATH = path.resolve(ICON_PACKAGE_PATH, "svg");
-const OUTPUT_DIR = path.resolve(__dirname, "../../build");
-const MDI_OUTPUT_PATH = path.resolve(OUTPUT_DIR, "mdi.html");
-const HASS_OUTPUT_PATH = path.resolve(OUTPUT_DIR, "hass-icons.html");
-
-const BUILT_IN_PANEL_ICONS = [
-  "calendar", // Calendar
-  "settings", // Config
-  "home-assistant", // Hass.io
-  "poll-box", // History panel
-  "format-list-bulleted-type", // Logbook
-  "mailbox", // Mailbox
-  "tooltip-account", // Map
-  "cart", // Shopping List
-  "hammer", // developer-tools
-];
-
-// Given an icon name, load the SVG file
-function loadIcon(name) {
-  const iconPath = path.resolve(ICON_PATH, `${name}.svg`);
-  try {
-    return fs.readFileSync(iconPath, "utf-8");
-  } catch (err) {
-    return null;
-  }
-}
-
-// Given an SVG file, convert it to an iron-iconset-svg definition
-function transformXMLtoPolymer(name, xml) {
-  const start = xml.indexOf("><path") + 1;
-  const end = xml.length - start - 6;
-  const pth = xml.substr(start, end);
-  return `<g id="${name}">${pth}</g>`;
-}
-
-// Given an iconset name and icon names, generate a polymer iconset
-function generateIconset(iconsetName, iconNames) {
-  const iconDefs = Array.from(iconNames)
-    .map((name) => {
-      const iconDef = loadIcon(name);
-      if (!iconDef) {
-        throw new Error(`Unknown icon referenced: ${name}`);
-      }
-      return transformXMLtoPolymer(name, iconDef);
-    })
-    .join("");
-  return `<ha-iconset-svg name="${iconsetName}" size="24"><svg><defs>${iconDefs}</defs></svg></ha-iconset-svg>`;
-}
-
-// Find all icons used by the project.
-function findIcons(searchPath, iconsetName) {
-  const iconRegex = new RegExp(`${iconsetName}:[\\w-]+`, "g");
-  const icons = new Set();
-  function processFile(filename) {
-    const content = fs.readFileSync(filename);
-    let match;
-    // eslint-disable-next-line
-    while ((match = iconRegex.exec(content))) {
-      // strip off "hass:" and add to set
-      icons.add(match[0].substr(iconsetName.length + 1));
-    }
-  }
-  mapFiles(searchPath, ".js", processFile);
-  mapFiles(searchPath, ".ts", processFile);
-  return icons;
-}
-
-gulp.task("gen-icons-mdi", (done) => {
-  const meta = JSON.parse(
-    fs.readFileSync(path.resolve(ICON_PACKAGE_PATH, META_PATH), "UTF-8")
-  );
-  const iconNames = meta.map((iconInfo) => iconInfo.name);
-  if (!fs.existsSync(OUTPUT_DIR)) {
-    fs.mkdirSync(OUTPUT_DIR);
-  }
-  fs.writeFileSync(MDI_OUTPUT_PATH, generateIconset("mdi", iconNames));
-  done();
-});
-
-gulp.task("gen-icons-app", (done) => {
-  const iconNames = findIcons("./src", "hass");
-  BUILT_IN_PANEL_ICONS.forEach((name) => iconNames.add(name));
-  if (!fs.existsSync(OUTPUT_DIR)) {
-    fs.mkdirSync(OUTPUT_DIR);
-  }
-  fs.writeFileSync(HASS_OUTPUT_PATH, generateIconset("hass", iconNames));
-  done();
-});
-
-gulp.task("gen-icons-demo", (done) => {
-  const iconNames = findIcons(path.resolve(paths.demo_dir, "./src"), "hademo");
-  fs.writeFileSync(
-    path.resolve(paths.demo_dir, "hademo-icons.html"),
-    generateIconset("hademo", iconNames)
-  );
-  done();
-});
-
-gulp.task("gen-icons-hassio", (done) => {
-  const iconNames = findIcons(
-    path.resolve(paths.hassio_dir, "./src"),
-    "hassio"
-  );
-  // Find hassio icons inside HA main repo.
-  for (const item of findIcons(
-    path.resolve(paths.polymer_dir, "./src"),
-    "hassio"
-  )) {
-    iconNames.add(item);
-  }
-  fs.writeFileSync(
-    path.resolve(paths.hassio_dir, "hassio-icons.html"),
-    generateIconset("hassio", iconNames)
-  );
-  done();
-});

build-scripts/gulp/hassio.js

@@ -1,11 +1,15 @@
 const gulp = require("gulp");
+const fs = require("fs");
+const path = require("path");
 
-const envVars = require("../env");
+const env = require("../env");
+const paths = require("../paths");
 
 require("./clean.js");
-require("./gen-icons.js");
+require("./gen-icons-json.js");
 require("./webpack.js");
 require("./compress.js");
+require("./rollup.js");
 
 gulp.task(
   "develop-hassio",
@@ -14,8 +18,9 @@ gulp.task(
       process.env.NODE_ENV = "development";
     },
     "clean-hassio",
-    gulp.parallel("gen-icons-hassio", "gen-icons-mdi"),
-    "webpack-watch-hassio"
+    "gen-icons-json",
+    "gen-index-hassio-dev",
+    env.useRollup() ? "rollup-watch-hassio" : "webpack-watch-hassio"
   )
 );
 
@@ -26,9 +31,10 @@ gulp.task(
       process.env.NODE_ENV = "production";
     },
     "clean-hassio",
-    gulp.parallel("gen-icons-hassio", "gen-icons-mdi"),
-    "webpack-prod-hassio",
+    "gen-icons-json",
+    env.useRollup() ? "rollup-prod-hassio" : "webpack-prod-hassio",
+    "gen-index-hassio-prod",
     ...// Don't compress running tests
-    (envVars.isTravis() ? [] : ["compress-hassio"])
+    (env.isTest() ? [] : ["compress-hassio"])
   )
 );

build-scripts/gulp/rollup.js

@@ -0,0 +1,146 @@
+// 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 rollupConfig = require("../rollup");
+const paths = require("../paths");
+const open = require("open");
+
+const bothBuilds = (createConfigFunc, params) =>
+  gulp.series(
+    async function buildLatest() {
+      await buildRollup(
+        createConfigFunc({
+          ...params,
+          latestBuild: true,
+        })
+      );
+    },
+    async function buildES5() {
+      await buildRollup(
+        createConfigFunc({
+          ...params,
+          latestBuild: false,
+        })
+      );
+    }
+  );
+
+function createServer(serveOptions) {
+  const server = http.createServer((request, response) => {
+    return handler(request, response, {
+      public: serveOptions.root,
+    });
+  });
+
+  server.listen(
+    serveOptions.port,
+    serveOptions.networkAccess ? "0.0.0.0" : undefined,
+    () => {
+      log.info(`Available at http://localhost:${serveOptions.port}`);
+      open(`http://localhost:${serveOptions.port}`);
+    }
+  );
+}
+
+function watchRollup(createConfig, extraWatchSrc = [], serveOptions) {
+  const { inputOptions, outputOptions } = createConfig({
+    isProdBuild: false,
+    latestBuild: true,
+  });
+
+  const watcher = rollup.watch({
+    ...inputOptions,
+    output: [outputOptions],
+    watch: {
+      include: ["src/**"] + extraWatchSrc,
+    },
+  });
+
+  let startedHttp = false;
+
+  watcher.on("event", (event) => {
+    if (event.code === "BUNDLE_END") {
+      log(`Build done @ ${new Date().toLocaleTimeString()}`);
+    } else if (event.code === "ERROR") {
+      log.error(event.error);
+    } else if (event.code === "END") {
+      if (startedHttp || !serveOptions) {
+        return;
+      }
+      startedHttp = true;
+      createServer(serveOptions);
+    }
+  });
+
+  gulp.watch(
+    path.join(paths.translations_src, "en.json"),
+    gulp.series("build-translations", "copy-translations-app")
+  );
+}
+
+async function buildRollup(config) {
+  const bundle = await rollup.rollup(config.inputOptions);
+  await bundle.write(config.outputOptions);
+}
+
+gulp.task("rollup-watch-app", () => {
+  watchRollup(rollupConfig.createAppConfig);
+});
+
+gulp.task("rollup-watch-hassio", () => {
+  watchRollup(rollupConfig.createHassioConfig, ["hassio/src/**"]);
+});
+
+gulp.task("rollup-dev-server-demo", () => {
+  watchRollup(rollupConfig.createDemoConfig, ["demo/src/**"], {
+    root: paths.demo_output_root,
+    port: 8090,
+  });
+});
+
+gulp.task("rollup-dev-server-cast", () => {
+  watchRollup(rollupConfig.createCastConfig, ["cast/src/**"], {
+    root: paths.cast_output_root,
+    port: 8080,
+    networkAccess: true,
+  });
+});
+
+gulp.task("rollup-dev-server-gallery", () => {
+  watchRollup(rollupConfig.createGalleryConfig, ["gallery/src/**"], {
+    root: paths.gallery_output_root,
+    port: 8100,
+  });
+});
+
+gulp.task(
+  "rollup-prod-app",
+  bothBuilds(rollupConfig.createAppConfig, { isProdBuild: true })
+);
+
+gulp.task(
+  "rollup-prod-demo",
+  bothBuilds(rollupConfig.createDemoConfig, { isProdBuild: true })
+);
+
+gulp.task(
+  "rollup-prod-cast",
+  bothBuilds(rollupConfig.createCastConfig, { isProdBuild: true })
+);
+
+gulp.task("rollup-prod-hassio", () =>
+  bothBuilds(rollupConfig.createHassioConfig, { isProdBuild: true })
+);
+
+gulp.task("rollup-prod-gallery", () =>
+  buildRollup(
+    rollupConfig.createGalleryConfig({
+      isProdBuild: true,
+      latestBuild: true,
+    })
+  )
+);

build-scripts/gulp/service-worker.js

@@ -5,18 +5,22 @@
 const gulp = require("gulp");
 const path = require("path");
 const fs = require("fs-extra");
-const config = require("../paths.js");
+const workboxBuild = require("workbox-build");
+const sourceMapUrl = require("source-map-url");
+const paths = require("../paths.js");
 
-const swPath = path.resolve(config.root, "service_worker.js");
+const swDest = path.resolve(paths.app_output_root, "service_worker.js");
 
-const writeSW = (content) => fs.outputFileSync(swPath, content.trim() + "\n");
+const writeSW = (content) => fs.outputFileSync(swDest, content.trim() + "\n");
 
-gulp.task("gen-service-worker-dev", (done) => {
+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();
 });
   `
@@ -24,10 +28,69 @@ self.addEventListener('install', (event) => {
   done();
 });
 
-gulp.task("gen-service-worker-prod", (done) => {
-  fs.copySync(
-    path.resolve(config.output, "service_worker.js"),
-    path.resolve(config.root, "service_worker.js")
+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"
   );
-  done();
+
+  // 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/translations.js

@@ -14,13 +14,20 @@ const { mapFiles } = require("../util");
 const env = require("../env");
 const paths = require("../paths");
 
-const inDir = "translations";
+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;
 
-String.prototype.rsplit = function(sep, maxsplit) {
+gulp.task("translations-enable-merge-backend", (done) => {
+  mergeBackend = true;
+  done();
+});
+
+String.prototype.rsplit = function (sep, maxsplit) {
   var split = this.split(sep);
   return maxsplit
     ? [split.slice(0, -maxsplit).join(sep)].concat(split.slice(-maxsplit))
@@ -45,7 +52,7 @@ const TRANSLATION_FRAGMENTS = [
 
 function recursiveFlatten(prefix, data) {
   let output = {};
-  Object.keys(data).forEach(function(key) {
+  Object.keys(data).forEach(function (key) {
     if (typeof data[key] === "object") {
       output = {
         ...output,
@@ -107,7 +114,12 @@ function lokaliseTransform(data, original, file) {
       output[key] = lokaliseTransform(value, original, file);
     } else {
       output[key] = value.replace(re_key_reference, (match, key) => {
-        const replace = key.split("::").reduce((tr, k) => tr[k], original);
+        const replace = key.split("::").reduce((tr, k) => {
+          if (!tr) {
+            throw Error(`Invalid key placeholder ${key} in ${file.path}`);
+          }
+          return tr[k];
+        }, original);
         if (typeof replace !== "string") {
           throw Error(`Invalid key placeholder ${key} in ${file.path}`);
         }
@@ -118,7 +130,7 @@ function lokaliseTransform(data, original, file) {
   return output;
 }
 
-gulp.task("clean-translations", function() {
+gulp.task("clean-translations", function () {
   return del([workDir]);
 });
 
@@ -129,7 +141,7 @@ gulp.task("ensure-translations-build-dir", (done) => {
   done();
 });
 
-gulp.task("create-test-metadata", function(cb) {
+gulp.task("create-test-metadata", function (cb) {
   fs.writeFile(
     workDir + "/testMetadata.json",
     JSON.stringify({
@@ -147,7 +159,7 @@ gulp.task(
     return gulp
       .src(path.join(paths.translations_src, "en.json"))
       .pipe(
-        transform(function(data, file) {
+        transform(function (data, file) {
           return recursiveEmpty(data);
         })
       )
@@ -165,28 +177,40 @@ gulp.task(
  * 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", function() {
+gulp.task("build-master-translation", function () {
+  const src = [path.join(paths.translations_src, "en.json")];
+
+  if (mergeBackend) {
+    src.push(path.join(inBackendDir, "en.json"));
+  }
+
   return gulp
-    .src(path.join(paths.translations_src, "en.json"))
+    .src(src)
     .pipe(
-      transform(function(data, file) {
+      transform(function (data, file) {
         return lokaliseTransform(data, data, file);
       })
     )
-    .pipe(rename("translationMaster.json"))
+    .pipe(
+      merge({
+        fileName: "translationMaster.json",
+      })
+    )
     .pipe(gulp.dest(workDir));
 });
 
-gulp.task("build-merged-translations", function() {
+gulp.task("build-merged-translations", function () {
   return gulp
-    .src([inDir + "/*.json", workDir + "/test.json"], { allowEmpty: true })
+    .src([inFrontendDir + "/*.json", workDir + "/test.json"], {
+      allowEmpty: true,
+    })
     .pipe(
-      transform(function(data, file) {
+      transform(function (data, file) {
         return lokaliseTransform(data, data, file);
       })
     )
     .pipe(
-      foreach(function(stream, file) {
+      foreach(function (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
@@ -202,7 +226,10 @@ gulp.task("build-merged-translations", function() {
           if (lang === "test") {
             src.push(workDir + "/test.json");
           } else if (lang !== "en") {
-            src.push(inDir + "/" + lang + ".json");
+            src.push(inFrontendDir + "/" + lang + ".json");
+            if (mergeBackend) {
+              src.push(inBackendDir + "/" + lang + ".json");
+            }
           }
         }
         return gulp
@@ -223,7 +250,7 @@ var taskName;
 const splitTasks = [];
 TRANSLATION_FRAGMENTS.forEach((fragment) => {
   taskName = "build-translation-fragment-" + fragment;
-  gulp.task(taskName, function() {
+  gulp.task(taskName, function () {
     // Return only the translations for this fragment.
     return gulp
       .src(fullDir + "/*.json")
@@ -242,12 +269,12 @@ TRANSLATION_FRAGMENTS.forEach((fragment) => {
 });
 
 taskName = "build-translation-core";
-gulp.task(taskName, function() {
+gulp.task(taskName, function () {
   // Remove the fragment translations from the core translation.
   return gulp
     .src(fullDir + "/*.json")
     .pipe(
-      transform((data) => {
+      transform((data, file) => {
         TRANSLATION_FRAGMENTS.forEach((fragment) => {
           delete data.ui.panel[fragment];
         });
@@ -259,7 +286,7 @@ gulp.task(taskName, function() {
 
 splitTasks.push(taskName);
 
-gulp.task("build-flattened-translations", function() {
+gulp.task("build-flattened-translations", function () {
   // Flatten the split versions of our translations, and move them into outDir
   return gulp
     .src(
@@ -269,7 +296,7 @@ gulp.task("build-flattened-translations", function() {
       { base: workDir }
     )
     .pipe(
-      transform(function(data) {
+      transform(function (data) {
         // Polymer.AppLocalizeBehavior requires flattened json
         return flatten(data);
       })
@@ -351,7 +378,7 @@ gulp.task(
         )
         .pipe(merge({}))
         .pipe(
-          transform(function(data) {
+          transform(function (data) {
             const newData = {};
             Object.entries(data).forEach(([key, value]) => {
               // Filter out translations without native name.

build-scripts/gulp/webpack.js

@@ -28,7 +28,7 @@ const runDevServer = ({
     open: true,
     watchContentBase: true,
     contentBase,
-  }).listen(port, listenHost, function(err) {
+  }).listen(port, listenHost, function (err) {
     if (err) {
       throw err;
     }
@@ -38,9 +38,9 @@ const runDevServer = ({
 
 const handler = (done) => (err, stats) => {
   if (err) {
-    console.log(err.stack || err);
+    log.error(err.stack || err);
     if (err.details) {
-      console.log(err.details);
+      log.error(err.details);
     }
     return;
   }
@@ -48,7 +48,7 @@ const handler = (done) => (err, stats) => {
   log(`Build done @ ${new Date().toLocaleTimeString()}`);
 
   if (stats.hasErrors() || stats.hasWarnings()) {
-    console.log(stats.toString("minimal"));
+    log.warn(stats.toString("minimal"));
   }
 
   if (done) {
@@ -64,7 +64,7 @@ gulp.task("webpack-watch-app", () => {
   );
   gulp.watch(
     path.join(paths.translations_src, "en.json"),
-    gulp.series("build-translations", "copy-translations")
+    gulp.series("build-translations", "copy-translations-app")
   );
 });
 
@@ -82,7 +82,7 @@ gulp.task(
 gulp.task("webpack-dev-server-demo", () => {
   runDevServer({
     compiler: webpack(bothBuilds(createDemoConfig, { isProdBuild: false })),
-    contentBase: paths.demo_root,
+    contentBase: paths.demo_output_root,
     port: 8090,
   });
 });
@@ -103,7 +103,7 @@ gulp.task(
 gulp.task("webpack-dev-server-cast", () => {
   runDevServer({
     compiler: webpack(bothBuilds(createCastConfig, { isProdBuild: false })),
-    contentBase: paths.cast_root,
+    contentBase: paths.cast_output_root,
     port: 8080,
     // Accessible from the network, because that's how Cast hits it.
     listenHost: "0.0.0.0",
@@ -129,7 +129,7 @@ gulp.task("webpack-watch-hassio", () => {
   webpack(
     createHassioConfig({
       isProdBuild: false,
-      latestBuild: false,
+      latestBuild: true,
     })
   ).watch({}, handler());
 });
@@ -139,9 +139,8 @@ gulp.task(
   () =>
     new Promise((resolve) =>
       webpack(
-        createHassioConfig({
+        bothBuilds(createHassioConfig, {
           isProdBuild: true,
-          latestBuild: false,
         }),
         handler(resolve)
       )
@@ -150,10 +149,9 @@ gulp.task(
 
 gulp.task("webpack-dev-server-gallery", () => {
   runDevServer({
-    compiler: webpack(
-      createGalleryConfig({ latestBuild: true, isProdBuild: false })
-    ),
-    contentBase: paths.gallery_root,
+    // 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 })),
+    contentBase: paths.gallery_output_root,
     port: 8100,
   });
 });

build-scripts/paths.js

@@ -4,31 +4,42 @@ module.exports = {
   polymer_dir: path.resolve(__dirname, ".."),
 
   build_dir: path.resolve(__dirname, "../build"),
-  root: path.resolve(__dirname, "../hass_frontend"),
-  static: path.resolve(__dirname, "../hass_frontend/static"),
-  output: path.resolve(__dirname, "../hass_frontend/frontend_latest"),
-  output_es5: path.resolve(__dirname, "../hass_frontend/frontend_es5"),
+  app_output_root: path.resolve(__dirname, "../hass_frontend"),
+  app_output_static: path.resolve(__dirname, "../hass_frontend/static"),
+  app_output_latest: path.resolve(
+    __dirname,
+    "../hass_frontend/frontend_latest"
+  ),
+  app_output_es5: path.resolve(__dirname, "../hass_frontend/frontend_es5"),
 
   demo_dir: path.resolve(__dirname, "../demo"),
-  demo_root: path.resolve(__dirname, "../demo/dist"),
-  demo_static: path.resolve(__dirname, "../demo/dist/static"),
-  demo_output: path.resolve(__dirname, "../demo/dist/frontend_latest"),
+  demo_output_root: path.resolve(__dirname, "../demo/dist"),
+  demo_output_static: path.resolve(__dirname, "../demo/dist/static"),
+  demo_output_latest: path.resolve(__dirname, "../demo/dist/frontend_latest"),
   demo_output_es5: path.resolve(__dirname, "../demo/dist/frontend_es5"),
 
   cast_dir: path.resolve(__dirname, "../cast"),
-  cast_root: path.resolve(__dirname, "../cast/dist"),
-  cast_static: path.resolve(__dirname, "../cast/dist/static"),
-  cast_output: path.resolve(__dirname, "../cast/dist/frontend_latest"),
+  cast_output_root: path.resolve(__dirname, "../cast/dist"),
+  cast_output_static: path.resolve(__dirname, "../cast/dist/static"),
+  cast_output_latest: path.resolve(__dirname, "../cast/dist/frontend_latest"),
   cast_output_es5: path.resolve(__dirname, "../cast/dist/frontend_es5"),
 
   gallery_dir: path.resolve(__dirname, "../gallery"),
-  gallery_root: path.resolve(__dirname, "../gallery/dist"),
-  gallery_output: path.resolve(__dirname, "../gallery/dist/frontend_latest"),
-  gallery_static: path.resolve(__dirname, "../gallery/dist/static"),
+  gallery_output_root: path.resolve(__dirname, "../gallery/dist"),
+  gallery_output_latest: path.resolve(
+    __dirname,
+    "../gallery/dist/frontend_latest"
+  ),
+  gallery_output_static: path.resolve(__dirname, "../gallery/dist/static"),
 
   hassio_dir: path.resolve(__dirname, "../hassio"),
-  hassio_root: path.resolve(__dirname, "../hassio/build"),
-  hassio_publicPath: "/api/hassio/app/",
+  hassio_output_root: path.resolve(__dirname, "../hassio/build"),
+  hassio_output_latest: path.resolve(
+    __dirname,
+    "../hassio/build/frontend_latest"
+  ),
+  hassio_output_es5: path.resolve(__dirname, "../hassio/build/frontend_es5"),
+  hassio_publicPath: "/api/hassio/app",
 
   translations_src: path.resolve(__dirname, "../src/translations"),
 };

build-scripts/removedIcons.json

@@ -0,0 +1,263 @@
+[
+  {
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+    "path": "M17.71,9.33C18.19,8.93 18.75,8.45 19,7.92C18.59,8.13 18.1,8.26 17.56,8.33C18.06,7.97 18.47,7.5 18.68,6.86C18.16,7.14 17.63,7.38 16.97,7.5C15.42,5.63 11.71,7.15 12.37,9.95C9.76,9.79 8.17,8.61 6.85,7.16C6.1,8.38 6.75,10.23 7.64,10.74C7.18,10.71 6.83,10.57 6.5,10.41C6.54,11.95 7.39,12.69 8.58,13.09C8.22,13.16 7.82,13.18 7.44,13.12C7.81,14.19 8.58,14.86 9.9,15C9,15.76 7.34,16.29 6,16.08C7.15,16.81 8.46,17.39 10.28,17.31C14.69,17.11 17.64,13.95 17.71,9.33M12,2A10,10 0 0,1 22,12A10,10 0 0,1 12,22A10,10 0 0,1 2,12A10,10 0 0,1 12,2Z",
+    "name": "twitter-circle"
+  },
+  {
+    "path": "M6.38,13.24V13.24C6.38,11.84 6.38,10.44 6.38,9.04H7.4V15.84H6.39C6.39,15.63 6.39,15.42 6.39,15.21C5.93,15.68 5.29,15.96 4.58,15.96C3.12,15.96 2,14.9 2,13.3V9.04H3V13.24C3,14.33 3.74,15.04 4.7,15.04C5.64,15.04 6.38,14.31 6.38,13.24M9.14,9.04V11.5C9.37,11.29 9.65,11.1 9.95,10.97C10.25,10.85 10.58,10.78 10.91,10.78C12.37,10.78 13.5,11.94 13.5,13.37C13.5,14.8 12.37,15.96 10.91,15.96C10.58,15.96 10.25,15.89 9.95,15.77C9.64,15.64 9.37,15.45 9.13,15.22C9.13,15.43 9.13,15.63 9.13,15.84C8.81,15.84 8.5,15.84 8.16,15.84V9.04H9.14M12.55,13.37V13.37C12.55,12.41 11.77,11.65 10.84,11.65C9.89,11.65 9.13,12.41 9.13,13.37C9.13,14.32 9.88,15.09 10.84,15.09C11.77,15.09 12.55,14.32 12.55,13.37M16.46,10.79C17.9,10.79 18.95,11.89 18.95,13.36V13.69H14.91C15.04,14.5 15.71,15.09 16.55,15.09C17.13,15.09 17.61,14.86 18,14.36L18.7,14.89C18.2,15.55 17.46,15.95 16.55,15.95C15.06,15.95 13.91,14.84 13.91,13.36C13.91,11.97 15,10.79 16.46,10.79M14.92,12.91H17.95C17.79,12.15 17.18,11.65 16.44,11.65C15.71,11.65 15.1,12.15 14.92,12.91M20.5,13V15.84H19.5V10.89C19.82,10.89 20.14,10.89 20.47,10.89V11.5C20.71,11.1 21.11,10.85 21.66,10.85H22V11.76H21.59C20.95,11.76 20.5,12.26 20.5,13",
+    "name": "uber"
+  },
+  {
+    "path": "M19.5,3C20.14,4.08 20.44,5.19 20.44,6.6C20.44,11.08 16.61,16.91 13.5,21H6.41L3.56,4L9.77,3.39L11.28,15.5C12.69,13.21 14.42,9.61 14.42,7.16C14.42,5.81 14.19,4.9 13.83,4.15L19.5,3Z",
+    "name": "venmo"
+  },
+  {
+    "path": "M5,3A2,2 0 0,0 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V5A2,2 0 0,0 19,3H5M5.5,8.5H7C7.36,8.5 7.5,8.66 7.64,9.07C8.36,11.17 9.57,13 10.07,13C10.26,13 10.35,12.92 10.35,12.45V10.28C10.29,9.28 9.76,9.19 9.76,8.84C9.76,8.67 9.9,8.5 10.14,8.5H12.45C12.77,8.5 12.87,8.67 12.87,9.04V11.96C12.87,12.27 13,12.38 13.1,12.38C13.29,12.38 13.45,12.27 13.79,11.93C14.85,10.74 15.6,8.92 15.6,8.92C15.7,8.7 15.87,8.5 16.24,8.5H17.71C18.16,8.5 18.26,8.73 18.16,9.04C17.97,9.9 16.18,12.43 16.18,12.43C16,12.68 15.96,12.8 16.18,13.09C16.33,13.3 16.85,13.74 17.19,14.15C17.83,14.86 18.3,15.46 18.44,15.87C18.56,16.29 18.35,16.5 17.93,16.5H16.45C15.89,16.5 15.73,16.05 14.73,15.05C13.85,14.21 13.5,14.1 13.26,14.1C12.96,14.1 12.87,14.18 12.87,14.61V15.93C12.87,16.29 12.76,16.5 11.82,16.5C10.26,16.5 8.54,15.55 7.33,13.8C5.5,11.24 5,9.31 5,8.92C5,8.7 5.08,8.5 5.5,8.5Z",
+    "name": "vk-box"
+  },
+  {
+    "path": "M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2M5.5,8.5H7C7.36,8.5 7.5,8.66 7.64,9.07C8.36,11.17 9.57,13 10.07,13C10.26,13 10.35,12.92 10.35,12.45V10.28C10.29,9.28 9.76,9.19 9.76,8.84C9.76,8.67 9.9,8.5 10.14,8.5H12.45C12.77,8.5 12.87,8.67 12.87,9.04V11.96C12.87,12.27 13,12.38 13.1,12.38C13.29,12.38 13.45,12.27 13.79,11.93C14.85,10.74 15.6,8.92 15.6,8.92C15.7,8.7 15.87,8.5 16.24,8.5H17.71C18.16,8.5 18.26,8.73 18.16,9.04C17.97,9.9 16.18,12.43 16.18,12.43C16,12.68 15.96,12.8 16.18,13.09C16.33,13.3 16.85,13.74 17.19,14.15C17.83,14.86 18.3,15.46 18.44,15.87C18.56,16.29 18.35,16.5 17.93,16.5H16.45C15.89,16.5 15.73,16.05 14.73,15.05C13.85,14.21 13.5,14.1 13.26,14.1C12.96,14.1 12.87,14.18 12.87,14.61V15.93C12.87,16.29 12.76,16.5 11.82,16.5C10.26,16.5 8.54,15.55 7.33,13.8C5.5,11.24 5,9.31 5,8.92C5,8.7 5.08,8.5 5.5,8.5Z",
+    "name": "vk-circle"
+  },
+  {
+    "path": "M17,17.5L12,15L7,17.5V5H5V19H19V5H17V17.5M12,12.42L14.25,13.77L13.65,11.22L15.64,9.5L13,9.27L12,6.86L11,9.27L8.36,9.5L10.35,11.22L9.75,13.77L12,12.42M5,3H19A2,2 0 0,1 21,5V19A2,2 0 0,1 19,21H5A2,2 0 0,1 3,19V5A2,2 0 0,1 5,3Z",
+    "name": "wunderlist"
+  },
+  {
+    "path": "M0 16.7L3.2 12.9L0 9.1L1.5 7.8L4.5 11.3L7.5 7.8L9 9.1L5.8 12.9L9 16.7L7.5 18L4.5 14.4L1.5 18L0 16.7M24 16.9C24 17.4 23.6 17.9 23 17.9H20C18.9 17.9 18 17 18 15.9V13.9C18 12.8 18.9 11.9 20 11.9H22V9.9H18V8H23C23.5 8 24 8.4 24 9M22 14H20V16H22V14M16 16.9C16 17.4 15.6 17.9 15 17.9H12C10.9 17.9 10 17 10 15.9V9.9C10 8.8 10.9 7.9 12 7.9H14V5H16V16.9M14 15.9V9.9H12V15.9H14Z",
+    "name": "xda"
+  },
+  {
+    "path": "M4.8,3C3.8,3 3,3.8 3,4.8V19.2C3,20.2 3.8,21 4.8,21H19.2C20.2,21 21,20.2 21,19.2V4.8C21,3.8 20.2,3 19.2,3M16.07,5H18.11C18.23,5 18.33,5.04 18.37,5.13C18.43,5.22 18.43,5.33 18.37,5.44L13.9,13.36L16.75,18.56C16.81,18.67 16.81,18.78 16.75,18.87C16.7,18.95 16.61,19 16.5,19H14.47C14.16,19 14,18.79 13.91,18.61L11.04,13.35C11.18,13.1 15.53,5.39 15.53,5.39C15.64,5.19 15.77,5 16.07,5M7.09,7.76H9.1C9.41,7.76 9.57,7.96 9.67,8.15L11.06,10.57C10.97,10.71 8.88,14.42 8.88,14.42C8.77,14.61 8.63,14.81 8.32,14.81H6.3C6.18,14.81 6.09,14.76 6.04,14.67C6,14.59 6,14.47 6.04,14.36L8.18,10.57L6.82,8.2C6.77,8.09 6.75,8 6.81,7.89C6.86,7.81 6.96,7.76 7.09,7.76Z",
+    "name": "xing-box"
+  },
+  {
+    "path": "M12,2A10,10 0 0,0 2,12A10,10 0 0,0 12,22A10,10 0 0,0 22,12A10,10 0 0,0 12,2M15.85,6H17.74C17.86,6 17.94,6.04 18,6.12C18.04,6.2 18.04,6.3 18,6.41L13.84,13.76L16.5,18.59C16.53,18.69 16.53,18.8 16.5,18.88C16.43,18.96 16.35,19 16.24,19H14.36C14.07,19 13.93,18.81 13.84,18.64L11.17,13.76C11.31,13.5 15.35,6.36 15.35,6.36C15.45,6.18 15.57,6 15.85,6M7.5,8.57H9.39C9.67,8.57 9.81,8.75 9.9,8.92L11.19,11.17C11.12,11.3 9.17,14.75 9.17,14.75C9.07,14.92 8.94,15.11 8.66,15.11H6.78C6.67,15.11 6.59,15.06 6.54,15C6.5,14.9 6.5,14.8 6.54,14.69L8.53,11.17L7.27,9C7.21,8.87 7.2,8.77 7.25,8.69C7.3,8.61 7.39,8.57 7.5,8.57Z",
+    "name": "xing-circle"
+  },
+  {
+    "path": "M10.59,2C11.23,2 11.5,2.27 11.58,2.97L11.79,6.14L12.03,10.29C12.05,10.64 12,11 11.86,11.32C11.64,11.77 11.14,11.89 10.73,11.58C10.5,11.39 10.31,11.14 10.15,10.87L6.42,4.55C6.06,3.94 6.17,3.54 6.77,3.16C7.5,2.68 9.73,2 10.59,2M14.83,14.85L15.09,14.91L18.95,16.31C19.61,16.55 19.79,16.92 19.5,17.57C19.06,18.7 18.34,19.66 17.42,20.45C16.96,20.85 16.5,20.78 16.21,20.28L13.94,16.32C13.55,15.61 14.03,14.8 14.83,14.85M4.5,14C4.5,13.26 4.5,12.55 4.75,11.87C4.97,11.2 5.33,11 6,11.27L9.63,12.81C10.09,13 10.35,13.32 10.33,13.84C10.3,14.36 9.97,14.58 9.53,14.73L5.85,15.94C5.15,16.17 4.79,15.96 4.64,15.25C4.55,14.83 4.47,14.4 4.5,14M11.97,21C11.95,21.81 11.6,22.12 10.81,22C9.77,21.8 8.81,21.4 7.96,20.76C7.54,20.44 7.45,19.95 7.76,19.53L10.47,15.97C10.7,15.67 11.03,15.6 11.39,15.74C11.77,15.88 11.97,16.18 11.97,16.59V21M14.45,13.32C13.73,13.33 13.23,12.5 13.64,11.91C14.47,10.67 15.35,9.46 16.23,8.26C16.5,7.85 16.94,7.82 17.31,8.16C18.24,9 18.91,10 19.29,11.22C19.43,11.67 19.25,12.08 18.83,12.2L15.09,13.17L14.45,13.32Z",
+    "name": "yelp"
+  }
+]

build-scripts/rollup-plugins/dont-hash-plugin.js

@@ -0,0 +1,14 @@
+module.exports = function (opts = {}) {
+  const dontHash = opts.dontHash || new Set();
+
+  return {
+    name: "dont-hash",
+    renderChunk(_code, chunk, _options) {
+      if (!chunk.isEntry || !dontHash.has(chunk.name)) {
+        return null;
+      }
+      chunk.fileName = `${chunk.name}.js`;
+      return null;
+    },
+  };
+};

build-scripts/rollup-plugins/ignore-plugin.js

@@ -0,0 +1,26 @@
+const path = require("path");
+
+module.exports = function (userOptions = {}) {
+  // Files need to be absolute paths.
+  // This only works if the file has no exports
+  // and only is imported for its side effects
+  const files = userOptions.files || [];
+
+  if (files.length === 0) {
+    return {
+      name: "ignore",
+    };
+  }
+
+  return {
+    name: "ignore",
+
+    load(id) {
+      return files.some((toIgnorePath) => id.startsWith(toIgnorePath))
+        ? {
+            code: "",
+          }
+        : null;
+    },
+  };
+};

build-scripts/rollup-plugins/manifest-plugin.js

@@ -0,0 +1,34 @@
+const url = require("url");
+
+const defaultOptions = {
+  publicPath: "",
+};
+
+module.exports = function (userOptions = {}) {
+  const options = { ...defaultOptions, ...userOptions };
+
+  return {
+    name: "manifest",
+    generateBundle(outputOptions, bundle) {
+      const manifest = {};
+
+      for (const chunk of Object.values(bundle)) {
+        if (!chunk.isEntry) {
+          continue;
+        }
+        // Add js extension to mimic Webpack manifest.
+        manifest[`${chunk.name}.js`] = url.resolve(
+          options.publicPath,
+          chunk.fileName
+        );
+      }
+
+      this.emitFile({
+        type: "asset",
+        source: JSON.stringify(manifest, undefined, 2),
+        name: "manifest.json",
+        fileName: "manifest.json",
+      });
+    },
+  };
+};

build-scripts/rollup-plugins/worker-plugin.js

@@ -0,0 +1,149 @@
+// Worker plugin
+// Each worker will include all of its dependencies
+// instead of relying on an importer.
+
+// Forked from v.1.4.1
+// https://github.com/surma/rollup-plugin-off-main-thread
+/**
+ * Copyright 2018 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+const rollup = require("rollup");
+const path = require("path");
+const MagicString = require("magic-string");
+
+const defaultOpts = {
+  // A RegExp to find `new Workers()` calls. The second capture group _must_
+  // capture the provided file name without the quotes.
+  workerRegexp: /new Worker\((["'])(.+?)\1(,[^)]+)?\)/g,
+  plugins: ["node-resolve", "commonjs", "babel", "terser", "ignore"],
+};
+
+async function getBundledWorker(workerPath, rollupOptions) {
+  const bundle = await rollup.rollup({
+    ...rollupOptions,
+    input: {
+      worker: workerPath,
+    },
+  });
+  const { output } = await bundle.generate({
+    // Generates cleanest output, we shouldn't have any imports/exports
+    // that would be incompatible with ES5.
+    format: "es",
+    // We should not export anything. This will fail build if we are.
+    exports: "none",
+  });
+
+  let code;
+
+  for (const chunkOrAsset of output) {
+    if (chunkOrAsset.name === "worker") {
+      code = chunkOrAsset.code;
+    } else if (chunkOrAsset.type !== "asset") {
+      throw new Error("Unexpected extra output");
+    }
+  }
+
+  return code;
+}
+
+module.exports = function (opts = {}) {
+  opts = { ...defaultOpts, ...opts };
+
+  let rollupOptions;
+  let refIds;
+
+  return {
+    name: "hass-worker",
+
+    async buildStart(options) {
+      refIds = {};
+      rollupOptions = {
+        plugins: options.plugins.filter((plugin) =>
+          opts.plugins.includes(plugin.name)
+        ),
+      };
+    },
+
+    async transform(code, id) {
+      // Copy the regexp as they are stateful and this hook is async.
+      const workerRegexp = new RegExp(
+        opts.workerRegexp.source,
+        opts.workerRegexp.flags
+      );
+      if (!workerRegexp.test(code)) {
+        return;
+      }
+
+      const ms = new MagicString(code);
+      // Reset the regexp
+      workerRegexp.lastIndex = 0;
+      while (true) {
+        const match = workerRegexp.exec(code);
+        if (!match) {
+          break;
+        }
+
+        const workerFile = match[2];
+        let optionsObject = {};
+        // Parse the optional options object
+        if (match[3] && match[3].length > 0) {
+          // FIXME: ooooof!
+          optionsObject = new Function(`return ${match[3].slice(1)};`)();
+        }
+        delete optionsObject.type;
+
+        if (!new RegExp("^.*/").test(workerFile)) {
+          this.warn(
+            `Paths passed to the Worker constructor must be relative or absolute, i.e. start with /, ./ or ../ (just like dynamic import!). Ignoring "${workerFile}".`
+          );
+          continue;
+        }
+
+        // Find worker file and store it as a chunk with ID prefixed for our loader
+        const resolvedWorkerFile = (await this.resolve(workerFile, id)).id;
+        let chunkRefId;
+        if (resolvedWorkerFile in refIds) {
+          chunkRefId = refIds[resolvedWorkerFile];
+        } else {
+          this.addWatchFile(resolvedWorkerFile);
+          const source = await getBundledWorker(
+            resolvedWorkerFile,
+            rollupOptions
+          );
+          chunkRefId = refIds[resolvedWorkerFile] = this.emitFile({
+            name: path.basename(resolvedWorkerFile),
+            source,
+            type: "asset",
+          });
+        }
+
+        const workerParametersStartIndex = match.index + "new Worker(".length;
+        const workerParametersEndIndex =
+          match.index + match[0].length - ")".length;
+
+        ms.overwrite(
+          workerParametersStartIndex,
+          workerParametersEndIndex,
+          `import.meta.ROLLUP_FILE_URL_${chunkRefId}, ${JSON.stringify(
+            optionsObject
+          )}`
+        );
+      }
+
+      return {
+        code: ms.toString(),
+        map: ms.generateMap({ hires: true }),
+      };
+    },
+  };
+};

build-scripts/rollup.js

@@ -0,0 +1,151 @@
+const path = require("path");
+
+const commonjs = require("@rollup/plugin-commonjs");
+const resolve = require("@rollup/plugin-node-resolve");
+const json = require("@rollup/plugin-json");
+const babel = require("rollup-plugin-babel");
+const replace = require("@rollup/plugin-replace");
+const visualizer = require("rollup-plugin-visualizer");
+const { string } = require("rollup-plugin-string");
+const { terser } = require("rollup-plugin-terser");
+const manifest = require("./rollup-plugins/manifest-plugin");
+const worker = require("./rollup-plugins/worker-plugin");
+const dontHashPlugin = require("./rollup-plugins/dont-hash-plugin");
+const ignore = require("./rollup-plugins/ignore-plugin");
+
+const bundle = require("./bundle");
+const paths = require("./paths");
+
+const extensions = [".js", ".ts"];
+
+/**
+ * @param {Object} arg
+ * @param { import("rollup").InputOption } arg.input
+ */
+const createRollupConfig = ({
+  entry,
+  outputPath,
+  defineOverlay,
+  isProdBuild,
+  latestBuild,
+  isStatsBuild,
+  publicPath,
+  dontHash,
+}) => {
+  return {
+    /**
+     * @type { import("rollup").InputOptions }
+     */
+    inputOptions: {
+      input: entry,
+      // Some entry points contain no JavaScript. This setting silences a warning about that.
+      // https://rollupjs.org/guide/en/#preserveentrysignatures
+      preserveEntrySignatures: false,
+      plugins: [
+        ignore({
+          files: bundle.emptyPackages({ latestBuild }),
+        }),
+        resolve({
+          extensions,
+          preferBuiltins: false,
+          browser: true,
+          rootDir: paths.polymer_dir,
+        }),
+        commonjs({
+          namedExports: {
+            "js-yaml": ["safeDump", "safeLoad"],
+          },
+        }),
+        json(),
+        babel({
+          ...bundle.babelOptions({ latestBuild }),
+          extensions,
+          exclude: bundle.babelExclude(),
+        }),
+        string({
+          // Import certain extensions as strings
+          include: [path.join(paths.polymer_dir, "node_modules/**/*.css")],
+        }),
+        replace(
+          bundle.definedVars({ isProdBuild, latestBuild, defineOverlay })
+        ),
+        manifest({
+          publicPath,
+        }),
+        worker(),
+        dontHashPlugin({ dontHash }),
+        isProdBuild && terser(bundle.terserOptions(latestBuild)),
+        isStatsBuild &&
+          visualizer({
+            // https://github.com/btd/rollup-plugin-visualizer#options
+            open: true,
+            sourcemap: true,
+          }),
+      ],
+    },
+    /**
+     * @type { import("rollup").OutputOptions }
+     */
+    outputOptions: {
+      // https://rollupjs.org/guide/en/#outputdir
+      dir: outputPath,
+      // https://rollupjs.org/guide/en/#outputformat
+      format: latestBuild ? "es" : "systemjs",
+      // https://rollupjs.org/guide/en/#outputexternallivebindings
+      externalLiveBindings: false,
+      // https://rollupjs.org/guide/en/#outputentryfilenames
+      // https://rollupjs.org/guide/en/#outputchunkfilenames
+      // https://rollupjs.org/guide/en/#outputassetfilenames
+      entryFileNames:
+        isProdBuild && !isStatsBuild ? "[name]-[hash].js" : "[name].js",
+      chunkFileNames:
+        isProdBuild && !isStatsBuild ? "c.[hash].js" : "[name].js",
+      assetFileNames:
+        isProdBuild && !isStatsBuild ? "a.[hash].js" : "[name].js",
+      // https://rollupjs.org/guide/en/#outputsourcemap
+      sourcemap: isProdBuild ? true : "inline",
+    },
+  };
+};
+
+const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
+  return createRollupConfig(
+    bundle.config.app({
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+    })
+  );
+};
+
+const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
+  return createRollupConfig(
+    bundle.config.demo({
+      isProdBuild,
+      latestBuild,
+      isStatsBuild,
+    })
+  );
+};
+
+const createCastConfig = ({ isProdBuild, latestBuild }) => {
+  return createRollupConfig(bundle.config.cast({ isProdBuild, latestBuild }));
+};
+
+const createHassioConfig = ({ isProdBuild, latestBuild }) => {
+  return createRollupConfig(bundle.config.hassio({ isProdBuild, latestBuild }));
+};
+
+const createGalleryConfig = ({ isProdBuild, latestBuild }) => {
+  return createRollupConfig(
+    bundle.config.gallery({ isProdBuild, latestBuild })
+  );
+};
+
+module.exports = {
+  createAppConfig,
+  createDemoConfig,
+  createCastConfig,
+  createHassioConfig,
+  createGalleryConfig,
+};

build-scripts/webpack.js

@@ -1,23 +1,15 @@
 const webpack = require("webpack");
-const fs = require("fs");
 const path = require("path");
 const TerserPlugin = require("terser-webpack-plugin");
-const WorkboxPlugin = require("workbox-webpack-plugin");
 const ManifestPlugin = require("webpack-manifest-plugin");
+const WorkerPlugin = require("worker-plugin");
 const paths = require("./paths.js");
-const { babelLoaderConfig } = require("./babel.js");
-
-let version = fs
-  .readFileSync(path.resolve(paths.polymer_dir, "setup.py"), "utf8")
-  .match(/\d{8}\.\d+/);
-if (!version) {
-  throw Error("Version not found");
-}
-version = version[0];
+const bundle = require("./bundle");
 
 const createWebpackConfig = ({
   entry,
-  outputRoot,
+  outputPath,
+  publicPath,
   defineOverlay,
   isProdBuild,
   latestBuild,
@@ -27,26 +19,28 @@ const createWebpackConfig = ({
   if (!dontHash) {
     dontHash = new Set();
   }
+  const ignorePackages = bundle.ignorePackages({ latestBuild });
   return {
     mode: isProdBuild ? "production" : "development",
-    devtool: isProdBuild ? "source-map" : "inline-cheap-module-source-map",
+    devtool: isProdBuild
+      ? "cheap-module-source-map"
+      : "eval-cheap-module-source-map",
     entry,
+    node: false,
     module: {
       rules: [
-        babelLoaderConfig({ latestBuild }),
+        {
+          test: /\.js$|\.ts$/,
+          exclude: bundle.babelExclude(),
+          use: {
+            loader: "babel-loader",
+            options: bundle.babelOptions({ latestBuild }),
+          },
+        },
         {
           test: /\.css$/,
           use: "raw-loader",
         },
-        {
-          test: /\.(html)$/,
-          use: {
-            loader: "html-loader",
-            options: {
-              exportAsEs6Default: true,
-            },
-          },
-        },
       ],
     },
     optimization: {
@@ -56,54 +50,58 @@ const createWebpackConfig = ({
           parallel: true,
           extractComments: true,
           sourceMap: true,
-          terserOptions: {
-            safari10: true,
-            ecma: latestBuild ? undefined : 5,
-          },
+          terserOptions: bundle.terserOptions(latestBuild),
         }),
       ],
     },
     plugins: [
-      new ManifestPlugin(),
-      new webpack.DefinePlugin({
-        __DEV__: !isProdBuild,
-        __BUILD__: JSON.stringify(latestBuild ? "latest" : "es5"),
-        __VERSION__: JSON.stringify(version),
-        __DEMO__: false,
-        __STATIC_PATH__: "/static/",
-        "process.env.NODE_ENV": JSON.stringify(
-          isProdBuild ? "production" : "development"
-        ),
-        ...defineOverlay,
+      new WorkerPlugin(),
+      new ManifestPlugin({
+        // Only include the JS of entrypoints
+        filter: (file) => file.isInitial && !file.name.endsWith(".map"),
+      }),
+      new webpack.DefinePlugin(
+        bundle.definedVars({ isProdBuild, latestBuild, defineOverlay })
+      ),
+      new webpack.IgnorePlugin({
+        checkResource(resource, context) {
+          // Only use ignore to intercept imports that we don't control
+          // inside node_module dependencies.
+          if (
+            !context.includes("/node_modules/") ||
+            // calling define.amd will call require("!!webpack amd options")
+            resource.startsWith("!!webpack") ||
+            // loaded by webpack dev server but doesn't exist.
+            resource === "webpack/hot"
+          ) {
+            return false;
+          }
+          let fullPath;
+          try {
+            fullPath = resource.startsWith(".")
+              ? path.resolve(context, resource)
+              : require.resolve(resource);
+          } catch (err) {
+            console.error(
+              "Error in Home Assistant ignore plugin",
+              resource,
+              context
+            );
+            throw err;
+          }
+
+          return ignorePackages.some((toIgnorePath) =>
+            fullPath.startsWith(toIgnorePath)
+          );
+        },
       }),
-      // Ignore moment.js locales
-      new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
-      // Color.js is bloated, it contains all color definitions for all material color sets.
       new webpack.NormalModuleReplacementPlugin(
-        /@polymer\/paper-styles\/color\.js$/,
+        new RegExp(bundle.emptyPackages({ latestBuild }).join("|")),
         path.resolve(paths.polymer_dir, "src/util/empty.js")
       ),
-      // Ignore roboto pointing at CDN. We use local font-roboto-local.
-      new webpack.NormalModuleReplacementPlugin(
-        /@polymer\/font-roboto\/roboto\.js$/,
-        path.resolve(paths.polymer_dir, "src/util/empty.js")
-      ),
-      // Ignore mwc icons pointing at CDN.
-      new webpack.NormalModuleReplacementPlugin(
-        /@material\/mwc-icon\/mwc-icon-font\.js$/,
-        path.resolve(paths.polymer_dir, "src/util/empty.js")
-      ),
-    ].filter(Boolean),
+    ],
     resolve: {
       extensions: [".ts", ".js", ".json"],
-      alias: {
-        react: "preact-compat",
-        "react-dom": "preact-compat",
-        // Not necessary unless you consume a module using `createClass`
-        "create-react-class": "preact-compat/lib/create-react-class",
-        // Not necessary unless you consume a module requiring `react-dom-factories`
-        "react-dom-factories": "preact-compat/lib/react-dom-factories",
-      },
     },
     output: {
       filename: ({ chunk }) => {
@@ -116,148 +114,40 @@ const createWebpackConfig = ({
         isProdBuild && !isStatsBuild
           ? "chunk.[chunkhash].js"
           : "[name].chunk.js",
-      path: path.resolve(
-        outputRoot,
-        latestBuild ? "frontend_latest" : "frontend_es5"
-      ),
-      publicPath: latestBuild ? "/frontend_latest/" : "/frontend_es5/",
-      // For workerize loader
+      path: outputPath,
+      publicPath,
+      // To silence warning in worker plugin
       globalObject: "self",
     },
   };
 };
 
 const createAppConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  const config = createWebpackConfig({
-    entry: {
-      app: "./src/entrypoints/app.ts",
-      authorize: "./src/entrypoints/authorize.ts",
-      onboarding: "./src/entrypoints/onboarding.ts",
-      core: "./src/entrypoints/core.ts",
-      compatibility: "./src/entrypoints/compatibility.ts",
-      "custom-panel": "./src/entrypoints/custom-panel.ts",
-      "hass-icons": "./src/entrypoints/hass-icons.ts",
-    },
-    outputRoot: paths.root,
-    isProdBuild,
-    latestBuild,
-    isStatsBuild,
-  });
-
-  if (latestBuild) {
-    // Create an object mapping browser urls to their paths during build
-    const translationMetadata = require("../build-translations/translationMetadata.json");
-    const workBoxTranslationsTemplatedURLs = {};
-    const englishFilename = `en-${translationMetadata.translations.en.hash}.json`;
-
-    // core
-    workBoxTranslationsTemplatedURLs[
-      `/static/translations/${englishFilename}`
-    ] = `build-translations/output/${englishFilename}`;
-
-    translationMetadata.fragments.forEach((fragment) => {
-      workBoxTranslationsTemplatedURLs[
-        `/static/translations/${fragment}/${englishFilename}`
-      ] = `build-translations/output/${fragment}/${englishFilename}`;
-    });
-
-    config.plugins.push(
-      new WorkboxPlugin.InjectManifest({
-        swSrc: "./src/entrypoints/service-worker-hass.js",
-        swDest: "service_worker.js",
-        importWorkboxFrom: "local",
-        include: [/\.js$/],
-        templatedURLs: {
-          ...workBoxTranslationsTemplatedURLs,
-          "/static/icons/favicon-192x192.png":
-            "public/icons/favicon-192x192.png",
-          "/static/fonts/roboto/Roboto-Light.woff2":
-            "node_modules/roboto-fontface/fonts/roboto/Roboto-Light.woff2",
-          "/static/fonts/roboto/Roboto-Medium.woff2":
-            "node_modules/roboto-fontface/fonts/roboto/Roboto-Medium.woff2",
-          "/static/fonts/roboto/Roboto-Regular.woff2":
-            "node_modules/roboto-fontface/fonts/roboto/Roboto-Regular.woff2",
-          "/static/fonts/roboto/Roboto-Bold.woff2":
-            "node_modules/roboto-fontface/fonts/roboto/Roboto-Bold.woff2",
-        },
-      })
-    );
-  }
-
-  return config;
+  return createWebpackConfig(
+    bundle.config.app({ isProdBuild, latestBuild, isStatsBuild })
+  );
 };
 
 const createDemoConfig = ({ isProdBuild, latestBuild, isStatsBuild }) => {
-  return createWebpackConfig({
-    entry: {
-      main: path.resolve(paths.demo_dir, "src/entrypoint.ts"),
-      compatibility: path.resolve(
-        paths.polymer_dir,
-        "src/entrypoints/compatibility.ts"
-      ),
-    },
-    outputRoot: paths.demo_root,
-    defineOverlay: {
-      __VERSION__: JSON.stringify(`DEMO-${version}`),
-      __DEMO__: true,
-    },
-    isProdBuild,
-    latestBuild,
-    isStatsBuild,
-  });
+  return createWebpackConfig(
+    bundle.config.demo({ isProdBuild, latestBuild, isStatsBuild })
+  );
 };
 
 const createCastConfig = ({ isProdBuild, latestBuild }) => {
-  const entry = {
-    launcher: path.resolve(paths.cast_dir, "src/launcher/entrypoint.ts"),
-  };
-
-  if (latestBuild) {
-    entry.receiver = path.resolve(paths.cast_dir, "src/receiver/entrypoint.ts");
-  }
-
-  return createWebpackConfig({
-    entry,
-    outputRoot: paths.cast_root,
-    isProdBuild,
-    latestBuild,
-  });
+  return createWebpackConfig(bundle.config.cast({ isProdBuild, latestBuild }));
 };
 
 const createHassioConfig = ({ isProdBuild, latestBuild }) => {
-  if (latestBuild) {
-    throw new Error("Hass.io does not support latest build!");
-  }
-  const config = createWebpackConfig({
-    entry: {
-      entrypoint: path.resolve(paths.hassio_dir, "src/entrypoint.ts"),
-    },
-    outputRoot: "",
-    isProdBuild,
-    latestBuild,
-    dontHash: new Set(["entrypoint"]),
-  });
-
-  config.output.path = paths.hassio_root;
-  config.output.publicPath = paths.hassio_publicPath;
-
-  return config;
+  return createWebpackConfig(
+    bundle.config.hassio({ isProdBuild, latestBuild })
+  );
 };
 
 const createGalleryConfig = ({ isProdBuild, latestBuild }) => {
-  if (!latestBuild) {
-    throw new Error("Gallery only supports latest build!");
-  }
-  const config = createWebpackConfig({
-    entry: {
-      entrypoint: path.resolve(paths.gallery_dir, "src/entrypoint.js"),
-    },
-    outputRoot: paths.gallery_root,
-    isProdBuild,
-    latestBuild,
-  });
-
-  return config;
+  return createWebpackConfig(
+    bundle.config.gallery({ isProdBuild, latestBuild })
+  );
 };
 
 module.exports = {

cast/rollup.config.js

@@ -0,0 +1,10 @@
+const rollup = require("../build-scripts/rollup.js");
+const env = require("../build-scripts/env.js");
+
+const config = rollup.createCastConfig({
+  isProdBuild: env.isProdBuild(),
+  latestBuild: true,
+  isStatsBuild: env.isStatsBuild(),
+});
+
+module.exports = { ...config.inputOptions, output: config.outputOptions };

cast/src/html/launcher-faq.html.template

@@ -37,18 +37,21 @@
   <body>
     <%= renderTemplate('_js_base') %>
 
-    <script type="module" crossorigin="use-credentials">
-      import "<%= latestLauncherJS %>";
+    <script>
+      import("<%= latestLauncherJS %>");
+      window.latestJS = true;
     </script>
 
-    <script nomodule>
-      (function() {
-        // // Safari 10.1 supports type=module but ignores nomodule, so we add this check.
-        if (!isS101) {
-          _ls("/static/polyfills/custom-elements-es5-adapter.js");
+    <script>
+      if (!window.latestJS) {
+        <% if (useRollup) { %>
+          _ls("/static/js/s.min.js").onload = function() {
+            System.import("<%= es5LauncherJS %>");
+          };
+        <% } else { %>
           _ls("<%= es5LauncherJS %>");
-        }
-      })();
+        <% } %>
+      }
     </script>
 
     <hc-layout subtitle="FAQ">
@@ -248,7 +251,7 @@ http:
 
     <script>
       var _gaq = [["_setAccount", "UA-57927901-9"], ["_trackPageview"]];
-      (function(d, t) {
+      (function (d, t) {
         var g = d.createElement(t),
           s = d.getElementsByTagName(t)[0];
         g.src =

cast/src/html/launcher.html.template

@@ -28,18 +28,21 @@
 
     <hc-connect></hc-connect>
 
-    <script type="module" crossorigin="use-credentials">
-      import "<%= latestLauncherJS %>";
+    <script>
+      import("<%= latestLauncherJS %>");
+      window.latestJS = true;
     </script>
 
-    <script nomodule>
-      (function() {
-        // // Safari 10.1 supports type=module but ignores nomodule, so we add this check.
-        if (!isS101) {
-          _ls("/static/polyfills/custom-elements-es5-adapter.js");
+    <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(){

cast/src/launcher/entrypoint.ts

@@ -1,5 +1,3 @@
 import "../../../src/resources/ha-style";
 import "../../../src/resources/roboto";
-import "../../../src/components/ha-iconset-svg";
-import "../../../src/resources/hass-icons";
 import "./layout/hc-connect";

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

@@ -1,51 +1,54 @@
+import "@polymer/paper-item/paper-icon-item";
+import "@polymer/paper-listbox/paper-listbox";
+import { Auth, Connection } from "home-assistant-js-websocket";
 import {
+  css,
+  CSSResult,
   customElement,
+  html,
   LitElement,
   property,
+  internalProperty,
   TemplateResult,
-  html,
-  CSSResult,
-  css,
 } from "lit-element";
-import { Connection, Auth } from "home-assistant-js-websocket";
-import "@polymer/iron-icon";
-import "@polymer/paper-listbox/paper-listbox";
-import "@polymer/paper-item/paper-icon-item";
-import "../../../../src/components/ha-icon";
-import {
-  enableWrite,
-  askWrite,
-  saveTokens,
-} from "../../../../src/common/auth/token_storage";
-import {
-  ensureConnectedCastSession,
-  castSendShowLovelaceView,
-} from "../../../../src/cast/receiver_messages";
-import "../../../../src/layouts/loading-screen";
 import { CastManager } from "../../../../src/cast/cast_manager";
 import {
-  LovelaceConfig,
-  getLovelaceCollection,
-  getLegacyLovelaceCollection,
-} from "../../../../src/data/lovelace";
-import "./hc-layout";
-import { generateDefaultViewConfig } from "../../../../src/panels/lovelace/common/generate-lovelace-config";
-import { toggleAttribute } from "../../../../src/common/dom/toggle_attribute";
+  castSendShowLovelaceView,
+  ensureConnectedCastSession,
+} from "../../../../src/cast/receiver_messages";
+import {
+  askWrite,
+  enableWrite,
+  saveTokens,
+} from "../../../../src/common/auth/token_storage";
 import { atLeastVersion } from "../../../../src/common/config/version";
+import { toggleAttribute } from "../../../../src/common/dom/toggle_attribute";
+import "../../../../src/components/ha-icon";
+import {
+  getLegacyLovelaceCollection,
+  getLovelaceCollection,
+  LovelaceConfig,
+} from "../../../../src/data/lovelace";
+import "../../../../src/layouts/hass-loading-screen";
+import { generateDefaultViewConfig } from "../../../../src/panels/lovelace/common/generate-lovelace-config";
+import "./hc-layout";
+import "@material/mwc-button/mwc-button";
 
 @customElement("hc-cast")
 class HcCast extends LitElement {
   @property() public auth!: Auth;
+
   @property() public connection!: Connection;
+
   @property() public castManager!: CastManager;
-  @property() private askWrite = false;
-  @property() private lovelaceConfig?: LovelaceConfig | null;
+
+  @internalProperty() private askWrite = false;
+
+  @internalProperty() private lovelaceConfig?: LovelaceConfig | null;
 
   protected render(): TemplateResult {
     if (this.lovelaceConfig === undefined) {
-      return html`
-        <loading-screen></loading-screen>>
-      `;
+      return html` <hass-loading-screen no-toolbar></hass-loading-screen>> `;
     }
 
     const error =
@@ -75,14 +78,12 @@ class HcCast extends LitElement {
             `
           : ""}
         ${error
-          ? html`
-              <div class="card-content">${error}</div>
-            `
+          ? html` <div class="card-content">${error}</div> `
           : !this.castManager.status
           ? html`
               <p class="center-item">
                 <mwc-button raised @click=${this._handleLaunch}>
-                  <iron-icon icon="hass:cast"></iron-icon>
+                  <ha-icon icon="hass:cast"></ha-icon>
                   Start Casting
                 </mwc-button>
               </p>
@@ -120,7 +121,7 @@ class HcCast extends LitElement {
           ${this.castManager.status
             ? html`
                 <mwc-button @click=${this._handleLaunch}>
-                  <iron-icon icon="hass:cast-connected"></iron-icon>
+                  <ha-icon icon="hass:cast-connected"></ha-icon>
                   Manage
                 </mwc-button>
               `
@@ -242,7 +243,7 @@ class HcCast extends LitElement {
         color: var(--secondary-text-color);
       }
 
-      mwc-button iron-icon {
+      mwc-button ha-icon {
         margin-right: 8px;
         height: 18px;
       }

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

@@ -1,35 +1,35 @@
-import {
-  LitElement,
-  customElement,
-  property,
-  TemplateResult,
-  html,
-  CSSResult,
-  css,
-} from "lit-element";
-import {
-  getAuth,
-  createConnection,
-  Auth,
-  getAuthOptions,
-  ERR_HASS_HOST_REQUIRED,
-  ERR_INVALID_HTTPS_TO_HTTP,
-  Connection,
-  ERR_CANNOT_CONNECT,
-  ERR_INVALID_AUTH,
-} from "home-assistant-js-websocket";
-import "@polymer/iron-icon";
 import "@material/mwc-button";
 import "@polymer/paper-input/paper-input";
+import {
+  Auth,
+  Connection,
+  createConnection,
+  ERR_CANNOT_CONNECT,
+  ERR_HASS_HOST_REQUIRED,
+  ERR_INVALID_AUTH,
+  ERR_INVALID_HTTPS_TO_HTTP,
+  getAuth,
+  getAuthOptions,
+} from "home-assistant-js-websocket";
+import {
+  css,
+  CSSResult,
+  customElement,
+  html,
+  LitElement,
+  TemplateResult,
+  internalProperty,
+} from "lit-element";
+import { CastManager, getCastManager } from "../../../../src/cast/cast_manager";
+import { castSendShowDemo } from "../../../../src/cast/receiver_messages";
 import {
   loadTokens,
   saveTokens,
 } from "../../../../src/common/auth/token_storage";
-import "../../../../src/layouts/loading-screen";
-import { CastManager, getCastManager } from "../../../../src/cast/cast_manager";
-import "./hc-layout";
-import { castSendShowDemo } from "../../../../src/cast/receiver_messages";
+import "../../../../src/components/ha-icon";
+import "../../../../src/layouts/hass-loading-screen";
 import { registerServiceWorker } from "../../../../src/util/register-service-worker";
+import "./hc-layout";
 
 const seeFAQ = (qid) => html`
   See <a href="./faq.html${qid ? `#${qid}` : ""}">the FAQ</a> for more
@@ -60,14 +60,20 @@ const INTRO = html`
 
 @customElement("hc-connect")
 export class HcConnect extends LitElement {
-  @property() private loading = false;
+  @internalProperty() private loading = false;
+
   // If we had stored credentials but we cannot connect,
   // show a screen asking retry or logout.
-  @property() private cannotConnect = false;
-  @property() private error?: string | TemplateResult;
-  @property() private auth?: Auth;
-  @property() private connection?: Connection;
-  @property() private castManager?: CastManager | null;
+  @internalProperty() private cannotConnect = false;
+
+  @internalProperty() private error?: string | TemplateResult;
+
+  @internalProperty() private auth?: Auth;
+
+  @internalProperty() private connection?: Connection;
+
+  @internalProperty() private castManager?: CastManager | null;
+
   private openDemo = false;
 
   protected render(): TemplateResult {
@@ -92,9 +98,7 @@ export class HcConnect extends LitElement {
     }
 
     if (this.castManager === undefined || this.loading) {
-      return html`
-        <loading-screen></loading-screen>
-      `;
+      return html` <hass-loading-screen no-toolbar></hass-loading-screen> `;
     }
 
     if (this.castManager === null) {
@@ -127,20 +131,16 @@ export class HcConnect extends LitElement {
                 @keydown=${this._handleInputKeyDown}
               ></paper-input>
             </p>
-            ${this.error
-              ? html`
-                  <p class="error">${this.error}</p>
-                `
-              : ""}
+            ${this.error ? html` <p class="error">${this.error}</p> ` : ""}
           </div>
           <div class="card-actions">
             <mwc-button @click=${this._handleDemo}>
               Show Demo
-              <iron-icon
+              <ha-icon
                 .icon=${this.castManager.castState === "CONNECTED"
                   ? "hass:cast-connected"
                   : "hass:cast"}
-              ></iron-icon>
+              ></ha-icon>
             </mwc-button>
             <div class="spacer"></div>
             <mwc-button @click=${this._handleConnect}>Authorize</mwc-button>
@@ -184,7 +184,7 @@ export class HcConnect extends LitElement {
         this.castManager = null;
       }
     );
-    registerServiceWorker(false);
+    registerServiceWorker(this, false);
   }
 
   private async _handleDemo() {
@@ -211,7 +211,8 @@ export class HcConnect extends LitElement {
     if (value === "") {
       this.error = "Please enter a Home Assistant URL.";
       return;
-    } else if (value.indexOf("://") === -1) {
+    }
+    if (value.indexOf("://") === -1) {
       this.error =
         "Please enter your full URL, including the protocol part (https://).";
       return;
@@ -315,7 +316,7 @@ export class HcConnect extends LitElement {
         color: darkred;
       }
 
-      mwc-button iron-icon {
+      mwc-button ha-icon {
         margin-left: 8px;
       }
 

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

@@ -1,25 +1,28 @@
-import {
-  customElement,
-  LitElement,
-  TemplateResult,
-  html,
-  CSSResult,
-  css,
-  property,
-} from "lit-element";
 import {
   Auth,
   Connection,
-  HassUser,
   getUser,
+  HassUser,
 } from "home-assistant-js-websocket";
+import {
+  css,
+  CSSResult,
+  customElement,
+  html,
+  LitElement,
+  property,
+  TemplateResult,
+} from "lit-element";
 import "../../../../src/components/ha-card";
 
 @customElement("hc-layout")
 class HcLayout extends LitElement {
   @property() public subtitle?: string | undefined;
+
   @property() public auth?: Auth;
+
   @property() public connection?: Connection;
+
   @property() public user?: HassUser;
 
   protected render(): TemplateResult {
@@ -37,11 +40,7 @@ class HcLayout extends LitElement {
                         this.auth.data.hassUrl.indexOf("//") + 2
                       )}</a
                     >
-                    ${this.user
-                      ? html`
-                          – ${this.user.name}
-                        `
-                      : ""}
+                    ${this.user ? html` – ${this.user.name} ` : ""}
                   </div>
                 `
               : ""}

cast/src/receiver/cast_context.ts

@@ -1 +1,2 @@
+/* eslint-disable no-undef */
 export const castContext = cast.framework.CastReceiverContext.getInstance();

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

@@ -1,4 +1,4 @@
-import { Entity, convertEntities } from "../../../../src/fake_data/entity";
+import { convertEntities, Entity } from "../../../../src/fake_data/entity";
 
 export const castDemoEntities: () => Entity[] = () =>
   convertEntities({

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

@@ -1,6 +1,6 @@
 import {
-  LovelaceConfig,
   LovelaceCardConfig,
+  LovelaceConfig,
 } from "../../../../src/data/lovelace";
 import { castContext } from "../cast_context";
 

cast/src/receiver/entrypoint.ts

@@ -1,9 +1,10 @@
+/* eslint-disable no-undef */
+import { CAST_NS } from "../../../src/cast/const";
+import { HassMessage } from "../../../src/cast/receiver_messages";
 import "../../../src/resources/custom-card-support";
 import { castContext } from "./cast_context";
-import { ReceivedMessage } from "./types";
-import { HassMessage } from "../../../src/cast/receiver_messages";
 import { HcMain } from "./layout/hc-main";
-import { CAST_NS } from "../../../src/cast/const";
+import { ReceivedMessage } from "./types";
 
 const controller = new HcMain();
 document.body.append(controller);

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

@@ -1,20 +1,27 @@
-import { HassElement } from "../../../../src/state/hass-element";
-import "./hc-lovelace";
-import { customElement, TemplateResult, html, property } from "lit-element";
+import {
+  customElement,
+  html,
+  property,
+  internalProperty,
+  TemplateResult,
+} from "lit-element";
+import { mockHistory } from "../../../../demo/src/stubs/history";
+import { LovelaceConfig } from "../../../../src/data/lovelace";
 import {
   MockHomeAssistant,
   provideHass,
 } from "../../../../src/fake_data/provide_hass";
+import { HassElement } from "../../../../src/state/hass-element";
 import { HomeAssistant } from "../../../../src/types";
-import { LovelaceConfig } from "../../../../src/data/lovelace";
 import { castDemoEntities } from "../demo/cast-demo-entities";
 import { castDemoLovelace } from "../demo/cast-demo-lovelace";
-import { mockHistory } from "../../../../demo/src/stubs/history";
+import "./hc-lovelace";
 
 @customElement("hc-demo")
 class HcDemo extends HassElement {
-  @property() public lovelacePath!: string;
-  @property() private _lovelaceConfig?: LovelaceConfig;
+  @property({ attribute: false }) public lovelacePath!: string;
+
+  @internalProperty() private _lovelaceConfig?: LovelaceConfig;
 
   protected render(): TemplateResult {
     if (!this._lovelaceConfig) {
@@ -28,6 +35,7 @@ class HcDemo extends HassElement {
       ></hc-lovelace>
     `;
   }
+
   protected firstUpdated(changedProps) {
     super.firstUpdated(changedProps);
     this._initialize();

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

@@ -1,17 +1,18 @@
 import {
-  LitElement,
-  TemplateResult,
-  html,
-  customElement,
-  CSSResult,
   css,
+  CSSResult,
+  customElement,
+  html,
+  LitElement,
   property,
+  TemplateResult,
 } from "lit-element";
 import { HomeAssistant } from "../../../../src/types";
 
 @customElement("hc-launch-screen")
 class HcLaunchScreen extends LitElement {
-  @property() public hass?: HomeAssistant;
+  @property({ attribute: false }) public hass?: HomeAssistant;
+
   @property() public error?: string;
 
   protected render(): TemplateResult {
@@ -22,11 +23,7 @@ class HcLaunchScreen extends LitElement {
         />
         <div class="status">
           ${this.hass ? "Connected" : "Not Connected"}
-          ${this.error
-            ? html`
-                <p>Error: ${this.error}</p>
-              `
-            : ""}
+          ${this.error ? html` <p>Error: ${this.error}</p> ` : ""}
         </div>
       </div>
     `;

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

@@ -1,24 +1,24 @@
 import {
-  LitElement,
-  TemplateResult,
-  html,
-  customElement,
-  CSSResult,
   css,
+  CSSResult,
+  customElement,
+  html,
+  LitElement,
   property,
+  TemplateResult,
 } from "lit-element";
 import { LovelaceConfig } from "../../../../src/data/lovelace";
-import "../../../../src/panels/lovelace/views/hui-view";
-import "../../../../src/panels/lovelace/views/hui-panel-view";
-import { HomeAssistant } from "../../../../src/types";
 import { Lovelace } from "../../../../src/panels/lovelace/types";
+import "../../../../src/panels/lovelace/views/hui-panel-view";
+import "../../../../src/panels/lovelace/views/hui-view";
+import { HomeAssistant } from "../../../../src/types";
 import "./hc-launch-screen";
 
 @customElement("hc-lovelace")
 class HcLovelace extends LitElement {
-  @property() public hass!: HomeAssistant;
+  @property({ attribute: false }) public hass!: HomeAssistant;
 
-  @property() public lovelaceConfig!: LovelaceConfig;
+  @property({ attribute: false }) public lovelaceConfig!: LovelaceConfig;
 
   @property() public viewPath?: string | number;
 
@@ -46,6 +46,7 @@ class HcLovelace extends LitElement {
       ? html`
           <hui-panel-view
             .hass=${this.hass}
+            .lovelace=${lovelace}
             .config=${this.lovelaceConfig.views[index]}
           ></hui-panel-view>
         `

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

@@ -1,45 +1,51 @@
 import {
-  getAuth,
   createConnection,
+  getAuth,
   UnsubscribeFunc,
 } from "home-assistant-js-websocket";
-import { customElement, TemplateResult, html, property } from "lit-element";
-import { HassElement } from "../../../../src/state/hass-element";
 import {
-  HassMessage,
-  ConnectMessage,
-  ShowLovelaceViewMessage,
-  GetStatusMessage,
-  ShowDemoMessage,
-} from "../../../../src/cast/receiver_messages";
-import {
-  LovelaceConfig,
-  getLovelaceCollection,
-  fetchResources,
-  LegacyLovelaceConfig,
-  getLegacyLovelaceCollection,
-} from "../../../../src/data/lovelace";
-import "./hc-launch-screen";
-import { castContext } from "../cast_context";
+  customElement,
+  html,
+  internalProperty,
+  TemplateResult,
+} from "lit-element";
 import { CAST_NS } from "../../../../src/cast/const";
+import {
+  ConnectMessage,
+  GetStatusMessage,
+  HassMessage,
+  ShowDemoMessage,
+  ShowLovelaceViewMessage,
+} from "../../../../src/cast/receiver_messages";
 import { ReceiverStatusMessage } from "../../../../src/cast/sender_messages";
-import { loadLovelaceResources } from "../../../../src/panels/lovelace/common/load-resources";
-import { isNavigationClick } from "../../../../src/common/dom/is-navigation-click";
 import { atLeastVersion } from "../../../../src/common/config/version";
+import { isNavigationClick } from "../../../../src/common/dom/is-navigation-click";
+import {
+  fetchResources,
+  getLegacyLovelaceCollection,
+  getLovelaceCollection,
+  LegacyLovelaceConfig,
+  LovelaceConfig,
+} from "../../../../src/data/lovelace";
+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";
 
 let resourcesLoaded = false;
 
 @customElement("hc-main")
 export class HcMain extends HassElement {
-  @property() private _showDemo = false;
+  @internalProperty() private _showDemo = false;
 
-  @property() private _lovelaceConfig?: LovelaceConfig;
+  @internalProperty() private _lovelaceConfig?: LovelaceConfig;
 
-  @property() private _lovelacePath: string | number | null = null;
+  @internalProperty() private _lovelacePath: string | number | null = null;
 
-  @property() private _error?: string;
+  @internalProperty() private _error?: string;
 
   private _unsubLovelace?: UnsubscribeFunc;
+
   private _urlPath?: string | null;
 
   public processIncomingMessage(msg: HassMessage) {
@@ -52,16 +58,14 @@ export class HcMain extends HassElement {
     } else if (msg.type === "show_demo") {
       this._handleShowDemo(msg);
     } else {
-      // tslint:disable-next-line: no-console
+      // eslint-disable-next-line no-console
       console.warn("unknown msg type", msg);
     }
   }
 
   protected render(): TemplateResult {
     if (this._showDemo) {
-      return html`
-        <hc-demo .lovelacePath=${this._lovelacePath}></hc-demo>
-      `;
+      return html` <hc-demo .lovelacePath=${this._lovelacePath}></hc-demo> `;
     }
 
     if (
@@ -83,6 +87,7 @@ export class HcMain extends HassElement {
         .hass=${this.hass}
         .lovelaceConfig=${this._lovelaceConfig}
         .viewPath=${this._lovelacePath}
+        @config-refresh=${this._generateLovelaceConfig}
       ></hc-lovelace>
     `;
   }
@@ -91,15 +96,17 @@ export class HcMain extends HassElement {
     super.firstUpdated(changedProps);
     import("../second-load");
     window.addEventListener("location-changed", () => {
-      if (location.pathname.startsWith("/lovelace/")) {
-        this._lovelacePath = location.pathname.substr(10);
+      const panelPath = `/${this._urlPath || "lovelace"}/`;
+      if (location.pathname.startsWith(panelPath)) {
+        this._lovelacePath = location.pathname.substr(panelPath.length);
         this._sendStatus();
       }
     });
     document.body.addEventListener("click", (ev) => {
+      const panelPath = `/${this._urlPath || "lovelace"}/`;
       const href = isNavigationClick(ev);
-      if (href && href.startsWith("/lovelace/")) {
-        this._lovelacePath = href.substr(10);
+      if (href && href.startsWith(panelPath)) {
+        this._lovelacePath = href.substr(panelPath.length);
         this._sendStatus();
       }
     });
@@ -171,10 +178,10 @@ export class HcMain extends HassElement {
       this._error = "Cannot show Lovelace because we're not connected.";
       return;
     }
+    if (msg.urlPath === "lovelace") {
+      msg.urlPath = null;
+    }
     if (!this._unsubLovelace || this._urlPath !== msg.urlPath) {
-      if (msg.urlPath === "lovelace") {
-        msg.urlPath = null;
-      }
       this._urlPath = msg.urlPath;
       if (this._unsubLovelace) {
         this._unsubLovelace();
@@ -190,14 +197,11 @@ export class HcMain extends HassElement {
           this._handleNewLovelaceConfig(lovelaceConfig)
         );
       } catch (err) {
+        // eslint-disable-next-line
+        console.log("Error fetching Lovelace configuration", err, msg);
         // Generate a Lovelace config.
         this._unsubLovelace = () => undefined;
-        const { generateLovelaceConfigFromHass } = await import(
-          "../../../../src/panels/lovelace/common/generate-lovelace-config"
-        );
-        this._handleNewLovelaceConfig(
-          await generateLovelaceConfigFromHass(this.hass!)
-        );
+        await this._generateLovelaceConfig();
       }
     }
     if (!resourcesLoaded) {
@@ -217,6 +221,15 @@ export class HcMain extends HassElement {
     this._sendStatus();
   }
 
+  private async _generateLovelaceConfig() {
+    const { generateLovelaceConfigFromHass } = await import(
+      "../../../../src/panels/lovelace/common/generate-lovelace-config"
+    );
+    this._handleNewLovelaceConfig(
+      await generateLovelaceConfigFromHass(this.hass!)
+    );
+  }
+
   private _handleNewLovelaceConfig(lovelaceConfig: LovelaceConfig) {
     castContext.setApplicationState(lovelaceConfig.title!);
     this._lovelaceConfig = lovelaceConfig;

cast/src/receiver/second-load.ts

@@ -1,5 +1,4 @@
 import "web-animations-js/web-animations-next-lite.min";
-import "../../../src/resources/hass-icons";
 import "../../../src/resources/roboto";
-import "../../../src/components/ha-iconset-svg";
+import "../../../src/resources/ha-style";
 import "./layout/hc-lovelace";

cast/webpack.config.js

@@ -1,11 +1,8 @@
 const { createCastConfig } = require("../build-scripts/webpack.js");
-const { isProdBuild } = require("../build-scripts/env.js");
-
-// File just used for stats builds
-
-const latestBuild = true;
+const { isProdBuild, isStatsBuild } = require("../build-scripts/env.js");
 
 module.exports = createCastConfig({
   isProdBuild: isProdBuild(),
-  latestBuild,
+  isStatsBuild: isStatsBuild(),
+  latestBuild: true,
 });

demo/public/manifest.json

@@ -1,6 +1,6 @@
 {
   "background_color": "#FFFFFF",
-  "description": "Open-source home automation platform running on Python 3.",
+  "description": "Home automation platform that puts local control and privacy first.",
   "dir": "ltr",
   "display": "standalone",
   "icons": [
@@ -31,7 +31,7 @@
   ],
   "lang": "en-US",
   "name": "Home Assistant Demo",
-  "short_name": "Demo",
+  "short_name": "HA Demo",
   "start_url": "/?homescreen=1",
   "theme_color": "#03A9F4"
 }

demo/rollup.config.js

@@ -0,0 +1,10 @@
+const rollup = require("../build-scripts/rollup.js");
+const env = require("../build-scripts/env.js");
+
+const config = rollup.createDemoConfig({
+  isProdBuild: env.isProdBuild(),
+  latestBuild: true,
+  isStatsBuild: env.isStatsBuild(),
+});
+
+module.exports = { ...config.inputOptions, output: config.outputOptions };

demo/script/size_stats

@@ -7,5 +7,5 @@ set -e
 cd "$(dirname "$0")/.."
 
 STATS=1 NODE_ENV=production ../node_modules/.bin/webpack --profile --json > compilation-stats.json
-npx webpack-bundle-analyzer compilation-stats.json dist
+npx webpack-bundle-analyzer compilation-stats.json dist/frontend_latest
 rm compilation-stats.json

demo/src/configs/arsaboo/index.ts

@@ -1,6 +1,6 @@
 import { DemoConfig } from "../types";
-import { demoLovelaceArsaboo } from "./lovelace";
 import { demoEntitiesArsaboo } from "./entities";
+import { demoLovelaceArsaboo } from "./lovelace";
 import { demoThemeArsaboo } from "./theme";
 
 export const demoArsaboo: DemoConfig = {

demo/src/configs/demo-configs.ts

@@ -21,7 +21,9 @@ export const demoConfigs: Array<() => Promise<DemoConfig>> = [
     ),
 ];
 
-export let selectedDemoConfigIndex: number = 0;
+// eslint-disable-next-line import/no-mutable-exports
+export let selectedDemoConfigIndex = 0;
+// eslint-disable-next-line import/no-mutable-exports
 export let selectedDemoConfig: Promise<DemoConfig> = demoConfigs[
   selectedDemoConfigIndex
 ]();

demo/src/configs/jimpower/index.ts

@@ -1,6 +1,6 @@
 import { DemoConfig } from "../types";
-import { demoLovelaceJimpower } from "./lovelace";
 import { demoEntitiesJimpower } from "./entities";
+import { demoLovelaceJimpower } from "./lovelace";
 import { demoThemeJimpower } from "./theme";
 
 export const demoJimpower: DemoConfig = {

demo/src/configs/jimpower/theme.ts

@@ -26,14 +26,14 @@ export const demoThemeJimpower = () => ({
   "switch-checked-color": "var(--accent-color)",
   "paper-dialog-background-color": "#434954",
   "secondary-text-color": "#5294E2",
-  "google-red-500": "#E45E65",
+  "error-color": "#E45E65",
   "divider-color": "rgba(0, 0, 0, .12)",
-  "google-green-500": "#39E949",
+  "success-color": "#39E949",
   "switch-unchecked-button-color": "var(--disabled-text-color)",
   "label-badge-border-color": "green",
   "paper-listbox-color": "var(--primary-color)",
   "paper-slider-disabled-secondary-color": "var(--disabled-text-color)",
-  "paper-card-background-color": "#434954",
+  "card-background-color": "#434954",
   "label-badge-text-color": "var(--primary-text-color)",
   "paper-slider-knob-start-color": "var(--accent-color)",
   "switch-unchecked-track-color": "var(--disabled-text-color)",

demo/src/configs/kernehed/index.ts

@@ -1,6 +1,6 @@
 import { DemoConfig } from "../types";
-import { demoLovelaceKernehed } from "./lovelace";
 import { demoEntitiesKernehed } from "./entities";
+import { demoLovelaceKernehed } from "./lovelace";
 import { demoThemeKernehed } from "./theme";
 
 export const demoKernehed: DemoConfig = {

demo/src/configs/kernehed/theme.ts

@@ -27,14 +27,14 @@ export const demoThemeKernehed = () => ({
   "switch-checked-color": "var(--accent-color)",
   "paper-dialog-background-color": "#292929",
   "secondary-text-color": "#b58e31",
-  "google-red-500": "#b58e31",
+  "error-color": "#b58e31",
   "divider-color": "rgba(0, 0, 0, .12)",
-  "google-green-500": "#2980b9",
+  "success-color": "#2980b9",
   "switch-unchecked-button-color": "var(--disabled-text-color)",
   "label-badge-border-color": "green",
   "paper-listbox-color": "#777777",
   "paper-slider-disabled-secondary-color": "var(--disabled-text-color)",
-  "paper-card-background-color": "#292929",
+  "card-background-color": "#292929",
   "label-badge-text-color": "var(--primary-text-color)",
   "paper-slider-knob-start-color": "var(--accent-color)",
   "switch-unchecked-track-color": "var(--disabled-text-color)",

demo/src/configs/teachingbirds/index.ts

@@ -1,6 +1,6 @@
 import { DemoConfig } from "../types";
-import { demoLovelaceTeachingbirds } from "./lovelace";
 import { demoEntitiesTeachingbirds } from "./entities";
+import { demoLovelaceTeachingbirds } from "./lovelace";
 import { demoThemeTeachingbirds } from "./theme";
 
 export const demoTeachingbirds: DemoConfig = {

demo/src/configs/teachingbirds/lovelace.ts

@@ -63,8 +63,7 @@ export const demoLovelaceTeachingbirds: DemoConfig["lovelace"] = () => ({
                   elements: [
                     {
                       style: {
-                        "--iron-icon-width": "100px",
-                        "--iron-icon-height": "100px",
+                        "--mdc-icon-size": "100%",
                         top: "50%",
                         left: "50%",
                       },

demo/src/configs/teachingbirds/theme.ts

@@ -13,7 +13,7 @@ export const demoThemeTeachingbirds = () => ({
   "paper-listbox-color": "#FFFFFF",
   "paper-toggle-button-checked-bar-color": "var(--light-primary-color)",
   "switch-unchecked-track-color": "var(--primary-text-color)",
-  "paper-card-background-color": "#4e4e4e",
+  "card-background-color": "#4e4e4e",
   "label-badge-text-color": "var(--text-primary-color)",
   "primary-background-color": "#303030",
   "sidebar-icon-color": "var(--paper-item-icon-color)",

demo/src/configs/types.ts

@@ -1,6 +1,6 @@
+import { LocalizeFunc } from "../../../src/common/translations/localize";
 import { LovelaceConfig } from "../../../src/data/lovelace";
 import { Entity } from "../../../src/fake_data/entity";
-import { LocalizeFunc } from "../../../src/common/translations/localize";
 
 export interface DemoConfig {
   index?: number;

demo/src/custom-cards/card-modder.js

@@ -1,3 +1,4 @@
+/* eslint-disable */
 import { LitElement } from "lit-element";
 import "./card-tools";
 

demo/src/custom-cards/card-tools.js

@@ -1,4 +1,5 @@
-import { LitElement, html } from "lit-element";
+/* eslint-disable */
+import { html, LitElement } from "lit-element";
 
 if (!window.cardTools) {
   const version = 0.2;

demo/src/custom-cards/cast-demo-row.ts

@@ -1,27 +1,26 @@
 import {
-  html,
-  LitElement,
-  TemplateResult,
-  customElement,
-  property,
   css,
   CSSResult,
+  customElement,
+  html,
+  LitElement,
+  internalProperty,
+  TemplateResult,
 } from "lit-element";
-
-import "../../../src/components/ha-icon";
-import {
-  LovelaceRow,
-  CastConfig,
-} from "../../../src/panels/lovelace/entity-rows/types";
-import { HomeAssistant } from "../../../src/types";
 import { CastManager } from "../../../src/cast/cast_manager";
 import { castSendShowDemo } from "../../../src/cast/receiver_messages";
+import "../../../src/components/ha-icon";
+import {
+  CastConfig,
+  LovelaceRow,
+} from "../../../src/panels/lovelace/entity-rows/types";
+import { HomeAssistant } from "../../../src/types";
 
 @customElement("cast-demo-row")
 class CastDemoRow extends LitElement implements LovelaceRow {
   public hass!: HomeAssistant;
 
-  @property() private _castManager?: CastManager | null;
+  @internalProperty() private _castManager?: CastManager | null;
 
   public setConfig(_config: CastConfig): void {
     // No config possible.
@@ -52,6 +51,7 @@ class CastDemoRow extends LitElement implements LovelaceRow {
           this.requestUpdate();
         });
         mgr.castContext.addEventListener(
+          // eslint-disable-next-line no-undef
           cast.framework.CastContextEventType.SESSION_STATE_CHANGED,
           (ev) => {
             // On Android, opening a new session always results in SESSION_RESUMED.

demo/src/custom-cards/ha-demo-card.ts

@@ -1,22 +1,33 @@
-import { LitElement, html, CSSResult, css, property } from "lit-element";
-import { until } from "lit-html/directives/until";
 import "@material/mwc-button";
-import "@polymer/paper-spinner/paper-spinner-lite";
+import {
+  css,
+  CSSResult,
+  html,
+  LitElement,
+  property,
+  internalProperty,
+  TemplateResult,
+} from "lit-element";
+import { until } from "lit-html/directives/until";
 import "../../../src/components/ha-card";
-import { LovelaceCard, Lovelace } from "../../../src/panels/lovelace/types";
+import "../../../src/components/ha-circular-progress";
 import { LovelaceCardConfig } from "../../../src/data/lovelace";
 import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+import { Lovelace, LovelaceCard } from "../../../src/panels/lovelace/types";
 import {
   demoConfigs,
   selectedDemoConfig,
-  setDemoConfig,
   selectedDemoConfigIndex,
+  setDemoConfig,
 } from "../configs/demo-configs";
 
 export class HADemoCard extends LitElement implements LovelaceCard {
-  @property() public lovelace?: Lovelace;
-  @property() public hass!: MockHomeAssistant;
-  @property() private _switching?: boolean;
+  @property({ attribute: false }) public lovelace?: Lovelace;
+
+  @property({ attribute: false }) public hass!: MockHomeAssistant;
+
+  @internalProperty() private _switching?: boolean;
+
   private _hidden = localStorage.hide_demo_card;
 
   public getCardSize() {
@@ -25,22 +36,21 @@ export class HADemoCard extends LitElement implements LovelaceCard {
 
   public setConfig(
     // @ts-ignore
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
     config: LovelaceCardConfig
-    // tslint:disable-next-line:no-empty
+    // eslint-disable-next-line @typescript-eslint/no-empty-function
   ) {}
 
-  protected render() {
+  protected render(): TemplateResult {
     if (this._hidden) {
-      return;
+      return html``;
     }
     return html`
       <ha-card>
         <div class="picker">
           <div class="label">
             ${this._switching
-              ? html`
-                  <paper-spinner-lite active></paper-spinner-lite>
-                `
+              ? html`<ha-circular-progress active></ha-circular-progress>`
               : until(
                   selectedDemoConfig.then(
                     (conf) => html`

demo/src/entrypoint.ts

@@ -1,14 +1,8 @@
-import "@polymer/paper-styles/typography";
 import "@polymer/polymer/lib/elements/dom-if";
 import "@polymer/polymer/lib/elements/dom-repeat";
-
-import "../../src/resources/hass-icons";
 import "../../src/resources/ha-style";
 import "../../src/resources/roboto";
-import "../../src/components/ha-iconset-svg";
-
 import "./ha-demo";
-import "./resources/hademo-icons";
 
 /* polyfill for paper-dropdown */
 setTimeout(() => {

demo/src/ha-demo.ts

@@ -1,23 +1,24 @@
-import { HomeAssistantAppEl } from "../../src/layouts/home-assistant";
-import {
-  provideHass,
-  MockHomeAssistant,
-} from "../../src/fake_data/provide_hass";
+import "../../src/resources/compatibility";
+import { isNavigationClick } from "../../src/common/dom/is-navigation-click";
 import { navigate } from "../../src/common/navigate";
-import { mockLovelace } from "./stubs/lovelace";
-import { mockAuth } from "./stubs/auth";
+import {
+  MockHomeAssistant,
+  provideHass,
+} from "../../src/fake_data/provide_hass";
+import { HomeAssistantAppEl } from "../../src/layouts/home-assistant";
+import { HomeAssistant } from "../../src/types";
 import { selectedDemoConfig } from "./configs/demo-configs";
-import { mockTranslations } from "./stubs/translations";
+import { mockAuth } from "./stubs/auth";
+import { mockEvents } from "./stubs/events";
+import { mockFrontend } from "./stubs/frontend";
 import { mockHistory } from "./stubs/history";
+import { mockLovelace } from "./stubs/lovelace";
+import { mockMediaPlayer } from "./stubs/media_player";
+import { mockPersistentNotification } from "./stubs/persistent_notification";
 import { mockShoppingList } from "./stubs/shopping_list";
 import { mockSystemLog } from "./stubs/system_log";
 import { mockTemplate } from "./stubs/template";
-import { mockEvents } from "./stubs/events";
-import { mockMediaPlayer } from "./stubs/media_player";
-import { HomeAssistant } from "../../src/types";
-import { mockFrontend } from "./stubs/frontend";
-import { mockPersistentNotification } from "./stubs/persistent_notification";
-import { isNavigationClick } from "../../src/common/dom/is-navigation-click";
+import { mockTranslations } from "./stubs/translations";
 
 class HaDemo extends HomeAssistantAppEl {
   protected async _initialize() {

demo/src/html/index.html.template

@@ -1,22 +1,10 @@
 <!DOCTYPE html>
-<html lang="en">
+<html>
   <head>
     <meta charset="utf-8" />
     <link rel="manifest" href="/manifest.json" crossorigin="use-credentials" />
     <link rel="icon" href="/static/icons/favicon.ico" />
     <link rel="mask-icon" href="/static/icons/mask-icon.svg" color="#03a9f4" />
-    <link
-      rel="preload"
-      href="/static/fonts/roboto/Roboto-Regular.woff2"
-      as="font"
-      crossorigin
-    />
-    <link
-      rel="preload"
-      href="/static/fonts/roboto/Roboto-Medium.woff2"
-      as="font"
-      crossorigin
-    />
     <link
       rel="apple-touch-icon"
       sizes="180x180"
@@ -96,23 +84,28 @@
     <div id="ha-init-skeleton"></div>
     <ha-demo></ha-demo>
     <%= renderTemplate('_js_base') %>
+    <%= renderTemplate('_preload_roboto') %>
 
-    <script type="module" src="<%= latestDemoJS %>"></script>
+    <script>
+      import("<%= latestDemoJS %>");
+      window.latestJS = true;
+    </script>
 
-    <script nomodule>
-      (function() {
-        // // Safari 10.1 supports type=module but ignores nomodule, so we add this check.
-        if (!isS101) {
-          _ls("/static/polyfills/custom-elements-es5-adapter.js");
-          _ls("<%= es5Compatibility %>");
+    <script>
+      if (!window.latestJS) {
+        <% if (useRollup) { %>
+          _ls("/static/js/s.min.js").onload = function() {
+            System.import("<%= es5DemoJS %>");
+          };
+        <% } else { %>
           _ls("<%= es5DemoJS %>");
-        }
-      })();
+        <% } %>
+      }
     </script>
 
     <script>
       var _gaq = [["_setAccount", "UA-57927901-5"], ["_trackPageview"]];
-      (function(d, t) {
+      (function (d, t) {
         var g = d.createElement(t),
           s = d.getElementsByTagName(t)[0];
         g.src =

demo/src/resources/hademo-icons.js

@@ -1,7 +0,0 @@
-import "../../../src/components/ha-iconset-svg";
-import iconSetContent from "../../hademo-icons.html";
-
-const documentContainer = document.createElement("template");
-documentContainer.setAttribute("style", "display: none;");
-documentContainer.innerHTML = iconSetContent;
-document.head.appendChild(documentContainer.content);

demo/src/stubs/history.ts

@@ -1,5 +1,5 @@
-import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 import { HassEntity } from "home-assistant-js-websocket";
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 interface HistoryQueryParams {
   filter_entity_id: string;
@@ -95,7 +95,7 @@ export const mockHistory = (mockHass: MockHomeAssistant) => {
         const numberState = Number(state.state);
 
         if (isNaN(numberState)) {
-          // tslint:disable-next-line
+          // eslint-disable-next-line
           console.log(
             "Ignoring state with unparsable state but with a unit",
             entityId,

demo/src/stubs/lovelace.ts

@@ -1,11 +1,9 @@
-import "../custom-cards/ha-demo-card";
-import "../custom-cards/cast-demo-row";
-// Not duplicate, one is for typing.
-// tslint:disable-next-line
-import { HADemoCard } from "../custom-cards/ha-demo-card";
-import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
+import type { LocalizeFunc } from "../../../src/common/translations/localize";
+import type { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 import { selectedDemoConfig } from "../configs/demo-configs";
-import { LocalizeFunc } from "../../../src/common/translations/localize";
+import "../custom-cards/cast-demo-row";
+import "../custom-cards/ha-demo-card";
+import type { HADemoCard } from "../custom-cards/ha-demo-card";
 
 export const mockLovelace = (
   hass: MockHomeAssistant,
@@ -19,15 +17,16 @@ export const mockLovelace = (
   );
 
   hass.mockWS("lovelace/config/save", () => Promise.resolve());
+  hass.mockWS("lovelace/resources", () => Promise.resolve([]));
 };
 
 customElements.whenDefined("hui-view").then(() => {
-  // tslint:disable-next-line
+  // eslint-disable-next-line
   const HUIView = customElements.get("hui-view");
   // Patch HUI-VIEW to make the lovelace object available to the demo card
   const oldCreateCard = HUIView.prototype.createCardElement;
 
-  HUIView.prototype.createCardElement = function(config) {
+  HUIView.prototype.createCardElement = function (config) {
     const el = oldCreateCard.call(this, config);
     if (el.tagName === "HA-DEMO-CARD") {
       (el as HADemoCard).lovelace = this.lovelace;

demo/src/stubs/persistent_notification.ts

@@ -1,5 +1,5 @@
-import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 import { PersistentNotification } from "../../../src/data/persistent_notification";
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 export const mockPersistentNotification = (hass: MockHomeAssistant) => {
   hass.mockWS("persistent_notification/get", () =>

demo/src/stubs/shopping_list.ts

@@ -1,5 +1,5 @@
-import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 import { ShoppingListItem } from "../../../src/data/shopping-list";
+import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 let items: ShoppingListItem[] = [
   {

demo/src/stubs/translations.ts

@@ -1,474 +1,10 @@
 import { MockHomeAssistant } from "../../../src/fake_data/provide_hass";
 
 export const mockTranslations = (hass: MockHomeAssistant) => {
-  hass.mockWS("frontend/get_translations", () => ({
-    resources: {
-      "component.lifx.config.abort.no_devices_found":
-        "No LIFX devices found on the network.",
-      "component.lifx.config.abort.single_instance_allowed":
-        "Only a single configuration of LIFX is possible.",
-      "component.lifx.config.step.confirm.description":
-        "Do you want to set up LIFX?",
-      "component.lifx.config.step.confirm.title": "LIFX",
-      "component.lifx.config.title": "LIFX",
-      "component.hangouts.config.abort.already_configured":
-        "Google Hangouts is already configured",
-      "component.hangouts.config.abort.unknown": "Unknown error occurred.",
-      "component.hangouts.config.error.invalid_2fa":
-        "Invalid 2 Factor Authentication, please try again.",
-      "component.hangouts.config.error.invalid_2fa_method":
-        "Invalid 2FA Method (Verify on Phone).",
-      "component.hangouts.config.error.invalid_login":
-        "Invalid Login, please try again.",
-      "component.hangouts.config.step.2fa.data.2fa": "2FA Pin",
-      "component.hangouts.config.step.2fa.title": "2-Factor-Authentication",
-      "component.hangouts.config.step.user.data.email": "E-Mail Address",
-      "component.hangouts.config.step.user.data.password": "Password",
-      "component.hangouts.config.step.user.title": "Google Hangouts Login",
-      "component.hangouts.config.title": "Google Hangouts",
-      "component.rainmachine.config.error.identifier_exists":
-        "Account already registered",
-      "component.rainmachine.config.error.invalid_credentials":
-        "Invalid credentials",
-      "component.rainmachine.config.step.user.data.ip_address":
-        "Hostname or IP Address",
-      "component.rainmachine.config.step.user.data.password": "Password",
-      "component.rainmachine.config.step.user.data.port": "Port",
-      "component.rainmachine.config.step.user.title":
-        "Fill in your information",
-      "component.rainmachine.config.title": "RainMachine",
-      "component.homematicip_cloud.config.abort.already_configured":
-        "Access point is already configured",
-      "component.homematicip_cloud.config.abort.connection_aborted":
-        "Could not connect to HMIP server",
-      "component.homematicip_cloud.config.abort.unknown":
-        "Unknown error occurred.",
-      "component.homematicip_cloud.config.error.invalid_pin":
-        "Invalid PIN, please try again.",
-      "component.homematicip_cloud.config.error.press_the_button":
-        "Please press the blue button.",
-      "component.homematicip_cloud.config.error.register_failed":
-        "Failed to register, please try again.",
-      "component.homematicip_cloud.config.error.timeout_button":
-        "Blue button press timeout, please try again.",
-      "component.homematicip_cloud.config.step.init.data.hapid":
-        "Access point ID (SGTIN)",
-      "component.homematicip_cloud.config.step.init.data.name":
-        "Name (optional, used as name prefix for all devices)",
-      "component.homematicip_cloud.config.step.init.data.pin":
-        "Pin Code (optional)",
-      "component.homematicip_cloud.config.step.init.title":
-        "Pick HomematicIP Access point",
-      "component.homematicip_cloud.config.step.link.description":
-        "Press the blue button on the access point and the submit button to register HomematicIP with Home Assistant.\n\n![Location of button on bridge](/static/images/config_flows/config_homematicip_cloud.png)",
-      "component.homematicip_cloud.config.step.link.title": "Link Access point",
-      "component.homematicip_cloud.config.title": "HomematicIP Cloud",
-      "component.daikin.config.abort.already_configured":
-        "Device is already configured",
-      "component.daikin.config.abort.device_fail":
-        "Unexpected error creating device.",
-      "component.daikin.config.abort.device_timeout":
-        "Timeout connecting to the device.",
-      "component.daikin.config.step.user.data.host": "Host",
-      "component.daikin.config.step.user.description":
-        "Enter IP address of your Daikin AC.",
-      "component.daikin.config.step.user.title": "Configure Daikin AC",
-      "component.daikin.config.title": "Daikin AC",
-      "component.unifi.config.abort.already_configured":
-        "Controller site is already configured",
-      "component.unifi.config.abort.user_privilege":
-        "User needs to be administrator",
-      "component.unifi.config.error.faulty_credentials": "Bad user credentials",
-      "component.unifi.config.error.service_unavailable":
-        "No service available",
-      "component.unifi.config.step.user.data.host": "Host",
-      "component.unifi.config.step.user.data.password": "Password",
-      "component.unifi.config.step.user.data.port": "Port",
-      "component.unifi.config.step.user.data.site": "Site ID",
-      "component.unifi.config.step.user.data.username": "User name",
-      "component.unifi.config.step.user.data.verify_ssl":
-        "Controller using proper certificate",
-      "component.unifi.config.step.user.title": "Set up UniFi Controller",
-      "component.unifi.config.title": "UniFi Controller",
-      "component.nest.config.abort.already_setup":
-        "You can only configure a single Nest account.",
-      "component.nest.config.abort.authorize_url_fail":
-        "Unknown error generating an authorize url.",
-      "component.nest.config.abort.authorize_url_timeout":
-        "Timeout generating authorize url.",
-      "component.nest.config.abort.no_flows":
-        "You need to configure Nest before being able to authenticate with it. [Please read the instructions](https://www.home-assistant.io/integrations/nest/).",
-      "component.nest.config.error.internal_error":
-        "Internal error validating code",
-      "component.nest.config.error.invalid_code": "Invalid code",
-      "component.nest.config.error.timeout": "Timeout validating code",
-      "component.nest.config.error.unknown": "Unknown error validating code",
-      "component.nest.config.step.init.data.flow_impl": "Provider",
-      "component.nest.config.step.init.description":
-        "Pick via which authentication provider you want to authenticate with Nest.",
-      "component.nest.config.step.init.title": "Authentication Provider",
-      "component.nest.config.step.link.data.code": "Pin code",
-      "component.nest.config.step.link.description":
-        "To link your Nest account, [authorize your account]({url}).\n\nAfter authorization, copy-paste the provided pin code below.",
-      "component.nest.config.step.link.title": "Link Nest Account",
-      "component.nest.config.title": "Nest",
-      "component.mailgun.config.abort.not_internet_accessible":
-        "Your Home Assistant instance needs to be accessible from the internet to receive Mailgun messages.",
-      "component.mailgun.config.abort.one_instance_allowed":
-        "Only a single instance is necessary.",
-      "component.mailgun.config.create_entry.default":
-        "To send events to Home Assistant, you will need to setup [Webhooks with Mailgun]({mailgun_url}).\n\nFill in the following info:\n\n- URL: `{webhook_url}`\n- Method: POST\n- Content Type: application/json\n\nSee [the documentation]({docs_url}) on how to configure automations to handle incoming data.",
-      "component.mailgun.config.step.user.description":
-        "Are you sure you want to set up Mailgun?",
-      "component.mailgun.config.step.user.title": "Set up the Mailgun Webhook",
-      "component.mailgun.config.title": "Mailgun",
-      "component.tellduslive.config.abort.already_setup":
-        "TelldusLive is already configured",
-      "component.tellduslive.config.abort.authorize_url_fail":
-        "Unknown error generating an authorize url.",
-      "component.tellduslive.config.abort.authorize_url_timeout":
-        "Timeout generating authorize url.",
-      "component.tellduslive.config.abort.unknown": "Unknown error occurred",
-      "component.tellduslive.config.error.auth_error":
-        "Authentication error, please try again",
-      "component.tellduslive.config.step.auth.description":
-        "To link your TelldusLive account:\n 1. Click the link below\n 2. Login to Telldus Live\n 3. Authorize **{app_name}** (click **Yes**).\n 4. Come back here and click **SUBMIT**.\n\n [Link TelldusLive account]({auth_url})",
-      "component.tellduslive.config.step.auth.title":
-        "Authenticate against TelldusLive",
-      "component.tellduslive.config.step.user.data.host": "Host",
-      "component.tellduslive.config.step.user.title": "Pick endpoint.",
-      "component.tellduslive.config.title": "Telldus Live",
-      "component.esphome.config.abort.already_configured":
-        "ESP is already configured",
-      "component.esphome.config.error.connection_error":
-        "Can't connect to ESP. Please make sure your YAML file contains an 'api:' line.",
-      "component.esphome.config.error.invalid_password": "Invalid password!",
-      "component.esphome.config.error.resolve_error":
-        "Can't resolve address of the ESP. If this error persists, please set a static IP address: https://esphomelib.com/esphomeyaml/components/wifi.html#manual-ips",
-      "component.esphome.config.step.authenticate.data.password": "Password",
-      "component.esphome.config.step.authenticate.description":
-        "Please enter the password you set in your configuration.",
-      "component.esphome.config.step.authenticate.title": "Enter Password",
-      "component.esphome.config.step.user.data.host": "Host",
-      "component.esphome.config.step.user.data.port": "Port",
-      "component.esphome.config.step.user.description":
-        "Please enter connection settings of your [ESPHome](https://esphomelib.com/) node.",
-      "component.esphome.config.step.user.title": "ESPHome",
-      "component.esphome.config.title": "ESPHome",
-      "component.luftdaten.config.error.communication_error":
-        "Unable to communicate with the Luftdaten API",
-      "component.luftdaten.config.error.invalid_sensor":
-        "Sensor not available or invalid",
-      "component.luftdaten.config.error.sensor_exists":
-        "Sensor already registered",
-      "component.luftdaten.config.step.user.data.show_on_map": "Show on map",
-      "component.luftdaten.config.step.user.data.station_id":
-        "Luftdaten Sensor ID",
-      "component.luftdaten.config.step.user.title": "Define Luftdaten",
-      "component.luftdaten.config.title": "Luftdaten",
-      "component.upnp.config.abort.already_configured":
-        "UPnP/IGD is already configured",
-      "component.upnp.config.abort.incomplete_device":
-        "Ignoring incomplete UPnP device",
-      "component.upnp.config.abort.no_devices_discovered":
-        "No UPnP/IGDs discovered",
-      "component.upnp.config.abort.no_devices_found":
-        "No UPnP/IGD devices found on the network.",
-      "component.upnp.config.abort.no_sensors_or_port_mapping":
-        "Enable at least sensors or port mapping",
-      "component.upnp.config.abort.single_instance_allowed":
-        "Only a single configuration of UPnP/IGD is necessary.",
-      "component.upnp.config.step.confirm.description":
-        "Do you want to set up UPnP/IGD?",
-      "component.upnp.config.step.confirm.title": "UPnP/IGD",
-      "component.upnp.config.step.init.title": "UPnP/IGD",
-      "component.upnp.config.step.user.data.enable_port_mapping":
-        "Enable port mapping for Home Assistant",
-      "component.upnp.config.step.user.data.enable_sensors":
-        "Add traffic sensors",
-      "component.upnp.config.step.user.data.igd": "UPnP/IGD",
-      "component.upnp.config.step.user.title":
-        "Configuration options for the UPnP/IGD",
-      "component.upnp.config.title": "UPnP/IGD",
-      "component.point.config.abort.already_setup":
-        "You can only configure a Point account.",
-      "component.point.config.abort.authorize_url_fail":
-        "Unknown error generating an authorize url.",
-      "component.point.config.abort.authorize_url_timeout":
-        "Timeout generating authorize url.",
-      "component.point.config.abort.external_setup":
-        "Point successfully configured from another flow.",
-      "component.point.config.abort.no_flows":
-        "You need to configure Point before being able to authenticate with it. [Please read the instructions](https://www.home-assistant.io/integrations/point/).",
-      "component.point.config.create_entry.default":
-        "Successfully authenticated with Minut for your Point device(s)",
-      "component.point.config.error.follow_link":
-        "Please follow the link and authenticate before pressing Submit",
-      "component.point.config.error.no_token": "Not authenticated with Minut",
-      "component.point.config.step.auth.description":
-        "Please follow the link below and <b>Accept</b> access to your Minut account, then come back and press <b>Submit</b> below.\n\n[Link]({authorization_url})",
-      "component.point.config.step.auth.title": "Authenticate Point",
-      "component.point.config.step.user.data.flow_impl": "Provider",
-      "component.point.config.step.user.description":
-        "Pick via which authentication provider you want to authenticate with Point.",
-      "component.point.config.step.user.title": "Authentication Provider",
-      "component.point.config.title": "Minut Point",
-      "component.auth.mfa_setup.notify.abort.no_available_service":
-        "No notification services available.",
-      "component.auth.mfa_setup.notify.error.invalid_code":
-        "Invalid code, please try again.",
-      "component.auth.mfa_setup.notify.step.init.description":
-        "Please select one of the notification services:",
-      "component.auth.mfa_setup.notify.step.init.title":
-        "Set up one-time password delivered by notify component",
-      "component.auth.mfa_setup.notify.step.setup.description":
-        "A one-time password has been sent via **notify.{notify_service}**. Please enter it below:",
-      "component.auth.mfa_setup.notify.step.setup.title": "Verify setup",
-      "component.auth.mfa_setup.notify.title": "Notify One-Time Password",
-      "component.auth.mfa_setup.totp.error.invalid_code":
-        "Invalid code, please try again. If you get this error consistently, please make sure the clock of your Home Assistant system is accurate.",
-      "component.auth.mfa_setup.totp.step.init.description":
-        "To activate two factor authentication using time-based one-time passwords, scan the QR code with your authentication app. If you don't have one, we recommend either [Google Authenticator](https://support.google.com/accounts/answer/1066447) or [Authy](https://authy.com/).\n\n{qr_code}\n\nAfter scanning the code, enter the six digit code from your app to verify the setup. If you have problems scanning the QR code, do a manual setup with code **`{code}`**.",
-      "component.auth.mfa_setup.totp.step.init.title":
-        "Set up two-factor authentication using TOTP",
-      "component.auth.mfa_setup.totp.title": "TOTP",
-      "component.emulated_roku.config.abort.name_exists": "Name already exists",
-      "component.emulated_roku.config.step.user.data.advertise_ip":
-        "Advertise IP",
-      "component.emulated_roku.config.step.user.data.advertise_port":
-        "Advertise port",
-      "component.emulated_roku.config.step.user.data.host_ip": "Host IP",
-      "component.emulated_roku.config.step.user.data.listen_port":
-        "Listen port",
-      "component.emulated_roku.config.step.user.data.name": "Name",
-      "component.emulated_roku.config.step.user.data.upnp_bind_multicast":
-        "Bind multicast (True/False)",
-      "component.emulated_roku.config.step.user.title":
-        "Define server configuration",
-      "component.emulated_roku.config.title": "EmulatedRoku",
-      "component.owntracks.config.abort.one_instance_allowed":
-        "Only a single instance is necessary.",
-      "component.owntracks.config.create_entry.default":
-        "\n\nOn Android, open [the OwnTracks app]({android_url}), go to preferences -> connection. Change the following settings:\n - Mode: Private HTTP\n - Host: {webhook_url}\n - Identification:\n   - Username: `<Your name>`\n   - Device ID: `<Your device name>`\n\nOn iOS, open [the OwnTracks app]({ios_url}), tap (i) icon in top left -> settings. Change the following settings:\n - Mode: HTTP\n - URL: {webhook_url}\n - Turn on authentication\n - UserID: `<Your name>`\n\n{secret}\n\nSee [the documentation]({docs_url}) for more information.",
-      "component.owntracks.config.step.user.description":
-        "Are you sure you want to set up OwnTracks?",
-      "component.owntracks.config.step.user.title": "Set up OwnTracks",
-      "component.owntracks.config.title": "OwnTracks",
-      "component.zone.config.error.name_exists": "Name already exists",
-      "component.zone.config.step.init.data.icon": "Icon",
-      "component.zone.config.step.init.data.latitude": "Latitude",
-      "component.zone.config.step.init.data.longitude": "Longitude",
-      "component.zone.config.step.init.data.name": "Name",
-      "component.zone.config.step.init.data.passive": "Passive",
-      "component.zone.config.step.init.data.radius": "Radius",
-      "component.zone.config.step.init.title": "Define zone parameters",
-      "component.zone.config.title": "Zone",
-      "component.hue.config.abort.all_configured":
-        "All Philips Hue bridges are already configured",
-      "component.hue.config.abort.already_configured":
-        "Bridge is already configured",
-      "component.hue.config.abort.cannot_connect":
-        "Unable to connect to the bridge",
-      "component.hue.config.abort.discover_timeout":
-        "Unable to discover Hue bridges",
-      "component.hue.config.abort.no_bridges":
-        "No Philips Hue bridges discovered",
-      "component.hue.config.abort.unknown": "Unknown error occurred",
-      "component.hue.config.error.linking": "Unknown linking error occurred.",
-      "component.hue.config.error.register_failed":
-        "Failed to register, please try again",
-      "component.hue.config.step.init.data.host": "Host",
-      "component.hue.config.step.init.title": "Pick Hue bridge",
-      "component.hue.config.step.link.description":
-        "Press the button on the bridge to register Philips Hue with Home Assistant.\n\n![Location of button on bridge](/static/images/config_philips_hue.jpg)",
-      "component.hue.config.step.link.title": "Link Hub",
-      "component.hue.config.title": "Philips Hue",
-      "component.tradfri.config.abort.already_configured":
-        "Bridge is already configured",
-      "component.tradfri.config.error.cannot_connect":
-        "Unable to connect to the gateway.",
-      "component.tradfri.config.error.invalid_key":
-        "Failed to register with provided key. If this keeps happening, try restarting the gateway.",
-      "component.tradfri.config.error.timeout": "Timeout validating the code.",
-      "component.tradfri.config.step.auth.data.host": "Host",
-      "component.tradfri.config.step.auth.data.security_code": "Security Code",
-      "component.tradfri.config.step.auth.description":
-        "You can find the security code on the back of your gateway.",
-      "component.tradfri.config.step.auth.title": "Enter security code",
-      "component.tradfri.config.title": "IKEA TRÅDFRI",
-      "component.mqtt.config.abort.single_instance_allowed":
-        "Only a single configuration of MQTT is allowed.",
-      "component.mqtt.config.error.cannot_connect":
-        "Unable to connect to the broker.",
-      "component.mqtt.config.step.broker.data.broker": "Broker",
-      "component.mqtt.config.step.broker.data.discovery": "Enable discovery",
-      "component.mqtt.config.step.broker.data.password": "Password",
-      "component.mqtt.config.step.broker.data.port": "Port",
-      "component.mqtt.config.step.broker.data.username": "Username",
-      "component.mqtt.config.step.broker.description":
-        "Please enter the connection information of your MQTT broker.",
-      "component.mqtt.config.step.broker.title": "MQTT",
-      "component.mqtt.config.step.hassio_confirm.data.discovery":
-        "Enable discovery",
-      "component.mqtt.config.step.hassio_confirm.description":
-        "Do you want to configure Home Assistant to connect to the MQTT broker provided by the hass.io add-on {addon}?",
-      "component.mqtt.config.step.hassio_confirm.title":
-        "MQTT Broker via Hass.io add-on",
-      "component.mqtt.config.title": "MQTT",
-      "component.geofency.config.abort.not_internet_accessible":
-        "Your Home Assistant instance needs to be accessible from the internet to receive messages from Geofency.",
-      "component.geofency.config.abort.one_instance_allowed":
-        "Only a single instance is necessary.",
-      "component.geofency.config.create_entry.default":
-        "To send events to Home Assistant, you will need to setup the webhook feature in Geofency.\n\nFill in the following info:\n\n- URL: `{webhook_url}`\n- Method: POST\n\nSee [the documentation]({docs_url}) for further details.",
-      "component.geofency.config.step.user.description":
-        "Are you sure you want to set up the Geofency Webhook?",
-      "component.geofency.config.step.user.title":
-        "Set up the Geofency Webhook",
-      "component.geofency.config.title": "Geofency Webhook",
-      "component.simplisafe.config.error.identifier_exists":
-        "Account already registered",
-      "component.simplisafe.config.error.invalid_credentials":
-        "Invalid credentials",
-      "component.simplisafe.config.step.user.data.code":
-        "Code (for Home Assistant)",
-      "component.simplisafe.config.step.user.data.password": "Password",
-      "component.simplisafe.config.step.user.data.username": "Email Address",
-      "component.simplisafe.config.step.user.title": "Fill in your information",
-      "component.simplisafe.config.title": "SimpliSafe",
-      "component.dialogflow.config.abort.not_internet_accessible":
-        "Your Home Assistant instance needs to be accessible from the internet to receive Dialogflow messages.",
-      "component.dialogflow.config.abort.one_instance_allowed":
-        "Only a single instance is necessary.",
-      "component.dialogflow.config.create_entry.default":
-        "To send events to Home Assistant, you will need to setup [webhook integration of Dialogflow]({dialogflow_url}).\n\nFill in the following info:\n\n- URL: `{webhook_url}`\n- Method: POST\n- Content Type: application/json\n\nSee [the documentation]({docs_url}) for further details.",
-      "component.dialogflow.config.step.user.description":
-        "Are you sure you want to set up Dialogflow?",
-      "component.dialogflow.config.step.user.title":
-        "Set up the Dialogflow Webhook",
-      "component.dialogflow.config.title": "Dialogflow",
-      "component.deconz.config.abort.already_configured":
-        "Bridge is already configured",
-      "component.deconz.config.abort.no_bridges":
-        "No deCONZ bridges discovered",
-      "component.deconz.config.abort.one_instance_only":
-        "Component only supports one deCONZ instance",
-      "component.deconz.config.error.no_key": "Couldn't get an API key",
-      "component.deconz.config.step.init.data.host": "Host",
-      "component.deconz.config.step.init.data.port": "Port",
-      "component.deconz.config.step.init.title": "Define deCONZ gateway",
-      "component.deconz.config.step.link.description":
-        'Unlock your deCONZ gateway to register with Home Assistant.\n\n1. Go to deCONZ system settings\n2. Press "Unlock Gateway" button',
-      "component.deconz.config.step.link.title": "Link with deCONZ",
-      "component.deconz.config.step.options.data.allow_clip_sensor":
-        "Allow importing virtual sensors",
-      "component.deconz.config.step.options.data.allow_deconz_groups":
-        "Allow importing deCONZ groups",
-      "component.deconz.config.step.options.title":
-        "Extra configuration options for deCONZ",
-      "component.deconz.config.title": "deCONZ Zigbee gateway",
-      "component.openuv.config.error.identifier_exists":
-        "Coordinates already registered",
-      "component.openuv.config.error.invalid_api_key": "Invalid API key",
-      "component.openuv.config.step.user.data.api_key": "OpenUV API Key",
-      "component.openuv.config.step.user.data.elevation": "Elevation",
-      "component.openuv.config.step.user.data.latitude": "Latitude",
-      "component.openuv.config.step.user.data.longitude": "Longitude",
-      "component.openuv.config.step.user.title": "Fill in your information",
-      "component.openuv.config.title": "OpenUV",
-      "component.locative.config.title": "Locative Webhook",
-      "component.locative.config.step.user.title":
-        "Set up the Locative Webhook",
-      "component.locative.config.step.user.description":
-        "Are you sure you want to set up the Locative Webhook?",
-      "component.locative.config.abort.one_instance_allowed":
-        "Only a single instance is necessary.",
-      "component.locative.config.abort.not_internet_accessible":
-        "Your Home Assistant instance needs to be accessible from the internet to receive messages from Geofency.",
-      "component.locative.config.create_entry.default":
-        "To send locations to Home Assistant, you will need to setup the webhook feature in the Locative app.\n\nFill in the following info:\n\n- URL: `{webhook_url}`\n- Method: POST\n\nSee [the documentation]({docs_url}) for further details.",
-      "component.ios.config.abort.single_instance_allowed":
-        "Only a single configuration of Home Assistant iOS is necessary.",
-      "component.ios.config.step.confirm.description":
-        "Do you want to set up the Home Assistant iOS component?",
-      "component.ios.config.step.confirm.title": "Home Assistant iOS",
-      "component.ios.config.title": "Home Assistant iOS",
-      "component.smhi.config.error.name_exists": "Name already exists",
-      "component.smhi.config.error.wrong_location": "Location Sweden only",
-      "component.smhi.config.step.user.data.latitude": "Latitude",
-      "component.smhi.config.step.user.data.longitude": "Longitude",
-      "component.smhi.config.step.user.data.name": "Name",
-      "component.smhi.config.step.user.title": "Location in Sweden",
-      "component.smhi.config.title": "Swedish weather service (SMHI)",
-      "component.sonos.config.abort.no_devices_found":
-        "No Sonos devices found on the network.",
-      "component.sonos.config.abort.single_instance_allowed":
-        "Only a single configuration of Sonos is necessary.",
-      "component.sonos.config.step.confirm.description":
-        "Do you want to set up Sonos?",
-      "component.sonos.config.step.confirm.title": "Sonos",
-      "component.sonos.config.title": "Sonos",
-      "component.ifttt.config.abort.not_internet_accessible":
-        "Your Home Assistant instance needs to be accessible from the internet to receive IFTTT messages.",
-      "component.ifttt.config.abort.one_instance_allowed":
-        "Only a single instance is necessary.",
-      "component.ifttt.config.create_entry.default":
-        'To send events to Home Assistant, you will need to use the "Make a web request" action from the [IFTTT Webhook applet]({applet_url}).\n\nFill in the following info:\n\n- URL: `{webhook_url}`\n- Method: POST\n- Content Type: application/json\n\nSee [the documentation]({docs_url}) on how to configure automations to handle incoming data.',
-      "component.ifttt.config.step.user.description":
-        "Are you sure you want to set up IFTTT?",
-      "component.ifttt.config.step.user.title":
-        "Set up the IFTTT Webhook Applet",
-      "component.ifttt.config.title": "IFTTT",
-      "component.twilio.config.abort.not_internet_accessible":
-        "Your Home Assistant instance needs to be accessible from the internet to receive Twilio messages.",
-      "component.twilio.config.abort.one_instance_allowed":
-        "Only a single instance is necessary.",
-      "component.twilio.config.create_entry.default":
-        "To send events to Home Assistant, you will need to setup [Webhooks with Twilio]({twilio_url}).\n\nFill in the following info:\n\n- URL: `{webhook_url}`\n- Method: POST\n- Content Type: application/x-www-form-urlencoded\n\nSee [the documentation]({docs_url}) on how to configure automations to handle incoming data.",
-      "component.twilio.config.step.user.description":
-        "Are you sure you want to set up Twilio?",
-      "component.twilio.config.step.user.title": "Set up the Twilio Webhook",
-      "component.twilio.config.title": "Twilio",
-      "component.zha.config.abort.single_instance_allowed":
-        "Only a single configuration of ZHA is allowed.",
-      "component.zha.config.error.cannot_connect":
-        "Unable to connect to ZHA device.",
-      "component.zha.config.step.user.data.radio_type": "Radio Type",
-      "component.zha.config.step.user.data.usb_path": "USB Device Path",
-      "component.zha.config.step.user.title": "ZHA",
-      "component.zha.config.title": "ZHA",
-      "component.gpslogger.config.title": "GPSLogger Webhook",
-      "component.gpslogger.config.step.user.title":
-        "Set up the GPSLogger Webhook",
-      "component.gpslogger.config.step.user.description":
-        "Are you sure you want to set up the GPSLogger Webhook?",
-      "component.gpslogger.config.abort.one_instance_allowed":
-        "Only a single instance is necessary.",
-      "component.gpslogger.config.abort.not_internet_accessible":
-        "Your Home Assistant instance needs to be accessible from the internet to receive messages from GPSLogger.",
-      "component.gpslogger.config.create_entry.default":
-        "To send events to Home Assistant, you will need to setup the webhook feature in GPSLogger.\n\nFill in the following info:\n\n- URL: `{webhook_url}`\n- Method: POST\n\nSee [the documentation]({docs_url}) for further details.",
-      "component.zwave.config.abort.already_configured":
-        "Z-Wave is already configured",
-      "component.zwave.config.abort.one_instance_only":
-        "Component only supports one Z-Wave instance",
-      "component.zwave.config.error.option_error":
-        "Z-Wave validation failed. Is the path to the USB stick correct?",
-      "component.zwave.config.step.user.data.network_key":
-        "Network Key (leave blank to auto-generate)",
-      "component.zwave.config.step.user.data.usb_path": "USB Path",
-      "component.zwave.config.step.user.description":
-        "See https://www.home-assistant.io/docs/z-wave/installation/ for information on the configuration variables",
-      "component.zwave.config.step.user.title": "Set up Z-Wave",
-      "component.zwave.config.title": "Z-Wave",
-      "component.cast.config.abort.no_devices_found":
-        "No Google Cast devices found on the network.",
-      "component.cast.config.abort.single_instance_allowed":
-        "Only a single configuration of Google Cast is necessary.",
-      "component.cast.config.step.confirm.description":
-        "Do you want to set up Google Cast?",
-      "component.cast.config.step.confirm.title": "Google Cast",
-      "component.cast.config.title": "Google Cast",
-    },
-  }));
+  hass.mockWS(
+    "frontend/get_translations",
+    (/* msg: {language: string, category: string} */) => {
+      return { resources: {} };
+    }
+  );
 };

gallery/rollup.config.js

@@ -0,0 +1,10 @@
+const rollup = require("../build-scripts/rollup.js");
+const env = require("../build-scripts/env.js");
+
+const config = rollup.createGalleryConfig({
+  isProdBuild: env.isProdBuild(),
+  latestBuild: true,
+  isStatsBuild: env.isStatsBuild(),
+});
+
+module.exports = { ...config.inputOptions, output: config.outputOptions };

gallery/src/components/demo-card.js

@@ -1,7 +1,7 @@
 import { html } from "@polymer/polymer/lib/utils/html-tag";
+/* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
 import { safeLoad } from "js-yaml";
-
 import { createCardElement } from "../../../src/panels/lovelace/create-element/create-card-element";
 
 class DemoCard extends PolymerElement {
@@ -57,17 +57,41 @@ class DemoCard extends PolymerElement {
     };
   }
 
+  ready() {
+    super.ready();
+  }
+
   _configChanged(config) {
     const card = this.$.card;
     while (card.lastChild) {
       card.removeChild(card.lastChild);
     }
 
-    const el = createCardElement(safeLoad(config.config)[0]);
-    el.hass = this.hass;
+    const el = this._createCardElement(safeLoad(config.config)[0]);
     card.appendChild(el);
   }
 
+  _createCardElement(cardConfig) {
+    const element = createCardElement(cardConfig);
+    if (this.hass) {
+      element.hass = this.hass;
+    }
+    element.addEventListener(
+      "ll-rebuild",
+      (ev) => {
+        ev.stopPropagation();
+        this._rebuildCard(element, cardConfig);
+      },
+      { once: true }
+    );
+    return element;
+  }
+
+  _rebuildCard(cardElToReplace, config) {
+    const newCardEl = this._createCardElement(config);
+    cardElToReplace.parentElement.replaceChild(newCardEl, cardElToReplace);
+  }
+
   _hassChanged(hass) {
     const card = this.$.card.lastChild;
     if (card) card.hass = hass;

gallery/src/components/demo-cards.js

@@ -1,9 +1,10 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-import { PolymerElement } from "@polymer/polymer/polymer-element";
 import "@polymer/app-layout/app-toolbar/app-toolbar";
-
-import "./demo-card";
+import { html } from "@polymer/polymer/lib/utils/html-tag";
+/* eslint-plugin-disable lit */
+import { PolymerElement } from "@polymer/polymer/polymer-element";
 import "../../../src/components/ha-switch";
+import "../../../src/components/ha-formfield";
+import "./demo-card";
 
 class DemoCards extends PolymerElement {
   static get template() {
@@ -26,9 +27,10 @@ class DemoCards extends PolymerElement {
       </style>
       <app-toolbar>
         <div class="filters">
-          <ha-switch checked="[[_showConfig]]" on-change="_showConfigToggled">
-            Show config
-          </ha-switch>
+          <ha-formfield label="Show config">
+            <ha-switch checked="[[_showConfig]]" on-change="_showConfigToggled">
+            </ha-switch>
+          </ha-formfield>
         </div>
       </app-toolbar>
       <div class="cards">

gallery/src/components/demo-more-info.js

@@ -1,9 +1,9 @@
 import { html } from "@polymer/polymer/lib/utils/html-tag";
+/* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
-
-import "../../../src/state-summary/state-card-content";
-import "../../../src/dialogs/more-info/controls/more-info-content";
 import "../../../src/components/ha-card";
+import "../../../src/dialogs/more-info/more-info-content";
+import "../../../src/state-summary/state-card-content";
 
 class DemoMoreInfo extends PolymerElement {
   static get template() {

gallery/src/components/demo-more-infos.js

@@ -1,9 +1,9 @@
-import { html } from "@polymer/polymer/lib/utils/html-tag";
-import { PolymerElement } from "@polymer/polymer/polymer-element";
 import "@polymer/app-layout/app-toolbar/app-toolbar";
-
-import "./demo-more-info";
+import { html } from "@polymer/polymer/lib/utils/html-tag";
+/* eslint-plugin-disable lit */
+import { PolymerElement } from "@polymer/polymer/polymer-element";
 import "../../../src/components/ha-switch";
+import "./demo-more-info";
 
 class DemoMoreInfos extends PolymerElement {
   static get template() {

gallery/src/data/demo_states.js

@@ -420,15 +420,6 @@ export default {
     last_changed: "2018-07-19T10:44:46.105940+00:00",
     last_updated: "2018-07-19T10:44:46.105940+00:00",
   },
-  "weblink.router": {
-    entity_id: "weblink.router",
-    state: "http://192.168.1.1",
-    attributes: {
-      friendly_name: "Router",
-    },
-    last_changed: "2018-07-19T10:44:46.107286+00:00",
-    last_updated: "2018-07-19T10:44:46.107286+00:00",
-  },
   "group.all_plants": {
     entity_id: "group.all_plants",
     state: "ok",
@@ -1090,18 +1081,6 @@ export default {
     last_changed: "2018-07-19T10:44:46.510448+00:00",
     last_updated: "2018-07-19T10:44:46.510448+00:00",
   },
-  "history_graph.recent_switches": {
-    entity_id: "history_graph.recent_switches",
-    state: "unknown",
-    attributes: {
-      hours_to_show: 1,
-      refresh: 60,
-      entity_id: ["switch.ac", "switch.decorative_lights"],
-      friendly_name: "Recent Switches",
-    },
-    last_changed: "2018-07-19T10:44:46.512351+00:00",
-    last_updated: "2018-07-19T10:44:46.512351+00:00",
-  },
   "scene.switch_on_and_off": {
     entity_id: "scene.switch_on_and_off",
     state: "scening",

gallery/src/demos/demo-hui-alarm-panel-card.ts

@@ -1,6 +1,6 @@
 import { html } from "@polymer/polymer/lib/utils/html-tag";
+/* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
-
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -12,6 +12,9 @@ const ENTITIES = [
   getEntity("alarm_control_panel", "alarm_armed", "armed_home", {
     friendly_name: "Alarm",
   }),
+  getEntity("alarm_control_panel", "unavailable", "unavailable", {
+    friendly_name: "Alarm",
+  }),
 ];
 
 const CONFIGS = [
@@ -39,6 +42,15 @@ const CONFIGS = [
     - arm_home
     `,
   },
+  {
+    heading: "Unavailable",
+    config: `
+- type: alarm-panel
+  entity: alarm_control_panel.unavailable
+  states:
+    - arm_home
+    `,
+  },
   {
     heading: "Invalid Entity",
     config: `
@@ -72,6 +84,7 @@ class DemoAlarmPanelEntity extends PolymerElement {
   public ready() {
     super.ready();
     const hass = provideHass(this.$.demos);
+    hass.updateTranslations(null, "en");
     hass.addEntities(ENTITIES);
   }
 }

gallery/src/demos/demo-hui-conditional-card.ts

@@ -1,6 +1,6 @@
 import { html } from "@polymer/polymer/lib/utils/html-tag";
+/* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
-
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -77,6 +77,7 @@ class DemoConditional extends PolymerElement {
   public ready() {
     super.ready();
     const hass = provideHass(this.$.demos);
+    hass.updateTranslations(null, "en");
     hass.addEntities(ENTITIES);
   }
 }

gallery/src/demos/demo-hui-entities-card.ts

@@ -1,6 +1,6 @@
 import { html } from "@polymer/polymer/lib/utils/html-tag";
+/* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
-
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -60,6 +60,36 @@ const ENTITIES = [
     friendly_name: "Allowed Noise",
     icon: "mdi:bell-ring",
   }),
+  getEntity("light", "unavailable", "unavailable", {
+    friendly_name: "Bed Light",
+  }),
+  getEntity("lock", "unavailable", "unavailable", {
+    friendly_name: "Kitchen Door",
+  }),
+  getEntity("cover", "unavailable", "unavailable", {
+    friendly_name: "Kitchen Window",
+    supported_features: 11,
+  }),
+  getEntity("scene", "unavailable", "unavailable", {
+    friendly_name: "Romantic lights",
+  }),
+  getEntity("device_tracker", "unavailable", "unavailable", {
+    friendly_name: "Paulus",
+  }),
+  getEntity("climate", "unavailable", "unavailable", {
+    unit_of_measurement: "°F",
+    friendly_name: "Ecobee",
+    supported_features: 1014,
+  }),
+  getEntity("input_number", "unavailable", "unavailable", {
+    friendly_name: "Allowed Noise",
+    icon: "mdi:bell-ring",
+  }),
+  getEntity("input_select", "unavailable", "unavailable", {
+    unit_of_measurement: "dB",
+    friendly_name: "Who cooks",
+    icon: "mdi:cheff",
+  }),
 ];
 
 const CONFIGS = [
@@ -121,6 +151,21 @@ const CONFIGS = [
   title: Random group
     `,
   },
+  {
+    heading: "Unavailable",
+    config: `
+- type: entities
+  entities:
+    - scene.unavailable
+    - device_tracker.unavailable
+    - cover.unavailable
+    - lock.unavailable
+    - light.unavailable
+    - climate.unavailable
+    - input_number.unavailable
+    - input_select.unavailable
+    `,
+  },
   {
     heading: "Custom name, secondary info, custom icon",
     config: `
@@ -174,9 +219,7 @@ const CONFIGS = [
 
 class DemoEntities extends PolymerElement {
   static get template() {
-    return html`
-      <demo-cards id="demos" configs="[[_configs]]"></demo-cards>
-    `;
+    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
   }
 
   static get properties() {
@@ -191,6 +234,7 @@ class DemoEntities extends PolymerElement {
   public ready() {
     super.ready();
     const hass = provideHass(this.$.demos);
+    hass.updateTranslations(null, "en");
     hass.addEntities(ENTITIES);
   }
 }

gallery/src/demos/demo-hui-entity-button-card.ts

@@ -1,6 +1,6 @@
 import { html } from "@polymer/polymer/lib/utils/html-tag";
+/* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
-
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -93,6 +93,7 @@ class DemoButtonEntity extends PolymerElement {
   public ready() {
     super.ready();
     const hass = provideHass(this.$.demos);
+    hass.updateTranslations(null, "en");
     hass.addEntities(ENTITIES);
   }
 }

gallery/src/demos/demo-hui-entity-filter-card.ts

@@ -1,6 +1,6 @@
 import { html } from "@polymer/polymer/lib/utils/html-tag";
+/* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
-
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -91,9 +91,7 @@ const CONFIGS = [
 
 class DemoFilter extends PolymerElement {
   static get template() {
-    return html`
-      <demo-cards id="demos" configs="[[_configs]]"></demo-cards>
-    `;
+    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
   }
 
   static get properties() {
@@ -108,6 +106,7 @@ class DemoFilter extends PolymerElement {
   public ready() {
     super.ready();
     const hass = provideHass(this.$.demos);
+    hass.updateTranslations(null, "en");
     hass.addEntities(ENTITIES);
   }
 }

gallery/src/demos/demo-hui-gauge-card.ts

@@ -1,9 +1,9 @@
 import { html } from "@polymer/polymer/lib/utils/html-tag";
+/* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
-
-import "../components/demo-cards";
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
+import "../components/demo-cards";
 
 const ENTITIES = [
   getEntity("sensor", "brightness", "12", {}),
@@ -78,9 +78,7 @@ const CONFIGS = [
 
 class DemoGaugeEntity extends PolymerElement {
   static get template() {
-    return html`
-      <demo-cards id="demos" configs="[[_configs]]"></demo-cards>
-    `;
+    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
   }
 
   static get properties() {
@@ -95,6 +93,7 @@ class DemoGaugeEntity extends PolymerElement {
   public ready() {
     super.ready();
     const hass = provideHass(this.$.demos);
+    hass.updateTranslations(null, "en");
     hass.addEntities(ENTITIES);
   }
 }

gallery/src/demos/demo-hui-glance-card.ts

@@ -1,6 +1,6 @@
 import { html } from "@polymer/polymer/lib/utils/html-tag";
+/* eslint-plugin-disable lit */
 import { PolymerElement } from "@polymer/polymer/polymer-element";
-
 import { getEntity } from "../../../src/fake_data/entity";
 import { provideHass } from "../../../src/fake_data/provide_hass";
 import "../components/demo-cards";
@@ -220,9 +220,7 @@ const CONFIGS = [
 
 class DemoPicEntity extends PolymerElement {
   static get template() {
-    return html`
-      <demo-cards id="demos" configs="[[_configs]]"></demo-cards>
-    `;
+    return html` <demo-cards id="demos" configs="[[_configs]]"></demo-cards> `;
   }
 
   static get properties() {
@@ -237,6 +235,7 @@ class DemoPicEntity extends PolymerElement {
   public ready() {
     super.ready();
     const hass = provideHass(this.$.demos);
+    hass.updateTranslations(null, "en");
     hass.addEntities(ENTITIES);
   }
 }