DEV: Update ember-cli to 4.12.0 (#21074)

It's backward compatible so still supports our 3.28 ember-source.

The visible change is finally getting rid of this message:

```
WARNING: Node v18.12.0 is not tested against Ember CLI on your platform. We recommend that you use the most-recent "Active LTS" version of Node.js. See https://git.io/v7S5n for details.
```

---

`@ember/string` dependency is added for future compatibility. See: https://github.com/ember-cli/ember-cli/pull/10125

---

`tests/helpers/index.js` is unused for now, but is a nice pattern. We could move some of our test setup into local `setupApplicationTest/setupRenderingTest/setupTest` helpers.

Co-authored-by: David Taylor <david@taylorhq.com>

app/assets/javascripts/admin/config/ember-cli-update.json

@@ -3,14 +3,16 @@
   "packages": [
     {
       "name": "ember-cli",
-      "version": "3.28.5",
+      "version": "4.12.0",
       "blueprints": [
         {
           "name": "addon",
           "outputRepo": "https://github.com/ember-cli/ember-addon-output",
           "codemodsSource": "ember-addon-codemods-manifest@1",
           "isBaseBlueprint": true,
-          "options": ["--no-welcome"]
+          "options": [
+            "--no-welcome"
+          ]
         }
       ]
     }

app/assets/javascripts/admin/ember-cli-build.js

@@ -3,7 +3,7 @@
 const EmberAddon = require("ember-cli/lib/broccoli/ember-addon");
 
 module.exports = function (defaults) {
-  let app = new EmberAddon(defaults, {
+  const app = new EmberAddon(defaults, {
     autoImport: {
       publicAssetURL: "",
     },

app/assets/javascripts/admin/package.json

@@ -15,8 +15,8 @@
     "start": "ember serve"
   },
   "dependencies": {
-    "ember-auto-import": "^2.6.2",
+    "ember-auto-import": "^2.6.3",
-    "ember-cli-babel": "^7.26.10",
+    "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.2.0",
     "webpack": "^5.79.0",
     "xss": "^1.0.14"
@@ -24,17 +24,18 @@
   "devDependencies": {
     "@babel/core": "^7.21.4",
     "@ember/optional-features": "^2.0.0",
+    "@ember/string": "^3.0.1",
     "@embroider/test-setup": "^2.1.1",
     "@glimmer/component": "^1.1.2",
     "broccoli-asset-rev": "^3.0.0",
-    "ember-cli": "~3.28.5",
+    "ember-cli": "~4.12.0",
     "ember-cli-dependency-checker": "^3.3.1",
     "ember-cli-inject-live-reload": "^2.1.0",
     "ember-cli-sri": "^2.1.1",
     "ember-cli-terser": "^4.0.2",
     "ember-disable-prototype-extensions": "^1.1.3",
     "ember-load-initializers": "^2.1.1",
-    "ember-resolver": "^8.0.3",
+    "ember-resolver": "^10.0.0",
     "ember-source": "~3.28.11",
     "ember-source-channel-url": "^3.0.0",
     "loader.js": "^4.7.0"

app/assets/javascripts/dialog-holder/package.json

@@ -9,8 +9,8 @@
   ],
   "dependencies": {
     "a11y-dialog": "7.5.2",
-    "ember-auto-import": "^2.6.2",
+    "ember-auto-import": "^2.6.3",
-    "ember-cli-babel": "^7.26.10",
+    "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.2.0"
   },
   "devDependencies": {

app/assets/javascripts/discourse-common/config/ember-cli-update.json

@@ -3,14 +3,16 @@
   "packages": [
     {
       "name": "ember-cli",
-      "version": "3.28.5",
+      "version": "4.12.0",
       "blueprints": [
         {
           "name": "addon",
           "outputRepo": "https://github.com/ember-cli/ember-addon-output",
           "codemodsSource": "ember-addon-codemods-manifest@1",
           "isBaseBlueprint": true,
-          "options": ["--no-welcome"]
+          "options": [
+            "--no-welcome"
+          ]
         }
       ]
     }

app/assets/javascripts/discourse-common/config/ember-try.js

@@ -1,119 +0,0 @@
-"use strict";
-
-const getChannelURL = require("ember-source-channel-url");
-const { embroiderSafe, embroiderOptimized } = require("@embroider/test-setup");
-
-module.exports = async function () {
-  return {
-    useYarn: true,
-    scenarios: [
-      {
-        name: "ember-lts-3.8",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.8.0",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.12",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.12.0",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.20",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.20.5",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.24",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.24.3",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.28",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-        },
-      },
-      {
-        name: "ember-release",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("release"),
-          },
-        },
-      },
-      {
-        name: "ember-beta",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("beta"),
-          },
-        },
-      },
-      {
-        name: "ember-canary",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("canary"),
-          },
-        },
-      },
-      // The default `.travis.yml` runs this scenario via `yarn test`,
-      // not via `ember try`. It's still included here so that running
-      // `ember try:each` manually or from a customized CI config will run it
-      // along with all the other scenarios.
-      {
-        name: "ember-default",
-        npm: {
-          devDependencies: {},
-        },
-      },
-      {
-        name: "ember-default-with-jquery",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "jquery-integration": true,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "@ember/jquery": "^0.5.1",
-          },
-        },
-      },
-      {
-        name: "ember-classic",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "application-template-wrapper": true,
-            "default-async-observers": false,
-            "template-only-glimmer-components": false,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-          ember: {
-            edition: "classic",
-          },
-        },
-      },
-      embroiderSafe(),
-      embroiderOptimized(),
-    ],
-  };
-};

app/assets/javascripts/discourse-common/config/environment.js

@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = function (/* environment, appConfig */) {
-  return {};
-};

app/assets/javascripts/discourse-common/ember-cli-build.js

@@ -3,7 +3,7 @@
 const EmberAddon = require("ember-cli/lib/broccoli/ember-addon");
 
 module.exports = function (defaults) {
-  let app = new EmberAddon(defaults, {
+  const app = new EmberAddon(defaults, {
     autoImport: {
       publicAssetURL: "",
     },

app/assets/javascripts/discourse-common/package.json

@@ -15,16 +15,17 @@
     "start": "ember serve"
   },
   "dependencies": {
+    "@ember/string": "^3.0.1",
     "@uppy/aws-s3": "^3.0.6",
     "@uppy/aws-s3-multipart": "^3.1.3",
     "@uppy/core": "^3.0.4",
     "@uppy/drop-target": "^2.0.1",
     "@uppy/utils": "^5.2.0",
     "@uppy/xhr-upload": "^3.1.1",
-    "ember-auto-import": "^2.6.2",
+    "ember-auto-import": "^2.6.3",
-    "ember-cli-babel": "^7.26.10",
+    "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.2.0",
-    "ember-resolver": "^8.0.3",
+    "ember-resolver": "^10.0.0",
     "handlebars": "^4.7.0",
     "truth-helpers": "1.0.0",
     "webpack": "^5.79.0"
@@ -35,7 +36,7 @@
     "@embroider/test-setup": "^2.1.1",
     "@glimmer/component": "^1.1.2",
     "broccoli-asset-rev": "^3.0.0",
-    "ember-cli": "~3.28.5",
+    "ember-cli": "~4.12.0",
     "ember-cli-dependency-checker": "^3.3.1",
     "ember-cli-inject-live-reload": "^2.1.0",
     "ember-cli-sri": "^2.1.1",

app/assets/javascripts/discourse-common/tests/dummy/app/index.html

@@ -1,24 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>Dummy</title>
-    <meta name="description" content="">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-
-    {{content-for "head"}}
-
-    <link integrity="" rel="stylesheet" href="{{rootURL}}assets/vendor.css">
-    <link integrity="" rel="stylesheet" href="{{rootURL}}assets/dummy.css">
-
-    {{content-for "head-footer"}}
-  </head>
-  <body>
-    {{content-for "body"}}
-
-    <script src="{{rootURL}}assets/vendor.js"></script>
-    <script src="{{rootURL}}assets/dummy.js"></script>
-
-    {{content-for "body-footer"}}
-  </body>
-</html>

app/assets/javascripts/discourse-common/tests/index.html

@@ -1,39 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>Dummy Tests</title>
-    <meta name="description" content="">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-
-    {{content-for "head"}}
-    {{content-for "test-head"}}
-
-    <link rel="stylesheet" href="{{rootURL}}assets/vendor.css">
-    <link rel="stylesheet" href="{{rootURL}}assets/dummy.css">
-    <link rel="stylesheet" href="{{rootURL}}assets/test-support.css">
-
-    {{content-for "head-footer"}}
-    {{content-for "test-head-footer"}}
-  </head>
-  <body>
-    {{content-for "body"}}
-    {{content-for "test-body"}}
-
-    <div id="qunit"></div>
-    <div id="qunit-fixture">
-      <div id="ember-testing-container">
-        <div id="ember-testing"></div>
-      </div>
-    </div>
-
-    <script src="/testem.js" integrity="" data-embroider-ignore></script>
-    <script src="{{rootURL}}assets/vendor.js"></script>
-    <script src="{{rootURL}}assets/test-support.js"></script>
-    <script src="{{rootURL}}assets/dummy.js"></script>
-    <script src="{{rootURL}}assets/tests.js"></script>
-
-    {{content-for "body-footer"}}
-    {{content-for "test-body-footer"}}
-  </body>
-</html>

app/assets/javascripts/discourse-hbr/config/ember-cli-update.json

@@ -3,14 +3,16 @@
   "packages": [
     {
       "name": "ember-cli",
-      "version": "3.28.5",
+      "version": "4.12.0",
       "blueprints": [
         {
           "name": "addon",
           "outputRepo": "https://github.com/ember-cli/ember-addon-output",
           "codemodsSource": "ember-addon-codemods-manifest@1",
           "isBaseBlueprint": true,
-          "options": ["--no-welcome"]
+          "options": [
+            "--no-welcome"
+          ]
         }
       ]
     }

app/assets/javascripts/discourse-hbr/config/ember-try.js

@@ -1,119 +0,0 @@
-"use strict";
-
-const getChannelURL = require("ember-source-channel-url");
-const { embroiderSafe, embroiderOptimized } = require("@embroider/test-setup");
-
-module.exports = async function () {
-  return {
-    useYarn: true,
-    scenarios: [
-      {
-        name: "ember-lts-3.8",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.8.0",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.12",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.12.0",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.20",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.20.5",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.24",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.24.3",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.28",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-        },
-      },
-      {
-        name: "ember-release",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("release"),
-          },
-        },
-      },
-      {
-        name: "ember-beta",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("beta"),
-          },
-        },
-      },
-      {
-        name: "ember-canary",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("canary"),
-          },
-        },
-      },
-      // The default `.travis.yml` runs this scenario via `yarn test`,
-      // not via `ember try`. It's still included here so that running
-      // `ember try:each` manually or from a customized CI config will run it
-      // along with all the other scenarios.
-      {
-        name: "ember-default",
-        npm: {
-          devDependencies: {},
-        },
-      },
-      {
-        name: "ember-default-with-jquery",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "jquery-integration": true,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "@ember/jquery": "^0.5.1",
-          },
-        },
-      },
-      {
-        name: "ember-classic",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "application-template-wrapper": true,
-            "default-async-observers": false,
-            "template-only-glimmer-components": false,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-          ember: {
-            edition: "classic",
-          },
-        },
-      },
-      embroiderSafe(),
-      embroiderOptimized(),
-    ],
-  };
-};

app/assets/javascripts/discourse-hbr/config/environment.js

@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = function (/* environment, appConfig */) {
-  return {};
-};

app/assets/javascripts/discourse-hbr/ember-cli-build.js

@@ -3,7 +3,7 @@
 const EmberAddon = require("ember-cli/lib/broccoli/ember-addon");
 
 module.exports = function (defaults) {
-  let app = new EmberAddon(defaults, {
+  const app = new EmberAddon(defaults, {
     autoImport: {
       publicAssetURL: "",
     },

app/assets/javascripts/discourse-hbr/package.json

@@ -15,8 +15,8 @@
     "start": "ember serve"
   },
   "dependencies": {
-    "ember-auto-import": "^2.6.2",
+    "ember-auto-import": "^2.6.3",
-    "ember-cli-babel": "^7.26.10",
+    "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.2.0",
     "handlebars": "^4.7.6",
     "webpack": "^5.79.0"
@@ -24,17 +24,18 @@
   "devDependencies": {
     "@babel/core": "^7.21.4",
     "@ember/optional-features": "^2.0.0",
+    "@ember/string": "^3.0.1",
     "@embroider/test-setup": "^2.1.1",
     "@glimmer/component": "^1.1.2",
     "broccoli-asset-rev": "^3.0.0",
-    "ember-cli": "~3.28.5",
+    "ember-cli": "~4.12.0",
     "ember-cli-dependency-checker": "^3.3.1",
     "ember-cli-inject-live-reload": "^2.1.0",
     "ember-cli-sri": "^2.1.1",
     "ember-cli-terser": "^4.0.2",
     "ember-disable-prototype-extensions": "^1.1.3",
     "ember-load-initializers": "^2.1.1",
-    "ember-resolver": "^8.0.3",
+    "ember-resolver": "^10.0.0",
     "ember-source": "~3.28.11",
     "ember-source-channel-url": "^3.0.0",
     "loader.js": "^4.7.0"

app/assets/javascripts/discourse-hbr/tests/dummy/app/index.html

@@ -1,24 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>Dummy</title>
-    <meta name="description" content="">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-
-    {{content-for "head"}}
-
-    <link integrity="" rel="stylesheet" href="{{rootURL}}assets/vendor.css">
-    <link integrity="" rel="stylesheet" href="{{rootURL}}assets/dummy.css">
-
-    {{content-for "head-footer"}}
-  </head>
-  <body>
-    {{content-for "body"}}
-
-    <script src="{{rootURL}}assets/vendor.js"></script>
-    <script src="{{rootURL}}assets/dummy.js"></script>
-
-    {{content-for "body-footer"}}
-  </body>
-</html>

app/assets/javascripts/discourse-hbr/tests/index.html

@@ -1,39 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>Dummy Tests</title>
-    <meta name="description" content="">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-
-    {{content-for "head"}}
-    {{content-for "test-head"}}
-
-    <link rel="stylesheet" href="{{rootURL}}assets/vendor.css">
-    <link rel="stylesheet" href="{{rootURL}}assets/dummy.css">
-    <link rel="stylesheet" href="{{rootURL}}assets/test-support.css">
-
-    {{content-for "head-footer"}}
-    {{content-for "test-head-footer"}}
-  </head>
-  <body>
-    {{content-for "body"}}
-    {{content-for "test-body"}}
-
-    <div id="qunit"></div>
-    <div id="qunit-fixture">
-      <div id="ember-testing-container">
-        <div id="ember-testing"></div>
-      </div>
-    </div>
-
-    <script src="/testem.js" integrity="" data-embroider-ignore></script>
-    <script src="{{rootURL}}assets/vendor.js"></script>
-    <script src="{{rootURL}}assets/test-support.js"></script>
-    <script src="{{rootURL}}assets/dummy.js"></script>
-    <script src="{{rootURL}}assets/tests.js"></script>
-
-    {{content-for "body-footer"}}
-    {{content-for "test-body-footer"}}
-  </body>
-</html>

app/assets/javascripts/discourse-plugins/package.json

@@ -10,9 +10,9 @@
   "repository": "",
   "dependencies": {
     "discourse-widget-hbs": "1.0.0",
-    "ember-auto-import": "^2.6.2",
+    "ember-auto-import": "^2.6.3",
-    "ember-cli": "~3.28.5",
+    "ember-cli": "~4.12.0",
-    "ember-cli-babel": "^7.26.10",
+    "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.2.0",
     "webpack": "^5.79.0"
   },

app/assets/javascripts/discourse-widget-hbs/config/ember-cli-update.json

@@ -3,14 +3,16 @@
   "packages": [
     {
       "name": "ember-cli",
-      "version": "3.28.5",
+      "version": "4.12.0",
       "blueprints": [
         {
           "name": "addon",
           "outputRepo": "https://github.com/ember-cli/ember-addon-output",
           "codemodsSource": "ember-addon-codemods-manifest@1",
           "isBaseBlueprint": true,
-          "options": ["--no-welcome"]
+          "options": [
+            "--no-welcome"
+          ]
         }
       ]
     }

app/assets/javascripts/discourse-widget-hbs/config/ember-try.js

@@ -1,119 +0,0 @@
-"use strict";
-
-const getChannelURL = require("ember-source-channel-url");
-const { embroiderSafe, embroiderOptimized } = require("@embroider/test-setup");
-
-module.exports = async function () {
-  return {
-    useYarn: true,
-    scenarios: [
-      {
-        name: "ember-lts-3.8",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.8.0",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.12",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.12.0",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.20",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.20.5",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.24",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.24.3",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.28",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-        },
-      },
-      {
-        name: "ember-release",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("release"),
-          },
-        },
-      },
-      {
-        name: "ember-beta",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("beta"),
-          },
-        },
-      },
-      {
-        name: "ember-canary",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("canary"),
-          },
-        },
-      },
-      // The default `.travis.yml` runs this scenario via `yarn test`,
-      // not via `ember try`. It's still included here so that running
-      // `ember try:each` manually or from a customized CI config will run it
-      // along with all the other scenarios.
-      {
-        name: "ember-default",
-        npm: {
-          devDependencies: {},
-        },
-      },
-      {
-        name: "ember-default-with-jquery",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "jquery-integration": true,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "@ember/jquery": "^0.5.1",
-          },
-        },
-      },
-      {
-        name: "ember-classic",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "application-template-wrapper": true,
-            "default-async-observers": false,
-            "template-only-glimmer-components": false,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-          ember: {
-            edition: "classic",
-          },
-        },
-      },
-      embroiderSafe(),
-      embroiderOptimized(),
-    ],
-  };
-};

app/assets/javascripts/discourse-widget-hbs/config/environment.js

@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = function (/* environment, appConfig */) {
-  return {};
-};

app/assets/javascripts/discourse-widget-hbs/ember-cli-build.js

@@ -3,7 +3,7 @@
 const EmberAddon = require("ember-cli/lib/broccoli/ember-addon");
 
 module.exports = function (defaults) {
-  let app = new EmberAddon(defaults, {
+  const app = new EmberAddon(defaults, {
     autoImport: {
       publicAssetURL: "",
     },

app/assets/javascripts/discourse-widget-hbs/package.json

@@ -15,8 +15,8 @@
     "start": "ember serve"
   },
   "dependencies": {
-    "ember-auto-import": "^2.6.2",
+    "ember-auto-import": "^2.6.3",
-    "ember-cli-babel": "^7.26.10",
+    "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.2.0",
     "handlebars": "^4.7.6",
     "webpack": "^5.79.0"
@@ -24,18 +24,19 @@
   "devDependencies": {
     "@babel/core": "^7.21.4",
     "@ember/optional-features": "^2.0.0",
+    "@ember/string": "^3.0.1",
     "@embroider/test-setup": "^2.1.1",
     "@glimmer/component": "^1.1.2",
     "@glimmer/syntax": "^0.84.3",
     "broccoli-asset-rev": "^3.0.0",
-    "ember-cli": "~3.28.5",
+    "ember-cli": "~4.12.0",
     "ember-cli-dependency-checker": "^3.3.1",
     "ember-cli-inject-live-reload": "^2.1.0",
     "ember-cli-sri": "^2.1.1",
     "ember-cli-terser": "^4.0.2",
     "ember-disable-prototype-extensions": "^1.1.3",
     "ember-load-initializers": "^2.1.1",
-    "ember-resolver": "^8.0.3",
+    "ember-resolver": "^10.0.0",
     "ember-source": "~3.28.11",
     "ember-source-channel-url": "^3.0.0",
     "loader.js": "^4.7.0"

app/assets/javascripts/discourse-widget-hbs/tests/dummy/app/index.html

@@ -1,24 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>Dummy</title>
-    <meta name="description" content="">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-
-    {{content-for "head"}}
-
-    <link integrity="" rel="stylesheet" href="{{rootURL}}assets/vendor.css">
-    <link integrity="" rel="stylesheet" href="{{rootURL}}assets/dummy.css">
-
-    {{content-for "head-footer"}}
-  </head>
-  <body>
-    {{content-for "body"}}
-
-    <script src="{{rootURL}}assets/vendor.js"></script>
-    <script src="{{rootURL}}assets/dummy.js"></script>
-
-    {{content-for "body-footer"}}
-  </body>
-</html>

app/assets/javascripts/discourse-widget-hbs/tests/index.html

@@ -1,39 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>Dummy Tests</title>
-    <meta name="description" content="">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-
-    {{content-for "head"}}
-    {{content-for "test-head"}}
-
-    <link rel="stylesheet" href="{{rootURL}}assets/vendor.css">
-    <link rel="stylesheet" href="{{rootURL}}assets/dummy.css">
-    <link rel="stylesheet" href="{{rootURL}}assets/test-support.css">
-
-    {{content-for "head-footer"}}
-    {{content-for "test-head-footer"}}
-  </head>
-  <body>
-    {{content-for "body"}}
-    {{content-for "test-body"}}
-
-    <div id="qunit"></div>
-    <div id="qunit-fixture">
-      <div id="ember-testing-container">
-        <div id="ember-testing"></div>
-      </div>
-    </div>
-
-    <script src="/testem.js" integrity="" data-embroider-ignore></script>
-    <script src="{{rootURL}}assets/vendor.js"></script>
-    <script src="{{rootURL}}assets/test-support.js"></script>
-    <script src="{{rootURL}}assets/dummy.js"></script>
-    <script src="{{rootURL}}assets/tests.js"></script>
-
-    {{content-for "body-footer"}}
-    {{content-for "test-body-footer"}}
-  </body>
-</html>

app/assets/javascripts/discourse/.ember-cli

@@ -5,5 +5,11 @@
 
     Setting `disableAnalytics` to true will prevent any data from being sent.
   */
-  "disableAnalytics": false
+  "disableAnalytics": false,
+
+  /**
+    Setting `isTypeScriptProject` to true will force the blueprint generators to generate TypeScript
+    rather than JavaScript by default, when a TypeScript version of a given blueprint is available.
+  */
+  "isTypeScriptProject": false
 }

app/assets/javascripts/discourse/app/index.html

@@ -9,7 +9,6 @@
       that JS assets continue to be re-compiled when changes are made.
     -->
     <meta charset="utf-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <title>Discourse - Ember CLI</title>
     <meta name="description" content="">
     <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, user-scalable=yes, viewport-fit=cover">

app/assets/javascripts/discourse/config/ember-cli-update.json

@@ -3,14 +3,16 @@
   "packages": [
     {
       "name": "ember-cli",
-      "version": "3.28.5",
+      "version": "4.12.0",
       "blueprints": [
         {
           "name": "app",
           "outputRepo": "https://github.com/ember-cli/ember-new-output",
           "codemodsSource": "ember-app-codemods-manifest@1",
           "isBaseBlueprint": true,
-          "options": ["--no-welcome"]
+          "options": [
+            "--no-welcome"
+          ]
         }
       ]
     }

app/assets/javascripts/discourse/config/environment.js

@@ -1,7 +1,7 @@
 "use strict";
 
 module.exports = function (environment) {
-  let ENV = {
+  const ENV = {
     modulePrefix: "discourse",
     environment,
     rootURL: process.env.DISCOURSE_RELATIVE_URL_ROOT || "/",

app/assets/javascripts/discourse/ember-cli-build.js

@@ -13,8 +13,8 @@ const funnel = require("broccoli-funnel");
 const DeprecationSilencer = require("./lib/deprecation-silencer");
 
 module.exports = function (defaults) {
-  let discourseRoot = resolve("../../../..");
+  const discourseRoot = resolve("../../../..");
-  let vendorJs = discourseRoot + "/vendor/assets/javascripts/";
+  const vendorJs = discourseRoot + "/vendor/assets/javascripts/";
 
   // Silence deprecations which we are aware of - see `lib/deprecation-silencer.js`
   const ui = defaults.project.ui;
@@ -24,7 +24,7 @@ module.exports = function (defaults) {
   const isProduction = EmberApp.env().includes("production");
   const isTest = EmberApp.env().includes("test");
 
-  let app = new EmberApp(defaults, {
+  const app = new EmberApp(defaults, {
     autoRun: false,
     "ember-qunit": {
       insertContentForTestBody: false,
@@ -124,7 +124,7 @@ module.exports = function (defaults) {
       annotation: "TreeMerger (appTestTrees)",
     });
 
-    let tests = concat(appTestTrees, {
+    const tests = concat(appTestTrees, {
       inputFiles: ["**/tests/**/*-test.js"],
       headerFiles: ["vendor/ember-cli/tests-prefix.js"],
       footerFiles: ["vendor/ember-cli/app-config.js"],
@@ -133,7 +133,7 @@ module.exports = function (defaults) {
       sourceMapConfig: false,
     });
 
-    let testHelpers = concat(appTestTrees, {
+    const testHelpers = concat(appTestTrees, {
       inputFiles: [
         "**/tests/test-boot-ember-cli.js",
         "**/tests/helpers/**/*.js",

app/assets/javascripts/discourse/package.json

@@ -19,6 +19,7 @@
   "dependencies": {
     "@babel/core": "^7.21.4",
     "@babel/standalone": "^7.21.4",
+    "@ember/string": "^3.0.1",
     "@discourse/backburner.js": "^2.7.1-0",
     "@discourse/itsatrap": "^2.0.10",
     "@ember-compat/tracked-built-ins": "^0.9.1",
@@ -50,13 +51,13 @@
     "discourse-hbr": "1.0.0",
     "discourse-plugins": "1.0.0",
     "discourse-widget-hbs": "1.0.0",
-    "ember-auto-import": "^2.6.2",
+    "ember-auto-import": "^2.6.3",
     "ember-auto-import-chunks-json-generator": "^1.0.0",
     "ember-buffered-proxy": "^2.1.1",
     "ember-cached-decorator-polyfill": "^1.0.1",
-    "ember-cli": "~3.28.5",
+    "ember-cli": "~4.12.0",
     "ember-cli-app-version": "^6.0.0",
-    "ember-cli-babel": "^7.26.10",
+    "ember-cli-babel": "^7.26.11",
     "ember-cli-dependency-checker": "^3.3.1",
     "ember-cli-deprecation-workflow": "^2.1.0",
     "ember-cli-htmlbars": "^6.2.0",

app/assets/javascripts/discourse/tests/helpers/index.js

@@ -0,0 +1,42 @@
+import {
+  setupApplicationTest as upstreamSetupApplicationTest,
+  setupRenderingTest as upstreamSetupRenderingTest,
+  setupTest as upstreamSetupTest,
+} from "ember-qunit";
+
+// This file exists to provide wrappers around ember-qunit's / ember-mocha's
+// test setup functions. This way, you can easily extend the setup that is
+// needed per test type.
+
+function setupApplicationTest(hooks, options) {
+  upstreamSetupApplicationTest(hooks, options);
+
+  // Additional setup for application tests can be done here.
+  //
+  // For example, if you need an authenticated session for each
+  // application test, you could do:
+  //
+  // hooks.beforeEach(async function () {
+  //   await authenticateSession(); // ember-simple-auth
+  // });
+  //
+  // This is also a good place to call test setup functions coming
+  // from other addons:
+  //
+  // setupIntl(hooks); // ember-intl
+  // setupMirage(hooks); // ember-cli-mirage
+}
+
+function setupRenderingTest(hooks, options) {
+  upstreamSetupRenderingTest(hooks, options);
+
+  // Additional setup for rendering tests can be done here.
+}
+
+function setupTest(hooks, options) {
+  upstreamSetupTest(hooks, options);
+
+  // Additional setup for unit tests can be done here.
+}
+
+export { setupApplicationTest, setupRenderingTest, setupTest };

app/assets/javascripts/discourse/tests/index.html

@@ -2,7 +2,6 @@
 <html>
   <head>
     <meta charset="utf-8" />
-    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
     <title>Discourse Tests</title>
     <meta name="description" content="" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />

app/assets/javascripts/package.json

@@ -20,7 +20,8 @@
     "wizard"
   ],
   "resolutions": {
-    "**/babel-plugin-debug-macros": "npm:@discourse/babel-plugin-debug-macros@0.4.0-pre1"
+    "**/babel-plugin-debug-macros": "npm:@discourse/babel-plugin-debug-macros@0.4.0-pre1",
+    "**/babel-plugin-ember-template-compilation": "2.0.0"
   },
   "dependencies": {
     "patch-package": "^6.5.1",

app/assets/javascripts/patches/ember-cli+4.12.0.patch

@@ -0,0 +1,12 @@
+diff --git a/node_modules/ember-cli/lib/models/project.js b/node_modules/ember-cli/lib/models/project.js
+index b21a9bcd4..6537fcc2e 100644
+--- a/node_modules/ember-cli/lib/models/project.js
++++ b/node_modules/ember-cli/lib/models/project.js
+@@ -409,6 +409,7 @@ class Project {
+     @return {Object}       Bower dependencies
+    */
+   bowerDependencies(bower) {
++    return {}; // Silence deprecation until Discourse is on ember-source 4.x
+     deprecate(
+       [
+         '`bowerDependencies` has been deprecated.',

app/assets/javascripts/pretty-text/config/ember-cli-update.json

@@ -3,14 +3,16 @@
   "packages": [
     {
       "name": "ember-cli",
-      "version": "3.28.5",
+      "version": "4.12.0",
       "blueprints": [
         {
           "name": "addon",
           "outputRepo": "https://github.com/ember-cli/ember-addon-output",
           "codemodsSource": "ember-addon-codemods-manifest@1",
           "isBaseBlueprint": true,
-          "options": ["--no-welcome"]
+          "options": [
+            "--no-welcome"
+          ]
         }
       ]
     }

app/assets/javascripts/pretty-text/config/ember-try.js

@@ -1,119 +0,0 @@
-"use strict";
-
-const getChannelURL = require("ember-source-channel-url");
-const { embroiderSafe, embroiderOptimized } = require("@embroider/test-setup");
-
-module.exports = async function () {
-  return {
-    useYarn: true,
-    scenarios: [
-      {
-        name: "ember-lts-3.8",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.8.0",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.12",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.12.0",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.20",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.20.5",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.24",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.24.3",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.28",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-        },
-      },
-      {
-        name: "ember-release",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("release"),
-          },
-        },
-      },
-      {
-        name: "ember-beta",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("beta"),
-          },
-        },
-      },
-      {
-        name: "ember-canary",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("canary"),
-          },
-        },
-      },
-      // The default `.travis.yml` runs this scenario via `yarn test`,
-      // not via `ember try`. It's still included here so that running
-      // `ember try:each` manually or from a customized CI config will run it
-      // along with all the other scenarios.
-      {
-        name: "ember-default",
-        npm: {
-          devDependencies: {},
-        },
-      },
-      {
-        name: "ember-default-with-jquery",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "jquery-integration": true,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "@ember/jquery": "^0.5.1",
-          },
-        },
-      },
-      {
-        name: "ember-classic",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "application-template-wrapper": true,
-            "default-async-observers": false,
-            "template-only-glimmer-components": false,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-          ember: {
-            edition: "classic",
-          },
-        },
-      },
-      embroiderSafe(),
-      embroiderOptimized(),
-    ],
-  };
-};

app/assets/javascripts/pretty-text/config/environment.js

@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = function (/* environment, appConfig */) {
-  return {};
-};

app/assets/javascripts/pretty-text/ember-cli-build.js

@@ -3,7 +3,7 @@
 const EmberAddon = require("ember-cli/lib/broccoli/ember-addon");
 
 module.exports = function (defaults) {
-  let app = new EmberAddon(defaults, {
+  const app = new EmberAddon(defaults, {
     autoImport: {
       publicAssetURL: "",
     },

app/assets/javascripts/pretty-text/package.json

@@ -15,8 +15,8 @@
     "start": "ember serve"
   },
   "dependencies": {
-    "ember-auto-import": "^2.6.2",
+    "ember-auto-import": "^2.6.3",
-    "ember-cli-babel": "^7.26.10",
+    "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.2.0",
     "webpack": "^5.79.0",
     "xss": "^1.0.14"
@@ -24,17 +24,18 @@
   "devDependencies": {
     "@babel/core": "^7.21.4",
     "@ember/optional-features": "^2.0.0",
+    "@ember/string": "^3.0.1",
     "@embroider/test-setup": "^2.1.1",
     "@glimmer/component": "^1.1.2",
     "broccoli-asset-rev": "^3.0.0",
-    "ember-cli": "~3.28.5",
+    "ember-cli": "~4.12.0",
     "ember-cli-dependency-checker": "^3.3.1",
     "ember-cli-inject-live-reload": "^2.1.0",
     "ember-cli-sri": "^2.1.1",
     "ember-cli-terser": "^4.0.2",
     "ember-disable-prototype-extensions": "^1.1.3",
     "ember-load-initializers": "^2.1.1",
-    "ember-resolver": "^8.0.3",
+    "ember-resolver": "^10.0.0",
     "ember-source": "~3.28.11",
     "ember-source-channel-url": "^3.0.0",
     "loader.js": "^4.7.0"

app/assets/javascripts/pretty-text/tests/dummy/app/index.html

@@ -1,24 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>Dummy</title>
-    <meta name="description" content="">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-
-    {{content-for "head"}}
-
-    <link integrity="" rel="stylesheet" href="{{rootURL}}assets/vendor.css">
-    <link integrity="" rel="stylesheet" href="{{rootURL}}assets/dummy.css">
-
-    {{content-for "head-footer"}}
-  </head>
-  <body>
-    {{content-for "body"}}
-
-    <script src="{{rootURL}}assets/vendor.js"></script>
-    <script src="{{rootURL}}assets/dummy.js"></script>
-
-    {{content-for "body-footer"}}
-  </body>
-</html>

app/assets/javascripts/pretty-text/tests/index.html

@@ -1,39 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>Dummy Tests</title>
-    <meta name="description" content="">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-
-    {{content-for "head"}}
-    {{content-for "test-head"}}
-
-    <link rel="stylesheet" href="{{rootURL}}assets/vendor.css">
-    <link rel="stylesheet" href="{{rootURL}}assets/dummy.css">
-    <link rel="stylesheet" href="{{rootURL}}assets/test-support.css">
-
-    {{content-for "head-footer"}}
-    {{content-for "test-head-footer"}}
-  </head>
-  <body>
-    {{content-for "body"}}
-    {{content-for "test-body"}}
-
-    <div id="qunit"></div>
-    <div id="qunit-fixture">
-      <div id="ember-testing-container">
-        <div id="ember-testing"></div>
-      </div>
-    </div>
-
-    <script src="/testem.js" integrity="" data-embroider-ignore></script>
-    <script src="{{rootURL}}assets/vendor.js"></script>
-    <script src="{{rootURL}}assets/test-support.js"></script>
-    <script src="{{rootURL}}assets/dummy.js"></script>
-    <script src="{{rootURL}}assets/tests.js"></script>
-
-    {{content-for "body-footer"}}
-    {{content-for "test-body-footer"}}
-  </body>
-</html>

app/assets/javascripts/select-kit/config/ember-cli-update.json

@@ -3,14 +3,16 @@
   "packages": [
     {
       "name": "ember-cli",
-      "version": "3.28.5",
+      "version": "4.12.0",
       "blueprints": [
         {
           "name": "addon",
           "outputRepo": "https://github.com/ember-cli/ember-addon-output",
           "codemodsSource": "ember-addon-codemods-manifest@1",
           "isBaseBlueprint": true,
-          "options": ["--no-welcome"]
+          "options": [
+            "--no-welcome"
+          ]
         }
       ]
     }

app/assets/javascripts/select-kit/config/ember-try.js

@@ -1,119 +0,0 @@
-"use strict";
-
-const getChannelURL = require("ember-source-channel-url");
-const { embroiderSafe, embroiderOptimized } = require("@embroider/test-setup");
-
-module.exports = async function () {
-  return {
-    useYarn: true,
-    scenarios: [
-      {
-        name: "ember-lts-3.8",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.8.0",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.12",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.12.0",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.20",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.20.5",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.24",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.24.3",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.28",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-        },
-      },
-      {
-        name: "ember-release",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("release"),
-          },
-        },
-      },
-      {
-        name: "ember-beta",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("beta"),
-          },
-        },
-      },
-      {
-        name: "ember-canary",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("canary"),
-          },
-        },
-      },
-      // The default `.travis.yml` runs this scenario via `yarn test`,
-      // not via `ember try`. It's still included here so that running
-      // `ember try:each` manually or from a customized CI config will run it
-      // along with all the other scenarios.
-      {
-        name: "ember-default",
-        npm: {
-          devDependencies: {},
-        },
-      },
-      {
-        name: "ember-default-with-jquery",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "jquery-integration": true,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "@ember/jquery": "^0.5.1",
-          },
-        },
-      },
-      {
-        name: "ember-classic",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "application-template-wrapper": true,
-            "default-async-observers": false,
-            "template-only-glimmer-components": false,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-          ember: {
-            edition: "classic",
-          },
-        },
-      },
-      embroiderSafe(),
-      embroiderOptimized(),
-    ],
-  };
-};

app/assets/javascripts/select-kit/config/environment.js

@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = function (/* environment, appConfig */) {
-  return {};
-};

app/assets/javascripts/select-kit/ember-cli-build.js

@@ -3,7 +3,7 @@
 const EmberAddon = require("ember-cli/lib/broccoli/ember-addon");
 
 module.exports = function (defaults) {
-  let app = new EmberAddon(defaults, {
+  const app = new EmberAddon(defaults, {
     autoImport: {
       publicAssetURL: "",
     },

app/assets/javascripts/select-kit/package.json

@@ -15,25 +15,26 @@
     "start": "ember serve"
   },
   "dependencies": {
-    "ember-auto-import": "^2.6.2",
+    "ember-auto-import": "^2.6.3",
-    "ember-cli-babel": "^7.26.10",
+    "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.2.0",
     "webpack": "^5.79.0"
   },
   "devDependencies": {
     "@babel/core": "^7.21.4",
     "@ember/optional-features": "^2.0.0",
+    "@ember/string": "^3.0.1",
     "@embroider/test-setup": "^2.1.1",
     "@glimmer/component": "^1.1.2",
     "broccoli-asset-rev": "^3.0.0",
-    "ember-cli": "~3.28.5",
+    "ember-cli": "~4.12.0",
     "ember-cli-dependency-checker": "^3.3.1",
     "ember-cli-inject-live-reload": "^2.1.0",
     "ember-cli-sri": "^2.1.1",
     "ember-cli-terser": "^4.0.2",
     "ember-disable-prototype-extensions": "^1.1.3",
     "ember-load-initializers": "^2.1.1",
-    "ember-resolver": "^8.0.3",
+    "ember-resolver": "^10.0.0",
     "ember-source": "~3.28.11",
     "ember-source-channel-url": "^3.0.0",
     "loader.js": "^4.7.0"

app/assets/javascripts/truth-helpers/config/ember-cli-update.json

@@ -3,14 +3,16 @@
   "packages": [
     {
       "name": "ember-cli",
-      "version": "3.28.5",
+      "version": "4.12.0",
       "blueprints": [
         {
           "name": "addon",
           "outputRepo": "https://github.com/ember-cli/ember-addon-output",
           "codemodsSource": "ember-addon-codemods-manifest@1",
           "isBaseBlueprint": true,
-          "options": ["--no-welcome"]
+          "options": [
+            "--no-welcome"
+          ]
         }
       ]
     }

app/assets/javascripts/truth-helpers/config/ember-try.js

@@ -1,119 +0,0 @@
-"use strict";
-
-const getChannelURL = require("ember-source-channel-url");
-const { embroiderSafe, embroiderOptimized } = require("@embroider/test-setup");
-
-module.exports = async function () {
-  return {
-    useYarn: true,
-    scenarios: [
-      {
-        name: "ember-lts-3.24",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.24.3",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.28",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.20",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.20.5",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.24",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.24.3",
-          },
-        },
-      },
-      {
-        name: "ember-lts-3.28",
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-        },
-      },
-      {
-        name: "ember-release",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("release"),
-          },
-        },
-      },
-      {
-        name: "ember-beta",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("beta"),
-          },
-        },
-      },
-      {
-        name: "ember-canary",
-        npm: {
-          devDependencies: {
-            "ember-source": await getChannelURL("canary"),
-          },
-        },
-      },
-      // The default `.travis.yml` runs this scenario via `yarn test`,
-      // not via `ember try`. It's still included here so that running
-      // `ember try:each` manually or from a customized CI config will run it
-      // along with all the other scenarios.
-      {
-        name: "ember-default",
-        npm: {
-          devDependencies: {},
-        },
-      },
-      {
-        name: "ember-default-with-jquery",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "jquery-integration": true,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "@ember/jquery": "^0.5.1",
-          },
-        },
-      },
-      {
-        name: "ember-classic",
-        env: {
-          EMBER_OPTIONAL_FEATURES: JSON.stringify({
-            "application-template-wrapper": true,
-            "default-async-observers": false,
-            "template-only-glimmer-components": false,
-          }),
-        },
-        npm: {
-          devDependencies: {
-            "ember-source": "~3.28.0",
-          },
-          ember: {
-            edition: "classic",
-          },
-        },
-      },
-      embroiderSafe(),
-      embroiderOptimized(),
-    ],
-  };
-};

app/assets/javascripts/truth-helpers/config/environment.js

@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = function (/* environment, appConfig */) {
-  return {};
-};

app/assets/javascripts/truth-helpers/ember-cli-build.js

@@ -3,7 +3,7 @@
 const EmberAddon = require("ember-cli/lib/broccoli/ember-addon");
 
 module.exports = function (defaults) {
-  let app = new EmberAddon(defaults, {
+  const app = new EmberAddon(defaults, {
     autoImport: {
       publicAssetURL: "",
     },

app/assets/javascripts/truth-helpers/package.json

@@ -15,25 +15,26 @@
     "start": "ember serve"
   },
   "dependencies": {
-    "ember-auto-import": "^2.6.2",
+    "ember-auto-import": "^2.6.3",
-    "ember-cli-babel": "^7.26.10",
+    "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.2.0",
     "webpack": "^5.79.0"
   },
   "devDependencies": {
     "@babel/core": "^7.21.4",
     "@ember/optional-features": "^2.0.0",
+    "@ember/string": "^3.0.1",
     "@embroider/test-setup": "^2.1.1",
     "@glimmer/component": "^1.1.2",
     "broccoli-asset-rev": "^3.0.0",
-    "ember-cli": "~3.28.5",
+    "ember-cli": "~4.12.0",
     "ember-cli-dependency-checker": "^3.3.1",
     "ember-cli-inject-live-reload": "^2.1.0",
     "ember-cli-sri": "^2.1.1",
     "ember-cli-terser": "^4.0.2",
     "ember-disable-prototype-extensions": "^1.1.3",
     "ember-load-initializers": "^2.1.1",
-    "ember-resolver": "^8.0.3",
+    "ember-resolver": "^10.0.0",
     "ember-source": "~3.28.11",
     "ember-source-channel-url": "^3.0.0",
     "loader.js": "^4.7.0"

app/assets/javascripts/wizard/config/ember-cli-update.json

@@ -0,0 +1,20 @@
+{
+  "schemaVersion": "1.0.0",
+  "packages": [
+    {
+      "name": "ember-cli",
+      "version": "4.12.0",
+      "blueprints": [
+        {
+          "name": "addon",
+          "outputRepo": "https://github.com/ember-cli/ember-addon-output",
+          "codemodsSource": "ember-addon-codemods-manifest@1",
+          "isBaseBlueprint": true,
+          "options": [
+            "--no-welcome"
+          ]
+        }
+      ]
+    }
+  ]
+}

app/assets/javascripts/wizard/ember-cli-build.js

@@ -3,7 +3,7 @@
 const EmberAddon = require("ember-cli/lib/broccoli/ember-addon");
 
 module.exports = function (defaults) {
-  let app = new EmberAddon(defaults, {
+  const app = new EmberAddon(defaults, {
     autoImport: {
       publicAssetURL: "",
     },

app/assets/javascripts/wizard/package.json

@@ -15,8 +15,8 @@
     "start": "ember serve"
   },
   "dependencies": {
-    "ember-auto-import": "^2.6.2",
+    "ember-auto-import": "^2.6.3",
-    "ember-cli-babel": "^7.26.10",
+    "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.2.0",
     "webpack": "^5.79.0",
     "xss": "^1.0.14"
@@ -24,17 +24,18 @@
   "devDependencies": {
     "@babel/core": "^7.21.4",
     "@ember/optional-features": "^2.0.0",
+    "@ember/string": "^3.0.1",
     "@embroider/test-setup": "^2.1.1",
     "@glimmer/component": "^1.1.2",
     "broccoli-asset-rev": "^3.0.0",
-    "ember-cli": "~3.28.5",
+    "ember-cli": "~4.12.0",
     "ember-cli-dependency-checker": "^3.3.1",
     "ember-cli-inject-live-reload": "^2.1.0",
     "ember-cli-sri": "^2.1.1",
     "ember-cli-terser": "^4.0.2",
     "ember-disable-prototype-extensions": "^1.1.3",
     "ember-load-initializers": "^2.1.1",
-    "ember-resolver": "^8.0.3",
+    "ember-resolver": "^10.0.0",
     "ember-source": "~3.28.11",
     "ember-source-channel-url": "^3.0.0",
     "loader.js": "^4.7.0"