Add TypeScript checking via JSDoc type annotations

.editorconfig

@@ -0,0 +1,8 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+insert_final_newline = true

.eslintignore

@@ -0,0 +1 @@
+output/

.eslintrc.json

@@ -0,0 +1,15 @@
+{
+  "extends": "./node_modules/gts/",
+  // This is needed until support for mjs files is added to gts
+  // (https://github.com/google/gts/issues/655)
+  "overrides": [
+    {
+      "files": ["**/*.mjs"],
+      "parserOptions": {
+        // 2022 (13) supports import.meta and top-level await
+        "ecmaVersion": 2022,
+        "sourceType": "module"
+      }
+    }
+  ]
+}

.gitignore

@@ -1,2 +1,6 @@
+.DS_Store
+.vscode/
+config.yaml
 output/
 node_modules/
+tsconfig.tsbuildinfo

.prettierrc.js

@@ -0,0 +1,3 @@
+module.exports = {
+  ...require('gts/.prettierrc.json')
+}

.vscode.suggestion/extensions.json

@@ -0,0 +1,7 @@
+{
+  "recommendations": [
+    "dbaeumer.vscode-eslint",
+    "EditorConfig.EditorConfig",
+    "esbenp.prettier-vscode"
+  ]
+}

.vscode.suggestion/settings.json

@@ -0,0 +1,22 @@
+{
+  "files.associations": {
+    "*.gradle.handlebars": "gradle",
+    "*.json.handlebars": "handlebars",
+    "*.kt.handlebars": "kotlin",
+    "*.md.handlebars": "markdown",
+    "*.swift.handlebars": "swift",
+    "*.xml.handlebars": "xml"
+  },
+  // Disabled because Kotlin project not configured in this repo, causing errors
+  // in all .kt.handlebars files
+  "kotlin.languageServer.enabled": false,
+  "typescript.preferences.importModuleSpecifier": "relative",
+  "typescript.preferences.importModuleSpecifierEnding": "auto",
+  "typescript.preferences.quoteStyle": "single",
+  "typescript.tsdk": "node_modules/typescript/lib",
+  "typescript.enablePromptUseWorkspaceTsdk": true,
+  "[javascript][json][jsonc][typescript][yaml]": {
+    "editor.defaultFormatter": "esbenp.prettier-vscode",
+    "editor.formatOnSave": true
+  }
+}

README.md

@@ -8,6 +8,10 @@ To verify that your system has the necessary dependencies to generate your web w
 ./doctor
 ```
 
+### VS Code
+
+If you’re developing in VS Code you may want to copy [`.vscode.suggestion/settings.json`](.vscode.suggestion/settings.json) into `.vscode/settings.json` to apply some development settings.
+
 ## Building the app project for **iOS**
 
 > [!WARNING]

config-sample.yaml

@@ -0,0 +1,13 @@
+additionalDomains:
+  - medium.com
+appName: 'Jigsaw'
+entryUrl: 'https://jigsaw.google.com'
+smartDialerConfig:
+  dns:
+    - https:
+        name: 9.9.9.9
+  tls:
+    - ''
+    - split:1
+    - split:2
+    - tlsfrag:1