fix(typescript): create type declarations during build

Requires additional tsconfig.json as otherwise VS Code will only check files part of the tree (no tests). release-npm

Author: tobua

customize.js

@@ -11,6 +11,7 @@ const files = [
   'package.json',
   'README.md',
   'tsconfig.json',
+  'tsconfig-build.json',
 ]
 
 // Replace template values with plugin name.

template/package.json

@@ -4,15 +4,17 @@
   "license": "MIT",
   "main": "dist/index.js",
   "type": "module",
+  "types": "dist/index.d.ts",
   "exports": {
     ".": "./dist/index.js",
     "./package.json": "./package.json"
   },
   "scripts": {
     "app": "node create-app.js",
-    "build": "esbuild index.tsx --outdir=dist --bundle --minify --format=esm --sourcemap --external:react-native --external:react",
+    "build": "esbuild index.tsx --outdir=dist --bundle --minify --format=esm --sourcemap --external:react-native --external:react && npm run build:types",
     "watch": "concurrently --kill-others \"npm run build:watch\" \"npm run copy\"",
     "copy": "cpx 'dist/**/*' app/node_modules/<%= name %>/dist --watch",
+    "build:types": "tsc --project tsconfig-build.json",
     "build:watch": "esbuild index.tsx --watch --outdir=dist --bundle --format=esm --sourcemap --external:react-native --external:react",
     "test": "jest",
     "test:watch": "jest --watchAll",

template/tsconfig-build.json

@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "noEmit": false,
+    "emitDeclarationOnly": true,
+  },
+  "include": ["index.tsx"]
+}

template/tsconfig.json

@@ -5,14 +5,16 @@
     "lib": ["es2017"],
     "allowJs": true,
     "jsx": "react-native",
-    "noEmit": true,
     "isolatedModules": true,
     "strict": true,
     "moduleResolution": "node",
     "allowSyntheticDefaultImports": true,
     "esModuleInterop": true,
     "skipLibCheck": true,
     "resolveJsonModule": true,
+    "declaration": true,
+    "noEmit": true,
+    "outDir": "dist",
     "paths": {
       "<%= name %>": ["."]
     }