fixed issue which caused always using yarn as the packager

[feat] add support for Yarn + inheriting exec process

.gitignore

@@ -34,10 +34,6 @@ local.properties
 #
 .vscode/
 
-# TypeScript
-#
-lib/
-
 # node.js
 #
 node_modules/

.npmignore

@@ -1,3 +1 @@
 .travis.yml
-README.md
-LICENSE

App.tsx

@@ -0,0 +1,60 @@
+/**
+ * Sample React Native App
+ * https://github.com/facebook/react-native
+ * 
+ * Generated with the TypeScript template
+ * https://github.com/emin93/react-native-template-typescript
+ */
+
+import * as React from 'react';
+import {
+  Platform,
+  StyleSheet,
+  Text,
+  View
+} from 'react-native';
+
+const instructions = Platform.select({
+  ios: 'Press Cmd+R to reload,\n' +
+    'Cmd+D or shake for dev menu',
+  android: 'Double tap R on your keyboard to reload,\n' +
+    'Shake or press menu button for dev menu',
+});
+
+interface Props {};
+export default class App extends React.Component<Props> {
+  render() {
+    return (
+      <View style={styles.container}>
+        <Text style={styles.welcome}>
+          Welcome to React Native!
+        </Text>
+        <Text style={styles.instructions}>
+          To get started, edit App.tsx
+        </Text>
+        <Text style={styles.instructions}>
+          {instructions}
+        </Text>
+      </View>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    justifyContent: 'center',
+    alignItems: 'center',
+    backgroundColor: '#F5FCFF',
+  },
+  welcome: {
+    fontSize: 20,
+    textAlign: 'center',
+    margin: 10,
+  },
+  instructions: {
+    textAlign: 'center',
+    color: '#333333',
+    marginBottom: 5,
+  },
+});

README.md

@@ -2,8 +2,18 @@
 
 Clean and minimalist React Native template for a quick start with TypeScript.
 
+[![Header](https://cdn-images-1.medium.com/max/500/1*E9RnPOATuhjuNrlFkv5oSg.jpeg)](https://medium.com/@emin93/react-native-typescript-b965059109d3)
+
 This template can be used with the React Native CLI, which means it doesn't mess with the platform specific files. Instead of including a lot of dependencies, my aim when creating this template was to provide a very easy and minimalist way to start your React Native project with TypeScript. Of course you can always include other dependencies as you need them.
 
+## :star: Features
+
+-   Seamless integration with the React Native CLI! :sparkles:
+-   Consistent with the default React Native template (no additional stuff)
+-   React Native TypeScript transformer directly integrated into the packager (no separate process for `tsc`)
+-   Unit testing in TypeScript with TS Jest
+-   Always latest dependencies :raised_hands:
+
 ## :arrow_forward: Quick Start
 
 ```
@@ -16,26 +26,28 @@ node setup.js
 
 ### What is included in this template?
 
-- [TypeScript](https://github.com/Microsoft/TypeScript)
-- [TypeScript type definitions for React & React Native](https://github.com/DefinitelyTyped/DefinitelyTyped)
-- [TSLint](https://github.com/palantir/tslint)
-- [TSLint React](https://github.com/palantir/tslint-react)
+-   [TypeScript](https://github.com/Microsoft/TypeScript)
+-   [React Native TypeScript transformer](https://github.com/ds300/react-native-typescript-transformer)
+-   [Type definitions for React & React Native](https://github.com/DefinitelyTyped/DefinitelyTyped)
+-   [TS Jest](https://github.com/kulshekhar/ts-jest)
 
 This template always uses the latest versions of the dependencies at the time when the setup script (`node setup.js`) is being executed. This means you don't have to worry about old versions.
 
+Lots of :heart: and credits to the owners and maintainers of those packages.
+
 ### Why the setup script?
 
 The React Native CLI supports automatic installation of production dependencies only. Since TypeScript and the other dependencies are dev dependencies, the setup script is being used to install those. It also takes care of obsolete files like the `.flowconfig` and the `setup.js` itself after the setup.
 
-### What about Jest?
-
-This template does not cover Jest yet. For more info on the current status check the [open issue](https://github.com/emin93/react-native-template-typescript/issues/1).
-
 ### How will this template affect the React Native CLI workflow?
 
 The React Native CLI will do everything just as without a template and afterwards overwrite the files with the ones from this template. This means you don't have to worry about incompatibility issues with later React Native upgrades.
 
-## :hearts: Contributing
+## :globe_with_meridians: Links
+
+-   ["Using React Native with TypeScript just became simple" on Medium](https://medium.com/@emin93/react-native-typescript-b965059109d3)
+
+## :computer: Contributing
 
 Contributions are very welcome. Please try to stay consistent with the other files I've created.
 

__tests__/App.tsx

@@ -0,0 +1,12 @@
+import 'react-native';
+import * as React from 'react';
+import App from '../App';
+
+// Note: test renderer must be required after react-native.
+import * as renderer from 'react-test-renderer';
+
+it('renders correctly', () => {
+  const tree = renderer.create(
+    <App />
+  );
+});

devDependencies.json

@@ -1,8 +1,8 @@
 [
     "typescript",
-    "tslint",
-    "tslint-react",
+    "react-native-typescript-transformer",
+    "ts-jest",
     "@types/react",
     "@types/react-native",
-    "npm-run-all"
+    "@types/jest"
 ]

index.js

@@ -1,4 +0,0 @@
-import { AppRegistry } from 'react-native';
-import App from './lib/App';
-
-AppRegistry.registerComponent('HelloWorld', () => App);

jest.json

@@ -0,0 +1,15 @@
+{
+    "transform": {
+        "^.+\\.tsx?$": "ts-jest"
+    },
+    "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
+    "moduleFileExtensions": [
+        "ts",
+        "tsx",
+        "js",
+        "jsx",
+        "json",
+        "node"
+    ],
+    "modulePaths": ["<rootDir>"]
+}

package.json

@@ -10,10 +10,10 @@
         "url": "git+https://github.com/emin93/react-native-template-typescript.git"
     },
     "keywords": [
-        "react",
-        "native",
-        "template",
+        "react-native",
         "typescript",
+        "jest",
+        "template",
         "boilerplate"
     ],
     "author": "Emin Khateeb <emin@emin.ch>",

rn-cli.config.js

@@ -0,0 +1,8 @@
+module.exports = {
+    getTransformModulePath() {
+        return require.resolve('react-native-typescript-transformer');
+    },
+    getSourceExts() {
+        return ['ts', 'tsx'];
+    }
+}

setup.js

@@ -3,22 +3,44 @@ const path = require('path');
 const { execSync } = require('child_process');
 
 const packageJson = require('./package.json');
+const jestJson = require('./jest.json');
 const devDependencies = require('./devDependencies.json');
 
 const deleteFile = (fileName) => fs.unlinkSync(path.join(process.cwd(), fileName));
 const writeFile = (fileName, data) => fs.writeFileSync(path.join(process.cwd(), fileName), data);
+const isYarnAvailable = () => {
+    try {
+        execSync('yarnpkg --version', { stdio: 'ignore' });
+        return true;
+    } catch (e) {
+        return false;
+    }
+}
 
-packageJson.scripts.rn = packageJson.scripts.start;
-packageJson.scripts.ts = 'node_modules/.bin/tsc -w';
-packageJson.scripts.start = 'npm-run-all -p -r rn ts';
-packageJson.scripts.lint = 'tslint -c tslint.json "src/**/*.{ts,tsx}"';
+const packager = isYarnAvailable() ? 'yarn' : 'npm';
+const execOptions = { stdio: 'inherit' };
+
+console.log('\n🔄 Please wait...\n');
+
+packageJson.scripts.start = `${packageJson.scripts.start} --config ../../../../rn-cli.config.js`;
+packageJson.jest = Object.assign(packageJson.jest, jestJson);
 writeFile('package.json', JSON.stringify(packageJson, null, 2));
 
-execSync(`npm i ${devDependencies.join(' ')} --save-dev --save-exact`);
+console.log(`\n📦 Installing dependencies with ${packager}...\n`);
+
+if (packager === 'yarn') {
+    execSync(`yarn add ${devDependencies.join(' ')} --dev --exact`, execOptions);
+} else {
+    execSync(`npm i ${devDependencies.join(' ')} --save-dev --save-exact`, execOptions);
+}
 
 deleteFile('App.js');
+deleteFile('__tests__/App.js');
 deleteFile('.flowconfig');
 deleteFile('devDependencies.json');
+deleteFile('jest.json');
+deleteFile('README.md');
+deleteFile('LICENSE');
 deleteFile('setup.js');
 
-console.log('✅ Setup completed! You can now start with: npm start');
+console.log(`\n✅ Setup completed! You can now start with: ${packager} start\n`);

src/App.tsx

@@ -1,54 +0,0 @@
-import * as React from "react";
-import { Platform, StyleSheet, Text, View } from "react-native";
-
-const instructions = Platform.select({
-    android: "Double tap R on your keyboard to reload,\n" +
-        "Shake or press menu button for dev menu",
-    ios: "Press Cmd+R to reload,\n" +
-        "Cmd+D or shake for dev menu",
-});
-
-interface IProps {
-    exampleProp: string;
-}
-
-interface IState {
-    exampleState: string;
-}
-
-export default class App extends React.Component<IProps, IState> {
-    public render() {
-        return (
-            <View style={styles.container}>
-                <Text style={styles.welcome}>
-                    Welcome to React Native!
-                </Text>
-                <Text style={styles.instructions}>
-                    To get started, edit src/App.tsx
-                </Text>
-                <Text style={styles.instructions}>
-                    {instructions}
-                </Text>
-            </View>
-        );
-    }
-}
-
-const styles = StyleSheet.create({
-    container: {
-        alignItems: "center",
-        backgroundColor: "#F5FCFF",
-        flex: 1,
-        justifyContent: "center",
-    },
-    instructions: {
-        color: "#333333",
-        marginBottom: 5,
-        textAlign: "center",
-    },
-    welcome: {
-        fontSize: 20,
-        margin: 10,
-        textAlign: "center",
-    },
-});

tsconfig.json

@@ -1,58 +1,12 @@
 {
-  "compilerOptions": {
-    /* Basic Options */
-    "target": "es6",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
-    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
-    // "lib": [],                             /* Specify library files to be included in the compilation. */
-    // "allowJs": true,                       /* Allow javascript files to be compiled. */
-    // "checkJs": true,                       /* Report errors in .js files. */
-    "jsx": "react",                           /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
-    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
-    "sourceMap": true,                        /* Generates corresponding '.map' file. */
-    // "outFile": "./",                       /* Concatenate and emit output to single file. */
-    "outDir": "./lib",                        /* Redirect output structure to the directory. */
-    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
-    // "removeComments": true,                /* Do not emit comments to output. */
-    // "noEmit": true,                        /* Do not emit outputs. */
-    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
-    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
-    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
-
-    /* Strict Type-Checking Options */
-    "strict": true,                           /* Enable all strict type-checking options. */
-    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
-    // "strictNullChecks": true,              /* Enable strict null checks. */
-    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
-    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
-    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
-    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
-
-    /* Additional Checks */
-    // "noUnusedLocals": true,                /* Report errors on unused locals. */
-    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
-    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
-    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
-
-    /* Module Resolution Options */
-    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
-    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
-    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
-    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
-    // "typeRoots": [],                       /* List of folders to include type definitions from. */
-    // "types": [],                           /* Type declaration files to be included in compilation. */
-    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
-    "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
-    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
-
-    /* Source Map Options */
-    // "sourceRoot": "./",                    /* Specify the location where debugger should locate TypeScript files instead of source locations. */
-    // "mapRoot": "./",                       /* Specify the location where debugger should locate map files instead of generated locations. */
-    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
-    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
-
-    /* Experimental Options */
-    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
-    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
-  },
-  "include": ["./src"]
+    "compilerOptions": {
+        "target": "es2015",
+        "jsx": "react",
+        "noEmit": true,
+        "moduleResolution": "node",
+        "noImplicitAny": true
+    },
+    "exclude": [
+        "node_modules"
+    ]
 }

tslint.json

@@ -1,10 +0,0 @@
-{
-    "defaultSeverity": "error",
-    "extends": [
-        "tslint:recommended",
-        "tslint-react"
-    ],
-    "jsRules": {},
-    "rules": {},
-    "rulesDirectory": []
-}