Add npm run android, remove unused deps.

Closes expo#40.

Author: anp

react-native-scripts/package.json

@@ -30,11 +30,10 @@
     "fs-promise": "^1.0.0",
     "indent-string": "^3.0.0",
     "inquirer": "^3.0.1",
-    "jscodeshift": "^0.3.30",
     "match-require": "^2.0.0",
     "path-exists": "^3.0.0",
     "qrcode-terminal": "^0.11.0",
-    "xdl": "^31.1.0"
+    "xdl": "^32.0.0"
   },
   "devDependencies": {
     "babel-plugin-add-module-exports": "^0.2.1",

react-native-scripts/src/bin/react-native-scripts.js

@@ -8,6 +8,7 @@ const args = process.argv.slice(3);
 const validCommands = [
   'build',
   'eject',
+  'android',
   'ios',
   'start',
   'test',

react-native-scripts/src/scripts/android.js

@@ -0,0 +1,52 @@
+import { Android, Config, ProjectSettings, UrlUtils } from "xdl";
+
+import chalk from "chalk";
+import indent from "indent-string";
+import path from "path";
+import pathExists from "path-exists";
+import qr from "qrcode-terminal";
+
+import packager from "../util/packager";
+
+Config.validation.reactNativeVersionWarnings = false;
+Config.developerTool = "crna";
+Config.offline = true;
+
+const command: string = pathExists.sync(path.join(process.cwd(), "yarn.lock"))
+  ? "yarnpkg"
+  : "npm";
+
+packager.run(startAndroidAndPrintInfo);
+
+// print a nicely formatted message with setup information
+async function startAndroidAndPrintInfo() {
+  const address = await UrlUtils.constructManifestUrlAsync(process.cwd());
+  console.log(chalk.blue("Starting Android..."));
+
+  const { success, error } = await Android.openProjectAsync(process.cwd());
+
+  qr.generate(address, qrCode => {
+    console.log(
+      `To view your app with live reloading, point the Exponent app to this QR code:
+
+${indent(qrCode, 2)}
+
+You'll find the QR scanner on the Projects tab of the app, under the '+' menu.
+
+Or enter this address in the Exponent app's search bar:
+
+  ${chalk.underline(chalk.cyan(address))}
+
+Your phone will need to be on the same local network as this computer.
+
+For links to install the Exponent app, please visit ${chalk.underline(chalk.cyan("https://getexponent.com"))}.
+
+Logs from serving your app will appear here. Press Ctrl+C at any time to stop.
+`
+    );
+  });
+
+  if (!success) {
+    console.log(chalk.red(error.message));
+  }
+}

react-native-scripts/src/scripts/init.js

@@ -37,6 +37,7 @@ module.exports = async (appPath: string, appName: string, verbose: boolean) => {
     start: "react-native-scripts start",
     build: "react-native-scripts build",
     eject: "react-native-scripts eject",
+    android: "react-native-scripts android",
     ios: "react-native-scripts ios",
     test: "node node_modules/jest/bin/jest.js",
   };