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runAndroid.js
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runAndroid.js
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/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
'use strict';
const chalk = require('chalk');
const child_process = require('child_process');
const fs = require('fs');
const path = require('path');
const isPackagerRunning = require('../util/isPackagerRunning');
const Promise = require('promise');
const adb = require('./adb');
/**
* Starts the app on a connected Android emulator or device.
*/
function runAndroid(argv, config, args) {
if (!checkAndroid(args.root)) {
console.log(chalk.red('Android project not found. Maybe run react-native android first?'));
return;
}
return isPackagerRunning().then(result => {
if (result === 'running') {
console.log(chalk.bold('JS server already running.'));
} else if (result === 'unrecognized') {
console.warn(chalk.yellow('JS server not recognized, continuing with build...'));
} else {
// result == 'not_running'
console.log(chalk.bold('Starting JS server...'));
startServerInNewWindow();
}
return buildAndRun(args);
});
}
function getAdbPath() {
return process.env.ANDROID_HOME
? process.env.ANDROID_HOME + '/platform-tools/adb'
: 'adb';
}
// Runs ADB reverse tcp:8081 tcp:8081 to allow loading the jsbundle from the packager
function tryRunAdbReverse(device) {
try {
const adbPath = getAdbPath();
const adbArgs = ['reverse', 'tcp:8081', 'tcp:8081'];
// If a device is specified then tell adb to use it
if (device) {
adbArgs.unshift('-s', device);
}
console.log(chalk.bold(
`Running ${adbPath} ${adbArgs.join(' ')}`
));
child_process.execFileSync(adbPath, adbArgs, {
stdio: [process.stdin, process.stdout, process.stderr],
});
} catch (e) {
console.log(chalk.yellow(
`Could not run adb reverse: ${e.message}`
));
}
}
// Builds the app and runs it on a connected emulator / device.
function buildAndRun(args) {
process.chdir(path.join(args.root, 'android'));
try {
adb.getDevices().map((device) => tryRunAdbReverse(device));
const cmd = process.platform.startsWith('win')
? 'gradlew.bat'
: './gradlew';
const gradleArgs = [];
if (args.variant) {
gradleArgs.push('install' +
args.variant[0].toUpperCase() + args.variant.slice(1)
);
} else if (args.flavor) {
console.warn(chalk.yellow(
'--flavor has been deprecated. Use --variant instead'
));
gradleArgs.push('install' +
args.flavor[0].toUpperCase() + args.flavor.slice(1)
);
} else {
gradleArgs.push('installDebug');
}
if (args.installDebug) {
gradleArgs.push(args.installDebug);
}
console.log(chalk.bold(
`Building and installing the app on the device (cd android && ${cmd} ${gradleArgs.join(' ')}...`
));
child_process.execFileSync(cmd, gradleArgs, {
stdio: [process.stdin, process.stdout, process.stderr],
});
} catch (e) {
console.log(chalk.red(
'Could not install the app on the device, read the error above for details.\n' +
'Make sure you have an Android emulator running or a device connected and have\n' +
'set up your Android development environment:\n' +
'https://facebook.github.io/react-native/docs/android-setup.html'
));
// stderr is automatically piped from the gradle process, so the user
// should see the error already, there is no need to do
// `console.log(e.stderr)`
return Promise.reject();
}
try {
const packageName = fs.readFileSync(
'app/src/main/AndroidManifest.xml',
'utf8'
).match(/package="(.+?)"/)[1];
const adbPath = getAdbPath();
const devices = adb.getDevices();
if (devices && devices.length > 0) {
devices.forEach((device) => {
const adbArgs = ['-s', device, 'shell', 'am', 'start', '-n', packageName + '/.MainActivity'];
console.log(chalk.bold(
`Starting the app on ${device} (${adbPath} ${adbArgs.join(' ')})...`
));
child_process.spawnSync(adbPath, adbArgs, {stdio: 'inherit'});
});
} else {
// If we cannot execute based on adb devices output, fall back to
// shell am start
const fallbackAdbArgs = [
'shell', 'am', 'start', '-n', packageName + '/.MainActivity'
];
console.log(chalk.bold(
`Starting the app (${adbPath} ${fallbackAdbArgs.join(' ')}...`
));
child_process.spawnSync(adbPath, fallbackAdbArgs, {stdio: 'inherit'});
}
} catch (e) {
console.log(chalk.red(
'adb invocation failed. Do you have adb in your PATH?'
));
// stderr is automatically piped from the gradle process, so the user
// should see the error already, there is no need to do
// `console.log(e.stderr)`
return Promise.reject();
}
}
function startServerInNewWindow() {
const yargV = require('yargs').argv;
const scriptFile = /^win/.test(process.platform) ?
'launchPackager.bat' :
'launchPackager.command';
const packagerDir = path.resolve(__dirname, '..', '..', 'packager');
const launchPackagerScript = path.resolve(packagerDir, scriptFile);
const procConfig = {cwd: packagerDir};
if (process.platform === 'darwin') {
if (yargV.open) {
return child_process.spawnSync('open', ['-a', yargV.open, launchPackagerScript], procConfig);
}
return child_process.spawnSync('open', [launchPackagerScript], procConfig);
} else if (process.platform === 'linux') {
procConfig.detached = true;
if (yargV.open){
return child_process.spawn(yargV.open,['-e', 'sh', launchPackagerScript], procConfig);
}
return child_process.spawn('sh', [launchPackagerScript], procConfig);
} else if (/^win/.test(process.platform)) {
procConfig.detached = true;
procConfig.stdio = 'ignore';
return child_process.spawn('cmd.exe', ['/C', 'start', launchPackagerScript], procConfig);
} else {
console.log(chalk.red(`Cannot start the packager. Unknown platform ${process.platform}`));
}
}
module.exports = {
name: 'run-android',
description: 'builds your app and starts it on a connected Android emulator or device',
func: runAndroid,
options: [{
command: '--install-debug',
}, {
command: '--root [string]',
description: 'Override the root directory for the android build (which contains the android directory)',
default: '',
}, {
command: '--flavor [string]',
description: '--flavor has been deprecated. Use --variant instead',
}, {
command: '--variant [string]',
}],
};