React Native Facebook SDK setup script for iOS Configuration

ios_setup.js

/*
 Copyright 2004-present Facebook. All Rights Reserved.

 A node script to help set up FBSDK frameworks for use with https://github.com/facebook/react-native-fbsdk
 after you have already run `rnpm install react-native-fbsdk`.

 Note that you need to create a Facebook App in https://developers.facebook.com/
 and get the Facebook APP ID and Facebook APP Name in order to set up the Info.plist.
 Usage:

 1. add to the 'script' section in package.json of your react-native project the following:
    '"ios:setup": "node ./node_modules/react-native-fbsdk/bin/ios_setup.js"'.
 2. do 'npm run ios:setup <AppID> <AppName>'.
 */

'use strict';

/* eslint-disable no-console */

const AdmZip = require('adm-zip');
const ProgressBar = require('progress');

const fall = require('fastfall')();
const fs = require('fs');
const got = require('got');
const path = require('path');
const plist = require('plist');
const pump = require('pump');
const xcode = require('xcode');

const progressBarPattern = '  downloading [:bar] :rate/bps :percent :etas';
const frameworkDir = 'ios/Frameworks/';
const zipFileName = 'fbsdk.zip';
const zipFilePath = path.join(frameworkDir, zipFileName);
const frameworkUrl =
	'https://origincache.facebook.com/developers/resources/?id=facebook-ios-sdk-current.zip';

// Get Facebook App ID and App Name.
if (process.argv.length <= 3) {
	console.log('Usage: ios_setup.js <APPID> <APPNAME>');
	process.exit(-1);
}

const appId = process.argv[2];
const appName = process.argv[3];

function downloadFbSdk(next) {
	try {
		fs.accessSync(frameworkDir, fs.F_OK);
	} catch (e) {
		fs.mkdirSync(frameworkDir);
	}

	var bar = null;
	var download = got
		.stream(frameworkUrl)
		.on('data', chunk => {
			bar.tick(chunk.length);
		})
		.on('response', res => {
			const len = parseInt(res.headers['content-length'], 10);
			bar = new ProgressBar(progressBarPattern, {
				complete: '=',
				incomplete: ' ',
				width: 20,
				total: len
			});
		});

	var writeToFile = fs.createWriteStream(zipFilePath);
	pump(download, writeToFile, next);
}

function unzipFramework(next) {
	console.log('Unzipping the framework');
	const zip = new AdmZip(zipFilePath);
	zip.extractAllTo(frameworkDir, true);
	fs.unlinkSync(zipFilePath);
	console.log('Framework Unzipped!');
	next();
}

function correctSearchPaths(next) {
	const rctfbsdkProjectPath =
		'./node_modules/react-native-fbsdk/ios/RCTFBSDK.xcodeproj/project.pbxproj';
	const rctfbsdkProject = xcode.project(rctfbsdkProjectPath);
	rctfbsdkProject.parse(function(err) {
		if (err) {
			return next(err);
		}
		rctfbsdkProject.updateBuildProperty(
			'FRAMEWORK_SEARCH_PATHS',
			'"$(PROJECT_DIR)/../../../ios/Frameworks"'
		);
		fs.writeFileSync(rctfbsdkProjectPath, rctfbsdkProject.writeSync());
		console.log('Updated RCTFBSDK FRAMEWORK_SEARCH_PATHS');
		next();
	});
}

function updateFBSDKFrameworks(next) {
	const files = fs.readdirSync('./ios/');
	var myProjName = files.filter(f => {
		return f.substr(-10) === '.xcodeproj';
	})[0];
	const myProjPath = path.join('./ios/', myProjName, '/project.pbxproj');
	myProjName = myProjName.replace('.xcodeproj', '');
	console.log('Updating target:' + myProjName + ' at ' + myProjPath + ' ...');

	const myProj = xcode.project(myProjPath);
	myProj.parse(function(err) {
		if (err) {
			return next(err);
		}
		myProj.pbxCreateGroup('Frameworks', './ios/Frameworks');

		// NOTE: Assumes first target is the app.
		const target = myProj.getFirstTarget().uuid;
		myProj.addFramework('./ios/Frameworks/FBSDKCoreKit.framework', {
			customFramework: true,
			target: target,
			link: true
		});
		myProj.addFramework('./ios/Frameworks/FBSDKShareKit.framework', {
			customFramework: true,
			target: target,
			link: true
		});
		myProj.addFramework('./ios/Frameworks/FBSDKLoginKit.framework', {
			customFramework: true,
			target: target,
			link: true
		});

		// WARNING: this will overwrite any existing search paths
		myProj.updateBuildProperty(
			'FRAMEWORK_SEARCH_PATHS',
			'"$(PROJECT_DIR)/Frameworks/"'
		);
		fs.writeFileSync(myProjPath, myProj.writeSync());
		console.log('Finished updating ' + myProjPath);

		next(null, files);
	});
}

function updatePlist(files, next) {
	console.dir(files);
	var plistDirPath = '';
	files
		.map(function(file) {
			return path.join('./ios/', file);
		})
		.filter(function(file) {
			return fs.statSync(file).isDirectory();
		})
		.forEach(function(file) {
			if (fs.readdirSync(file).indexOf('Base.lproj') !== -1) {
				plistDirPath = file;
			}
		});
	const plistFilePath = path.join(plistDirPath, '/Info.plist');
	const plistFile = fs.readFileSync(plistFilePath, 'utf8');
	const plistObject = plist.parse(plistFile);
	plistObject.CFBundleURLTypes = [{ CFBundleURLSchemes: ['fb' + appId] }];
	plistObject.FacebookAppID = appId;
	plistObject.FacebookDisplayName = appName;
	plistObject.LSApplicationQueriesSchemes = [
		'fbapi',
		'fb-messenger-api',
		'fbauth2',
		'fbshareextension'
	];
	plistObject.NSLocationWhenInUseUsageDescription = '';
	fs.writeFileSync(plistFilePath, plist.build(plistObject));
	console.log('Finished updating ' + plistFilePath);
	next();
}

function done(err) {
	if (err) {
		console.error(err);
	} else {
		console.log('DONE!');
	}
}

fall(
	[
		downloadFbSdk,
		unzipFramework,
		correctSearchPaths,
		updateFBSDKFrameworks,
		updatePlist
	],
	done
);