nativescript-app-sync8/scripts/ios/appsync-ios.js

Use AppSync to hot deploy updates to your app.

const fs = require('fs'),
	path = require('path'),
	prepareHooksHelper = require("../prepare-hooks-helper");





// inject some code into main.m
function patchUIApplicationMain(iosProjectFolder) {
	try {
		const nsInteralFolder = path.join(iosProjectFolder, "internal");
		if (!fs.existsSync(nsInteralFolder)) {
			console.log("iOS not installed, skipping AppSync hook.");
			return;
		}

		//console.log('+++++++++++++++++++++++++++++++++ AppSync: patch main.m');

		const appSyncFileDest = path.join(nsInteralFolder, "main.m");
		const tnsAppSyncFileDestContents = fs.readFileSync(appSyncFileDest,  { encoding: 'utf8' });




		// making sure we don't do this more than once
		if (tnsAppSyncFileDestContents.indexOf("TNSAppSync") === -1) {

			// let's first inject a header we need
			replaceInFile(
				appSyncFileDest,
				'#import <NativeScript/NativeScript.h>',
				'#import <NativeScript/NativeScript.h>\n#include <AppSync/TNSAppSync.h>'
			);

			// now inject the function call that determines the correct application path (either default or appsync'ed)

			replaceInFile(
				appSyncFileDest,
				'baseDir = [[NSBundle mainBundle] resourcePath];',
				'baseDir = [TNSAppSync applicationPathWithDefault:[NSBundle mainBundle].bundlePath];'
			);

			replaceInFile(
				appSyncFileDest,
				'config.BaseDir = baseDir;',
				'config.BaseDir = [TNSAppSync applicationPathWithDefault:baseDir];'
			);

		}

	} catch (e) {
		console.log("AppSync iOS hook error: " + e);
	}
}

function replaceInFile(theFile, what, by) {
	const contents = fs.readFileSync(theFile, 'utf8');
	const result = contents.replace(what, by);
	fs.writeFileSync(theFile, result, 'utf8');
}

module.exports = function($injector, hookArgs) {
	const platform = prepareHooksHelper.getPlatformFromPrepareHookArgs(hookArgs);

	if (platform === 'ios') {
		const iosProjectFolder = prepareHooksHelper.getNativeProjectDir($injector, platform, hookArgs);
		patchUIApplicationMain(iosProjectFolder);
	}
};