[Feat] Add support for .xcode.env file in init and doctor commands

Author: Riccardo Cipolleschi

packages/cli-doctor/src/tools/healthchecks/index.ts

@@ -11,6 +11,7 @@ import cocoaPods from './cocoaPods';
 import iosDeploy from './iosDeploy';
 import {Healthchecks, HealthCheckCategory} from '../../types';
 import loadConfig from '@react-native-community/cli-config';
+import xcodeEnv from './xcodeEnv';
 
 export const HEALTHCHECK_TYPES = {
   ERROR: 'ERROR',
@@ -55,7 +56,7 @@ export const getHealthchecks = ({contributor}: Options): Healthchecks => {
       ? {
           ios: {
             label: 'iOS',
-            healthchecks: [xcode, cocoaPods, iosDeploy],
+            healthchecks: [xcode, cocoaPods, iosDeploy, xcodeEnv],
           },
         }
       : {}),

packages/cli-doctor/src/tools/healthchecks/xcodeEnv.ts

@@ -0,0 +1,21 @@
+import {HealthCheckInterface} from '../../types';
+import fs from "fs";
+import { promisify } from 'util';
+
+export default {
+    label: '.xcode.env',
+    description: 'File to customize Xcode environment',
+  getDiagnostics: async () => {
+    return {
+      needsToBeFixed: fs.existsSync("./ios/.xcode.env")
+    };
+  },
+  runAutomaticFix: async () => {
+    const filePath = '/ios/.xcode.env';
+    const src = "./node_modules/react-native/template" + filePath;
+    const dest = "." + filePath;
+
+    const copyFileAsync = promisify(fs.copyFile);
+    await copyFileAsync(src, dest);
+  },
+} as HealthCheckInterface;

packages/cli/src/commands/init/editTemplate.ts

@@ -69,6 +69,7 @@ const UNDERSCORED_DOTFILES = [
   'editorconfig',
   'bundle',
   'ruby-version',
+  'xcode.env'
 ];
 
 async function processDotfiles(filePath: string) {

packages/cli/src/tools/generator/copyProjectTemplateAndReplace.ts

@@ -148,7 +148,8 @@ function translateFilePath(filePath: string) {
     .replace('_prettierrc.js', '.prettierrc.js')
     .replace('_bundle', '.bundle')
     .replace('_ruby-version', '.ruby-version')
-    .replace('_watchmanconfig', '.watchmanconfig');
+    .replace('_watchmanconfig', '.watchmanconfig')
+    .replace('_xcode.env', '.xcode.env');
 }
 
 function upgradeFileContentChangedCallback(