fix: add codegen for non-ios frontends; updated e2e test for iOS frontend (#749)

Author: phani-srikar

packages/amplify-codegen-e2e-core/src/utils/graphql-config-helper.ts

@@ -35,6 +35,7 @@ export function constructGraphQLConfig(
         extensions.amplify.codeGenTarget = 'swift';
         extensions.amplify.docsFilePath = 'graphql';
         extensions.amplify.generatedFileName = 'API.swift';
+        excludes.push('API.swift');
         break;
       default:
         schemaPath = `amplify/backend/api/${projectName}/build/schema.graphql`;

packages/amplify-codegen/src/commands/add.js

@@ -133,7 +133,7 @@ async function add(context, apiId = null, region = 'us-east-1') {
   const newProject = {
     projectName: withoutInit ? 'Codegen Project' : apiDetails.name,
     includes: answer.includePattern,
-    excludes: [...answer.excludePattern, answer.generatedFileName],
+    excludes: [...answer.excludePattern, answer.generatedFileName]?.filter(item => item),
     // Set schema path to use posix separators. Node can handle windows and posix separators regradless of platform
     // Ensures all paths in .graphlqconfig.yml use posix style
     schema: schema.split(path.win32.sep).join(path.posix.sep),