feat(exporters): fixed new line at end of comment

Author: igdmdimitrov

projects/igniteui-angular/migrations/common/UpdateChanges.ts

@@ -98,18 +98,6 @@ export class UpdateChanges {
         return this._tsFiles;
     }
 
-    private _ModuletTsFiles: string[] = [];
-    public get moduleTsFiles(): string[] {
-        if (!this._ModuletTsFiles.length) {
-            this.sourceDirsVisitor((fulPath, entry) => {
-                if (fulPath.endsWith('.module.ts')) {
-                    this._ModuletTsFiles.push(entry.path);
-                }
-            });
-        }
-        return this._ModuletTsFiles;
-    }
-
     private _sassFiles: string[] = [];
     /** Sass (both .scss and .sass) files in the project being updated. */
     public get sassFiles(): string[] {

projects/igniteui-angular/migrations/update-13_0_0/index.spec.ts

@@ -202,8 +202,8 @@ describe(`Update to ${version}`, () => {
     });
 
     it('should insert a comment when exporter services are present in module.ts files', async () => {
-        appTree.create('/testSrc/appPrefix/component/app.module.ts', `
-import { NgModule } from "@angular/core";
+        appTree.create('/testSrc/appPrefix/component/app.module.ts',
+`import { NgModule } from "@angular/core";
 import { FormsModule } from "@angular/forms";
 import { BrowserModule } from "@angular/platform-browser";
 import { BrowserAnimationsModule } from "@angular/platform-browser/animations";

projects/igniteui-angular/migrations/update-13_0_0/index.ts

@@ -17,7 +17,6 @@ export default (): Rule => (host: Tree, context: SchematicContext) => {
     const TAGS = ['igx-grid', 'igx-tree-grid', 'igx-hierarchical-grid'];
     const tsFiles = update.tsFiles;
     const SERVICES = ['IgxCsvExporterService', 'IgxExcelExporterService'];
-    const moduleTsFiles = update.moduleTsFiles;
 
     for (const path of update.templateFiles) {
         findElementNodes(parseFile(host, path), TAGS)
@@ -64,6 +63,7 @@ export default (): Rule => (host: Tree, context: SchematicContext) => {
         });
     }
 
+    const moduleTsFiles = tsFiles.filter(x => x.endsWith('.module.ts'));
     for (const path of moduleTsFiles) {
         let content = host.read(path)?.toString();
         const servicesInFile = [];
@@ -74,7 +74,13 @@ export default (): Rule => (host: Tree, context: SchematicContext) => {
         });
 
         if (servicesInFile.length > 0) {
-            const comment = '// ' + servicesInFile.join(' and ') + ' no longer need to be manually provided and can be safely removed.';
+            let newLine = '\n';
+            if (content.indexOf('\r\n') > -1) {
+                newLine = '\r\n';
+            }
+
+            const comment =
+                '// ' + servicesInFile.join(' and ') + ' no longer need to be manually provided and can be safely removed.' + newLine;
             content = comment + content;
             host.overwrite(path, content);
         }