Merge pull request #10444 from IgniteUI/dmdimitrov/exporter-services-migration

feat(exporters): added migration comments and test

Author: DiyanDimitrov

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

@@ -200,4 +200,73 @@ describe(`Update to ${version}`, () => {
 </div>
 `.replace(lineBreaksAndSpaceRegex, ''));
     });
+
+    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";
+import { FormsModule } from "@angular/forms";
+import { BrowserModule } from "@angular/platform-browser";
+import { BrowserAnimationsModule } from "@angular/platform-browser/animations";
+import { AppComponent } from "./app.component";
+import { IgxCsvExporterService, IgxExcelExporterService } from "igniteui-angular";
+import { ExcelExportComponent } from "./services/export-excel/excel-export.component";
+
+@NgModule({
+bootstrap: [AppComponent],
+declarations: [
+    AppComponent,
+    ExcelExportComponent
+],
+imports: [
+    BrowserModule,
+    BrowserAnimationsModule,
+    FormsModule
+],
+providers: [
+    IgxCsvExporterService,
+    IgxExcelExporterService
+],
+entryComponents: [],
+schemas: []
+})
+export class AppModule {}
+`);
+
+        const tree = await schematicRunner
+            .runSchematicAsync(migrationName, {}, appTree)
+            .toPromise();
+
+        expect(
+            tree.readContent('/testSrc/appPrefix/component/app.module.ts')
+        ).toEqual(
+`// IgxCsvExporterService and IgxExcelExporterService no longer need to be manually provided and can be safely removed.
+import { NgModule } from "@angular/core";
+import { FormsModule } from "@angular/forms";
+import { BrowserModule } from "@angular/platform-browser";
+import { BrowserAnimationsModule } from "@angular/platform-browser/animations";
+import { AppComponent } from "./app.component";
+import { IgxCsvExporterService, IgxExcelExporterService } from "igniteui-angular";
+import { ExcelExportComponent } from "./services/export-excel/excel-export.component";
+
+@NgModule({
+bootstrap: [AppComponent],
+declarations: [
+    AppComponent,
+    ExcelExportComponent
+],
+imports: [
+    BrowserModule,
+    BrowserAnimationsModule,
+    FormsModule
+],
+providers: [
+    IgxCsvExporterService,
+    IgxExcelExporterService
+],
+entryComponents: [],
+schemas: []
+})
+export class AppModule {}
+`);
+    });
 });

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

@@ -16,6 +16,7 @@ export default (): Rule => (host: Tree, context: SchematicContext) => {
     const GRIDS = ['IgxGridComponent', 'IgxTreeGridComponent', 'IgxHierarchicalGridComponent'];
     const TAGS = ['igx-grid', 'igx-tree-grid', 'igx-hierarchical-grid'];
     const tsFiles = update.tsFiles;
+    const SERVICES = ['IgxCsvExporterService', 'IgxExcelExporterService'];
 
     for (const path of update.templateFiles) {
         findElementNodes(parseFile(host, path), TAGS)
@@ -61,5 +62,29 @@ 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 = [];
+        SERVICES.forEach(service => {
+            if (content.indexOf(service) > -1) {
+                servicesInFile.push(service);
+            }
+        });
+
+        if (servicesInFile.length > 0) {
+            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);
+        }
+    }
+
     update.applyChanges();
 };