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fix(@schematics/angular): preserve the workspace build version during migration #32875

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fix(@schematics/angular): preserve the workspace build version during migration #32875

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4493d78
fix(@schematics/angular): preserve workspace build version
raashish1601 Mar 27, 2026
60392dd
fix(@schematics/angular): keep existing build versions
raashish1601 Mar 27, 2026
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8 changes: 6 additions & 2 deletions packages/schematics/angular/migrations/use-application-builder/migration.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@ import {
DependencyType,
ExistingBehavior,
addDependency,
getDependency,
removeDependency,
} from '../../utility/dependency';
import { JSONFile } from '../../utility/json-file';
Expand Down Expand Up @@ -270,10 +271,13 @@ function updateProjects(tree: Tree, context: SchematicContext) {
}

// Add direct @angular/build dependencies and remove @angular-devkit/build-angular
const buildAngularVersion =
getDependency(tree, '@angular-devkit/build-angular')?.version ??
latestVersions.DevkitBuildAngular;
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@alan-agius4 alan-agius4 Mar 27, 2026

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NIT

Suggested change
latestVersions.DevkitBuildAngular;
latestVersions.AngularBuild;

rules.push(
addDependency('@angular/build', latestVersions.DevkitBuildAngular, {
addDependency('@angular/build', buildAngularVersion, {
type: DependencyType.Dev,
existing: ExistingBehavior.Replace,
existing: ExistingBehavior.Skip,
}),
removeDependency('@angular-devkit/build-angular'),
);
Expand Down
35 changes: 35 additions & 0 deletions packages/schematics/angular/migrations/use-application-builder/migration_spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -450,6 +450,41 @@ describe(`Migration to use the application builder`, () => {
expect(devDependencies['postcss']).toBeUndefined();
});

it('should reuse the installed builder version when migrating to "@angular/build"', async () => {
tree.overwrite(
'/package.json',
JSON.stringify({
devDependencies: {
'@angular-devkit/build-angular': '~18.2.20',
},
}),
);

const newTree = await schematicRunner.runSchematic(schematicName, {}, tree);

const { devDependencies } = JSON.parse(newTree.readContent('/package.json'));
expect(devDependencies['@angular/build']).toBe('~18.2.20');
expect(devDependencies['@angular-devkit/build-angular']).toBeUndefined();
});

it('should preserve an existing "@angular/build" version when migrating', async () => {
tree.overwrite(
'/package.json',
JSON.stringify({
devDependencies: {
'@angular-devkit/build-angular': '~18.2.20',
'@angular/build': '~18.2.10',
},
}),
);

const newTree = await schematicRunner.runSchematic(schematicName, {}, tree);

const { devDependencies } = JSON.parse(newTree.readContent('/package.json'));
expect(devDependencies['@angular/build']).toBe('~18.2.10');
expect(devDependencies['@angular-devkit/build-angular']).toBeUndefined();
});

it('it should not add esModuleInterop and moduleResolution when module is preserve', async () => {
tree.overwrite(
'tsconfig.json',
Expand Down
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