From aa2ee2d32655ba940d02a5cefec1c7af7c32de57 Mon Sep 17 00:00:00 2001
From: Colum Ferry <cferry09@gmail.com>
Date: Fri, 18 Nov 2022 12:20:37 +0000
Subject: [PATCH] fix(angular): should support filereplacements for apps that
 already have them (#13247)

(cherry picked from commit b4fb074a09058f82edb3002c3b2b621c245e4f5e)
---
 .../__snapshots__/setup-ssr.spec.ts.snap      | 28 +++++++++++++++
 .../setup-ssr/lib/update-project-config.ts    |  6 ++++
 .../generators/setup-ssr/setup-ssr.spec.ts    | 34 ++++++++++++++++++-
 3 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/packages/angular/src/generators/setup-ssr/__snapshots__/setup-ssr.spec.ts.snap b/packages/angular/src/generators/setup-ssr/__snapshots__/setup-ssr.spec.ts.snap
index 10c0e58642afb..24bae49ea24e9 100644
--- a/packages/angular/src/generators/setup-ssr/__snapshots__/setup-ssr.spec.ts.snap
+++ b/packages/angular/src/generators/setup-ssr/__snapshots__/setup-ssr.spec.ts.snap
@@ -84,3 +84,31 @@ if (moduleFilename === __filename || moduleFilename.includes('iisnode')) {
 
 export * from './src/main.server';"
 `;
+
+exports[`setupSSR should use fileReplacements if they already exist 1`] = `
+Object {
+  "configurations": Object {
+    "development": Object {
+      "extractLicenses": false,
+      "optimization": false,
+      "sourceMap": true,
+    },
+    "production": Object {
+      "fileReplacements": Array [
+        Object {
+          "replace": "apps/app1/src/environments/environment.ts",
+          "with": "apps/app1/src/environments/environment.prod.ts",
+        },
+      ],
+      "outputHashing": "media",
+    },
+  },
+  "defaultConfiguration": "production",
+  "executor": "@angular-devkit/build-angular:server",
+  "options": Object {
+    "main": "apps/app1/server.ts",
+    "outputPath": "dist/apps/app1/server",
+    "tsConfig": "apps/app1/tsconfig.server.json",
+  },
+}
+`;
diff --git a/packages/angular/src/generators/setup-ssr/lib/update-project-config.ts b/packages/angular/src/generators/setup-ssr/lib/update-project-config.ts
index c5e87a82bbe14..1090ad61d35bc 100644
--- a/packages/angular/src/generators/setup-ssr/lib/update-project-config.ts
+++ b/packages/angular/src/generators/setup-ssr/lib/update-project-config.ts
@@ -11,6 +11,9 @@ export function updateProjectConfig(tree: Tree, schema: Schema) {
 
   projectConfig.targets.build.options.outputPath = `dist/apps/${schema.project}/browser`;
 
+  const buildTargetFileReplacements =
+    projectConfig.targets.build.configurations?.production?.fileReplacements;
+
   projectConfig.targets.server = {
     executor: '@angular-devkit/build-angular:server',
     options: {
@@ -21,6 +24,9 @@ export function updateProjectConfig(tree: Tree, schema: Schema) {
     configurations: {
       production: {
         outputHashing: 'media',
+        ...(buildTargetFileReplacements
+          ? { fileReplacements: buildTargetFileReplacements }
+          : {}),
       },
       development: {
         optimization: false,
diff --git a/packages/angular/src/generators/setup-ssr/setup-ssr.spec.ts b/packages/angular/src/generators/setup-ssr/setup-ssr.spec.ts
index 607407c0e039b..0b24638d498a6 100644
--- a/packages/angular/src/generators/setup-ssr/setup-ssr.spec.ts
+++ b/packages/angular/src/generators/setup-ssr/setup-ssr.spec.ts
@@ -1,4 +1,8 @@
-import { readJson, readProjectConfiguration } from '@nrwl/devkit';
+import {
+  readJson,
+  readProjectConfiguration,
+  updateProjectConfiguration,
+} from '@nrwl/devkit';
 import { createTreeWithEmptyWorkspace } from '@nrwl/devkit/testing';
 import { PackageJson } from 'nx/src/utils/package-json';
 import { angularVersion, ngUniversalVersion } from '../../utils/versions';
@@ -126,4 +130,32 @@ describe('setupSSR', () => {
       expect(packageJson.devDependencies[dep]).toEqual(version);
     }
   });
+
+  it('should use fileReplacements if they already exist', async () => {
+    // ARRANGE
+    const tree = createTreeWithEmptyWorkspace();
+
+    await applicationGenerator(tree, {
+      name: 'app1',
+    });
+
+    tree.write('apps/app1/src/environments/environment.ts', '');
+    tree.write('apps/app1/src/environments/environment.prod.ts', '');
+    const project = readProjectConfiguration(tree, 'app1');
+    project.targets.build.configurations.production.fileReplacements = [
+      {
+        replace: 'apps/app1/src/environments/environment.ts',
+        with: 'apps/app1/src/environments/environment.prod.ts',
+      },
+    ];
+    updateProjectConfiguration(tree, 'app1', project);
+
+    // ACT
+    await setupSsr(tree, { project: 'app1' });
+
+    // ASSERT
+    expect(
+      readProjectConfiguration(tree, 'app1').targets.server
+    ).toMatchSnapshot();
+  });
 });