chore: fix v4 migration `TypeError: Cannot read properties of null …

…(reading 'getSourceFiles')` (#6987)

.github/workflows/schematics.yml

@@ -0,0 +1,19 @@
+name: ⚙️ Schematics
+on:
+  pull_request:
+    paths:
+      - 'projects/cdk/schematics/**'
+
+jobs:
+  schematics:
+    if: ${{ !contains(github.head_ref , 'release/') }}
+    runs-on: ubuntu-latest
+    name: Run the latest migration
+    steps:
+      - uses: taiga-family/ci/actions/setup/[email protected]
+      - uses: taiga-family/ci/actions/setup/[email protected]
+      - run: npx nx run cdk:schematics --v=4
+
+concurrency:
+  group: schematics-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true

projects/cdk/project.json

@@ -34,6 +34,18 @@
                 "command": "tsc -p ./projects/cdk/schematics/tsconfig.schematics.json"
             }
         },
+        "schematics": {
+            "executor": "nx:run-commands",
+            "options": {
+                "command": "schematics ./dist/cdk:updateToV{args.v} --allow-private --dry-run true"
+            },
+            "dependsOn": [
+                {
+                    "target": "build",
+                    "params": "ignore"
+                }
+            ]
+        },
         "test": {
             "executor": "@nx/jest:jest",
             "outputs": ["{workspaceRoot}/coverage/cdk"],

projects/cdk/schematics/ng-update/v4/index.ts

@@ -1,15 +1,14 @@
 import type {Rule, SchematicContext, Tree} from '@angular-devkit/schematics';
 import {chain} from '@angular-devkit/schematics';
-import {createProject, saveActiveProject} from 'ng-morph';
+import {saveActiveProject} from 'ng-morph';
 import {performance} from 'perf_hooks';
 
-import {ALL_FILES} from '../../constants';
 import {TAIGA_VERSION} from '../../ng-add/constants/versions';
 import type {TuiSchema} from '../../ng-add/schema';
 import {FINISH_SYMBOL, START_SYMBOL, titleLog} from '../../utils/colored-log';
 import {getExecutionTime} from '../../utils/get-execution-time';
-import {projectRoot} from '../../utils/project-root';
 import {removeModules, replaceIdentifiers, showWarnings} from '../steps';
+import {getFileSystem} from '../utils/get-file-system';
 import {
     migrateDestroyService,
     migrateLegacyMask,
@@ -25,9 +24,7 @@ import {
 
 function main(options: TuiSchema): Rule {
     return (tree: Tree, context: SchematicContext) => {
-        const project = createProject(tree, projectRoot(), ALL_FILES);
-
-        const fileSystem = project.getFileSystem().fs;
+        const fileSystem = getFileSystem(tree);
 
         replaceIdentifiers(options, IDENTIFIERS_TO_REPLACE);
         removeModules(options, MODULES_TO_REMOVE);