Add script for testing/building against older versions of Angular

Author: CodeAndWeb

package-a16.json

@@ -31,7 +31,6 @@
     "@angular/cli": "^16",
     "@angular/compiler-cli": "^16",
     "@types/jasmine": "~5.1.0",
-    "angular-eslint": "^18.3.1",
     "eslint": "^9.9.1",
     "jasmine-core": "~5.2.0",
     "karma": "~6.4.0",

package-a17.json

@@ -30,7 +30,6 @@
     "@angular/cli": "^17",
     "@angular/compiler-cli": "^17",
     "@types/jasmine": "~5.1.0",
-    "angular-eslint": "^18.3.1",
     "eslint": "^9.9.1",
     "jasmine-core": "~5.2.0",
     "karma": "~6.4.0",

package-a18.json

@@ -24,14 +24,14 @@
     "@angular/router": "^18",
     "rxjs": "~7.8.0",
     "tslib": "^2.3.0",
-    "zone.js": "~0.13.0"
+    "zone.js": "~0.14.0"
   },
   "devDependencies": {
     "@angular-devkit/build-angular": "^18",
     "@angular/cli": "^18",
     "@angular/compiler-cli": "^18",
     "@types/jasmine": "~5.1.0",
-    "angular-eslint": "^18.3.1",
+    "angular-eslint": "^18",
     "eslint": "^9.9.1",
     "jasmine-core": "~5.2.0",
     "karma": "~6.4.0",
@@ -40,8 +40,8 @@
     "karma-jasmine": "~5.1.0",
     "karma-jasmine-html-reporter": "~2.1.0",
     "karma-mocha-reporter": "^2.2.5",
-    "ng-packagr": "^16",
-    "typescript": "5.1.6",
+    "ng-packagr": "^18",
+    "typescript": "~5.5.0",
     "typescript-eslint": "8.2.0"
   },
   "packageManager": "pnpm@9.10.0+sha512.73a29afa36a0d092ece5271de5177ecbf8318d454ecd701343131b8ebc0c1a91c487da46ab77c8e596d6acf1461e3594ced4becedf8921b074fbd8653ed7051c"

test-and-build-for-all.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -e
+
+for package in package-a16 package-a17 package-a18 package-latest; do
+  echo "Processing $package..."
+  cp "$package.json" package.json
+  rm package-lock.json || true
+  rm -rf node_modules || true
+  npm install
+  npm run build-all
+  npm run test-ci
+done