fix(@angular/cli): error when updating Angular packages across multi-major migrations

packages/angular/cli/commands/update-impl.ts

@@ -607,36 +607,40 @@ export class UpdateCommand extends Command<UpdateCommandSchema> {
         return 1;
       }
 
-      if (node.package?.name === '@angular/cli') {
-        // Migrations for non LTS versions of Angular CLI are no longer included in @schematics/angular v12.
+      if (manifest.version === node.package?.version) {
+        this.logger.info(`Package '${packageName}' is already up to date.`);
+        continue;
+      }
+
+      if (node.package && /^@(?:angular|nguniversal)\//.test(node.package.name)) {
+        const { name, version } = node.package;
         const toBeInstalledMajorVersion = +manifest.version.split('.')[0];
-        const currentMajorVersion = +node.package.version.split('.')[0];
-        if (currentMajorVersion < 10 && toBeInstalledMajorVersion >= 12) {
-          const updateVersions: Record<number, number> = {
-            1: 6,
-            6: 7,
-            7: 8,
-            8: 9,
-            9: 10,
-          };
-
-          const updateTo = updateVersions[currentMajorVersion];
-          this.logger.error(
-            'Updating multiple major versions at once is not recommended. ' +
-              `Run 'ng update @angular/cli@${updateTo}' in your workspace directory ` +
-              `to update to latest '${updateTo}.x' version of '@angular/cli'.\n\n` +
-              'For more information about the update process, see https://update.angular.io/.',
-          );
+        const currentMajorVersion = +version.split('.')[0];
+
+        if (toBeInstalledMajorVersion - currentMajorVersion > 1) {
+          // Only allow updating a single version at a time.
+          if (currentMajorVersion < 6) {
+            // Before version 6, the major versions were not always sequential.
+            // Example @angular/core skipped version 3, @angular/cli skipped versions 2-5.
+            this.logger.error(
+              `Updating multiple major versions of '${name}' at once is not supported. Please migrate each major version individually.\n` +
+                `For more information about the update process, see https://update.angular.io/.`,
+            );
+          } else {
+            const nextMajorVersionFromCurrent = currentMajorVersion + 1;
+
+            this.logger.error(
+              `Updating multiple major versions of '${name}' at once is not supported. Please migrate each major version individually.\n` +
+                `Run 'ng update ${name}@${nextMajorVersionFromCurrent}' in your workspace directory ` +
+                `to update to latest '${nextMajorVersionFromCurrent}.x' version of '${name}'.\n\n` +
+                `For more information about the update process, see https://update.angular.io/?v=${currentMajorVersion}.0-${nextMajorVersionFromCurrent}.0`,
+            );
+          }
 
           return 1;
         }
       }
 
-      if (manifest.version === node.package?.version) {
-        this.logger.info(`Package '${packageName}' is already up to date.`);
-        continue;
-      }
-
       packagesToUpdate.push(requestIdentifier.toString());
     }
 

packages/schematics/angular/migrations/migration-collection.json

@@ -1,125 +1,5 @@
 {
   "schematics": {
-    "lazy-loading-syntax": {
-      "version": "9.0.0-next.6",
-      "factory": "./update-12/update-lazy-module-paths",
-      "description": "Lazy loading syntax migration. Update lazy loading syntax to use dynamic imports."
-    },
-    "tslint-version-6": {
-      "version": "10.0.0-beta.0",
-      "factory": "./update-10/update-tslint",
-      "description": "Update tslint to version 6 and adjust rules to maintain existing behavior."
-    },
-    "rename-browserslist-config": {
-      "version": "10.0.0-beta.0",
-      "factory": "./update-10/rename-browserslist-config",
-      "description": "Update Browserslist configuration file name to '.browserslistrc' from deprecated 'browserslist'."
-    },
-    "remove-es5-browser-support-option": {
-      "version": "10.0.0-beta.2",
-      "factory": "./update-10/remove-es5-browser-support",
-      "description": "Remove deprecated 'es5BrowserSupport' browser builder option. The inclusion for ES5 polyfills will be determined from the browsers listed in the browserslist configuration."
-    },
-    "schematic-options-10": {
-      "version": "10.0.0-beta.2",
-      "factory": "./update-10/schematic-options",
-      "description": "Replace deprecated and removed 'styleext' and 'spec' Angular schematic options with 'style' and 'skipTests', respectively."
-    },
-    "update-angular-config": {
-      "version": "10.0.0-beta.6",
-      "factory": "./update-10/update-angular-config",
-      "description": "Remove deprecated options from 'angular.json' that are no longer present in v10."
-    },
-    "tslint-add-deprecation-rule": {
-      "version": "10.0.0-beta.7",
-      "factory": "./update-10/add-deprecation-rule-tslint",
-      "description": "Add the tslint deprecation rule to tslint JSON configuration files."
-    },
-    "update-libraries-tslib": {
-      "version": "10.0.0-beta.7",
-      "factory": "./update-10/update-libraries-tslib",
-      "description": "Update library projects to use tslib version 2 as a direct dependency. Read more about this here: https://v10.angular.io/guide/migration-update-libraries-tslib"
-    },
-    "update-workspace-dependencies": {
-      "version": "10.0.0-rc.2",
-      "factory": "./update-10/update-dependencies",
-      "description": "Update workspace dependencies to match a new v10 project."
-    },
-    "update-module-and-target-compiler-options": {
-      "version": "10.0.1",
-      "factory": "./update-10/update-module-and-target-compiler-options",
-      "description": "Update 'module' and 'target' TypeScript compiler options. Read more about this here: https://v10.angular.io/guide/migration-update-module-and-target-compiler-options"
-    },
-    "remove-solution-style-tsconfig": {
-      "version": "10.1.0-next.5",
-      "factory": "./update-10/remove-solution-style-tsconfig",
-      "description": "Removing \"Solution Style\" TypeScript configuration file support."
-    },
-    "replace-ng-packagr-builder": {
-      "version": "11.0.0-next.0",
-      "factory": "./update-11/replace-ng-packagr-builder",
-      "description": "Replace deprecated library builder '@angular-devkit/build-ng-packagr'."
-    },
-    "add-declaration-map-compiler-option": {
-      "version": "11.0.0-next.2",
-      "factory": "./update-11/add-declaration-map-compiler-option",
-      "description": "Add 'declarationMap' compiler options for non production library builds."
-    },
-    "update-angular-config-v11": {
-      "version": "11.0.0-next.8",
-      "factory": "./update-11/update-angular-config",
-      "description": "Remove deprecated options from 'angular.json' that are no longer present in v11."
-    },
-    "update-workspace-dependencies-v11": {
-      "version": "11.0.0",
-      "factory": "./update-11/update-dependencies",
-      "description": "Update workspace dependencies to match a new v11 project."
-    },
-    "update-angular-config-v12": {
-      "version": "12.0.0-next.0",
-      "factory": "./update-12/update-angular-config",
-      "description": "Remove deprecated options from 'angular.json' that are no longer present in v12."
-    },
-    "update-zonejs": {
-      "version": "12.0.0-next.1",
-      "factory": "./update-12/update-zonejs",
-      "description": "Update 'zone.js' to version 0.11.x. Read more about this here: https://github.com/angular/angular/blob/master/packages/zone.js/CHANGELOG.md#breaking-changes-since-zonejs-v0111"
-    },
-    "remove-emit-decorator-metadata": {
-      "version": "12.0.0-next.2",
-      "factory": "./update-12/remove-emit-decorator-metadata",
-      "description": "Remove 'emitDecoratorMetadata' TypeScript compiler option. Decorator metadata is no longer needed by Angular. Read more about this here: https://www.typescriptlang.org/docs/handbook/decorators.html#metadata"
-    },
-    "lazy-loading-string-syntax": {
-      "version": "12.0.0-next.4",
-      "factory": "./update-12/update-lazy-module-paths",
-      "description": "Lazy loading syntax migration. Update lazy loading string syntax to use dynamic imports."
-    },
-    "remove-deprecated-i18n-options": {
-      "version": "12.0.0-next.7",
-      "factory": "./update-12/update-i18n",
-      "description": "Remove deprecated ViewEngine-based i18n build and extract options. Options present in the configuration will be converted to use non-deprecated options."
-    },
-    "update-web-workers-webpack-5": {
-      "version": "12.0.0-next.7",
-      "factory": "./update-12/update-web-workers",
-      "description": "Updates Web Worker consumer usage to use the new syntax supported directly by Webpack 5."
-    },
-    "schematic-options-12": {
-      "version": "12.0.1",
-      "factory": "./update-12/schematic-options",
-      "description": "Remove invalid 'skipTests' option in '@schematics/angular:module' Angular schematic options."
-    },
-    "replace-deprecated-prod-flag": {
-      "version": "12.1.0",
-      "factory": "./update-12/replace-prod-flag",
-      "description": "Replace the deprecated '--prod' in package.json scripts."
-    },
-    "production-by-default": {
-      "version": "9999.0.0",
-      "factory": "./update-12/production-default-config",
-      "description": "Optional migration to update Angular CLI workspace configurations to 'production' mode by default."
-    },
     "schematic-options-13": {
       "version": "13.0.0",
       "factory": "./update-13/schematic-options",