build: set up schematics for version 15 (#25028)

Prepares the schematics infrastructure for the next major version.

(cherry picked from commit 6edb42f)

src/cdk/schematics/migration.json

@@ -46,6 +46,11 @@
       "description": "Updates the Angular CDK to v14",
       "factory": "./ng-update/index#updateToV14"
     },
+    "migration-v15": {
+      "version": "15.0.0-0",
+      "description": "Updates the Angular CDK to v15",
+      "factory": "./ng-update/index#updateToV15"
+    },
     "ng-post-update": {
       "description": "Prints out results after ng-update.",
       "factory": "./ng-update/index#postUpdate",

src/cdk/schematics/ng-update/index.ts

@@ -104,6 +104,16 @@ export function updateToV14(): Rule {
   );
 }
 
+/** Entry point for the migration schematics with target of Angular CDK 15.0.0 */
+export function updateToV15(): Rule {
+  return createMigrationSchematicRule(
+    TargetVersion.V15,
+    cdkMigrations,
+    cdkUpgradeData,
+    onMigrationComplete,
+  );
+}
+
 /** Function that will be called when the migration completed. */
 function onMigrationComplete(
   context: SchematicContext,

src/cdk/schematics/update-tool/target-version.ts

@@ -19,6 +19,7 @@ export enum TargetVersion {
   V12 = 'version 12',
   V13 = 'version 13',
   V14 = 'version 14',
+  V15 = 'version 15',
 }
 
 /**

src/material/schematics/migration.json

@@ -46,6 +46,11 @@
       "description": "Updates the Angular Material to v14",
       "factory": "./ng-update/index#updateToV14"
     },
+    "migration-v15": {
+      "version": "15.0.0-0",
+      "description": "Updates the Angular Material to v15",
+      "factory": "./ng-update/index#updateToV15"
+    },
     "ng-post-update": {
       "description": "Prints out results after ng-update.",
       "factory": "./ng-update/index#postUpdate",

src/material/schematics/ng-update/index.ts

@@ -126,6 +126,16 @@ export function updateToV14(): Rule {
   );
 }
 
+/** Entry point for the migration schematics with target of Angular Material v15 */
+export function updateToV15(): Rule {
+  return createMigrationSchematicRule(
+    TargetVersion.V15,
+    materialMigrations,
+    materialUpgradeData,
+    onMigrationComplete,
+  );
+}
+
 /** Function that will be called when the migration completed. */
 function onMigrationComplete(
   context: SchematicContext,