feat(@angular/cli): add support for ng update --next

package-lock.json

@@ -1069,6 +1069,12 @@
       "resolved": "https://registry.npmjs.org/buffer-xor/-/buffer-xor-1.0.3.tgz",
       "integrity": "sha1-JuYe0UIvtw3ULm42cp7VHYVf6Nk="
     },
+    "builtin-modules": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
+      "integrity": "sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=",
+      "dev": true
+    },
     "builtin-status-codes": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz",
@@ -9102,6 +9108,7 @@
       "dev": true,
       "requires": {
         "babel-code-frame": "6.26.0",
+        "builtin-modules": "1.1.1",
         "chalk": "2.2.0",
         "commander": "2.11.0",
         "diff": "3.3.1",

packages/@angular/cli/commands/update.ts

@@ -16,6 +16,12 @@ const UpdateCommand = Command.extend({
       default: false,
       aliases: ['d'],
       description: 'Run through without making any changes.'
+    },
+    {
+      name: 'next',
+      type: Boolean,
+      default: false,
+      description: 'Install the next version, instead of the latest.'
     }
   ],
 

packages/@angular/cli/tasks/update.ts

@@ -4,6 +4,7 @@ import SchematicRunTask from './schematic-run';
 export interface UpdateTaskOptions {
   dryRun: boolean;
   force: boolean;
+  next: boolean;
 }
 
 export const UpdateTask: any = Task.extend({
@@ -17,7 +18,8 @@ export const UpdateTask: any = Task.extend({
 
     const schematicRunOptions = {
       taskOptions: {
-        dryRun: options.dryRun
+        dryRun: options.dryRun,
+        version: options.next ? 'next' : undefined
       },
       workingDir: this.project.root,
       collectionName,