Forcing vue installation to include @3 or @2 version constraint on yarn add command

Author: weaverryan

lib/features.js

@@ -92,8 +92,8 @@ const features = {
         // vue is needed so the end-user can do things
         // vue-template-compiler is a peer dep of vue-loader
         packages: [
-            { name: 'vue' },
-            { name: 'vue-loader', enforce_version: true },
+            { name: 'vue', version: '^2' },
+            { name: 'vue-loader', version: '^15' },
             { name: 'vue-template-compiler' }
         ],
         description: 'load Vue files'
@@ -103,7 +103,7 @@ const features = {
         // vue is needed so the end-user can do things
         // @vue/compiler-sfc is an optional peer dep of vue-loader
         packages: [
-            { name: 'vue' },
+            { name: 'vue', enforce_version: true },
             { name: 'vue-loader', enforce_version: true },
             { name: '@vue/compiler-sfc' }
         ],

test/package-helper.js

@@ -165,7 +165,8 @@ describe('package-helper', () => {
         it('Lookup a version constraint', () => {
             const inputPackages = [
                 { name: 'sass-loader', enforce_version: 7 },
-                { name: 'node-sass' }
+                { name: 'node-sass' },
+                { name: 'vue', version: '^2'}
             ];
 
             const packageInfo = JSON.parse(
@@ -174,7 +175,8 @@ describe('package-helper', () => {
 
             const expectedPackages = [
                 { name: 'sass-loader', version: packageInfo.devDependencies['sass-loader'] },
-                { name: 'node-sass' }
+                { name: 'node-sass' },
+                { name: 'vue', version: '^2' }
             ];
 
             const actualPackages = packageHelper.addPackagesVersionConstraint(inputPackages);