using templates in nightly-release.yml

Author: aminya

script/vsts/nightly-release.yml

@@ -35,10 +35,7 @@ jobs:
       ReleaseVersion: $[ dependencies.GetReleaseVersion.outputs['Version.ReleaseVersion'] ]
 
     steps:
-      - task: NodeTool@0
-        inputs:
-          versionSpec: 12.13.1
-        displayName: Install Node.js 12.13.1
+      - template: platforms/templates/preparation.yml
 
        #This has to be done separately because VSTS inexplicably
        #exits the script block after `npm install` completes.
@@ -74,23 +71,15 @@ jobs:
       vmImage: macos-10.14
 
     steps:
-      - task: NodeTool@0
-        inputs:
-          versionSpec: 12.13.1
-        displayName: Install Node.js 12.13.1
+      - template: platforms/templates/preparation.yml
 
-      - script: npm install --global [email protected]
-        displayName: Update npm
+      - template: platforms/templates/bootstrap.yml
 
-      - script: | 
-          script/bootstrap
-        displayName: Bootstrap
-      
-      - script: | 
+      - script: |
           cd script/lib
           npm install
         displayName: npm install
-      - script: | 
+      - script: |
           cd script/lib/update-dependency
           node index.js
         displayName: Bump depedencies