Add option to unpublish package (Azure#12284)

* Add option to unpublish package

Author: praveenkuttappan

eng/pipelines/npm-tasks.yml

@@ -3,7 +3,7 @@ trigger: none
 # This pipeline helps to run NPM admin tasks like remove or add tag to a released package version or deprecate a pacakge version
 # Following variables should be set at queue time to run this pipeline
 # variable name: TaskType
-# valid Options: 'AddTag', 'RemoveTag', 'DeprecatePackage'
+# valid Options: 'AddTag', 'RemoveTag', 'Deprecate', 'Unpublish'
 
 # variable name: PackageName
 # e.g. values: '@azure/storage-blob', '@azure/core-http'
@@ -22,7 +22,8 @@ parameters:
     values:
     - AddTag
     - RemoveTag
-    - DeprecatePackage
+    - Deprecate
+    - Unpublish
 
   - name: PackageName
     displayName: Package Name (e.g. @azure/template)

eng/scripts/npm-admin-tasks.ps1

@@ -37,7 +37,7 @@ try {
       npm dist-tag rm $nameAndVersion $tagName
     }
 
-    "DeprecatePackage" {
+    "Deprecate" {
       if ($reason -eq '') {
         Write-Host "Reason cannot be empty to deprecate package version"
         exit 1
@@ -47,6 +47,12 @@ try {
       npm deprecate $nameAndVersion $reason
     }
 
+     "Unpublish" {
+      Write-Host "Unpublish package $nameAndVersion"
+      Write-Host "npm unpublish $($nameAndVersion)"
+      npm unpublish $nameAndVersion
+    }
+
     default {
       Write-Host "Invalid taskType to run npm admin job."
       exit 1