Added stack existence checks for New- and Set-

Author: Xynoclafe

src/Resources/ResourceManager/Implementation/DeploymentStacks/NewAzResourceGroupDeploymentStack.cs

@@ -2,6 +2,7 @@
 {
     using Microsoft.Azure.Commands.ResourceManager.Cmdlets.SdkModels;
     using Microsoft.Azure.Commands.ResourceManager.Common.ArgumentCompleters;
+    using Microsoft.Azure.Management.ResourceManager.Models;
     using Microsoft.WindowsAzure.Commands.Utilities.Common;
     using System;
     using System.Collections;
@@ -104,6 +105,7 @@ public override void ExecuteCmdlet()
                             throw new PSInvalidOperationException(
                                 string.Format(ProjectResources.InvalidFilePath, TemplateFile));
                         }
+                        TemplateUri = TemplateFile;
                         break;
                     case ParameterFileTemplateSpecParameterSetName:
                     case ParameterFileTemplateUriParameterSetName:
@@ -117,17 +119,25 @@ public override void ExecuteCmdlet()
                                 string.Format(ProjectResources.InvalidFilePath, TemplateFile));
                         }
                         parameters = this.GetParameterObject(ParameterFile);
+                        TemplateUri = TemplateFile;
                         break;
                 }
 
+                if (DeploymentStacksSdkClient.GetResourceGroupDeploymentStack(
+                        ResourceGroupName,
+                        Name,
+                        throwIfNotExists: false) != null)
+                    throw new DeploymentStacksErrorException($"The stack '{Name}' in Resource Group '{ResourceGroupName}' you're trying to create already exists. Please Use Set-AzResourceGroupDeploymentStack to make changes to it");
+
                 var deploymentStack = DeploymentStacksSdkClient.ResourceGroupCreateOrUpdateDeploymentStack(
                     Name,
                     ResourceGroupName,
                     TemplateUri,
                     TemplateSpec,
                     ParameterUri,
                     parameters,
-                    Description
+                    Description,
+                    "Detach"
                     );
                 WriteObject(deploymentStack);
 

src/Resources/ResourceManager/Implementation/DeploymentStacks/NewAzSubscriptionDeploymentStack.cs

@@ -2,6 +2,7 @@
 {
     using Microsoft.Azure.Commands.ResourceManager.Cmdlets.SdkModels;
     using Microsoft.Azure.Commands.ResourceManager.Common.ArgumentCompleters;
+    using Microsoft.Azure.Management.ResourceManager.Models;
     using Microsoft.WindowsAzure.Commands.Utilities.Common;
     using System;
     using System.Collections;
@@ -114,6 +115,11 @@ public override void ExecuteCmdlet()
                         break;
                 }
 
+                if (DeploymentStacksSdkClient.GetSubscriptionDeploymentStack(
+                        Name,
+                        throwIfNotExists: false) != null)
+                    throw new DeploymentStacksErrorException($"The stack '{Name}' you're trying to create already exists in the current subscription. Please Use Set-AzResourceGroupDeploymentStack to make changes to it");
+
                 var deploymentStack = DeploymentStacksSdkClient.SubscriptionCreateOrUpdateDeploymentStack(
                     Name,
                     TemplateUri,

src/Resources/ResourceManager/Implementation/DeploymentStacks/SetAzResourceGroupDeploymentStack.cs

@@ -2,6 +2,7 @@
 {
     using Microsoft.Azure.Commands.ResourceManager.Cmdlets.SdkModels;
     using Microsoft.Azure.Commands.ResourceManager.Common.ArgumentCompleters;
+    using Microsoft.Azure.Management.ResourceManager.Models;
     using Microsoft.WindowsAzure.Commands.Utilities.Common;
     using System;
     using System.Collections;
@@ -85,6 +86,10 @@ public class SetAzResourceGroupDeploymentStack : DeploymentStacksCmdletBase
             HelpMessage = "Description for the stack")]
         public string Description { get; set; }
 
+        [Parameter(Mandatory = true, ValueFromPipeline = true,
+            HelpMessage = "Update behavior for the stack. Value can be \"Detach\" or \"Purge\".")]
+        public String UpdateBehavior { get; set; }
+
         #endregion
 
         #region Cmdlet Overrides
@@ -120,15 +125,21 @@ public override void ExecuteCmdlet()
                         break;
                 }
 
+                if (DeploymentStacksSdkClient.GetSubscriptionDeploymentStack(
+                        Name,
+                        throwIfNotExists: false) == null)
+                    throw new DeploymentStacksErrorException($"The stack '{Name}' you're trying to modify does not exist in '{ResourceGroupName}'. Please Use New-AzResourceGroupDeploymentStack to create it");
+
                 var deploymentStack = DeploymentStacksSdkClient.ResourceGroupCreateOrUpdateDeploymentStack(
                     Name,
                     ResourceGroupName,
                     TemplateUri,
                     TemplateSpec,
                     ParameterUri,
                     parameters,
-                    Description
-                    );
+                    Description,
+                    UpdateBehavior
+                    ) ;
                 WriteObject(deploymentStack);
 
             }

src/Resources/ResourceManager/Implementation/DeploymentStacks/SetAzSubscriptionDeploymentStack.cs

@@ -2,6 +2,7 @@
 {
     using Microsoft.Azure.Commands.ResourceManager.Cmdlets.SdkModels;
     using Microsoft.Azure.Commands.ResourceManager.Common.ArgumentCompleters;
+    using Microsoft.Azure.Management.ResourceManager.Models;
     using Microsoft.WindowsAzure.Commands.Utilities.Common;
     using System;
     using System.Collections;
@@ -114,6 +115,12 @@ public override void ExecuteCmdlet()
                         break;
                 }
 
+
+                if (DeploymentStacksSdkClient.GetSubscriptionDeploymentStack(
+                        Name,
+                        throwIfNotExists: false) == null)
+                    throw new DeploymentStacksErrorException($"The stack '{Name}' you're trying to modify does not exist in the current subscription. Please Use New-AzResourceGroupDeploymentStack to create it");
+
                 var deploymentStack = DeploymentStacksSdkClient.SubscriptionCreateOrUpdateDeploymentStack(
                     Name,
                     TemplateUri,