Fix for using parameter sets in PSDeployScripts

PSDeploy/Private/Get-ParameterSetInUse.ps1

@@ -0,0 +1,27 @@
+Function Get-ParameterSetInUse {
+# get parameter set name to be used, based on parameters hash passed  
+    [cmdletbinding()]
+    param(
+        # Supply the script info object, output of Get-Command -Name <DeploymentScript>.ps1
+        [System.Management.Automation.ExternalScriptInfo]$ScriptInfo,
+
+        # hashtable of all the parameters to be passed to the DeploymentScript
+        [hashtable]$ParameterHash
+    )
+
+    $Metadata = [System.Management.Automation.CommandMetadata]::New($ScriptInfo)
+    $CmdletBinding = [System.Management.Automation.ProxyCommand]::GetCmdletBindingAttribute($Metadata)
+    $Parameters = [System.Management.Automation.ProxyCommand]::GetParamBlock($Metadata)
+
+    $FunctionBody = @"
+    $CmdletBinding
+    param(
+        $Parameters
+    )
+    return `$PSCmdlet.ParameterSetName    
+"@
+
+    $DummyFunction = [scriptblock]::Create($FunctionBody)
+
+    & $DummyFunction @ParameterHash
+}

PSDeploy/Public/Invoke-PSDeploy.ps1

@@ -215,7 +215,25 @@
 
                 # First, get the script, parse out parameters, restrict splatting to valid params
                 $DeploymentScript = $DeploymentScripts.$Type
-                $ValidParameters = Get-ParameterName -Command $DeploymentScript
+
+                # Below has to be changed to factor in different paramete sets
+                $ScriptInfo = Get-Command -Name $DeploymentScript
+                $ScriptParameterSetsName = @($ScriptInfo.ParameterSets.Name)
+
+                # get the valid parameters based on the parameters specified within the WithOptions block
+                if (($ScriptParameterSetsName.Count -eq 1) -and
+                ($ScriptParameterSetsName -contains '__AllParameterSets')) 
+                {
+                    # this infers that no parameter sets
+                    $ValidParameters = Get-ParameterName -Command $DeploymentScript
+                }
+                else
+                {
+                    # Parameter sets defined, now figure out which parameter set is used.
+                    $ParameterSetUsed = Get-ParameterSetinUse -ScriptInfo $ScriptInfo -ParameterHash $Deployment.DeploymentOptions
+                    $ValidParameters = Get-ParameterName -command $DeploymentScript -parameterset $ParameterSetUsed
+                }
+
 
                 $FilteredOptions = @{}
                 foreach($key in $Deployment.DeploymentOptions.Keys)