parts/GetParams.ps1
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<#
.Synopsis Gets $CommandName's parameters .Description Gets the parameters for $CommandName from a collection of parameters #> param( # A collection of parameters. Parameters not used in $CommandName will be removed [Parameter(ValueFromPipeline,Position = 0,Mandatory,ParameterSetName = 'GetParameterValues')] [Alias('Parameters')] [Collections.IDictionary] $Parameter, [Parameter(ValueFromPipeline,Position = 1,Mandatory,ParameterSetName = 'GetParameterValues')] $CommandName ) begin { if (-not ${script:"$CommandName"}) { # If we haven't cached a reference to $CommandName, ${script:"$CommandName"} = # make it so. [Management.Automation.CommandMetaData]$ExecutionContext.SessionState.InvokeCommand.GetCommand($CommandName, 'Function') } } process { if ($PSCmdlet.ParameterSetName -eq 'GetParameterValues') { $newParams = [Ordered]@{ } + $Parameter # Then we copy our parameters foreach ($k in @($newParams.Keys)) { # and walk thru each parameter name. # If a parameter isn't found in $CommandName if (-not ${script:"$CommandName"}.Parameters.ContainsKey($k)) { $newParams.Remove($k) # we remove it. } } return $newParams } } |