Functions/Assert-Service.ps1
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# Copyright 2012 Aaron Jensen # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. function Assert-Service { <# .SYNOPSIS Checks if a service exists, and writes an error if it doesn't. .DESCRIPTION Also returns `True` if the service exists, `False` if it doesn't. .OUTPUTS System.Boolean. .LINK Test-Service .EXAMPLE Assert-Service -Name 'Drivetrain' Writes an error if the `Drivetrain` service doesn't exist. #> [CmdletBinding()] param( [Parameter(Mandatory=$true)] [string] # The name of the service. $Name ) Set-StrictMode -Version 'Latest' Use-CallerPreference -Cmdlet $PSCmdlet -Session $ExecutionContext.SessionState if( -not (Test-Service $Name) ) { Write-Error ('Service {0} not found.' -f $Name) return $false } return $true } |