functions/Stop-DbaAgentJob.ps1

function Stop-DbaAgentJob {
    <#
    .SYNOPSIS
        Stops a running SQL Server Agent Job.
 
    .DESCRIPTION
        This command stops a job then returns connected SMO object for SQL Agent Job information for each instance(s) of SQL Server.
 
    .PARAMETER SqlInstance
        The target SQL Server instance or instances.
 
    .PARAMETER SqlCredential
        Login to the target instance using alternative credentials. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential)
 
    .PARAMETER Job
        The job(s) to process - this list is auto-populated from the server. If unspecified, all jobs will be processed.
 
    .PARAMETER ExcludeJob
        The job(s) to exclude - this list is auto-populated from the server.
 
    .PARAMETER Wait
        Wait for output until the job has completely stopped
 
    .PARAMETER InputObject
        Internal parameter that enables piping
 
    .PARAMETER WhatIf
        If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run.
 
    .PARAMETER Confirm
        If this switch is enabled, you will be prompted for confirmation before executing any operations that change state.
 
    .PARAMETER EnableException
        By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.
        This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting.
        Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch.
 
    .NOTES
        Tags: Job, Agent
        Author: Chrissy LeMaire (@cl), netnerds.net
 
        Website: https://dbatools.io
        Copyright: (c) 2018 by dbatools, licensed under MIT
        License: MIT https://opensource.org/licenses/MIT
 
    .LINK
        https://dbatools.io/Stop-DbaAgentJob
 
    .EXAMPLE
        PS C:\> Stop-DbaAgentJob -SqlInstance localhost
 
        Stops all running SQL Agent Jobs on the local SQL Server instance
 
    .EXAMPLE
        PS C:\> Get-DbaAgentJob -SqlInstance sql2016 -Job cdc.DBWithCDC_capture | Stop-DbaAgentJob
 
        Stops the cdc.DBWithCDC_capture SQL Agent Job on sql2016
 
    .EXAMPLE
        PS C:\> Stop-DbaAgentJob -SqlInstance sql2016 -Job cdc.DBWithCDC_capture
 
        Stops the cdc.DBWithCDC_capture SQL Agent Job on sql2016
 
    #>

    [CmdletBinding(SupportsShouldProcess, DefaultParameterSetName = "Default")]
    param (
        [parameter(Mandatory, ParameterSetName = "Instance")]
        [Alias("ServerInstance", "SqlServer")]
        [DbaInstanceParameter[]]$SqlInstance,
        [PSCredential]$SqlCredential,
        [string[]]$Job,
        [string[]]$ExcludeJob,
        [parameter(Mandatory, ValueFromPipeline, ParameterSetName = "Object")]
        [Microsoft.SqlServer.Management.Smo.Agent.Job[]]$InputObject,
        [switch]$Wait,
        [Alias('Silent')]
        [switch]$EnableException
    )

    process {
        foreach ($instance in $SqlInstance) {
            try {
                $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $SqlCredential
            } catch {
                Stop-Function -Message "Error occurred while establishing connection to $instance" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue
            }

            $InputObject += $server.JobServer.Jobs

            if ($Job) {
                $InputObject = $InputObject | Where-Object Name -In $Job
            }
            if ($ExcludeJob) {
                $InputObject = $InputObject | Where-Object Name -NotIn $ExcludeJob
            }
        }

        foreach ($currentjob in $InputObject) {

            $server = $currentjob.Parent.Parent
            $status = $currentjob.CurrentRunStatus

            if ($status -eq 'Idle') {
                Stop-Function -Message "$currentjob on $server is idle ($status)" -Target $currentjob -Continue
            }

            If ($Pscmdlet.ShouldProcess($server, "Stopping job $currentjob")) {
                $null = $currentjob.Stop()
                Start-Sleep -Milliseconds 300
                $currentjob.Refresh()

                $waits = 0
                while ($currentjob.CurrentRunStatus -ne 'Idle' -and $waits++ -lt 10) {
                    Start-Sleep -Milliseconds 100
                    $currentjob.Refresh()
                }

                if ($wait) {
                    while ($currentjob.CurrentRunStatus -ne 'Idle') {
                        Write-Message -Level Verbose -Message "$currentjob is $($currentjob.CurrentRunStatus)"
                        Start-Sleep -Seconds 3
                        $currentjob.Refresh()
                    }
                    $currentjob
                } else {
                    $currentjob
                }
            }
        }
    }
}