Deploy SharePoint Event Receivers from PowerShell

I thought I would share a script that we use for deploying Event Receivers to SharePoint.

param ([string] $url, [string] $featureName,[string] $solution, [bool] $install, [bool] $uninstall)

if ( -not ($url))
{
 Write-Host "Please enter the Site Url"
 exit
}

function SelectOperation
{
 $message = "Select Operation?";
 $InstallMe = new-Object System.Management.Automation.Host.ChoiceDescription "&Install","Install";
 $UninstallMe = new-Object System.Management.Automation.Host.ChoiceDescription "&Uninstall","Uninstall";
 $choices = [System.Management.Automation.Host.ChoiceDescription[]]($InstallMe,$UninstallMe);
 $answer = $host.ui.PromptForChoice($caption,$message,$choices,0)
 return $answer
}

if (-not($install) -and -not($uninstall))
{
 $answer = SelectOperation

 switch ([int]$answer)
 {
   0 {$install=$true}
   1 {$uninstall=$true}
 }

}

if ($install)
{
 Add-SPSolution -LiteralPath $(join-path $(pwd).Path $solution)
 $solutionId = (Get-SPSolution | ? {$_.name -eq  $solution}).Id
 Install-SPSolution -Identity $solutionId -GACDeployment
 Write-Host "Waiting for the SharePoint to finish..."
 Sleep(120)
 $featureNameId = Get-SPfeatureName | where {$_.displayname -eq  $featureName} 
 Enable-SPfeatureName -Identity $featureNameId -Url $url
}

if ($uninstall)
{
 $featureNameId = (Get-SPfeatureName | where {$_.displayname -eq  $featureName}).Id
 Disable-SPfeatureName $featureNameId -Url $url
 $solutionId = (Get-SPSolution | ? {$_.name -eq  $solution}).Id
 Uninstall-SPSolution -Identity $solutionId
 Write-Host "Waiting for SharePoint to finish..."
 Sleep(120)
 Remove-SPSolution -Identity $solutionId
}
Write-host "All Done."

An example of usage:

.\DeployEV.ps1 -featureName "receiver1" -solution "receiver1.wsp"  -install $true

 Note that the script assumes that the wsp file will be in the same location as the script.