SPFarmSolutionDeployment

cls
Write-Host "Loading SharePoint Commandlets"
Add-PSSnapin Microsoft.SharePoint.PowerShell -erroraction SilentlyContinue
Write-Host -ForegroundColor Green " Commandlets Loaded ..." 
Write-Host

## Global Functions
function Get-ScriptDirectory {
    $Invocation = (Get-Variable MyInvocation -Scope 1).Value
    Split-Path $Invocation.MyCommand.Path
}

## Global Variables
$path = Get-ScriptDirectory

Function BackUpSolution([string]$SolutionName) {
    Write-Host "Backup solution: $SolutionName" -NoNewline
      
    $farm = Get-SPFarm 
    $solution = $farm.Solutions.Item($SolutionName).SolutionFile
    $backupFilename = "backup_" + $SolutionName
    $backupPath = $path + "\" + $backupFilename
    $solution.SaveAs($backupPath)
     
    Write-Host " - " -NoNewLine
    Write-Host "Done"  -ForegroundColor Yellow  
}

Function RetractSolution([string]$SolutionName) {
    Write-Host "Rectracting solution: $SolutionName" -NoNewline
      
        $Solution = Get-SPSolution | ? {($_.Name -eq $SolutionName) -and ($_.Deployed -eq $true)}  
        if ($Solution -ne $null)  
        {  
            if($Solution.ContainsWebApplicationResource)  
            {  
                Uninstall-SPSolution $SolutionName -AllWebApplications -Confirm:$false  
            }  
            else  
            {  
                Uninstall-SPSolution $SolutionName -Confirm:$false  
            }  
        }  
          
        while ($Solution.JobExists)  
        {  
            Start-Sleep 2  
        } 
     
    Write-Host " - " -NoNewLine
    Write-Host "Done"  -ForegroundColor Yellow  
}
 
Function RemoveSolution([string]$SolutionName) {   
    Write-Host "Removing solution: $SolutionName" -NoNewline  
    
        if ($(Get-SPSolution | ? {$_.Name -eq $SolutionName}).Deployed -eq $false)  
        {  
            Remove-SPSolution $SolutionName -Confirm:$false  
        }   
    
    Write-Host " - " -NoNewLine
    Write-Host "Done"  -ForegroundColor Yellow  
}

Function AddSolution([string]$SolutionName) {
    Write-Host "Adding solution: $SolutionName" -NoNewline  
    
        $SolutionPath = $path + "/" + $SolutionName  
        Add-SPSolution $SolutionPath | Out-Null  
    
    Write-Host " - " -NoNewLine
    Write-Host "Done"  -ForegroundColor Yellow   
}
    
Function DeploySolution([string]$SolutionName) {  
    Write-Host "Deploying solution: $SolutionName" -NoNewline  
    
        $Solution = Get-SPSolution | ? {($_.Name -eq $SolutionName) -and ($_.Deployed -eq $false)}  
        if(($Solution -ne $null) -and ($Solution.ContainsWebApplicationResource))  
        {  
            Install-SPSolution $SolutionName -AllWebApplications -GACDeployment -Confirm:$false  
        }  
        else  
        {  
            Install-SPSolution $SolutionName -GACDeployment -Confirm:$false  
        }  
        while ($Solution.Deployed -eq $false)  
        {  
            Start-Sleep 2  
        }  
        
    Write-Host " - " -NoNewLine
    Write-Host "Done"  -ForegroundColor Yellow  
}

$solution = "yourfarmsolution.wsp"

Write-Host "Processing"$solution -ForegroundColor White
Write-Host

BackUpSolution $solution
RetractSolution $solution
RemoveSolution $solution
AddSolution $solution
DeploySolution $solution

Write-Host