Powershell to Deploy all WSP from Folder

##############################################
Set Variables#####################################################
$InstallDIR = "F:\Deploy"

##########################################
CODE, No Changes Necessary############################################
Write - Host "Working, Please wait...."
Add - PSSnapin microsoft.sharepoint.powershell - ErrorAction SilentlyContinue

$Dir = get - childitem $InstallDIR - Recurse
$WSPList = $Dir | where {
    $_.Name - like "*.wsp*"
}
Foreach($wsp in $WSPList) {
    $WSPFullFileName = $wsp.FullName
    $WSPFileName = $wsp.Name
    clear
    Write - Host - ForegroundColor White - BackgroundColor Blue "Working on $WSPFileName"

    try {
        Write - Host - ForegroundColor Green "Checking Status of Solution"
        $output = Get - SPSolution - Identity $WSPFileName - ErrorAction Stop
    }
    Catch {
        $DoesSolutionExists = $_
    }
    If(($DoesSolutionExists - like "*Cannot find an SPSolution*") - and($output.Name - notlike "*$WSPFileName*")) {
        Try {
            Write - Host - ForegroundColor Green "Adding solution to farm"
            Add - SPSolution "$WSPFullFileName" - Confirm: $false - ErrorAction Stop | Out - Null

            Write - Host - ForegroundColor Green "Checking Status of Solution"
            $output = Get - SPSolution - Identity $WSPFileName - ErrorAction Stop
            $gobal = $null
            if ($output.Deployed - eq $false) {
                try {
                    Write - Host - ForegroundColor Green "Deploy solution to all Web Apps, will skip if this solution is globally deployed"
                    Install - SPSolution - Identity "$WSPFileName" - GACDeployment - AllWebApplications - Force - Confirm: $false - ErrorAction Stop | Out - Null
                }
                Catch {
                    $gobal = $_
                }
                If($gobal - like "*This solution contains*") {
                    Write - Host - ForegroundColor Green "Solution requires global deployment, Deploying now"
                    Install - SPSolution - Identity "$WSPFileName" - GACDeployment - Force - Confirm: $false - ErrorAction Stop | Out - Null
                }
            }

            Sleep 1
            $dpjobs = Get - SPTimerJob | Where {
                $_.Name - like "*$WSPFileName*"
            }
            If($dpjobs - eq $null) {
                Write - Host - ForegroundColor Green "No solution deployment jobs found"
            }
            Else {
                If($dpjobs - is[Array]) {
                    Foreach($job in $dpjobs) {
                        $jobName = $job.Name
                        While((Get - SPTimerJob $jobName - Debug: $false) - ne $null) {
                            Write - Host - ForegroundColor Yellow - NoNewLine "."
                            Start - Sleep - Seconds 5
                        }
                        Write - Host
                    }
                }
                Else {
                    $jobName = $dpjobs.Name
                    While((Get - SPTimerJob $jobName - Debug: $false) - ne $null) {
                        Write - Host - ForegroundColor Yellow - NoNewLine "."
                        Start - Sleep - Seconds 5
                    }
                    Write - Host
                }
            }
        }
        Catch {
            Write - Error $_
            Write - Host - ForegroundColor Red "Skipping $WSPFileName, Due to an error"
            Read - Host
        }
    }
    Else {
        $skip = $null
        $tryagain = $null
        Try {
            if ($output.Deployed - eq $true) {
                Write - Host - ForegroundColor Green "Retracting Solution"
                Uninstall - SPSolution - AllWebApplications - Identity $WSPFileName - Confirm: $false - ErrorAction Stop
            }
        }
        Catch {
            $tryagain = $_
        }
        Try {
            if ($tryagain - ne $null) {
                Uninstall - SPSolution - Identity $WSPFileName - Confirm: $false - ErrorAction Stop
            }
        }
        Catch {
            Write - Host - ForegroundColor Red "Could not Retract Solution"
        }

        Sleep 1
        $dpjobs = Get - SPTimerJob | Where {
            $_.Name - like "*$WSPFileName*"
        }
        If($dpjobs - eq $null) {
            Write - Host - ForegroundColor Green "No solution deployment jobs found"
        }
        Else {
            If($dpjobs - is[Array]) {
                Foreach($job in $dpjobs) {
                    $jobName = $job.Name
                    While((Get - SPTimerJob $jobName - Debug: $false) - ne $null) {
                        Write - Host - ForegroundColor Yellow - NoNewLine "."
                        Start - Sleep - Seconds 5
                    }
                    Write - Host
                }
            }
            Else {
                $jobName = $dpjobs.Name
                While((Get - SPTimerJob $jobName - Debug: $false) - ne $null) {
                    Write - Host - ForegroundColor Yellow - NoNewLine "."
                    Start - Sleep - Seconds 5
                }
                Write - Host
            }
        }

        Try {
            Write - Host - ForegroundColor Green "Removing Solution from farm"
            Remove - SPSolution - Identity $WSPFileName - Confirm: $false - ErrorAction Stop
        }
        Catch {
            $skip = $_
            Write - Host - ForegroundColor Red "Could not Remove Solution"
            Read - Host
        }
        if ($skip - eq $null) {
            Try {
                Write - Host - ForegroundColor Green "Adding solution to farm"
                Add - SPSolution "$WSPFullFileName" - Confirm: $false - ErrorAction Stop | Out - Null
                $gobal = $null
                try {
                    Write - Host - ForegroundColor Green "Deploy solution to all Web Apps, will skip if this solution is globally deployed"
                    Install - SPSolution - Identity "$WSPFileName" - GACDeployment - AllWebApplications - Force - Confirm: $false - ErrorAction Stop | Out - Null
                }
                Catch {
                    $gobal = $_
                }
                If($gobal - like "*This solution contains*") {
                    Write - Host - ForegroundColor Green "Solution requires global deployment, Deploying now"
                    Install - SPSolution - Identity "$WSPFileName" - GACDeployment - Force - Confirm: $false - ErrorAction Stop | Out - Null
                }
            }
            Catch {
                Write - Error $_
                Write - Host - ForegroundColor Red "Skipping $WSPFileName, Due to an error"
                Read - Host
            }

            Sleep 1
            $dpjobs = Get - SPTimerJob | Where {
                $_.Name - like "*$WSPFileName*"
            }
            If($dpjobs - eq $null) {
                Write - Host - ForegroundColor Green "No solution deployment jobs found"
            }
            Else {
                If($dpjobs - is[Array]) {
                    Foreach($job in $dpjobs) {
                        $jobName = $job.Name
                        While((Get - SPTimerJob $jobName - Debug: $false) - ne $null) {
                            Write - Host - ForegroundColor Yellow - NoNewLine "."
                            Start - Sleep - Seconds 5
                        }
                        Write - Host
                    }
                }
                Else {
                    $jobName = $dpjobs.Name
                    While((Get - SPTimerJob $jobName - Debug: $false) - ne $null) {
                        Write - Host - ForegroundColor Yellow - NoNewLine "."
                        Start - Sleep - Seconds 5
                    }
                    Write - Host
                }
            }
        }
        Else {
            Write - Host - ForegroundColor Red "Cannot Install $WSPFileName, Please try manually"
            Read - Host
        }
    }
}