Start a full crawl in SharePoint using PowerShell

I needed a PowerShell script that performs a full crawl with the ability to target a specific content source.

This was the neat result

$snapin = Get-PSSnapin | Where-Object { $_.Name -eq "Microsoft.SharePoint.Powershell" }
if ($snapin -eq $null) {
    Write-Host "[INIT] Loading SharePoint Powershell Snapin"
    Add-PSSnapin "Microsoft.SharePoint.Powershell"
}
 
$searchApp = 
    Get-SPEnterpriseSearchCrawlContentSource -SearchApplication "Search Service Application" | 
    Where-Object { $_.Name -eq "Local SharePoint sites" }
 
if($searchApp.CrawlState -eq "Idle") {
    Write-Host "CrawlState was Idle, crawling Full" -ForegroundColor Green
    $searchApp.StartFullCrawl()
 
    Do {
        Write-Host "`r#" -ForegroundColor Yellow -NoNewline
        Start-Sleep 5
    } while ($searchApp.CrawlState -ne "Idle")
 
    Write-Host "`nFinsihed crawling" -ForegroundColor Green
 
} else{
    Write-Host "Didn't start crawl, CrawlState was"$searchApp.CrawlState -ForegroundColor Yellow
}

This will print a status while updating (the yellow hash signs)

All the params are in the script, enjoy