function-Test-ChocoPackage.ps1
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<# .SYNOPSIS Tests for exact existence of a Chocolatey Package. .DESCRIPTION Tests for exact existence of a Chocolatey Package and return either true or false .EXAMPLE PS> Test-ChocoPackage -PackageName GoogleChrome $true #> function Test-ChocoPackage { [CmdletBinding()] param ( # Package Name to query [Parameter(Mandatory,ValueFromPipeline)] [String] $PackageName ) begin { try { $chocoExe = (Get-Command "choco.exe" -ErrorAction Stop | Where-Object { $_.CommandType -eq "Application" }).Source Write-Verbose "Detected Chocolatey executable in: $chocoExe" } catch [System.Management.Automation.CommandNotFoundException] { Write-Error -Message "Could not find Chocolatey Executable." } } process { Write-Verbose "Looking up package: $package" $cmd = $chocoExe + " search " + $package + " --exact" Write-Verbose "Native command is: $cmd" $cmdRtn = Invoke-Expression $cmd Write-Verbose "Chocolatey return was: $cmdRtn" if ($cmdRtn[-1] -match "1 packages found.") { return $true } else { Write-Warning "No such package: $PackageName" return $false } } } |