Using command line parameters within chocolateyInstall.ps1

chocolateyInstall.ps1

<#
The parsePackageParameters function allows you to call choco install like this:
  choco install MyChocolateyPackage --params '/myParam: ""some parameter with spaces in it""'
#>
function parsePackageParameters($packageParameters) {
  $arguments = @{}

  if ($packageParameters) {
    # The input string is something like this, and we will use a Regular Expression to parse the values
    # /Port:81 /Edition:LicenseKey /AdditionalTools
    $match_pattern = "\/(?<option>([a-zA-Z]+)):(?<value>([`"'])?([a-zA-Z0-9- _\\:\.]+)([`"'])?)|\/(?<option>([a-zA-Z]+))"
    $option_name = 'option'
    $value_name = 'value'

    if ($packageParameters -match $match_pattern) {
      $results = $packageParameters | Select-String $match_pattern -AllMatches
      $results.matches | % {
        $arguments.Add(
          $_.Groups[$option_name].Value.Trim(),
          $_.Groups[$value_name].Value.Trim())
      }
    } else {
      Write-Host "Parameters were invalid (REGEX Failure)"
    }
  } else {
    Write-Host "No parameters given"
  }

  return $arguments
}

#$packageParameters is the variable you end up with if you call choco with the --params switch
$arguments = parsePackageParameters($packageParameters)

Write-Host $arguments["myParameter"]