Public/PowerShell/Import-PowerShellYAMLModule.ps1
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function Import-PowerShellYAMLModule { [CmdletBinding()] param ( ) begin { <# Check the current list of modules to make sure we don't have PlatyPS loaded, if we do then bomb out now. Also check to see if we already have PowerShell-YAML loaded, if we do we'll want to keep it loaded so as not to mess with the users environment! #> $LoadedModules = Get-Module if ($LoadedModules.Name -contains 'PlatyPS') { throw "Currently the PlatyPS and PowerShell-YAML modules cannot be loaded at the same time due to an assembly incompatibility.`nSee https://github.com/PowerShell/platyPS/issues/592 for more information" } $PreLoadedPowerShellYAML = $LoadedModules | Where-Object { $_.Name -eq 'powershell-yaml' } } process { try { # If it's already loaded then don't overwrite whatever the user has loaded! if (!$PreLoadedPowerShellYAML) { # First see if the special Brownserve variable is set, if so attempt to download the version from the repo. if ($Global:BrownserveRepoPowerShellYAMLPath) { Write-Verbose 'Loading local version of PowerShell-YAML' Import-Module $Global:BrownserveRepoPowerShellYAMLPath ` -Force ` -ErrorAction 'Stop' ` -Verbose:$false } # Otherwise attempt to load any version installed on the system else { Write-Verbose 'Loading system version of PowerShell-YAML' Import-Module 'powershell-yaml' ` -Force ` -ErrorAction 'Stop' ` -Verbose:$false } } } catch { $ErrorMessage = 'Failed to load powershell-yaml module.' if (!$Global:BrownserveRepoPlatyPSPath) { $ErrorMessage += "`nThe '`$Global:BrownserveRepoPowerShellYAMLPath' variable has not been set and PowerShell failed to load any versions installed locally." } throw "$ErrorMessage.`n$($_.Exception.Message)" } } end { if ($PreLoadedPowerShellYAML) { return $PreLoadedPowerShellYAML } else { return $null } } } |