Functions/Import-Plugin.ps1
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function Import-Plugin { <# .SYNOPSIS Loads any plugins. #> [CmdletBinding()] param( [Parameter(Mandatory=$true)] # The path to load the plugins from. $Path ) Set-StrictMode -Version 'Latest' if( -not (Test-Path -Path $Path -PathType Container) ) { Write-Error ('Plugin path ''{0}'' not found.' -f $Path) return } # Load known plug-ins. $knownPlugins = @( 'Start-MigrationOperation', 'Complete-MigrationOperation' ) $knownPlugins | ForEach-Object { Join-Path -Path 'function:' -ChildPath $_ } | Where-Object { Test-Path -Path $_ } | Remove-Item -WhatIf:$false $expectedFunctions = @() Get-ChildItem -Path $Path -Filter '*.ps1' -File | ForEach-Object { $expectedFunctions += $_ . $_.FullName Join-Path -Path 'function:' -ChildPath $_.BaseName } | Where-Object { Test-Path -Path $_ } | Get-Item | ForEach-Object { $_ | Remove-Item -WhatIf:$false # Re-create the function in script scope. Invoke-Expression -Command @" function script:$($_.Name) { $($_.Definition) } "@ } $expectedFunctions | ForEach-Object { $functionPath = Join-Path -Path 'function:' -ChildPath $_.BaseName if( -not (Test-Path -Path $functionPath) ) { Write-Error ('Plugin ''{0}'' not found. Expected file ''{1}'' to implement function ''{0}''.' -f $_.BaseName,$_.FullName) } } } |