Create a helper function to reduce code duplication

[johlju]

Sampler/.build/tasks/Build-Module.ModuleBuilder.build.ps1

Lines 7 to 18 in f688cfe

	(Get-ChildItem $BuildRoot\*\*.psd1 -Exclude 'build.psd1', 'analyzersettings.psd1' | Where-Object {
	($_.Directory.Name -match 'source|src' -or $_.Directory.Name -eq $_.BaseName) -and
	$(try
	{
	Test-ModuleManifest $_.FullName -ErrorAction Stop
	}
	catch
	{
	Write-Warning $_
	$false
	}) }
	).BaseName

[gaelcolas]

That'd be great.
Whoever tackle this, please make sure there's no precedence issue (Sampler must be loaded before the tasks using that function are imported), and make sure build.ps1 does not depend on Sampler.
Reason is that build.ps1 can be used to bootstrap something else than a module, and may be use with something else than Sampler (low coupling, high cohesion).

It is, however, tightly coupled with Invoke-Build, powershell-yaml, and Resolve-Dependency.ps1 currently (but not an issue as long as we know about it).