Error when Build-Module params are specified but no Build.psd1 present

[gaelcolas]

When invoking the command Build-Module with required Parameters like this:
Build-Module -Path .\Source\ModuleBuilder.psd1 -OutputDirectory ..\ -VersionedOutputDirectory
but the Build.psd1 file is absent, we get the error below.
The only way to work around it is to create a Build.psd1 with an empty hashtable.

I think we should make that file optional when required parameters are provided, and clearer error when not.

> build-module -Path .\Source\ModuleBuilder.psd1 -OutputDirectory ..\ -VersionedOutputDirectory
Import-Metadata : Can't find file C:\src\ModuleBuilder\Source\[Bb]uild.psd1
At C:\src\ModuleBuilder\output\ModuleBuilder\1.0.0\ModuleBuilder.psm1:83 char:18
+ ... BuildInfo = Import-Metadata -Path (Join-Path $ModuleSource [Bb]uild.p ...
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (:) [Import-Metadata], ItemNotFoundException
    + FullyQualifiedErrorId : PathNotFound,Metadata\Import-Metadata,Import-Metadata

InitializeBuild : You cannot call a method on a null-valued expression.
At C:\src\ModuleBuilder\output\ModuleBuilder\1.0.0\ModuleBuilder.psm1:610 char:27
+             $ModuleInfo = InitializeBuild $SourcePath
+                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [InitializeBuild], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull,InitializeBuild

[Jaykul]

Ultimately, build.psd1 is basically our project file -- we're even calculating relative paths relative to the build.psd1 -- if it was called build.psproj would you still be trying to get rid of it? I suppose you would.

I don't know.

One problem with this is: what is -OutputDirectory ..\ relative to, if there's no build.psd1 file?

[Jaykul]

So, now that all the paths are relative to the module.psd1 instead of the build.psd1 ...

[gaelcolas]

I'm waiting for the current version to be released before tackling this one, as I need it for my current project.
/cc @Jaykul

[Jaykul]

Sorry that took so long.

[johlju]

@gaelcolas This issue should be resolved once the PR #90 is merged?