`get` without `--input` crashes with unhandled null pipeline exception on `Repository`

[Gijsreyn]

Prerequisites

• Write a descriptive title.
• Make sure you are able to repro it on the latest released version
• Search the existing issues.

Steps to reproduce

Running dsc resource get --resource Microsoft.PowerShell.PSResourceGet/Repository without providing --input causes an unhandled exception instead of a clear error message.

dsc resource get --resource Microsoft.PowerShell.PSResourceGet/Repository

Expected behavior

The resource exits with a non-zero code and emits a structured error trace explaining that --input is required.

Actual behavior

PID <number>: Exiting with error code 1 due to unhandled exception: Cannot bind argument to parameter 'InputObject' because it is null.

Error details

Environment data

ModuleType Version    PreRelease Name                                PSEdition ExportedCommands
---------- -------    ---------- ----                                --------- ----------------
Binary     1.3.0      preview1   Microsoft.PowerShell.PSResourceGet  Core,Desk {Compress-PSResource, Find-PSResource, …

Key   : PSVersion
Value : 7.6.2
Name  : PSVersion


Key   : PSEdition
Value : Core
Name  : PSEdition


Key   : GitCommitId
Value : 7.6.2
Name  : GitCommitId


Key   : OS
Value : Microsoft Windows 10.0.26100
Name  : OS


Key   : Platform
Value : Win32NT
Name  : Platform


Key   : PSCompatibleVersions
Value : {1.0, 2.0, 3.0, 4.0…}
Name  : PSCompatibleVersions


Key   : PSRemotingProtocolVersion
Value : 2.4
Name  : PSRemotingProtocolVersion


Key   : SerializationVersion
Value : 1.1.0.1
Name  : SerializationVersion


Key   : WSManStackVersion
Value : 3.0
Name  : WSManStackVersion

Visuals

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