Unable to update PSResourceGet via Artifactory remote repo

[sean-r-williams]

Prerequisites

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

Steps to reproduce

• Configure Artifactory with a remote repository targeting PSGallery.
• Connect PSResourceGet to this repository. (Because PSGallery is v2-only, the connection to Artifactory within PSResourceGet must also be v2).
• Update PSResourceGet with Update-PSResource Microsoft.PowerShell.PSResourceGet.

Expected behavior

PS> Update-PSResource Microsoft.PowerShell.PSResourceGet
PS> # update completes without issues

Actual behavior

PS> update-psresource Microsoft.PowerShell.PSResourceGet -Repository Artifactory
update-psresource : Package does not exist on the server
At line:1 char:1
+ update-psresource Microsoft.PowerShell.PSResourceGet -Repository Arti ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Microsoft.Power...lets.FindHelper:FindHelper) [Update-PSResource], ResourceNotFoundException
    + FullyQualifiedErrorId : FindNameConvertToPSResourceFailure,Microsoft.PowerShell.PSResourceGet.Cmdlets.UpdatePSResource

Error details

No response

Environment data

ModuleType Version    PreRelease Name                                ExportedCommands
---------- -------    ---------- ----                                ----------------
Binary     1.0.4.1               Microsoft.PowerShell.PSResourceGet  {Find-PSResource, Get-InstalledPSResource, Get-PSResourceRepository, Get-PSScriptFileInfo…}


Name                           Value
----                           -----
PSVersion                      7.4.2
PSEdition                      Core
GitCommitId                    7.4.2
OS                             Microsoft Windows 10.0.19045
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Visuals

This seems to be the combination of two separate issues:

• PSResourceGet changes behavior in calls like FindPackageById() if we detect the upstream repo is a JFrog repo. After discussing with JFrog support, they confirmed that NuGet calls like this are being passed unfettered to the upstream. This means that PSGallery is receiving subtly different API call parameters when it's being reflected through Artifactory.
• PSGallery, if provided with the exact filter string IsLatestVersion, is returning unexpected results. I filed PowerShell/PowerShellGallery#273 to track this.