Allow for Publishing "Packed" Modules to PSGallery

[SydneyhSmith]

Summary of the new feature / enhancement

PSResourceGet Pack and Push

Goals

1. Allow for publishing signed PowerShell modules as nupkgs to PSGallery and ACR (what defines a module? It needs a psd1)
2. Allow for publishing nuspec dependencies into ACR
3. Create a new cmd for packing a PowerShell module

"Pack" design

Compress-PSResource [-Path] <String[]> [-DestinationPath] <String> [-PassThru] [-WhatIf] [-Confirm] [<CommonParameters>]

"Push" design

Add an additional parameter set which takes a path to a nupkg

Publish-PSResource -NupkgPath "myPathtoNupkg" -Repository [Container] [PSGallery] -APIkey -SkipDependencyCheck

Screening for Modules

At this time PSGallery will only support this feature for modules, not arbitrary nupkgs

Proposed technical implementation details (optional)

No response

[SydneyhSmith]

Related issues
#1393
#310

[aluty]

Using NuGet Version: 6.9.1.3 (https://www.nuget.org/downloads)

Symptom
nuget verify -Signatures "%USERPROFILE%\Downloads\name.major.minor.patch.nupkg"

Verifying name.major.minor.patch
%USERPROFILE%\Downloads\name.major.minor.patch.nupkg

Finished with 1 errors and 0 warnings.
NU3005: The package signature file entry is invalid. The central directory header field 'compression method' has an invalid value (8).

Package signature validation failed.

Expected
Original unmangled Nuget package PSModule.

Signature Hash Algorithm: SHA256

Signature type: Author
Verifying the author primary signature with certificate:

  Subject Name: CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
  ...
  
  Successfully verified package 'name.major.minor.patch'.

Problem
Publishing process unpacks, extracts metadata, updates (rewrites and appends tags), and repacks.

Comparing package content of original to published, PSGallery modifies package:

• Updates (appends) values in [Content_Types].xml
• Adds PSGetModuleInfo.xml file
• Updates *.nuspec by removing metadata entries and updating tags.

These repackaging changes invalidate the .signature.p7s file.

See also https://github.com/NuGet/Home/wiki/Package-Immutability