Merged PR 19934: Create checksum file for global tools

Cherry-picking the checksum changes:
1. #15678
1. #17056

tools/releaseBuild/azureDevOps/templates/nuget.yml

@@ -65,6 +65,14 @@ jobs:
       artifactName: finalResults
       downloadPath: '$(System.ArtifactsDirectory)'
 
+  - task: DownloadBuildArtifacts@0
+    displayName: 'Download PowerShell build artifacts - macosPkgResults'
+    inputs:
+      buildType: current
+      downloadType: single
+      artifactName: macosPkgResults
+      downloadPath: '$(System.ArtifactsDirectory)'
+
   - powershell: 'Get-ChildItem $(System.ArtifactsDirectory) -recurse'
     displayName: 'Capture downloaded artifacts'
 
@@ -188,6 +196,67 @@ jobs:
       Get-ChildItem "$(System.ArtifactsDirectory)\signed\globaltool" -Recurse
     displayName: Move global tool packages to subfolder and capture
 
+  - pwsh: |
+      $packagePath = (Join-Path $(System.ArtifactsDirectory) checksum)
+      New-Item $packagePath -ItemType Directory -Force > $null
+      $srcPaths = @("$(System.ArtifactsDirectory)\finalResults", "$(System.ArtifactsDirectory)\macosPkgResults", "$(System.ArtifactsDirectory)\signed")
+
+      $packages  = Get-ChildItem -Path $srcPaths -Include *.zip, *.tar.gz, *.msi*, *.pkg, *.deb, *.rpm -Exclude "PowerShell-Symbols*" -Recurse
+      $packages | ForEach-Object { Copy-Item $_.FullName -Destination $packagePath -Verbose }
+
+      $packagePathList = Get-ChildItem $packagePath -Recurse | Select-Object -ExpandProperty FullName | Out-String
+      Write-Verbose -Verbose $packagePathList
+
+      Get-ChildItem -Path $packagePath | 
+          ForEach-Object {
+            Write-Verbose -Verbose "Generating checksum file for $($_.FullName)"
+            $packageName = $_.Name
+            $hash = (Get-FileHash -Path $_.FullName -Algorithm SHA512).Hash.ToLower()
+
+            # the '*' before the packagename signifies it is a binary
+            "$hash *$packageName"
+          } |
+          Out-File -FilePath "$packagePath\SHA512SUMS" -Force
+
+      $fileContent = Get-Content -Path "$packagePath\SHA512SUMS" -Raw | Out-String
+      Write-Verbose -Verbose -Message $fileContent
+
+      Copy-Item -Path "$packagePath\SHA512SUMS" -Destination '$(System.ArtifactsDirectory)\signed\' -verbose
+    displayName: Generate checksum file for packages
+
+  - pwsh: |
+      $packagePath = (Join-Path $(System.ArtifactsDirectory) checksum_gbltool)
+      New-Item $packagePath -ItemType Directory -Force > $null
+      $srcPaths = @("$(System.ArtifactsDirectory)\signed\globaltool")
+      $packages  = Get-ChildItem -Path $srcPaths -Include *.nupkg -Recurse
+      $packages | ForEach-Object { Copy-Item $_.FullName -Destination $packagePath -Verbose }
+
+      $packagePathList = Get-ChildItem $packagePath -Recurse | Select-Object -ExpandProperty FullName | Out-String
+      Write-Verbose -Verbose $packagePathList
+
+      $checksums = Get-ChildItem -Path $packagePath |
+          ForEach-Object {
+              Write-Verbose -Verbose "Generating checksum file for $($_.FullName)"
+              $packageName = $_.Name
+              $hash = (Get-FileHash -Path $_.FullName -Algorithm SHA512).Hash.ToLower()
+
+              # the '*' before the packagename signifies it is a binary
+              "$hash *$packageName"
+          }
+
+      $checksums | Out-File -FilePath "$packagePath\SHA512SUMS" -Force
+
+      $fileContent = Get-Content -Path "$packagePath\SHA512SUMS" -Raw | Out-String
+      Write-Verbose -Verbose -Message $fileContent
+
+      Copy-Item -Path "$packagePath\SHA512SUMS" -Destination '$(System.ArtifactsDirectory)\signed\globaltool\' -verbose
+    displayName: Generate checksum for global tools
+
+  - template: upload-final-results.yml
+    parameters:
+      artifactPath: '$(System.ArtifactsDirectory)\checksum'
+      artifactFilter: SHA512SUMS
+
   - task: AzureFileCopy@4
     displayName: 'Upload NuGet packages to Azure'
     inputs: