Adding winget workflows

Author: Lessley Dennington

.github/workflows/release-winget.yml

@@ -0,0 +1,40 @@
+name: "release-winget"
+on:
+  release:
+    types: [released]
+
+  workflow_dispatch:
+    inputs:
+      release:
+        description: 'Release Id'
+        required: true
+        default: 'latest'
+
+jobs:
+  release:
+    runs-on: windows-latest
+    steps:
+      - name: Publish manifest with winget-create
+        run: |
+          # Get correct release asset
+          $github = Get-Content '${{ github.event_path }}' | ConvertFrom-Json
+          $asset = $github.release.assets | Where-Object -Property name -match '64-bit.exe$'
+
+          # Remove 'v' and 'vfs' from the version
+          $github.release.tag_name -match '\d.*'
+          $version = $Matches[0] -replace ".vfs",""
+
+          # Download wingetcreate and create manifests
+          Invoke-WebRequest https://aka.ms/wingetcreate/latest -OutFile wingetcreate.exe
+          .\wingetcreate.exe update Microsoft.Git -u $asset.browser_download_url -v $version -o manifests
+
+          # Manually substitute the name of the default branch in the License
+          # and Copyright URLs since the tooling cannot do that for us.
+          $shortenedVersion = $version -replace ".{4}$"
+          $manifestPath = dir -Path ./manifests -Filter Microsoft.Git.locale.en-US.yaml -Recurse | %{$_.FullName}
+          sed -i "s/vfs-[.0-9]*/vfs-$shortenedVersion/g" "$manifestPath"
+
+          # Submit manifests
+          $manifestDirectory = Split-Path "$manifestPath"
+          .\wingetcreate.exe submit -t "${{ secrets.WINGET_TOKEN }}" $manifestDirectory
+        shell: powershell