Automatically send a PR for runtime changes

.github/workflows/ReportDiff.ps1

@@ -1,6 +1,6 @@
 # Check the code is in sync
 $changed = (select-string "nothing to commit" artifacts\status.txt).count -eq 0
-if (-not $changed) { exit }
+if (-not $changed) { return $changed }
 # Check if tracking issue is open/closed
 $Headers = @{ Authorization = 'token {0}' -f $ENV:GITHUB_TOKEN; };
 $result = Invoke-RestMethod -Uri $issue
@@ -26,3 +26,4 @@ $diff
 $json = ConvertTo-Json -InputObject @{ 'body' = $body }
 $issue = $issue + '/comments'
 $result = Invoke-RestMethod -Method POST -Headers $Headers -Uri $issue -Body $json
+return $changed

.github/workflows/runtime-sync.yml

@@ -1,7 +1,7 @@
 name: AspNetCore-Runtime Code Sync
 on:
   # Test this script using on: push
-  # push
+  # push:
   schedule:
     # * is a special character in YAML so you have to quote this string
     # https://help.github.com/en/actions/automating-your-workflow-with-github-actions/events-that-trigger-workflows#scheduled-events-schedule
@@ -43,10 +43,25 @@ jobs:
         name: results
         path: artifacts
     - name: Check and Notify
+      id: check
       shell: pwsh
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |
         # Test this script using an issue in the local forked repo
         $issue = 'https://github.com/api/repos/dotnet/aspnetcore/issues/18943'
-        .\aspnetcore\.github\workflows\ReportDiff.ps1
+        $changed = .\aspnetcore\.github\workflows\ReportDiff.ps1
+        echo "::set-output name=changed::$changed"
+    - name: Send PR
+      if: steps.check.outputs.changed == 'true'
+      # https://github.com/marketplace/actions/create-pull-request
+      uses: peter-evans/create-pull-request@v2
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+        path: .\aspnetcore
+        commit-message: 'Sync shared code from runtime'
+        title: 'Sync shared code from runtime'
+        body: 'This PR was automatically generated to sync shared code changes from runtime. Fixes #18943'
+        labels: area-servers
+        branch: github-action/sync-runtime
+        branch-suffix: timestamp