runtime-main-mirror.yml

# Disable triggers as it should only be called using Maestro
trigger: none

jobs:
  - job: Mirror_runtime_to_runtimelab
    displayName: Mirror runtime to runtimelab
    pool:
      vmImage: 'windows-2019'
    variables:
    - name: WorkingDirectoryName
      value: repo-dir
    - name: SourceRemote
      value: runtime
    - name: SourceBranch
      value: main
    - name: TargetBranch
      value: runtime-main
    - group: DotNet-Maestro

    steps:
    - checkout: none

    - script: git clone https://runtimelab-bot:$(_runtimelab-bot)@github.com/dotnet/runtimelab $(WorkingDirectoryName) -b $(TargetBranch)
      displayName: Clone runtimelab
    - script: git remote add $(SourceRemote) https://github.com/dotnet/$(SourceRemote)
      displayName: Add source $(SourceRemote)
      workingDirectory: $(WorkingDirectoryName)
    - script: git fetch $(SourceRemote) $(SourceBranch)
      displayName: Git fetch $(SourceRemote)/$(SourceBranch)
      workingDirectory: $(WorkingDirectoryName)
    - script: git reset --hard $(SourceRemote)/$(SourceBranch)
      displayName: Reset branch
      workingDirectory: $(WorkingDirectoryName)

    - task: PowerShell@2
      displayName: Push changes to runtimelab/$(TargetBranch)
      inputs:
        targetType: inline
        workingDirectory: $(WorkingDirectoryName)
        script: |
          git push origin $(TargetBranch) $(ExtraPushArgs)

          if ($LASTEXITCODE -EQ 0) {
            Write-Host "Push was successful"
            exit
          }

          git fetch origin
          git fetch $(SourceRemote)
          $commits = (git --no-pager rev-list $(SourceRemote)/$(SourceBranch)..origin/$(TargetBranch) | Measure-Object -line).Lines
          if ($commits -NE 0) {
            Write-Host "##vso[task.LogIssue type=error;]Mirror repository runtimelab has unexpected commits"
            git --no-pager log $(SourceRemote)/$(SourceBranch)..origin/$(TargetBranch)
            exit 1
          }

          Write-Host "##vso[task.LogIssue type=warning;]Push failed for unknown reason"
          $retryattempt=0
          while ($retryattempt -LT 3) {
            $retryattempt+=1
            Write-Host "Retry attempt $retryattempt of 3 in 5 seconds..."
            Start-Sleep -Seconds 5

            git push origin $(TargetBranch) $(ExtraPushArgs)
            if ($LASTEXITCODE -EQ 0) {
              Write-Host "Push successful"
              exit
            }
          }

          Write-Host "##vso[task.LogIssue type=error;]git failed to push to Azure DevOps mirror"
          exit 1