azure-pipelines-code-mirror.yml

# Disable CI triggers, only called using Maestro
trigger: none
variables:
- group: Mirror-Credentials
- template: /eng/common/templates-official/variables/pool-providers.yml@self

resources:
  repositories:
  - repository: 1ESPipelineTemplates
    type: git
    name: 1ESPipelineTemplates/1ESPipelineTemplates
    ref: refs/tags/release
extends:
  template: v1/1ES.Official.PipelineTemplate.yml@1ESPipelineTemplates
  parameters:
    pool:
      name: $(DncEngInternalBuildPool)
      image: windows.vs2019.amd64
      os: windows
# Moves code from GitHub into internal repos
    stages:
    - stage: Merge_GitHub_to_Azure_DevOps
      jobs:
      - template: /eng/common/templates/jobs/jobs.yml@self
        parameters:
          enableTelemetry: true
          helixRepo: dotnet/arcade
          jobs:
          - job: Merge_GitHub_to_Azure_DevOps
            enableSBOM: false
            pool:
              ${{ if eq(variables['System.TeamProject'], 'DevDiv') }}:
                name: AzurePipelines-EO
                image: 1ESPT-Ubuntu22.04
                os: linux
              # If it's not devdiv, it's dnceng
              ${{ if ne(variables['System.TeamProject'], 'DevDiv') }}:
                name: $(DncEngInternalBuildPool)
                image: 1es-mariner-2
                os: linux
            variables:
            - name: WorkingDirectoryName
              value: repo-dir
            steps:
            - ${{ if ne(variables['System.TeamProject'], 'DevDiv') }}:
              - powershell: |
                  $azDORepo = "$(GithubRepo)".Replace("/", "-");
                  # Check that the parameters look correct
                  if ($azDORepo -eq "" -or "$(BranchToMirror)" -eq "")
                  {
                    Write-Error "Expected valid branch and GitHub repo in the form of owner/repo"
                  }
                  Write-Host "##vso[task.setvariable variable=AzDORepoName]$azDORepo"
                  Write-Host "Mirroring branch '$(BranchToMirror)' from GitHub repo '$(GithubRepo)' to Azure DevOps repo '$azDORepo'."
                displayName: Calculate Mirrored Branch Names (DncEng)
            - ${{ if eq(variables['System.TeamProject'], 'DevDiv') }}:
              - powershell: |
                  $azDORepo = "$(GithubRepo)".Replace("/", "-") + "-Trusted";
                  # Check that the parameters look correct
                  if ($azDORepo -eq "" -or "$(BranchToMirror)" -eq "")
                  {
                    Write-Error "Expected valid branch and GitHub repo in the form of owner/repo"
                  }
                  Write-Host "##vso[task.setvariable variable=AzDORepoName]$azDORepo"
                  Write-Host "Mirroring branch '$(BranchToMirror)' from GitHub repo '$(GithubRepo)' to Azure DevOps repo '$azDORepo'."
                displayName: Calculate Mirrored Branch Names (DevDiv)
            - script: |
                git clone https://dotnet-maestro-bot:$(BotAccount-dotnet-maestro-bot-PAT)@github.com/$(GithubRepo) $(WorkingDirectoryName) -b $(BranchToMirror)
              displayName: Clone GitHub repo
            - ${{ if eq(variables['System.TeamProject'], 'DevDiv') }}:
              - script: |
                  git remote add azdo-mirror https://dn-bot:$(dn-bot-devdiv-build-rw-code-rw)@dev.azure.com/devdiv/devdiv/_git/$(AzDORepoName)
                displayName: Add Azure DevOps remote (DevDiv)
                workingDirectory: $(WorkingDirectoryName)
            - ${{ if ne(variables['System.TeamProject'], 'DevDiv') }}:
              - script: |
                  git remote add azdo-mirror https://dn-bot:$(dn-bot-dnceng-build-rw-code-rw)@dev.azure.com/dnceng/internal/_git/$(AzDORepoName)
                displayName: Add Azure DevOps remote (DncEng)
                workingDirectory: $(WorkingDirectoryName)
            - script: |
                git reset --hard origin/$(BranchToMirror)
              displayName: Hard reset local branch to GitHub branch
              workingDirectory: $(WorkingDirectoryName)
            - powershell: |
                git push azdo-mirror $(BranchToMirror) --tags $(ExtraPushArgs)
                if ($LASTEXITCODE -EQ 0) {
                  Write-Host "Push was successful"
                  exit
                }
                git fetch azdo-mirror
                git fetch origin
                $commits = (git --no-pager rev-list origin/$(BranchToMirror)..azdo-mirror/$(BranchToMirror) | Measure-Object -line).Lines
                if ($commits -NE 0) {
                  Write-Host "##vso[task.LogIssue type=error;]Mirror repository $(AzDORepoName) has unexpected commits"
                  git --no-pager log origin/$(BranchToMirror)..azdo-mirror/$(BranchToMirror)
                  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 azdo-mirror $(BranchToMirror) $(ExtraPushArgs)
                  if ($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
              displayName: Push changes to Azure DevOps repo
              workingDirectory: $(WorkingDirectoryName)

            - powershell: |
                $commit = (git rev-parse HEAD).Substring(0, 7)
                $target = "$(GithubRepo) $(BranchToMirror)".Replace('/', ' ')
                Write-Host "##vso[build.updatebuildnumber]$target $commit"
                Write-Host "##vso[build.addbuildtag]$target"
              displayName: Broadcast target, branch, commit in metadata
              continueOnError: true
              condition: always()
              workingDirectory: $(WorkingDirectoryName)