azure repo which files have changed

whatschanged.yaml

    - task: AzurePowerShell@5
      displayName: Deploy Changes
      inputs:
        azureSubscription: ''
        ScriptType: 'InlineScript'
        Inline: |
          # Get the changes for the current build
          $webClient = New-Object Net.WebClient
          $token = "Bearer $env:SYSTEM_ACCESSTOKEN"
          $headers = @{ Authorization = $token }
          $devOpsUrl = "$(System.TeamFoundationCollectionUri)"
          $projectName = "$(System.TeamProject)"
          $repoId = "$(Build.Repository.Id)"
          $repoName = "$(Build.Repository.Name)"
          $BuildId = "$(Build.buildID)"

          $request = "$devOpsUrl$projectName/_apis/build/builds/$BuildID/changes"
          $response = Invoke-WebRequest -Uri $request -Headers $headers
          
          $json = ($response.Content | ConvertFrom-Json)

          # Get the earliest Commit

          $EarliestCommitID = ($json.Value |Sort-Object timestamp  | Select-Object -First 1).id
          $LatestCommitID = ($json.Value |Sort-Object timestamp  -Descending| Select-Object -First 1).id

          $fileschanged = git diff-tree --dirstat=files,0 --no-commit-id --name-only -r $EarliestCommitID^ $LatestCommitID

          $deployscriptchanged =  $fileschanged.Where{($_ -like '*ResourceGroups*') -and (($_ -like '*deploy.ps1') -or ($_ -like '*deploy.params.json'))}

          $Message = "These are the files that have changed - {0}" -f ($fileschanged -join ' '|Out-String)
          Write-Host "##[section] $Message"

          # Do the magic thinngs here
          
        azurePowerShellVersion: 'LatestVersion'
      env:
        SYSTEM_ACCESSTOKEN: $(system.accesstoken)
        pwsh: true