TFS Build PowerShell步骤中的Robocopy报告失败但没有错误 [英] Robocopy in TFS Build PowerShell Step Reports Failure But Has No Error

问题描述

我的powershell脚本在运行时没有在日志文件中报告错误，但是TFS 2015构建步骤报告了错误.我需要执行特殊的回叫吗?

My powershell script runs without error reported in the log file, but the TFS 2015 build step reports an error. Do I need to perform a special call back?

这是一种新样式，而不是基于XAML的样式.

This is a new style build, not a XAML based one.

该脚本没什么特别的，它调用robocopy，成功完成.

The script is nothing special, it calls robocopy, which occurs successfully.

这是脚本:

[CmdletBinding()]
param (
  [string]$localWorkspace,
  [string]$destination 
)
begin{}
process
{
  try
  {
    ## Script
    $ServiceDirs = Get-ChildItem $localWorkspace -Recurse | ?{ $_.PSIsContainer -eq $True -and $_.Name -match "^Service$" } | % { $_.FullName }

    $serviceCollection = @{}
    foreach ($Service in $ServiceDirs)
    {
      $ServiceName = Get-ChildItem $Service | ?{$_.Name -match ".*\.csproj$" } | % { $_.BaseName }

      $binpath = ($service + "\bin\release")
      $serviceCollection.Add($serviceName , $binpath)
    }

    $serviceCollection.GetEnumerator() | % { 
      Write-Verbose "Processing service: $($_.key)" 

      $currentDestination = ($destination + "\" + $_.key)
      $output = robocopy $_.value $currentDestination /MIR /NFL /NDL /NJH /NJS /nc /ns /np
    }
  }
  catch
  {
    write-host "Caught an exception:" 
    write-host "Exception Type: $($_.Exception.GetType().FullName)" 
    write-host "Exception Message: $($_.Exception.Message)" 
  }
}
end{}

如果我取消沉默，并使用/DEBUG，并且在TFS构建日志中没有任何捕获，则可以看到所有robocopy输出.

I can see all the robocopy output, if I unsilence it and use /DEBUG and none of the catch in the TFS build log.

奇怪的是，当我强制执行错误时，捕获执行并且该步骤报告成功.

Strangely, when I force an error, the catch executes and the step reports success.

报告的错误消息是:

任务PowerShell失败.这导致作业失败.看日志 有关该任务的更多详细信息.

Task PowerShell failed. This caused the job to fail. Look at the logs for the task for more details.

推荐答案

TL; DR 检查呼叫中使用的退出代码，或使用exit离开 脚本.

---

RoboCopy 使用一套退出代码，包括:

TL;DR Check the exit codes used in the calls, or use exit to leave the script.

---

RoboCopy uses a suite of exit codes including:

0×00 0没有错误发生，并且没有完成复制. 源目录树和目标目录树是完全同步的.

0×00 0 No errors occurred, and no copying was done. The source and destination directory trees are completely synchronized.

0×01 1成功复制了一个或多个文件(即，新文件已到达).

0×01 1 One or more files were copied successfully (that is, new files have arrived).

_{(完整列表在这里)}

因为脚本没有exit语句，所以$LastExitCode的值为1，这对于Robocopy有意义，但会导致TFS认为脚本失败.

Because the script didn't have an exit statement the value of $LastExitCode was 1 which makes sense for Robocopy but causes TFS to believe the script to fail.

使用exit禁止了Robocopy退出代码，因此TFS认为该脚本有效.但是，这意味着所有Robocopy信息都被压制了.

Using exit supressed the Robocopy exit code so TFS believed the script to have worked. However, this meant that any Robocopy information was being suppressed.

根据本文，将最后一行更改为exit ($LastExitCode -band 24)可以正确解决该问题.

Changing the final line to exit ($LastExitCode -band 24) solved the issue properly, as per this article.

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