Powershell:检查文件是否被锁定 [英] Powershell: Check if a file is locked

问题描述

我在自动执行部署时遇到问题，在停止服务后，文件上仍然有锁，无法删除它.我真的不想开始沉迷于睡眠以制造通常有用的东西".有没有一种很好的方法来正确解决锁定文件的问题，也许是某种等到文件可移动":

I have a problem with automating a deployment, after I stop the service there is still a lock on the file and I am unable to delete it. I really do not want to start hacking about with sleeps to make something that 'usually works'. Is there a good way to properly resolve the problem of locked files, perhaps some kind of 'wait until file is removable':

Get-ChildItem:拒绝访问路径"D:\ MyDirectory \".

Get-ChildItem : Access to the path 'D:\MyDirectory\' is denied.

在这种情况下，测试路径"还不够，因为该文件夹同时存在并且我可以访问它.

'Test-Path' is not sufficient in this case as the folder both exists and I have access to it.

推荐答案

感谢David Brabant在最初的问题下发布了此解决方案的链接.看来我可以通过以下功能开始做这件事:

With thanks to David Brabant who posted a link to this solution under the initial question. It appears I can do this by starting off with the following function:

function Test-FileLock {
  param (
    [parameter(Mandatory=$true)][string]$Path
  )

  $oFile = New-Object System.IO.FileInfo $Path

  if ((Test-Path -Path $Path) -eq $false) {
    return $false
  }

  try {
    $oStream = $oFile.Open([System.IO.FileMode]::Open, [System.IO.FileAccess]::ReadWrite, [System.IO.FileShare]::None)

    if ($oStream) {
      $oStream.Close()
    }
    return $false
  } catch {
    # file is locked by a process.
    return $true
  }
}

然后添加一个带有超时的等到"功能.

Then add a 'wait until' function with a timeout.

感谢您的帮助！

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