Question

我们目前正在开发一个脚本，它会压缩某个文件，通过API将其上传到Web服务器，然后再次在本地删除。

这是我们目前的代码：

$sourceFile = "D:\myfile.txt"
$destinationFile = "D:\myfile.zip"

function Add-Zip
{
     Param([string]$zipfilename) 

     if (-not (Test-Path($zipfilename)))
     {
          Set-Content $zipfilename ("PK" + [char]5 + [char]6 + ("$([char]0)" * 18))
          (dir $zipfilename).IsReadOnly = $false    
     }

     $shellApplication = New-Object -Com Shell.Application
     $zipPackage = $shellApplication.NameSpace($zipfilename)

     foreach ($file in $input) 
     { 
          $zipPackage.CopyHere($file.FullName)
          Start-Sleep -Milliseconds 500
     }
}

dir $sourceFile | Add-Zip $destinationFile
Write-Host "zip created"

# code to upload the zip here

Remove-Item $destinationFile
Write-Host "zip removed"

它完美地创建了拉链，上传也有效，但是当尝试使用Remove-Item删除zip文件时，我们得到了

删除项目：无法删除项目D：\ myfile.zip：进程无法访问文件＆＃39; D：\ myfile.zip＆＃39;因为它正被另一个进程使用。

我们如何摆脱这种锁定？我们可以.Dispose()之后能够删除文件吗？

Answer 1

好的，在这里找到另一种方式：https://danvers72.wordpress.com/2014/11/18/creating-a-zip-file-from-a-single-file/

这是我的工作代码：

$sourceFile = "D:\myfile.txt"
$destinationFile = "D:\myfile.zip"

<#
.Synopsis
   Creates a new archive from a file
.DESCRIPTION
   Creates a new archive with the contents from a file. This function relies on the
   .NET Framework 4.5. On windwows Server 2012 R2 Core you can install it with
   Install-WindowsFeature Net-Framework-45-Core
.EXAMPLE
   New-ArchiveFromFile -Source c:\test\test.txt -Destination c:\test.zip
#>
function New-ArchiveFromFile
{
    [CmdletBinding()]
    [OutputType([int])]
    Param
    (
        # Param1 help description
        [Parameter(Mandatory=$true,
                   ValueFromPipelineByPropertyName=$false,
                   Position=0)]
        [string]
        $Source,
        # Param2 help description
        [Parameter(Mandatory=$true,
                   ValueFromPipelineByPropertyName=$false,
                   Position=1)]
        [string]
        $Destination
    )
    Begin
    {
        [System.Reflection.Assembly]::LoadWithPartialName("System.IO.Compression.FileSystem") | Out-Null
    }
    Process
    {
        try
        {
            Write-Verbose "Creating archive $Destination…."
            $zipEntry = "$Source" | Split-Path -Leaf
            $zipFile = [System.IO.Compression.ZipFile]::Open($Destination, 'Update')
            $compressionLevel = [System.IO.Compression.CompressionLevel]::Optimal
            [System.IO.Compression.ZipFileExtensions]::CreateEntryFromFile($zipfile,$Source,$zipEntry,$compressionLevel)
            Write-Verbose "Created archive $destination."
        }
        catch [System.IO.DirectoryNotFoundException]
        {
            Write-Host "ERROR: The source $source does not exist!" -ForegroundColor Red
        }
        catch [System.IO.IOException]
        {
            Write-Host "ERROR: The file $Source is in use or $destination already exists!" -ForegroundColor Red
        }
        catch [System.UnauthorizedAccessException]
        {
            Write-Host "ERROR: You are not authorized to access the source or destination" -ForegroundColor Red
        }
    }
    End
    {
        $zipFile.Dispose()
    }
}

New-ArchiveFromFile -Source $sourceFile -Destination $destinationFile

# code to upload the zip here

Remove-Item $destinationFile

创建后如何删除zip文件？文件一直在使用中

1 个答案: