Powershell – Zipping only files using powershell

compressionpowershell

I'm trying to zip all the files in a single directory to a different folder as part of a simple backup routine.

The code runs ok but doesn't produce a zip file:

$srcdir = "H:\Backup"
$filename = "test.zip"
$destpath = "K:\"

$zip_file = (new-object -com shell.application).namespace($destpath + "\"+ $filename)
$destination = (new-object -com shell.application).namespace($destpath)

$files = Get-ChildItem -Path $srcdir

foreach ($file in $files) 
{
    $file.FullName;
    if ($file.Attributes -cne "Directory")
    {
        $destination.CopyHere($file, 0x14);
    }
}

Any ideas where I'm going wrong?

Best Answer

This works in V2, should work in V3 too:

$srcdir = "H:\Backup"
$zipFilename = "test.zip"
$zipFilepath = "K:\"
$zipFile = "$zipFilepath$zipFilename"

#Prepare zip file
if(-not (test-path($zipFile))) {
    set-content $zipFile ("PK" + [char]5 + [char]6 + ("$([char]0)" * 18))
    (dir $zipFile).IsReadOnly = $false  
}

$shellApplication = new-object -com shell.application
$zipPackage = $shellApplication.NameSpace($zipFile)
$files = Get-ChildItem -Path $srcdir | where{! $_.PSIsContainer}

foreach($file in $files) { 
    $zipPackage.CopyHere($file.FullName)
#using this method, sometimes files can be 'skipped'
#this 'while' loop checks each file is added before moving to the next
    while($zipPackage.Items().Item($file.name) -eq $null){
        Start-sleep -seconds 1
    }
}
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