PowerShell + 7Zip + Long File Paths + Delimon.Win32.IO.dll

PowerShell Help
1

Hello PowerShell Guru’s,

I am wondering if someone can tell me why this code isn’t working. I’ve reviewed and reviewed it, searched Google up and down with no love.

 #Set variables for subversion paths
$ScriptPath = (Split-Path $myinvocation.MyCommand.path -Parent)
[Reflection.Assembly]::LoadFile("C:\Program Files (x86)\Delimon\Delimon.Win32.IO\Delimon.Win32.IO.dll")
Add-Type -AssemblyName Delimon.Win32.IO
Use Delimon.Win32.IO

$scriptDir = "C:\FII"
$z = "C:\Program Files\7-Zip\7z.exe"

$files=gci $scriptDir -r | where {$_.Extension -match "zip"}
foreach ($file in $files) {
    $source = $file.FullName
    $destination = Delimon.Win32.IO.Directory.Join-Path (Split-Path -parent $file.FullName) $file.BaseName
    write-host -fore green $destination
    $destination = "-o" + $destination
    & ".\$z" x -y $source $destination
}

$files=gci $scriptDir -r | where {$_.Extension -match "prd"}
foreach ($file in $files) {
    $source = $file.FullName
    $destination = Delimon.Win32.IO.Directory.Join-Path (Split-Path -parent $file.FullName) $file.BaseName
    write-host -fore green $destination
    $destination = "-o" + $destination
    Start-Process 'C:\Program Files\7-Zip\7z.exe x -y $source $destination'
}

Here are the errors I am currently receiving:

GAC    Version        Location                                                                    
---    -------        --------                                                                    
False  v4.0.30319     C:\Program Files (x86)\Delimon\Delimon.Win32.IO\Delimon.Win32.IO.dll        
Add-Type : Cannot add type. The assembly 'Delimon.Win32.IO' could not be found.
At C:\SVN_Repo\Untitled7.ps1:2 char:1
+ Add-Type -AssemblyName Delimon.Win32.IO
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Delimon.Win32.IO:String) [Add-Type], Exception
    + FullyQualifiedErrorId : ASSEMBLY_NOT_FOUND,Microsoft.PowerShell.Commands.AddTypeCommand
 
Add-Type : Cannot add type. One or more required assemblies are missing.
At C:\SVN_Repo\Untitled7.ps1:2 char:1
+ Add-Type -AssemblyName Delimon.Win32.IO
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [Add-Type], InvalidOperationException
    + FullyQualifiedErrorId : ASSEMBLY_LOAD_ERRORS,Microsoft.PowerShell.Commands.AddTypeCommand
 
Use : The term 'Use' is not recognized as the name of a cmdlet, function, script file, or 
operable program. Check the spelling of the name, or if a path was included, verify that the path 
is correct and try again.
At C:\SVN_Repo\Untitled7.ps1:3 char:1
+ Use Delimon.Win32.IO
+ ~~~
    + CategoryInfo          : ObjectNotFound: (Use:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException
 
Delimon.Win32.IO.Directory.Join-Path : The term 'Delimon.Win32.IO.Directory.Join-Path' is not 
recognized as the name of a cmdlet, function, script file, or operable program. Check the 
spelling of the name, or if a path was included, verify that the path is correct and try again.
At C:\SVN_Repo\Untitled7.ps1:11 char:20
+     $destination = Delimon.Win32.IO.Directory.Join-Path (Split-Path -parent $fil ...
+                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Delimon.Win32.IO.Directory.Join-Path:String) [], C 
   ommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

& : The term '.\C:\Program Files\7-Zip\7z.exe' is not recognized as the name of a cmdlet, 
function, script file, or operable program. Check the spelling of the name, or if a path was 
included, verify that the path is correct and try again.
At C:\SVN_Repo\Untitled7.ps1:14 char:7
+     & ".\$z" x -y $source $destination
+       ~~~~~~
    + CategoryInfo          : ObjectNotFound: (.\C:\Program Files\7-Zip\7z.exe:String) [], Comman 
   dNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

Start-Process : This command cannot be run due to the error: The system cannot find the file 
specified.
At C:\SVN_Repo\Untitled7.ps1:23 char:5
+     Start-Process 'C:\Program Files\7-Zip\7z.exe x -y $source $destination'
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [Start-Process], InvalidOperationException
    + FullyQualifiedErrorId : InvalidOperationException,Microsoft.PowerShell.Commands.StartProces 
   sCommand
2

You don’t need anything external to perform a Join-Path

$ScriptPath = (Split-Path $myinvocation.MyCommand.path -Parent)

#-match is a regex, so you can do || which is OR
$files=gci "C:\FII" -recurse | where {$_.Extension -match "zip||prd"}
foreach ($file in $files) {
    $source = $file.FullName
    #Join-Path is a standard Powershell cmdLet
    $destination = Join-Path (Split-Path -parent $file.FullName) $file.BaseName
    write-host -fore green $destination
    $destination = "-o" + $destination
    #Start-Process needs the path to the exe and then the arguments passed seperately. You
    #can also add -wait to have the process complete before moving to the next
    Start-Process -FilePath "C:\Program Files\7-Zip\7z.exe" -ArgumentList "x -y $source $destination" -Wait
}
3

No need to use 3rd party tools to extract zip files.

Add-Type -assembly “system.io.compression.filesystem"

Get-ChildItem \\path\to\files -Filter *.zip | ForEach-Object {
$zipfile = $_.FullName ; $dest = $_.FullName -replace "\.zip$"
[io.compression.zipfile]::ExtractToDirectory($zipfile,$dest)
Write-Verbose "$($_.Name) Extracted" -Verbose
}
4

Rob,

Thank you so very much! I’ve tested your suggestions on a directory where I have test zip and prd archives. Now to test on the full SVN repository where I have thousands of zip archives. The reason I need to use 7zip is to overcome the 260 character max limit for file path names.

Thank you so much for helping move me along,

Richard

5

Question about this topic. Is there a way that I can skip two directories that I do not want to change the names of the zip files?