Expand-Archive does not honor -Confirm:$false

[ChrisLynchHPE]

Originally opened here https://github.com/PowerShell/PowerShell/issues/12590, but advised I open an issue on this repo instead.

Steps to reproduce

Using the following command will prompt you to confirm the creation of sub-directories if they exist within the ZIP (like a Hyper-V VM template in ZPI form)

$Path = "C:\Mydirectory\archive.zip"
Expand-Archive -Path $Path -DestinationPath $env:TEMP\MyTempDirectory -Confirm:$false                                                                                                                      

Expected behavior

When using Expand-Archive, the Cmdlet should honor the use of -Confirm:$false, especially when creating directories that do not exist.

Actual behavior

When passing the -Confirm:$False parameter, the user is prompted for confirmation to create the destination directory, or any embedded child directory within the ZIP archive.

$Path = "C:\Mydirectory\archive.zip"
Expand-Archive -Path $Path -DestinationPath $env:TEMP\MyTempDirectory -Confirm:$false 
Unzipping C:\Mydirectory\archive.zip                                    
Confirm
Are you sure you want to perform this action?
Performing the operation "Create Directory" on target "Destination: 
C:\Users\username\AppData\Local\Temp\MyTempDirectory ". 
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"):  Y

Are you sure you want to perform this action?
Performing the operation "Create Directory" on target "Destination:
C:\Users\username\AppData\Local\Temp\MyTempDirectory\EmbeddedDir1 ". 
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"): 

Environment data

Windows 10, 1909

[PS] C:\Windows\System32> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      7.0.0
PSEdition                      Core
GitCommitId                    7.0.0
OS                             Microsoft Windows 10.0.18363
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

[ChrisLynchHPE]

Any status on this issue?

[ChrisLynchHPE]

Is anyone monitoring this?

[etorbenson]

Add me to the list of people whom this is an issue for... I'm trying to write a script that doesn't depend on external archive programs to manipulate ZIP files and the prompting for subdirectory creation doesn't allow me to run this non-interactively.

[woter1832]

@microsoft, is this going to be fixed? Nobody from MS has even acknowledged this bug.

I'm specifying both -Force and -Confirm:$false, yet it still prompts to create a new directory.

My environment:

[PS] C:\Windows\System32> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      7.1.2
PSEdition                      Core
GitCommitId                    7.1.2
OS                             Microsoft Windows 10.0.18363
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Module version:

PS C:\Program Files\PowerShell\7> Get-Command Expand-Archive

CommandType     Name                                               Version    Source
-----------     ----                                               -------    ------
Function        Expand-Archive                                     1.2.5      Microsoft.PowerShell.Archive

I've had to revert to the old method:

Add-Type -AssemblyName System.IO.Compression.FileSystem
function Unzip
{
    param([string]$zipfile, [string]$outpath)

    [System.IO.Compression.ZipFile]::ExtractToDirectory($zipfile, $outpath)
}

Unzip "C:\a.zip" "C:\a"

Incidentally, another annoying "feature" of Expand-Archive is that it doesn't create a destination child directory with the name of the archive. Yes, I understand not everyone will want this and one could argue the directory should be included in the zip, but, like your PS 7.1.3 archive, not everyone does this, therefore, it should be a parameter. The above (old method) code does this, whereas, Expand-Archive -Path C:\Temp\PowerShell-7.1.3-win-x64.zip -DestinationPath "C:\Program Files
Will try and extract the contents of the zip to C:\Program Files\ as opposed to C:\Program Files\PowerShell-7.1.3-win-x64.

I have to mess around creating a directory using the Zip's file name.

[ayousuf23]

This should be fixed in 2.0.1-preview2.