Expand-CompressedItem.ps1
function Expand-CompressedItem { <# .SYNOPSIS Expands a compressed archive or container. .DESCRIPTION Expands a compressed archive or container. Currently only ZIP files are supported. Per default the contents of the ZIP is expanded in the current directory. If an item already exists, you will be visually prompted to overwrite it, skip it, or to have a second copy of the item exanded. This is due to the mechanism how this is implemented (via Shell.Application). .INPUTS InputObject can either be a full path to an archive or a FileInfo object. In addition it can also be an array of these objects. Path expects a directory or a DirectoryInfo object. .OUTPUTS This Cmdlet has no return value. .PARAMETER InputObject Specifies the archive to expand. You can either pass this parameter as a path and name to the archive or as a FileInfo object. You can also pass an array of archives to the parameter. In addition you can pipe a single archive or an array of archives to this parameter as well. .PARAMETER Path Specifies the destination path where to expand the archive. By default this is the current directory. .EXAMPLE Expands an archive 'mydata.zip' to the current directory. Expand-CompressedItem mydata.zip .EXAMPLE Expands an archive 'mydata.zip' to the current directory and prompts for every item to be extracted. Expand-CompressedItem mydata.zip -Confirm .EXAMPLE Get-ChildItem Y:\Source\*.zip | Expand-CompressedItem -Path Z:\Destination -Format ZIP -Confirm You can also pipe archives to the Cmdlet. Enumerate all ZIP files in 'Y:\Source' and pass them to the Cmdlet. Each item to be extracted must be confirmed. .EXAMPLE Expands archives 'data1.zip' and 'data2.zip' to the current directory. Expand-CompressedItem "Y:\Source\data1.zip","Y:\Source\data2.zip" .EXAMPLE Expands archives 'data1.zip' and 'data2.zip' to the current directory. @("Y:\Source\data1.zip","Y:\Source\data2.zip") | Expand-CompressedItem .LINK Online Version: http://dfch.biz/biz/dfch/PS/System/Utilities/Expand-CompressedItem/ .NOTES See module manifest for required software versions and dependencies at: http://dfch.biz/biz/dfch/PS/System/Utilities/biz.dfch.PS.System.Utilities.psd1/ .HELPURI #> [CmdletBinding( SupportsShouldProcess = $true , ConfirmImpact = "Low" , HelpURI='http://dfch.biz/biz/dfch/PS/System/Utilities/Expand-CompressedItem/' )] PARAM ( [ValidateScript( { Test-Path($_); } )] [Parameter(Mandatory = $true, ValueFromPipeline = $true, Position = 0)] $InputObject , [ValidateScript( { Test-Path($_); } )] [Parameter(Mandatory = $false, Position = 1)] [System.IO.DirectoryInfo] $Path = $PWD.Path , [ValidateSet('default', 'ZIP')] [Parameter(Mandatory = $false)] [string] $Format = 'default' ) BEGIN { $datBegin = [datetime]::Now; [string] $fn = $MyInvocation.MyCommand.Name; Log-Debug -fn $fn -msg ("CALL. InputObject: '{0}'. Path '{1}'" -f $InputObject.FullName, $Path.FullName) -fac 1; # Currently only ZIP is supported switch($Format) { "ZIP" { # We use the Shell to extract the ZIP file. If using .NET v4.5 we could have used .NET classes directly more easily. $ShellApplication = new-object -com Shell.Application; } default { # We use the Shell to extract the ZIP file. If using .NET v4.5 we could have used .NET classes directly more easily. $ShellApplication = new-object -com Shell.Application; } } $CopyHereOptions = 4 + 1024 + 16; } PROCESS { $fReturn = $false; $OutputParameter = $null; foreach($Object in $InputObject) { $Object = Get-Item $Object; if($PSCmdlet.ShouldProcess( ("Extract '{0}' to '{1}'" -f $Object.Name, $Path.FullName) )) { Log-Debug $fn ("Extracting '{0}' to '{1}' ..." -f $Object.Name, $Path.FullName) $CompressedObject = $ShellApplication.NameSpace($Object.FullName); foreach($Item in $CompressedObject.Items()) { if($PSCmdlet.ShouldProcess( ("Extract '{0}' to '{1}'" -f $Item.Name, $Path.FullName) )) { $ShellApplication.Namespace($Path.FullName).CopyHere($Item, $CopyHereOptions); } } } } return $OutputParameter; } END { # Cleanup if($ShellApplication) { $ShellApplication = $null; } $datEnd = [datetime]::Now; Log-Debug -fn $fn -msg ("RET. fReturn: [{0}]. Execution time: [{1}]ms. Started: [{2}]." -f $fReturn, ($datEnd - $datBegin).TotalMilliseconds, $datBegin.ToString('yyyy-MM-dd HH:mm:ss.fffzzz')) -fac 2; } } # function # You might want to add an Alias "unzip" as well # Set-Alias -Name 'Unzip' -Value 'Expand-CompressedItem'; # if($MyInvocation.ScriptName) { Export-ModuleMember -Function Expand-CompressedItem -Alias Unzip; } if($MyInvocation.ScriptName) { Export-ModuleMember -Function Expand-CompressedItem; } # # Copyright 2014-2015 d-fens GmbH # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # 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