FileSystem/New-TempDirectory.ps1
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# Copyright 2012 Aaron Jensen # # 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. function New-TempDirectory { <# .SYNOPSIS Creates a new temporary directory with a random name. .DESCRIPTION A new temporary directory is created in the current user's `env:TEMP` directory. The directory's name is created using the `Path` class's [GetRandomFileName method](http://msdn.microsoft.com/en-us/library/system.io.path.getrandomfilename.aspx). To add a custom prefix to the directory name, use the `Prefix` parameter. If you pass in a path, only its name will be used. In this way, you can pass `$MyInvocation.MyCommand.Definition` (PowerShell 2) or `$PSCommandPath` (PowerShell 3+), which will help you identify what scripts are leaving cruft around in the temp directory. .LINK http://msdn.microsoft.com/en-us/library/system.io.path.getrandomfilename.aspx .EXAMPLE New-TempDirectory Demonstrates how to create a new temporary directory, e.g. `C:\Users\ajensen\AppData\Local\Temp\5pobd3tu.5rn`. .EXAMPLE New-TempDirectory -Prefix 'Carbon' Demonstrates how to create a new temporary directory with a custom prefix for its name, e.g. `C:\Users\ajensen\AppData\Local\Temp\Carbon5pobd3tu.5rn`. .EXAMPLE New-TempDirectory -Prefix $MyInvocation.MyCommand.Definition Demonstrates how you can use `$MyInvocation.MyCommand.Definition` in PowerShell 2 to create a new, temporary directory, named after the currently executing scripts, e.g. `C:\Users\ajensen\AppData\Local\Temp\New-TempDirectory.ps15pobd3tu.5rn`. .EXAMPLE New-TempDirectory -Prefix $PSCommandPath Demonstrates how you can use `$PSCommandPath` in PowerShell 3+ to create a new, temporary directory, named after the currently executing scripts, e.g. `C:\Users\ajensen\AppData\Local\Temp\New-TempDirectory.ps15pobd3tu.5rn`. #> [CmdletBinding()] [OutputType([IO.DirectoryInfo])] param( [string] # A prefix to use, so you can more easily identify *what* created the temporary directory. If you pass in a path, it will be converted to a file name. $Prefix ) Set-StrictMode -Version 'Latest' $tempDir = [IO.Path]::GetRandomFileName() if( $Prefix ) { $Prefix = Split-Path -Leaf -Path $Prefix $tempDir = '{0}{1}' -f $Prefix,$tempDir } $tempDir = Join-Path -Path $env:TEMP -ChildPath $tempDir New-Item -Path $tempDir -ItemType 'Directory' -Verbose:$VerbosePreference } Set-Alias -Name 'New-TempDir' -Value 'New-TempDirectory' |