New-TempDirectory.ps1
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# Copyright 2012 - 2015 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. .DESCRIPTION The temporary directory is created in the current user's `TEMP` directory (e.g. `$env:TEMP`). We use `[IO.Path]::GetRandomFilename` for the directory's name. The directory is returned as a `System.IO.DirectoryInfo` object. If/when temporary directories fill up, it can be hard to identify the process(es) responsible. To help identify which tests are creating (and not removing) temporary directories, supply a unique, static name as the value to the `Prefix` parameter. We recommend the name of the test fixture creating the temp directory. .OUTPUTS System.IO.DirectoryInfo. .EXAMPLE $tempDir = New-TempDirectory Demonstrates how to create a temporary directory. .EXAMPLE $tempDir = New-TempDirectory 'Test-NewTempDirectory+' Demonstrates how to use a custom, identifiable prefix for your temporary directory's name. This is helpful for identfying tests that forget to clean up after themselves. #> param( [Parameter(Position=0)] [string] # An optional prefix for the temporary directory name. Helps in identifying tests and things that don't properly clean up after themselves. $Prefix ) Set-StrictMode -Version 'Latest' $newTmpDirName = [System.IO.Path]::GetRandomFileName() if( $Prefix ) { $Prefix = Split-Path -Leaf -Path $Prefix $newTmpDirName = '{0}-{1}' -f $Prefix,$newTmpDirName } New-Item (Join-Path -Path $env:TEMP -ChildPath $newTmpDirName) -Type Directory } Set-Alias -Name 'New-TempDir' -Value 'New-TempDirectory' |