Functions/Test-NtfsCompression.ps1
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# 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 Test-NtfsCompression { <# .SYNOPSIS Tests if NTFS compression is turned on. .DESCRIPTION Returns `$true` if compression is enabled, `$false` otherwise. .LINK Disable-NtfsCompression .LINK Enable-NtfsCompression .EXAMPLE Test-NtfsCompression -Path C:\Projects\Carbon Returns `$true` if NTFS compression is enabled on `C:\Projects\CArbon`. If it is disabled, returns `$false`. #> [CmdletBinding()] param( [Parameter(Mandatory=$true)] [string] # The path where compression should be enabled. $Path ) Set-StrictMode -Version 'Latest' Use-CallerPreference -Cmdlet $PSCmdlet -Session $ExecutionContext.SessionState if( -not (Test-Path -Path $Path) ) { Write-Error ('Path {0} not found.' -f $Path) return } $attributes = Get-Item -Path $Path -Force | Select-Object -ExpandProperty Attributes if( $attributes ) { return (($attributes -band [IO.FileAttributes]::Compressed) -eq [IO.FileAttributes]::Compressed) } return $false } |