Public/Get-IgugaChecksum.ps1
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function Get-IgugaChecksum() { <# .SYNOPSIS Get the checksum info from a given file .DESCRIPTION Calculate the hash of specific file and return the checksum info .PARAMETER FilePath Sets the path to a given file .PARAMETER Algorithm Sets the hashing algorithm to be used. The allowed algotithms are: MD5, SHA1, SHA256, SHA384 and SHA512 .PARAMETER AlternactiveFilePath Sets the alternactive path to use on the checksum file path .EXAMPLE PS> Get-IgugaChecksum -FilePath "C:\Test\File.txt" -Algorithm MD5 .EXAMPLE # using an alternactive file path PS> Get-IgugaChecksum -FilePath "C:\Test\File.txt" -Algorithm MD5 -AlternactiveFilePath ".\File.txt" #> [OutputType([IgugaChecksum])] [CmdletBinding()] param( [Parameter(Position = 0, Mandatory = $true)] [string] $FilePath, [ValidateSet("MD5", "SHA1", "SHA256", "SHA384", "SHA512")] [string] $Algorithm = "SHA256", [string] [AllowEmptyString()] $AlternactiveFilePath = "" ) $WindowsDirSep = [System.IO.Path]::DirectorySeparatorChar $LinuxDirSep = [System.IO.Path]::AltDirectorySeparatorChar $FileResults = Get-FileHash -LiteralPath $FilePath -Algorithm $Algorithm if ([string]::IsNullOrWhiteSpace($AlternactiveFilePath)) { $AlternactiveFilePath = $FileResults.Path } $AlternactiveFilePath = $AlternactiveFilePath.Replace($WindowsDirSep, $LinuxDirSep) if ($AlternactiveFilePath.StartsWith(".$LinuxDirSep")) { $AlternactiveFilePath = $AlternactiveFilePath.Substring(".$LinuxDirSep".Length) } $Checksum = $FileResults.Hash + " " + $AlternactiveFilePath; return [IgugaChecksum]::new($FileResults.Path.Replace($WindowsDirSep, $LinuxDirSep), $FileResults.Hash, $Checksum) } |