Created
February 22, 2024 17:01
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Powershell script to create iso file from a folder
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| function Write-IStreamToFile([__ComObject] $istream, [string] $fileName) | |
| { | |
| # NOTE: We cannot use [System.Runtime.InteropServices.ComTypes.IStream], | |
| # since PowerShell apparently cannot convert an IStream COM object to this | |
| # Powershell type. (See http://stackoverflow.com/a/9037299/223837 for | |
| # details.) | |
| # It turns out that .NET/CLR _can_ do this conversion. | |
| # | |
| # That is the reason why method FileUtil.WriteIStreamToFile(), below, | |
| # takes an object, and casts it to an IStream, instead of directly | |
| # taking an IStream inputStream argument. | |
| $typedef = @" | |
| using System; | |
| using System.IO; | |
| using System.Runtime.InteropServices.ComTypes; | |
| namespace My | |
| { | |
| public static class FileUtil { | |
| public static void WriteIStreamToFile(object i, string fileName) { | |
| IStream inputStream = i as IStream; | |
| FileStream outputFileStream = File.OpenWrite(fileName); | |
| int bytesRead = 0; | |
| int offset = 0; | |
| byte[] data; | |
| do { | |
| data = Read(inputStream, 2048, out bytesRead); | |
| outputFileStream.Write(data, 0, bytesRead); | |
| offset += bytesRead; | |
| } while (bytesRead == 2048); | |
| outputFileStream.Flush(); | |
| outputFileStream.Close(); | |
| } | |
| unsafe static private byte[] Read(IStream stream, int toRead, out int read) { | |
| byte[] buffer = new byte[toRead]; | |
| int bytesRead = 0; | |
| int* ptr = &bytesRead; | |
| stream.Read(buffer, toRead, (IntPtr)ptr); | |
| read = bytesRead; | |
| return buffer; | |
| } | |
| } | |
| } | |
| "@ | |
| # $cp = New-Object CodeDom.Compiler.CompilerParameters | |
| # $cp.CompilerOptions = "/unsafe" | |
| # $cp.WarningLevel = 4 | |
| # $cp.TreatWarningsAsErrors = $true | |
| $PSV = $PSVersionTable.PSVersion.Major | |
| if ($PSV -ge 6) { | |
| $cp = "/unsafe" | |
| Add-Type -CompilerOptions $cp -TypeDefinition $typedef | |
| } | |
| elseif ($PSV -le 5 -and $PSV -ge 3) { | |
| $cp = New-Object CodeDom.Compiler.CompilerParameters | |
| $cp.CompilerOptions = "/unsafe" | |
| $cp.WarningLevel = 4 | |
| $cp.TreatWarningsAsErrors = $true | |
| Add-Type --CompilerParameters $cp -TypeDefinition $typedef | |
| } | |
| # Add-Type -CompilerParameters $cp -TypeDefinition | |
| [My.FileUtil]::WriteIStreamToFile($istream, $fileName) | |
| } | |
| Function New-ISOFileFromFolder { | |
| <# | |
| .SYNOPSIS | |
| Creates an ISO file from a filepath | |
| #> | |
| param( | |
| [Parameter(Mandatory=$true)] | |
| [String]$FilePath, | |
| [Parameter(Mandatory=$true)] | |
| [String]$Name, | |
| [Parameter(Mandatory=$true)] | |
| [String]$ResultFullFileName | |
| ) | |
| write-host "Creating ISO $Name" -ForegroundColor Green | |
| $fsi = New-Object -ComObject IMAPI2FS.MsftFileSystemImage | |
| $dftd = New-Object -ComObject IMAPI2.MsftDiscFormat2Data | |
| $Recorder = New-Object -ComObject IMAPI2.MsftDiscRecorder2 | |
| $fsi.FileSystemsToCreate = 7 | |
| $fsi.VolumeName = $Name | |
| $fsi.FreeMediaBlocks = 1000000 #default 332800 | |
| $fsi.Root.AddTreeWithNamedStreams($FilePath,$false) | |
| $resultimage = $fsi.CreateResultImage() | |
| $resultStream = $resultimage.ImageStream | |
| Write-IStreamToFile $resultStream $ResultFullFileName | |
| } | |
| New-ISOFileFromFolder -FilePath {xxx} -Name {xxx} -ResultFullFileName {xxx} |
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