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Copy-NativeTensorFlowLibs.ps1

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.SYNOPSIS

Copy the native TensorFlow library to enable the packing a nuget to make

them available to TensorFlow.NET

.DESCRIPTION

The TensorFlow libraries are copied for Windows and Linux and it becomes

possible to bundle a meta-package containing them.

.PARAMETER SkipCpuLibraries

Setting this to true skips the downloading of the CPU version of the

TensorFlow libraries.

By default the CPU version of the libraries are downloaded and put in the

relevant projects.

.PARAMETER SkipGpuLibraries

Setting this to tru skips the downloading of the GPU version of the

TensorFlow libraries.

By default the GPU version of the libraries are downloaded and put in the

releavant projects.

param(

[switch] $SkipCpuLibraries = $false,

[switch] $SkipGpuLibraries = $false

)

function Expand-TarGzFiles {

.SYNOPSIS

Expands the given list of files from the given archive into the given

target directory.

.PARAMETER Archive

Path to the archive that should be considered.

.PARAMETER Files

Files that should be extracted from the archive.

.PARAMETER TargetDirectory

Directory into which the files should be expanded.

param

(

[Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [string] $Archive,

[Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [string []] $Files,

[Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [string] $TargetDirectory

)

& 7z e $Archive -o"$TargetDirectory"

$TarArchive = Join-Path $TargetDirectory "libtensorflow.tar"

& 7z e $TarArchive $Files -o"$TargetDirectory"

Remove-Item $TarArchive

}

function Expand-ZipFiles {

.SYNOPSIS

Expands the given list of files from the given archive into the given target directory.

.PARAMETER Archive

Path to the archive that should be considered.

.PARAMETER Files

Files that should be extracted from the archive.

.PARAMETER TargetDirectory

Directory into which the files should be expanded.

param(

[Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [string] $Archive,

[Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [string []] $Files,

[Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [string] $TargetDirectory

)

& 7z e $Archive $Files -o"$TargetDirectory"

}

function Split-ArchiveFromUrl {

.SYNOPSIS

Extracts the archive name out of the given Url.

.PARAMETER ArchiveUrl

Url of the archive that will be downloaded.

param(

[Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [string] $ArchiveUrl

)

$uriParts = $ArchiveUrl.split("/")

$ArchivePath = $uriParts[$uriParts.Count - 1]

return $ArchivePath

}

function Copy-Archive {

.SYNOPSIS

This function copies the given binary file to the given target location.

.PARAMETER ArchiveUrl

Url where the archive should be downloaded from.

.PARAMETER TargetDirectory

Target directory where the archive should be downloaded.

param (

[Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]

[string] $ArchiveUrl,

[Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)]

[string] $TargetDirectory

)

$ArchiveName = Split-ArchiveFromUrl $ArchiveUrl

$TargetPath = [IO.Path]::Combine($PSScriptRoot, "..", "packages", $ArchiveName)

if (Test-Path $TargetPath -PathType Leaf) {

Write-Error "$TargetPath already exists, please remove to download againg."

return $TargetPath

}

if (-not (Test-Path $TargetDirectory -PathType Container)) {

Write-Host "Creating missing $TargetDirectory"

New-Item -Path $TargetDirectory -ItemType Directory

}

Write-Host "Downloading $ArchiveUrl, this might take a while..."

$wc = New-Object System.Net.WebClient

$wc.DownloadFile($ArchiveUrl, $TargetPath)

return $TargetPath

}

$LinuxGpuArchive = "https://storage.googleapis.com/tensorflow/libtensorflow/libtensorflow-gpu-linux-x86_64-1.14.0.tar.gz"

$LinuxCpuArchive = "https://storage.googleapis.com/tensorflow/libtensorflow/libtensorflow-cpu-linux-x86_64-1.14.0.tar.gz"

$LinuxFiles = @(".\libtensorflow.tar", ".\lib\libtensorflow.so", ".\lib\libtensorflow.so.1", ".\lib\libtensorflow.so.1.14.0", `

".\lib\libtensorflow_framework.so", ".\lib\libtensorflow_framework.so.1", ".\lib\libtensorflow_framework.so.1.14.0")

$WindowsGpuArchive = "https://storage.googleapis.com/tensorflow/libtensorflow/libtensorflow-gpu-windows-x86_64-1.14.0.zip"

$WindowsCpuArchive = "https://storage.googleapis.com/tensorflow/libtensorflow/libtensorflow-cpu-windows-x86_64-1.14.0.zip"

$WindowsFiles = @("lib\tensorflow.dll")

$PackagesDirectory = [IO.Path]::Combine($PSScriptRoot, "..", "packages")

if (-not $SkipGpuLibraries) {

$Archive = Copy-Archive -ArchiveUrl $WindowsGpuArchive -TargetDirectory $PackagesDirectory

$TargetDirectory = [IO.Path]::Combine($PSScriptRoot, "..", "redist", "runtime.win-x64.SciSharp.TensorFlow-Gpu.Redist")

Expand-ZipFiles $Archive $WindowsFiles $TargetDirectory

$Archive = Copy-Archive -ArchiveUrl $LinuxGpuArchive -TargetDirectory $PackagesDirectory

$TargetDirectory = [IO.Path]::Combine($PSScriptRoot, "..", "redist", "runtime.linux-x64.SciSharp.Tensorflow-Gpu.Redist")

Expand-TarGzFiles $Archive $LinuxFiles $TargetDirectory

}

if (-not $SkipCpuLibraries) {

$Archive = Copy-Archive -ArchiveUrl $WindowsCpuArchive -TargetDirectory $PackagesDirectory

$TargetDirectory = [IO.Path]::Combine($PSScriptRoot, "..", "redist", "runtime.win-x64.SciSharp.TensorFlow-Cpu.Redist")

Expand-ZipFiles $Archive $WindowsFiles $TargetDirectory

$Archive = Copy-Archive -ArchiveUrl $LinuxCpuArchive -TargetDirectory $PackagesDirectory

$TargetDirectory = [IO.Path]::Combine($PSScriptRoot, "..", "redist", "runtime.linux-x64.SciSharp.Tensorflow-Cpu.Redist")

Expand-TarGzFiles $Archive $LinuxFiles $TargetDirectory

}