Powershell script to generate nuget packages with dependencies

GenerateSitecoreNugetPackages.ps1

param(
  [string] $Major = "9",
  [string] $Minor = "0",
  [string] $Update = "0",
  [string] $Date = "170622",
  [string] $nugetPath = ".\tools\nuget.exe",
  [string] $downloadsPath = "C:\\inetpub\\wwwroot\\sitecore9",
  [string] $outputPath = "C:\\LocalNuGet\\Generated",
  [string] $nuspecTemplate = ".\tools\package.nuspec.xml"
)

function Publish-NugetPackageFromWebsiteBin(
  [string] $major,
  [string] $minor,
  [string] $update,
  [string] $date,
  [string] $nugetPath,
  [string] $downloadsPath,
  [string] $outputPath,
  [string] $nuspecTemplate)
{
  $bin = Resolve-Path ("$downloadsPath\bin")
  $nugetPath = Resolve-Path $nugetPath
  $nuspecTemplate = Resolve-Path $nuspecTemplate

  $updateText = "Initial Release"
  if($update -gt 0)
  {
    $updateText = "$major.$minor Update-$update"
  }

  $description = "Sitecore Experience Platform $major.$minor rev. $date ($updateText) Preview Release"
  $version = "$major.$minor.$update.$date"

  # clean-up
  $output = New-Item -ItemType Directory -Path ($outputPath + "\" + [System.Guid]::NewGuid())

  echo 'Output is ' + $outputPath

  #call functions
  Get-ChildItem $bin |
    Where-Object {$_.Name -match "^Sitecore.*\.dll$"} |
    Foreach { Publish-NugetPackageFromDLL $bin $_.Name $output.FullName $description $version $nugetPath $nuspecTemplate }

  # Remove-Item $output -Force -Recurse
}

function Publish-NugetPackageFromDLL(
  $binPath, $assemblyName, $output, $description, $productVersion, $nugetPath, $nuspecTemplate)
{
    $tempPath = $output + "\tmp"
    # dlls
    $file = Get-Item "$binPath\$assemblyName"
    $id = [System.IO.Path]::GetFileNameWithoutExtension($file) + ".NoReferences"

    $version = $productVersion
    $framework = Get-FrameworkVersion($file)

    # create package directory
    $tmpFolder =New-Item $tempPath -type directory -Force
    $packageFolder = New-Item "$tmpFolder\$id" -type directory -Force
    $libsFolder = New-Item "$packageFolder\lib" -type directory -Force
    $frameworkFolder = New-Item "$libsFolder\$framework" -type directory -Force

    # packages
    $nuspeck = New-Nuspec $file $binPath $nuspecTemplate $id $productVersion $description $framework $packageFolder

    # write files
    Copy-Item $file $frameworkFolder -Force

    $assemblyXml = "$binPath\$id.xml"
    if(Test-Path $assemblyXml)
    {
        Copy-Item $assemblyXml $frameworkFolder -Force
    }

    $assemblyPub = "$binPath\$id.pub"
    if(Test-Path $assemblyPub)
    {
        Copy-Item $assemblyPub $frameworkFolder -Force
    }

    # echo "FullName is " $tempPath\$Id\$Id.nuspec

    $output = New-Item "$output\packages" -type directory -Force
    & $nugetPath pack $tempPath\$Id\$Id.nuspec -OutputDirectory $output

    #if (-Not([string]::IsNullOrEmpty($apiKey)) -AND -Not([string]::IsNullOrEmpty($nugetFeed))){
    #  & $nugetPath push "$output\$id.$productVersion.nupkg" -ApiKey $apiKey -Source $nugetFeed
    #}
}

function New-Nuspec(
  $assemblyFile,
  [string] $binPath,
  [string] $nuspecTemplate,
  [string] $packageId,
  [string] $packageVerison,
  [string] $packageDescription,
  [string] $packageFramework,
  [string] $output
)
{
  $xml = [xml](Get-Content $nuspecTemplate)

  # Set ID
  $node = $xml.package.metadata
  $node.ID = $packageId
  $node.title = $packageId
  $node.version = $packageVerison
  $node.description = "Autogenerated NuGet package form $packageDescription"
  $node.summary = "Summary : " + $packageId + "."
  $files = $xml.CreateElement('files');
  $file = $xml.CreateElement('file');
  
  echo "Bin Path " $binPath
  echo "AssemblyPath " $assemblyFile

  $assemblyPath = "lib\" + $packageFramework + "\" + $assemblyFile.Name;
  $file.SetAttribute('src', $assemblyPath ); 
  $file.SetAttribute('target', $assemblyPath );

  $files.AppendChild($file);
  $xml.package.AppendChild($files);


  # get framework version
  # $group.SetAttribute('targetFramework', $packageFramework )

#  $assemblyDependencies = Get-AssemblyDependencies($assemblyFile)
#  $dependencies = $xml.CreateElement('dependencies');


#  foreach ($assembly in $assemblyDependencies){
#
#     $depVersion = Find-AssemblyAndReturnVersion "$pathToDependencies\$($assembly.Name).dll" $packageVerison
#
#     if ($depVersion -ne "0.0.0")
#     {
#        $dep = $xml.CreateElement('dependency')
#        $dep.SetAttribute('id', $assembly.Name )
#        $dep.SetAttribute('version', '[' + $(Find-AssemblyAndReturnVersion "$binPath\$($assembly.Name).dll" $packageVerison) + ']')
#        $group.AppendChild($dep)
#     }
#  }

#  $dependencies.AppendChild($group)
#  $node.AppendChild($dependencies)
  # write nuspeck
  $xml.Save("$output\$packageId.nuspec")

  return Get-Item "$output\$packageId.nuspec"
}

function Get-FrameworkVersion([string] $path)
{
    Write-Host "DLL is " $path

    $bytes = [System.IO.File]::ReadAllBytes($path)
    $assembly = [System.Reflection.Assembly]::Load($bytes)
    $methodSig = $assembly.GetCustomAttributes([System.Runtime.Versioning.TargetFrameworkAttribute], $false)

    if ($methodSig -eq $null -Or $methodSig.FrameworkName -eq $null)
    {
      Write-Host "Framework Version is 2.0"
      return "net20"
    }

    Write-Host "Framework Version is " $methodSig.FrameworkName

    if($methodSig.FrameworkName.Contains("v4.6.2"))
    {
        return "NET462"
    }
    elseif($methodSig.FrameworkName.Contains("v4.5.2"))
    {
        return "NET452"
    }
    elseif($methodSig.FrameworkName.Contains("v4.5"))
    {
        return "net45"
    }

    return "net40"
}

function Get-AssemblyDependencies([string] $path)
{
    return [System.Reflection.Assembly]::ReflectionOnlyLoadFrom($path).GetReferencedAssemblies() |
        Where-Object {$_.Name -match "Sitecore\.[A-Za-z\.]*"} |
        Select Name |
        Where { -not([string]::IsNullOrEmpty($_)) } |
        Sort-Object -Property Name | 
        Get-Unique
}

function Find-AssemblyAndReturnVersion([string] $pathToAssembly, [string] $productVesion)
{
    if (Test-Path $pathToAssembly)
    {
        return $productVesion
    }

    return "0.0.0"
}

Publish-NugetPackageFromWebsiteBin $Major $Minor $Update $Date $nugetPath $downloadsPath $outputPath $nuspecTemplate

package.nuspec.xml

<?xml version="1.0" encoding="utf-8"?>
<package xmlns="http://schemas.microsoft.com/packaging/2013/01/nuspec.xsd">
  <metadata minClientVersion="2.8">
    <id>Sitecore.Kernel.NoReferences</id>
    <version>9.0.170662</version>
    <title>Sitecore.Kernel.NoReferences</title>
    <authors>Sitecore Corporation A/S</authors>
    <owners>Sitecore Corporation A/S</owners>
    <licenseUrl>https://doc.sitecore.net/~/media/C23E989268EC4FA588108F839675A5B6.pdf</licenseUrl>
    <projectUrl>http://doc.sitecore.net/</projectUrl>
    <iconUrl>https://mygetwwwsitecore.blob.core.windows.net/feedicons/sc-packages.png</iconUrl>
    <requireLicenseAcceptance>false</requireLicenseAcceptance>
    <developmentDependency>true</developmentDependency>
    <description>Description: .</description>
    <summary>Summary : .</summary>
    <copyright>© 2017 Sitecore Corporation A/S. All rights reserved. Sitecore® is a registered trademark of Sitecore Corporation A/S.</copyright>
    <language>en-US</language>
  </metadata>
</package>