function Get-ProjectMetadata {
  <#
    .SYNOPSIS
    Get metadata for a Chef Software, Inc. project
    .DESCRIPTION
    Get metadata for project
    .EXAMPLE
    iex (new-object net.webclient).downloadstring('https://omnitruck.chef.io/install.ps1'); Get-ProjectMetadata -project chef -channel stable

    Gets the download url, MD5 checksum, and SHA256 checksum for the latest stable release of Chef.
    .EXAMPLE
    iex (irm 'https://omnitruck.chef.io/install.ps1'); Get-ProjectMetadata -project chefdk -channel stable -version 0.8.0

    Gets the download url, MD5 checksum, and SHA256 checksum for ChefDK 0.8.0.
  #>
  [cmdletbinding()]
  param (
    # Base url to retrieve metadata from.
    [uri]$base_server_uri = '<%= base_url %>',
    [string]
    # Project to install
    # chef - Chef Client
    # chefdk - Chef Development Kit
    # angrychef - AngryChef
    # server and container are not valid windows targets
    [validateset('chef', 'chefdk', 'angrychef')]
    [string]
    $project = 'chef',
    # Version of the application to install
    # This parameter is optional, if not supplied it will provide the latest version,
    # and if an iteration number is not specified, it will grab the latest available iteration.
    # Partial version numbers are also acceptable (using v=11
    # will grab the latest 11.x client which matches the other flags).
    [string]
    $version,
    # Release channel to install from
    $channel = 'unstable',
    # The following legacy switches are just aliases for the current channel
    [switch]
    $prerelease,
    [switch]
    $nightlies
  )

  # PowerShell is only on Windows ATM
  $platform = 'windows'
  Write-Verbose "Platform: $platform"

  # TODO: No Win10 build endpoint yet
  switch -regex ((get-wmiobject win32_operatingsystem).version) {
    '10\.0\.\d+' {$platform_version = '2012r2'}
    '6\.3\.\d+'  {$platform_version = '2012r2'}
    '6\.2\.\d+'  {$platform_version = '2012'}
    '6\.1\.\d+'  {$platform_version = '2008r2'}
    '6\.0\.\d+'  {$platform_version = '2008'}
  }
  Write-Verbose "Platform Version: $platform_version"

  # TODO: When we ship a 64 bit ruby for Windows.
  $machine = 'i386'
  Write-Verbose "Machine: $machine"
  Write-Verbose "Project: $project"

  <% artifacts.each do |artifact| %>
    $artifact_info_dir = "$($env:temp)/artifact_info/<%= File.join(artifact.platform, artifact.platform_version, artifact.architecture)%>"
    New-Item -ItemType directory -Path $artifact_info_dir -force
    New-Item -ItemType file "$($artifact_info_dir)/artifact_info" -force
    "url <%= artifact.url%>" | out-file "$artifact_info_dir/artifact_info"
    "md5 <%= artifact.md5%>" | out-file "$artifact_info_dir/artifact_info" -Append
    "sha256 <%= artifact.sha256%>" | out-file "$artifact_info_dir/artifact_info" -Append
  <% end %>

  $artifact_info_for_platform = Get-Content "$($env:temp)/artifact_info/$($platform)/$($platform_version)/$($machine)/artifact_info"

  $package_metadata = ($artifact_info_for_platform).trim() -split '\n' |
    foreach { $hash = @{} } {$key, $value = $_ -split '\s+'; $hash.Add($key, $value)} {$hash}

  Write-Verbose "Project details: "
  foreach ($key in $package_metadata.keys) {
    Write-Verbose "`t$key = $($package_metadata[$key])"
  }
  $package_metadata
}