lancemccarthy/devopsexamples/configure-telerik-nuget

function Configure-TelerikNuGetSource {
	param(
		[Parameter(Mandatory = $true)]
		[string]$ApiKey,
 
		[string]$ApiKeyEnvVarName = "TELERIK_NUGET_API_KEY",
		[string]$SourceName = "Telerik_NuGet_Server",
		[string]$SourceUrl = "https://nuget.telerik.com/v3/index.json",
		[string]$NuGetConfigPath = "./nuget.config"
	)
 
	# Store API key as a user-level environment variable so it is available globally
	[Environment]::SetEnvironmentVariable($ApiKeyEnvVarName, $ApiKey, "User")
	$env:$ApiKeyEnvVarName = $ApiKey
 
	if (-not (Test-Path $NuGetConfigPath)) {
		@"
<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <packageSources />
  <packageSourceCredentials />
</configuration>
"@ | Set-Content -Path $NuGetConfigPath -Encoding UTF8
	}
 
	[xml]$nugetConfig = Get-Content -Path $NuGetConfigPath
 
	if (-not $nugetConfig.configuration.packageSources) {
		$packageSourcesNode = $nugetConfig.CreateElement("packageSources")
		$nugetConfig.configuration.AppendChild($packageSourcesNode) | Out-Null
	}
 
	if (-not $nugetConfig.configuration.packageSourceCredentials) {
		$credentialsNode = $nugetConfig.CreateElement("packageSourceCredentials")
		$nugetConfig.configuration.AppendChild($credentialsNode) | Out-Null
	}
 
	$existingSource = $nugetConfig.configuration.packageSources.add | Where-Object {
		$_.key -eq $SourceName
	}
 
	if ($existingSource) {
		$existingSource.value = $SourceUrl
	} else {
		$sourceNode = $nugetConfig.CreateElement("add")
		$sourceNode.SetAttribute("key", $SourceName)
		$sourceNode.SetAttribute("value", $SourceUrl)
		$nugetConfig.configuration.packageSources.AppendChild($sourceNode) | Out-Null
	}
 
	$existingCredentialNode = $nugetConfig.configuration.packageSourceCredentials.$SourceName
 
	if (-not $existingCredentialNode) {
		$existingCredentialNode = $nugetConfig.CreateElement($SourceName)
		$nugetConfig.configuration.packageSourceCredentials.AppendChild($existingCredentialNode) | Out-Null
	}
 
	$existingCredentialNode.RemoveAll()
 
	$usernameNode = $nugetConfig.CreateElement("add")
	$usernameNode.SetAttribute("key", "Username")
	$usernameNode.SetAttribute("value", "api-key")
	$existingCredentialNode.AppendChild($usernameNode) | Out-Null
 
	$passwordNode = $nugetConfig.CreateElement("add")
	$passwordNode.SetAttribute("key", "ClearTextPassword")
	$passwordNode.SetAttribute("value", "%$ApiKeyEnvVarName%")
	$existingCredentialNode.AppendChild($passwordNode) | Out-Null
 
	$nugetConfig.Save((Resolve-Path $NuGetConfigPath))
 
	Write-Host "Configured Telerik feed '$SourceName' in '$NuGetConfigPath'."
	Write-Host "Saved API key in user environment variable '$ApiKeyEnvVarName'."
	Write-Host "Restart your terminal/IDE so new processes can read the updated environment variable."
}

Configure-TelerikNuGetSource -ApiKey "<telerik-api-key>"