Content/tasks.prepare.cake (8 lines of code) (raw):
#addin "Cake.Powershell&version=0.4.8"
Sitecore.Tasks.ConfigureToolsTask = Task("Prepare :: Configure Tools")
.Description("Executes basic configuration to optimize build performance (e.g. hide progress bars)")
.Does(() =>
{
StartPowershellScript("$ProgressPreference='SilentlyContinue';");
StartPowershellScript("npm set progress=false;");
});