default currentDir = '${Directory.GetCurrentDirectory()}'
default nodeDir = '${Path.Combine(currentDir, "bin", "nodejs")}'

var gruntCliGloballyInstalled = '${TestCommand("grunt", "--version")}'
var gruntCliInstalled = '${Directory.Exists(Path.Combine(nodeDir, "node_modules", "grunt-cli"))}'
var gruntCmd = '${ gruntCliGloballyInstalled ? "grunt" : Path.Combine(nodeDir, "node_modules", "grunt-cli") }'

-// Install grunt-cli locally
npm npmCommand='install --prefix ${nodeDir} grunt-cli' if='!(gruntCliGloballyInstalled || gruntCliInstalled)' once='installGruntCli'

-// Run grunt
exec program='cmd' commandline='/C ${gruntCmd}' workingdir='${gruntDir}' if='gruntCliGloballyInstalled'
node nodeCommand='${Path.Combine(nodeDir, "node_modules", "grunt-cli", "bin", "grunt")}' workingdir='${gruntDir}' if='!gruntCliGloballyInstalled'